CN212690499U - Double-stroke hydraulic driving mechanism - Google Patents
Double-stroke hydraulic driving mechanism Download PDFInfo
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- CN212690499U CN212690499U CN202021258985.5U CN202021258985U CN212690499U CN 212690499 U CN212690499 U CN 212690499U CN 202021258985 U CN202021258985 U CN 202021258985U CN 212690499 U CN212690499 U CN 212690499U
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Abstract
The embodiment of the utility model provides a about a double-stroke hydraulic drive mechanism relates to mechanical equipment technical field, and main aim at provides a double-stroke hydraulic drive mechanism. The main technical scheme adopted is as follows: the double-stroke hydraulic drive mechanism comprises: the hydraulic cylinder body is internally provided with a first oil cavity; the piston rod comprises a hydraulic rod, a first piston and a second piston, wherein the first piston is slidably arranged in a first oil cavity, a second oil cavity is formed in the first piston, the second piston is arranged at the first end of the hydraulic rod, the second piston is slidably arranged in the second oil cavity, the second end of the hydraulic rod extends out of the first oil cavity, and a hydraulic cylinder body is provided with an oil inlet and an oil outlet which are communicated with the first oil cavity and the second oil cavity. Compared with the prior art, the hydraulic rod can realize double strokes.
Description
Technical Field
The embodiment of the utility model provides a relate to mechanical equipment technical field, especially relate to a double-stroke hydraulic drive mechanism.
Background
The hydraulic driving mechanism comprises a hydraulic cylinder and a hydraulic rod arranged in the hydraulic cylinder, and the working principle of the hydraulic driving mechanism is that hydraulic oil is introduced into the hydraulic cylinder body, so that the hydraulic rod in the hydraulic cylinder body is pushed out by the hydraulic oil in the cylinder body, and power output is realized.
For different application scenes, the stroke distances required to be pushed by the hydraulic rods are different, and the lengths of the corresponding hydraulic rods and the lengths of the corresponding hydraulic cylinders are required to be correspondingly matched. In practice, the length of the hydraulic cylinder needs to be greater than the stroke distance that the hydraulic rod needs to push. In response to certain special situations, the size of the hydraulic drive mechanism cannot be sufficient for installation, and therefore, the hydraulic drive mechanism of the prior art cannot be used to achieve the required stroke distance of the hydraulic rod.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the present invention provides a double-stroke hydraulic driving mechanism, and a main object of the present invention is to provide a double-stroke hydraulic driving mechanism.
In order to achieve the above object, the embodiment of the present invention mainly provides the following technical solutions:
an embodiment of the utility model provides a double-stroke hydraulic drive mechanism, include:
the hydraulic cylinder body is internally provided with a first oil cavity;
a piston rod including a hydraulic rod, a first piston, and a second piston, wherein
The first piston is slidably arranged in the first oil cavity, a second oil cavity is arranged in the first piston, the second piston is arranged at the first end of the hydraulic rod, the second piston is slidably arranged in the second oil cavity, the second end of the hydraulic rod extends out of the first oil cavity, and the hydraulic cylinder body is provided with an oil inlet and an oil outlet which are communicated with the first oil cavity and the second oil cavity.
The embodiment of the utility model provides an aim and solve its technical problem still can adopt following technical measure to further realize.
Optionally, in the aforementioned double-stroke hydraulic driving mechanism, the oil inlet includes a first oil inlet and a second oil inlet;
the first oil inlet is communicated with the first oil cavity, and the second oil inlet is communicated with the second oil cavity.
Optionally, in the foregoing two-stroke hydraulic driving mechanism, the second end of the hydraulic rod extends out of the first oil chamber from the first end of the first oil chamber;
a slide rod is arranged in the first oil cavity, and the slide rod extends from the second end of the first oil cavity to the first end of the first oil cavity;
the first piston is slidably arranged on the sliding rod in a penetrating mode, and the sliding rod penetrates through the second piston through the first piston and extends into a cavity of the hydraulic rod.
Optionally, the aforementioned two-stroke hydraulic drive mechanism, wherein the first piston has a first stroke distance in the first oil chamber;
the second piston has a second stroke distance within the second oil chamber.
Optionally, in the aforementioned two-stroke hydraulic driving mechanism, the length of the sliding rod is greater than the first stroke distance.
Optionally, in the aforementioned dual-stroke hydraulic driving mechanism, the second oil inlet extends into a cavity of the hydraulic rod from an oil injection channel in the sliding rod;
and a gap communicated with the second oil chamber is formed between the sliding rod and the cavity of the hydraulic rod.
Optionally, in the double-stroke hydraulic driving mechanism, the first oil inlet is communicated with a first oil inlet valve, and the second oil inlet is communicated with a second oil inlet valve.
Alternatively, the aforementioned two-stroke hydraulic drive mechanism, wherein the second piston is an integral component with the hydraulic rod.
