CN212563890U - Balance cylinder energy storage booster-type hydraulic drive mechanism - Google Patents
Balance cylinder energy storage booster-type hydraulic drive mechanism Download PDFInfo
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- CN212563890U CN212563890U CN202021134272.8U CN202021134272U CN212563890U CN 212563890 U CN212563890 U CN 212563890U CN 202021134272 U CN202021134272 U CN 202021134272U CN 212563890 U CN212563890 U CN 212563890U
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Abstract
The utility model discloses a balance cylinder energy storage booster-type hydraulic driving mechanism, which comprises a reciprocating motion type hydraulic power mechanism, a working cylinder and a booster switching mechanism, wherein the booster switching mechanism comprises a step difference cylinder, a step difference piston assembly is arranged in the step difference cylinder, and a cavity is arranged between the other end of the step difference piston assembly and the step difference cylinder; the position, corresponding to the cavity, of the differential cylinder is connected with a balance cylinder, and the balance cylinder balances piston force energy storage in a reverse return stroke and can release the energy storage in a forward direction; the utility model adds a balance energy storage and pressurization conversion mechanism on the traditional reciprocating motion type hydraulic power mechanism, realizes the energy storage in the return stroke process of the piston and releases the energy storage in the forward operation, and provides reverse balance force in the energy storage process, on one hand, the piston force is balanced, the stress state of the piston assembly is improved, and the vibration of the power in the return stroke process is avoided; on the other hand, the energy is stored and released, the power is reduced, the original working load is maintained, and the configuration of the main power can be reduced.
Description
Technical Field
The utility model relates to a hydraulic power unit technical field specifically is a balanced jar energy storage booster-type hydraulic drive mechanism.
Background
Most of the existing hydraulic driving mechanisms have the situations of half-stroke work application and half-stroke idle discharge. If the existing diaphragm pump drives a piston or a plunger to do reciprocating motion by a driving mechanism, the piston or the plunger pushes oil in an oil cylinder to further push a main pump; the half-stroke work application and the half-stroke idle discharge cause the vibration of power. Meanwhile, the energy utilization rate is not high, and unbalanced stress on the driving assembly is easily caused in the other half-stroke air-release reverse return stroke process, so that the service life of the driving assembly is influenced;
therefore, the inventor provides a balance cylinder energy storage booster-type hydraulic driving mechanism by integrating various factors.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a balanced jar energy storage booster-type hydraulic drive mechanism to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a balance cylinder energy storage pressurization type hydraulic driving mechanism comprises a reciprocating motion type hydraulic power mechanism and a working cylinder, wherein a balance energy storage pressurization conversion mechanism is arranged between the hydraulic power mechanism and the working cylinder, the balance energy storage pressurization conversion mechanism comprises a step difference cylinder, a step difference piston assembly is arranged in the step difference cylinder, one end of the step difference piston assembly is connected with the hydraulic power mechanism, and the other end of the step difference piston assembly is connected with the working cylinder; one end of the differential piston assembly, which is connected with the working cylinder, is in sliding fit with the differential cylinder; a cavity is arranged between the other end of the differential piston assembly and the differential cylinder; a balance cylinder is connected to the level difference cylinder corresponding to the cavity; and is communicated with the oil path of the balance cylinder; hydraulic oil serving as an energy storage medium is filled in the cavity; the balance cylinder reversely returns to balance the piston force energy storage and releases the energy storage when running in the forward direction;
when the hydraulic power mechanism works, the hydraulic power mechanism drives the differential piston assembly to positively run in the differential cylinder, the differential piston assembly drives the working cylinder to work, when the hydraulic power mechanism reversely returns, the differential piston assembly is driven to reversely run, the differential piston assembly reversely extrudes hydraulic oil in the cavity, and the cavity is connected with a balance cylinder, so that the volume and the pressure in the cavity can be adjusted through the balance cylinder, the volume is matched with a balance volume formed by the differential piston assembly, and energy storage and energy release can be carried out as required; the balance cylinder absorbs the kinetic energy of the differential piston assembly during the reverse return stroke of the differential piston assembly, so that the reverse return stroke energy storage is realized; when the differential piston assembly is driven to operate in the forward direction, the balance cylinder boosts the differential piston assembly in the forward direction through the cavity and outputs the boosted differential piston assembly through the working cylinder.
As a further aspect of the present invention: the step piston assembly comprises a step small piston and a step large piston which are connected in series; the small step difference piston is connected with the hydraulic power mechanism and forms a cavity with the step difference cylinder; the large-step-difference piston is in sliding fit with the step-difference cylinder and is connected with the working cylinder, so that the large-step-difference piston is convenient to work in cooperation with the balance cylinder.
As a further aspect of the present invention: the connection part of the piston with small grade difference and the piston with large grade difference is in conical transition, so that energy storage is smooth, and stability is improved.
As a further aspect of the present invention: the balance cylinder is a diaphragm type balance cylinder or a spring piston balance cylinder.
