CN213017561U - Booster-type hydraulic driving mechanism of bag type energy accumulator - Google Patents
Booster-type hydraulic driving mechanism of bag type energy accumulator Download PDFInfo
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- CN213017561U CN213017561U CN202021134255.4U CN202021134255U CN213017561U CN 213017561 U CN213017561 U CN 213017561U CN 202021134255 U CN202021134255 U CN 202021134255U CN 213017561 U CN213017561 U CN 213017561U
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Abstract
The utility model discloses a supercharged hydraulic driving mechanism of a bag-type energy accumulator, which comprises a reciprocating hydraulic power mechanism, a working cylinder and a bag-type reverse return energy accumulation supercharging mechanism, wherein the bag-type reverse return energy accumulation supercharging mechanism comprises a differential cylinder, a differential piston assembly is arranged in the differential cylinder, and a cavity is arranged between the other end of the differential piston assembly and the differential cylinder; a bag type energy accumulator is connected to the position, corresponding to the cavity, of the level difference cylinder, and the energy is stored by reversely balancing piston force and is released in the positive direction; the utility model adds the bag type reverse return energy storage supercharging mechanism on the traditional reciprocating motion hydraulic power mechanism, realizes the energy storage in the piston return process and releases the energy storage in the forward operation, and provides the 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 power oscillation in the return 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 drive mechanism specifically is a bag formula energy storage ware 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 supercharged hydraulic driving mechanism of a bag type energy accumulator by combining various factors.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pressure-charged hydraulic drive mechanism of bag formula energy storage ware 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 booster-type hydraulic driving mechanism of a bag-type energy accumulator comprises a reciprocating hydraulic power mechanism and a working cylinder, wherein a bag-type reverse return stroke energy accumulation booster mechanism is arranged between the hydraulic power mechanism and the working cylinder, the bag-type reverse return stroke energy accumulation booster 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; hydraulic oil serving as an energy storage medium is filled in the cavity; the level difference cylinder is connected with a bag type energy accumulator corresponding to the cavity, and the bag type energy accumulator balances the piston force energy storage in the reverse return stroke and releases the energy storage in the forward operation;
when the hydraulic power mechanism works, the hydraulic power mechanism drives the differential piston assembly to move forwards in the differential cylinder, the differential piston assembly drives the working cylinder to work, when the hydraulic power mechanism returns reversely, the differential piston assembly is driven to move reversely, the differential piston assembly extrudes oil in the cavity through reverse extrusion, and the cavity is connected with the bag-type energy accumulator, so that the bag-type energy accumulator absorbs kinetic energy of the differential piston assembly when the differential piston assembly returns reversely, and reverse return energy storage is realized; because the energy storage media in the cavity of the bag type energy accumulator and the cavity of the differential cylinder are hydraulic oil, the volume and the pressure in the cavity can be adjusted through the bag type energy accumulator, the volume is matched with the balance volume formed by the differential piston assembly, energy is stored and released according to the requirement, and the hydraulic oil in the differential cylinder provides reverse balance force for the differential piston assembly in the energy storage process of the bag type energy accumulator; and when the later-stage difference piston assembly is driven to operate in the forward direction, the bag type energy accumulator positively pressurizes the later-stage difference piston assembly through the cavity and outputs the later-stage difference 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.
As a further aspect of the present invention: and the connection part of the small-step-difference piston and the large-step-difference piston is in conical transition.
As a further aspect of the present invention: the working cylinder is a high-pressure diaphragm pump cylinder or a horizontal plunger hydraulic pump cylinder, and a high-pressure piston on the high-pressure diaphragm pump cylinder or the horizontal plunger hydraulic pump cylinder is connected with a large-grade-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 be noted that: bladder accumulators are prior art; the air bag in the volume of the bag type energy accumulator divides the volume into: the hydraulic oil part and the control gas part are separated by the bag, when energy is stored, the volume (volume) of oil is increased, the partial volume (volume) of gas is reduced, and the pressure is increased, so-called 'energy storage' is formed, when the hydraulic oil moves upwards along with the balance piston (when the working piston moves upwards to compress gas), the hydraulic oil in the bag type energy accumulator can run into the 'cavity', the release energy of the energy accumulator is formed, the volume of the oil part in the bag type energy accumulator is reduced, the volume of the control gas part is increased, so that the gas pressure is also reduced, and the ratio of the volume of the bag type energy accumulator to the stroke volume of the balance piston is the pressure fluctuation ratio; at present, the bag accumulator is mainly used in a hydraulic system, and pressure fluctuation of the system is reduced through the bag accumulator. The utility model discloses creatively utilizes this fluctuation to realize energy storage and release energy.
It should also be noted that the bladder accumulator provides a balance piston force: the piston force of the original single-action working cylinder is equal to the area of a high-pressure piston multiplied by oil pressure, and a balance piston force is formed after the bag type energy accumulator is arranged, 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 bag type energy accumulator exists all the time, the balance piston force also exists all the time, only fluctuates in a certain range, and the balance piston force is in cyclic reciprocation; 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 supercharged hydraulic driving mechanism of a bag type energy accumulator, which is skillfully arranged and reasonably arranged, and is characterized in that a bag type reverse return energy accumulation supercharging mechanism is additionally arranged on a traditional reciprocating motion type hydraulic power mechanism to realize the energy accumulation in the reverse return process of a piston and release the energy accumulation when the piston operates in the forward direction, and provide reverse balance force in the energy accumulation process, thus balancing the piston force; because the medium that the energy storage in bag formula energy storage ware and the level difference jar cavity is hydraulic oil, can adjust cavity internal volume and pressure through bag formula energy storage ware, the volume is the balanced volume that forms with the level difference piston subassembly matches, energy storage and release energy storage as required, the utility model discloses an aspect is because balanced piston power, avoids causing the shock of power in the 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 provides a reverse balance force for the level difference piston component by the hydraulic oil in the level difference cylinder in the energy storage process of the bag type energy accumulator; the technical problem of the traditional working cylinder that the service life of a quick-wear part in a moving part is short due to the fact that reverse return stroke unilateral stress and a reverse force angle are small is solved.