Optionally, in the aforementioned dual-stroke hydraulic driving mechanism, the oil inlet is communicated with the first end of the first oil chamber, and the oil outlet is communicated with the second end of the first oil chamber;
the second oil chamber is in communication with a second end of the first oil chamber.
Optionally, in the aforementioned dual-stroke hydraulic driving mechanism, the oil inlet is communicated with the first end of the first oil chamber, and the oil outlet is communicated with the second end of the first oil chamber;
the second oil chamber is communicated with a first end of the first oil chamber.
Borrow by above-mentioned technical scheme, the utility model discloses technical scheme provides a double-stroke hydraulic drive mechanism has following advantage at least:
the utility model provides an in the embodiment, be provided with first piston in hydraulic cylinder body's first oil pocket, be provided with the second oil pocket in first piston, the second piston slidable ground of the first end of hydraulic stem sets up in the second oil pocket, and the second end of hydraulic stem stretches out outside the first oil pocket, pour into hydraulic oil into through the oil inlet to first oil pocket, can promote first piston and advance at first oil pocket to make the second piston in the first piston advance, and then make the hydraulic stem advance, pour into hydraulic oil into to the second oil pocket through the oil inlet, can promote the second piston and advance at the second oil pocket, thereby make the second piston advance at second oil pocket, and then make the hydraulic stem further advance, for prior art, the hydraulic stem can realize the double stroke.
The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the embodiments of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of a two-stroke hydraulic driving mechanism according to an embodiment of the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the objectives of the embodiments of the present invention, the following detailed description will be given, with reference to the accompanying drawings and preferred embodiments, of the specific embodiments, structures, features and effects of the double-stroke hydraulic driving mechanism according to the embodiments of the present invention. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Fig. 1 is an embodiment of the dual-stroke hydraulic driving mechanism provided by the present invention, please refer to fig. 1, an embodiment of the present invention provides a dual-stroke hydraulic driving mechanism, including:
a hydraulic cylinder block 10 in which a first oil chamber 11 is provided;
a piston rod 20 including a hydraulic rod 21, a first piston 22 and a second piston 23, wherein
The first piston 22 is slidably disposed in the first oil chamber 11, a second oil chamber 24 is disposed in the first piston 22, the second piston 23 is disposed at a first end of the hydraulic rod 21, the second piston 23 is slidably disposed in the second oil chamber 24, a second end of the hydraulic rod 21 extends out of the first oil chamber 11, and the hydraulic cylinder 10 is provided with an oil inlet 30 and an oil outlet 40 which are communicated with the first oil chamber 11 and the second oil chamber 24.
The utility model provides an in the embodiment, be provided with first piston in hydraulic cylinder body's first oil pocket, be provided with the second oil pocket in first piston, the second piston slidable ground of the first end of hydraulic stem sets up in the second oil pocket, and the second end of hydraulic stem stretches out outside the first oil pocket, pour into hydraulic oil into through the oil inlet to first oil pocket, can promote first piston and advance at first oil pocket to make the second piston in the first piston advance, and then make the hydraulic stem advance, pour into hydraulic oil into to the second oil pocket through the oil inlet, can promote the second piston and advance at the second oil pocket, thereby make the second piston advance at second oil pocket, and then make the hydraulic stem further advance, for prior art, the hydraulic stem can realize the double stroke.
The hydraulic cylinder body 10 is cylindrical, a shaft hole is formed in a first end of the hydraulic cylinder body 10, the liquid supply pressure rod 20 extends out, and a second end of the hydraulic cylinder body 10 is closed.
The number of the oil inlets can be one, and the double strokes of the hydraulic rods are simultaneously controlled through the single oil inlet. In implementation, the oil inlet is communicated with the first end of the first oil chamber, and the oil outlet is communicated with the second end of the first oil chamber; the second oil chamber is communicated with a first end of the first oil chamber. The hydraulic oil injected into the oil inlet can enter the first oil cavity and the second oil cavity simultaneously.
The number of the oil inlets can also be two, and the oil inlet 30 comprises a first oil inlet 31 and a second oil inlet 32; the first oil inlet 31 is communicated with the first oil chamber 11, and the second oil inlet 32 is communicated with the second oil chamber 24. The first oil inlet 31 is communicated with a first oil inlet valve, and the second oil inlet 32 is communicated with a second oil inlet valve. And opening the first oil inlet valve, enabling the hydraulic oil to enter the first oil cavity, enabling the first piston to travel a first stroke distance in the first oil cavity, and enabling the hydraulic rod to travel the first stroke distance. And opening a second oil inlet valve, enabling the hydraulic oil to enter a second oil cavity, enabling a second piston to travel a second stroke distance in the second oil cavity, and enabling the hydraulic rod to travel the second stroke distance again.