As a further aspect of the present invention: the working cylinder is a high-pressure diaphragm pump cylinder, and a high-pressure piston on the high-pressure diaphragm pump cylinder is connected with a large-step-difference piston.
As a further aspect of the present invention: the hydraulic power mechanism comprises a crankcase, a crankshaft, a connecting rod and a crosshead, wherein the crosshead is arranged in the middle body and is connected with the piston with the small step difference.
It should also be noted that the balancing cylinder provides a balancing piston force: the piston force of the original single-action working cylinder is equal to the area of the high-pressure piston multiplied by the oil pressure, and after the balance cylinder is arranged, the balance piston force is formed, so that part of the high-pressure piston force is counteracted, the balance piston force and the high-pressure piston force are a pair of forces in opposite directions, and the balance piston force and the high-pressure piston force have the mutual counteraction effect; the oil pressure of the balance cylinder exists all the time, and the balance piston force also exists all the time, fluctuates in a certain range and is circularly reciprocated; thereby, the area of the high-pressure piston can be properly increased, and the flow multiplication of the working cylinder can be realized.
Compared with the prior art, the utility model discloses the beneficial effect of following several aspects has:
1. the utility model provides a balance cylinder energy storage booster-type hydraulic driving mechanism, the structure is set up ingeniously and the arrangement is reasonable, the utility model adds a balance energy storage booster switching mechanism on the traditional reciprocating motion type hydraulic power mechanism, realizes the energy storage of the piston reverse return stroke process and releases the energy storage when running in the forward direction, and provides the reverse balance force in the energy storage process, thus balancing the piston force; because the energy storage medium in the cavities of the balance cylinder and the differential cylinder is hydraulic oil, the volume and the pressure in the cavities can be adjusted through the balance cylinder, and the volume is matched with the balance volume formed by the differential piston assembly; storing energy and releasing stored energy according to requirements; on one hand, the utility model balances the piston force, thereby avoiding the vibration of power in the reverse return stroke process; on the other hand, the energy is stored and released, the power can be reduced, the original working load can be maintained, and the configuration of the main power can be reduced.
2. The utility model discloses further because the existence of balance cylinder, the balance cylinder provides reverse balancing power to the level difference piston assembly at the hydraulic fluid in the energy storage in-process level difference jar, has solved the unilateral atress of the reverse return stroke of traditional working cylinder and the little technical problem that leads to wearing parts life-span low among the moving part of counter-force angle.
3. The utility model further provides a conical transition at the joint of the small-grade-difference piston and the large-grade-difference piston; the energy storage is smooth, and the stability is improved; the utility model discloses further the balance cylinder is diaphragm type balance cylinder or spring piston balance cylinder, and the energy storage is effectual.
Drawings
Fig. 1 is a schematic structural diagram of a balancing cylinder energy storage and pressurization type hydraulic driving mechanism.
Fig. 2 is a schematic structural diagram of a first embodiment of a balancing cylinder energy storage and pressurization type hydraulic driving mechanism.
Fig. 3 is a schematic structural diagram of a second embodiment of a balancing cylinder energy storage and pressurization type hydraulic driving mechanism.
In the figure: 1. a crankcase; 2. a crankshaft; 3. a connecting rod; 4. a crosshead; 5. a middle body; 6. a balancing cylinder; 601. a diaphragm type balance cylinder; 602. a spring piston balancing cylinder; 7. a piston with small step difference; 8. a stage difference cylinder; 9. a piston with a large step difference; 10. a high pressure piston; 11. a working cylinder.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
The first embodiment is as follows: referring to fig. 1-3, a balance cylinder energy storage booster hydraulic drive mechanism comprises a crankcase 1, a crankshaft 2, a connecting rod 3 and a crosshead 4, wherein the crosshead 4 is arranged in a middle body 5 and is connected with a small-step-difference piston 7; the hydraulic power mechanism is characterized by further comprising a working cylinder 11 and a differential cylinder 8, wherein a differential piston assembly is arranged in the differential cylinder 8, one end of the differential piston assembly is connected with the hydraulic power mechanism, and the other end of the differential piston assembly is connected with the working cylinder 11; one end of the differential piston assembly, which is connected with the working cylinder 11, is in sliding fit with the differential cylinder 8; a cavity is arranged between the other end of the step piston assembly and the step cylinder 8; the position, corresponding to the cavity, of the differential cylinder 8 is connected with a balance cylinder 6 and is communicated with an oil way of the balance cylinder 6; hydraulic oil serving as an energy storage medium is filled in the cavity; the step piston assembly comprises a step small piston 7 and a step large piston 9 which are connected in series; the small step difference piston 7 is connected with a hydraulic power mechanism and forms a cavity with the step difference cylinder 8; the large-step-difference piston 9 is in sliding fit with the step-difference cylinder 8 and is connected with the working cylinder 11; the connection part of the small-step-difference piston 7 and the large-step-difference piston 9 is in conical transition.