3. The utility model further designs the differential piston assembly, which comprises a differential small piston and a differential 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; the work of the bag type energy accumulator is convenient to match.
4. 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.
Drawings
Fig. 1 is a schematic structural diagram of a pressurized hydraulic driving mechanism of a bag accumulator.
Fig. 2 is a schematic structural diagram of a first embodiment of a pressurized hydraulic drive mechanism with a bladder accumulator.
Fig. 3 is a schematic structural diagram of a second embodiment of a supercharged hydraulic driving mechanism with a bag-type accumulator.
In the figure: 1. a crankcase; 2. a crankshaft; 3. a connecting rod; 4. a crosshead; 5. a middle body; 6. a bladder accumulator; 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; 1101. a high pressure diaphragm pump cylinder; 1102. horizontal plunger hydraulic pump 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 pressurized hydraulic driving mechanism of a bag-type energy accumulator comprises a reciprocating hydraulic power mechanism and a working cylinder 11, wherein a bag-type reverse return energy accumulation pressurization mechanism is arranged between the hydraulic power mechanism and the working cylinder 11, the bag-type reverse return energy accumulation pressurization 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 step piston assembly and the step cylinder 8; hydraulic oil serving as an energy storage medium is filled in the cavity; a bladder type energy accumulator 6 for return energy accumulation is connected to the level difference cylinder 8 corresponding to 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 working cylinder 11 is a high-pressure diaphragm pump cylinder 1101, and a high-pressure piston 10 on the high-pressure diaphragm pump cylinder 1101 is connected with a large-step-difference piston 9; the hydraulic power mechanism comprises a crankshaft 2 box 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.
Example two: the difference between this embodiment and the first embodiment is that the working cylinder 11 is a horizontal plunger hydraulic pump cylinder 1102, and a high-pressure piston on the horizontal plunger hydraulic pump cylinder 1102 is connected with the large-step-difference piston 9.
The utility model discloses a theory of operation is: when the hydraulic power mechanism works, the hydraulic power mechanism drives the differential piston assembly to move forwards in the differential cylinder 8, the differential piston assembly drives the working cylinder 11 to work, when the hydraulic power mechanism returns reversely, the differential piston assembly is driven to move reversely, the differential piston assembly extrudes oil in the cavity through reverse direction, and the cavity is connected with the bag-type energy accumulator 6, so that the bag-type energy accumulator 6 absorbs kinetic energy of the differential piston assembly when the differential piston assembly returns reversely, and reverse return energy storage is realized; because the energy storage medium in the cavity of the bag type energy accumulator and the cavity of the differential cylinder is hydraulic oil, the volume and the pressure in the cavity can be adjusted through the bag type energy accumulator, the volume is matched with the balance volume formed by the differential piston assembly, and the energy is stored and released as required; the hydraulic oil in the step cylinder 8 of the bag type energy accumulator 6 provides reverse balance force for the step piston assembly in the energy accumulation process; and when the differential piston assembly is driven to operate in the forward direction, the bag type energy accumulator 6 is used for positively pressurizing the differential piston assembly through the cavity and outputting the pressurized differential piston assembly through the working cylinder 11.
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 (3)
1. A booster-type hydraulic driving mechanism of a bag-type energy accumulator comprises a reciprocating hydraulic power mechanism and a working cylinder (11), and is characterized in that a bag-type reverse return energy storage booster mechanism is arranged between the hydraulic power mechanism and the working cylinder (11), the bag-type reverse return energy storage booster 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); hydraulic oil serving as an energy storage medium is filled in the cavity; a reverse return stroke balance piston force energy storage and energy storage releasing bag type energy storage device (6) in forward operation are connected to the level difference cylinder (8) corresponding to 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.
2. The supercharged hydraulic drive mechanism of claim 1, characterized in that the working cylinder (11) is a high-pressure diaphragm pump cylinder (1101) or a horizontal plunger hydraulic pump cylinder (1102), and a high-pressure piston (10) on the high-pressure diaphragm pump cylinder (1101) or the horizontal plunger hydraulic pump cylinder (1102) is connected with the large-step-difference piston (9).
3. The supercharged hydraulic drive of the accumulator, as set forth in claim 2, characterized in that the hydraulically powered mechanism comprises a crankshaft (2) housing (1), a crankshaft (2), a connecting rod (3) and a crosshead (4), the crosshead (4) being arranged in the intermediate body (5) and being connected to the step-difference small piston (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021134255.4U CN213017561U (en) | 2020-06-18 | 2020-06-18 | Booster-type hydraulic driving mechanism of bag type energy accumulator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021134255.4U CN213017561U (en) | 2020-06-18 | 2020-06-18 | Booster-type hydraulic driving mechanism of bag type energy accumulator |
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| CN213017561U true CN213017561U (en) | 2021-04-20 |
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| CN202021134255.4U Active CN213017561U (en) | 2020-06-18 | 2020-06-18 | Booster-type hydraulic driving mechanism of bag type energy accumulator |
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Effective date of registration: 20220301 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. |
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