In a specific implementation, the second end of the hydraulic rod 21 extends out of the first oil chamber 11 from the first end of the first oil chamber 11; a slide rod 12 is arranged in the first oil chamber 11, and the slide rod 12 extends from the second end of the first oil chamber 11 to the first end of the first oil chamber 11; the first piston 22 is slidably disposed through the slide rod 12, and the slide rod 12 extends through the second piston 23 via the first piston 22 into a cavity of the hydraulic rod 21. In implementation, the second oil inlet extends into a cavity of the hydraulic rod from an oil injection channel in the sliding rod; and a gap communicated with the second oil chamber is formed between the sliding rod and the cavity of the hydraulic rod. And hydraulic oil entering the second oil inlet enters the gap through the oil injection channel and then is injected into the second oil cavity, so that the second piston is pushed to advance in the second oil cavity.
Wherein the length of the sliding rod is greater than the first travel distance. The first piston is adapted to maintain the first piston slidably coupled to the rod during reciprocal movement within the first oil chamber for a first stroke distance.
Specifically, the second piston 23 and the hydraulic rod 21 may be an integral component, or both may be assembled by separate components.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
It will be appreciated that the relevant features of the devices described above may be referred to one another. In addition, "first", "second", and the like in the above embodiments are for distinguishing the embodiments, and do not represent merits of the embodiments.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed apparatus should not be construed to reflect the intent as follows: rather, the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the components of the apparatus of the embodiments may be adapted and arranged in one or more arrangements different from the embodiments. The components of the embodiments may be combined into one component and, in addition, they may be divided into a plurality of sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the components of any apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination. The various component embodiments of the present invention may be implemented in hardware, or in a combination thereof.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or components not listed in a claim. The word "a" or "an" preceding a component or element does not exclude the presence of a plurality of such components or elements. The present invention can be implemented with the aid of a device comprising a number of different components. In the claims enumerating several means, several of these means may be embodied by one and the same item. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (10)
1. A two-stroke hydraulic drive mechanism, comprising:
the hydraulic cylinder body is internally provided with a first oil cavity;
a piston rod including a hydraulic rod, a first piston, and a second piston, wherein
The first piston is slidably arranged in the first oil cavity, a second oil cavity is arranged in the first piston, the second piston is arranged at the first end of the hydraulic rod, the second piston is slidably arranged in the second oil cavity, the second end of the hydraulic rod extends out of the first oil cavity, and the hydraulic cylinder body is provided with an oil inlet and an oil outlet which are communicated with the first oil cavity and the second oil cavity.
2. The two-stroke hydraulic drive mechanism of claim 1,
the oil inlet comprises a first oil inlet and a second oil inlet;
the first oil inlet is communicated with the first oil cavity, and the second oil inlet is communicated with the second oil cavity.
3. The two-stroke hydraulic drive mechanism of claim 2,
the second end of the hydraulic rod extends out of the first oil chamber from the first end of the first oil chamber;
a slide rod is arranged in the first oil cavity, and the slide rod extends from the second end of the first oil cavity to the first end of the first oil cavity;
the first piston is slidably arranged on the sliding rod in a penetrating mode, and the sliding rod penetrates through the second piston through the first piston and extends into a cavity of the hydraulic rod.
4. The two-stroke hydraulic drive mechanism of claim 3,
the first piston has a first stroke distance within the first oil chamber;
the second piston has a second stroke distance within the second oil chamber.
5. The two-stroke hydraulic drive mechanism of claim 4,
the length of the sliding rod is greater than the first travel distance.
6. The two-stroke hydraulic drive mechanism of claim 3,
the second oil inlet extends into the cavity of the hydraulic rod from an oil injection channel in the sliding rod;
and a gap communicated with the second oil chamber is formed between the sliding rod and the cavity of the hydraulic rod.
7. The two-stroke hydraulic drive mechanism of claim 2,
the first oil inlet is communicated with a first oil inlet valve, and the second oil inlet is communicated with a second oil inlet valve.
8. The two-stroke hydraulic drive mechanism of claim 1,
the second piston is an integral component with the hydraulic rod.
9. A two-stroke hydraulic drive mechanism according to any one of claims 1 to 8,
the oil inlet is communicated with the first end of the first oil chamber, and the oil outlet is communicated with the second end of the first oil chamber;
the second oil chamber is in communication with a second end of the first oil chamber.
10. The two-stroke hydraulic drive mechanism of claim 1,
the oil inlet is communicated with the first end of the first oil chamber, and the oil outlet is communicated with the second end of the first oil chamber;
the second oil chamber is communicated with a first end of the first oil chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021258985.5U CN212690499U (en) | 2020-07-01 | 2020-07-01 | Double-stroke hydraulic driving mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021258985.5U CN212690499U (en) | 2020-07-01 | 2020-07-01 | Double-stroke hydraulic driving mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN212690499U true CN212690499U (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021258985.5U Active CN212690499U (en) | 2020-07-01 | 2020-07-01 | Double-stroke hydraulic driving mechanism |
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| Country | Link |
|---|---|
| CN (1) | CN212690499U (en) |
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- 2020-07-01 CN CN202021258985.5U patent/CN212690499U/en active Active
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