The balance cylinder 6 in this embodiment is a diaphragm type balance cylinder 601; the working cylinder 11 is a high-pressure diaphragm pump cylinder, and a high-pressure piston 10 on the high-pressure diaphragm pump cylinder is connected with the large-level-difference piston 9.
The utility model discloses a theory of operation is: when the energy storage device works, a crankcase 1 drives a crosshead 4 to move through a crankshaft 2 and a connecting rod 3, the crosshead 4 drives a small-step-difference piston 7 and a large-step-difference piston 9 to move forward in a step-difference cylinder 8, the small-step-difference piston 7 and the large-step-difference piston 9 drive a high-pressure diaphragm pump cylinder to work through a high-pressure piston 10, the small-step-difference piston 7 and the large-step-difference piston 9 move reversely when the crosshead 4 is driven to return reversely, the large-step-difference piston 9 extrudes hydraulic oil in a cavity through reverse direction, and the balance cylinder 6 is connected to the position of the cavity, so that the balance cylinder 6 absorbs kinetic energy of the small-step-difference piston 7 and the large-step-difference; and when the small-step-difference piston 7 and the large-step-difference piston 9 are driven to operate in the forward direction, the balance cylinder 6 positively pressurizes the large-step-difference piston 9 through the cavity and outputs the pressurized air through the working cylinder 11.
Example two: the only difference between this embodiment and the first embodiment is: the balance cylinder 6 is a spring piston balance cylinder 602, and the spring piston balance cylinder 602 stores energy in the reverse return stroke process and is used for pressurization in the forward running process.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.
Claims (6)
1. A balance cylinder energy storage booster type hydraulic driving mechanism comprises a reciprocating motion type hydraulic power mechanism and a working cylinder (11), and is characterized in that a balance energy storage booster conversion mechanism is arranged between the hydraulic power mechanism and the working cylinder (11), the balance energy storage booster conversion mechanism comprises a step difference cylinder (8), a step difference piston assembly is arranged in the step difference cylinder (8), one end of the step difference piston assembly is connected with the hydraulic power mechanism, and the other end of the step difference piston assembly is connected with the working cylinder (11); one end of the differential piston assembly, which is connected with the working cylinder (11), is in sliding fit with the differential cylinder (8); a cavity is arranged between the other end of the differential piston assembly and the differential cylinder (8); the position, corresponding to the cavity, of the differential cylinder (8) is connected with a balance cylinder (6) which can store energy by reverse return stroke balance piston force and can release the stored energy forward, the balance cylinder is communicated with an oil way of the balance cylinder (6), and hydraulic oil serving as an energy storage medium is filled in the cavity.
2. A balance cylinder charged booster hydraulic drive mechanism according to claim 1 characterised in that the step piston assembly comprises a step small piston (7) and a step large piston (9) connected in series; the small step difference piston (7) is connected with a hydraulic power mechanism and forms a cavity with the step difference cylinder (8); the large-step-difference piston (9) is in sliding fit with the step-difference cylinder (8) and is connected with the working cylinder (11).
3. A balance cylinder charged booster hydraulic drive mechanism according to claim 2 characterised in that the junction of the small step piston (7) and the large step piston (9) is a conical transition.
4. A balance cylinder charged hydraulic drive mechanism according to any one of claims 1-3, characterized in that the balance cylinder (6) is a diaphragm type balance cylinder (601) or a spring piston balance cylinder (602).
5. A balance cylinder energy storage booster type hydraulic driving mechanism according to claim 4, characterized in that the working cylinder (11) is a high pressure diaphragm pump cylinder, and a high pressure piston (10) on the high pressure diaphragm pump cylinder is connected with a large step difference piston (9).
6. A balance cylinder energy storage booster type hydraulic driving mechanism according to claim 4, characterized in that the hydraulic power mechanism comprises a crankcase (1), a crankshaft (2), a connecting rod (3) and a crosshead (4), and the crosshead (4) is arranged in the middle body (5) and is connected with the step difference small piston (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021134272.8U CN212563890U (en) | 2020-06-18 | 2020-06-18 | Balance cylinder energy storage booster-type hydraulic drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021134272.8U CN212563890U (en) | 2020-06-18 | 2020-06-18 | Balance cylinder energy storage booster-type hydraulic drive mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN212563890U true CN212563890U (en) | 2021-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021134272.8U Active CN212563890U (en) | 2020-06-18 | 2020-06-18 | Balance cylinder energy storage booster-type hydraulic drive mechanism |
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| CN (1) | CN212563890U (en) |
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Effective date of registration: 20220308 Address after: 528200 plant 2, building C7, No. 8, Lizhong Road, Danzao logistics center, Danzao Town, Nanhai District, Foshan City, Guangdong Province (residence declaration) Patentee after: Guangdong foran Tiangao fluid machinery equipment Co.,Ltd. Address before: 610300 area B, No.4 workshop, No.339 Jiufeng Road, Industrial Development Zone, Qingbaijiang District, Chengdu City, Sichuan Province Patentee before: Chengdu Tiangao Electrical and Mechanical Equipment Co.,Ltd. |