CN110873082A - Reciprocating supercharger capable of stably reversing - Google Patents
Reciprocating supercharger capable of stably reversing Download PDFInfo
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- CN110873082A CN110873082A CN201811013376.0A CN201811013376A CN110873082A CN 110873082 A CN110873082 A CN 110873082A CN 201811013376 A CN201811013376 A CN 201811013376A CN 110873082 A CN110873082 A CN 110873082A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B3/00—Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids
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- Fluid Mechanics (AREA)
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- General Engineering & Computer Science (AREA)
- Supercharger (AREA)
Abstract
The invention relates to a hydraulic pressure booster, in particular to a reciprocating booster capable of stably reversing, which comprises a reciprocating booster cylinder and a matched hydraulic control reversing valve, wherein the booster cylinder comprises a cylinder body, a piston arranged in the cylinder body, and a left piston rod and a right piston rod at two ends of the piston, the cylinder body comprises a middle piston cylinder and a left booster cylinder and a right booster cylinder at two ends, a left piston cavity and a right piston cavity are formed between the piston and the cylinder body, a left booster cavity is formed between the left piston rod and the cylinder body, a right booster cavity is formed between the right piston rod and the cylinder body, the outer diameters of the end parts of the left piston rod and the right piston rod are matched with the inner diameters of the left booster cylinder and the right booster cylinder. The invention expands the left and right piston cavities into the pressure cylinder by improving the piston rod structure, and the piston cavities always keep sufficient allowance when the piston is at the limit position, thereby effectively reducing the impact and greatly increasing the pressure stability and the reversing speed.
Description
Technical Field
The invention relates to a hydraulic supercharger, in particular to a reciprocating supercharger capable of stably reversing.
Background
The hydraulic pressure boosters used in the market at present are mainly traditional single-cylinder boosters and bidirectional reciprocating boosters. The existing reciprocating supercharger is mostly matched with an electromagnetic directional valve for reversing, but the electromagnetic directional valve has low flow and low reversing frequency, so that the stability of output pressure is poor, and only small-flow and low-pressure supercharging can be performed. The ultrahigh pressure supercharger disclosed in the Chinese patent ZL201520640556.7 and the reciprocating supercharger disclosed in the ZL201720584115.9 both realize hydraulic control reversing, can guarantee larger flow while carrying out ultrahigh pressure supercharging, but the reversing structure is more complex, the cost disadvantage is obvious when matching some comparatively small-sized devices, and the complex structure brings more leak points and higher failure rate.
When the piston of the reciprocating supercharger moves to the limit position on one side, the piston motion can generate hysteresis due to the fact that the space of the piston cavity on one side is sharply reduced, the oil port is shielded and the like, the reversing speed is influenced, and therefore the stability of the pressure is seriously influenced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a reciprocating supercharger capable of stably reversing.
The technical scheme adopted by the invention is as follows: the utility model provides a reciprocating type booster that can stabilize switching-over, is including reciprocating type pressure cylinder and the hydraulic control switching-over valve that matches, the pressure cylinder includes the left and right piston rod at piston, the piston both ends that cylinder body and cylinder body inside set up, the left and right pressure cylinder at piston cylinder and both ends in the middle of the cylinder body includes, forms left and right piston chamber between piston and the cylinder body, forms left pressure chamber between left piston rod and the cylinder body, forms right pressure chamber between right piston rod and the cylinder body, and hydraulic control switching-over valve A, B mouth is connected respectively piston chamber about the pressure cylinder, left and right piston rod tip external diameter with left and right pressure cylinder internal diameter matches, and tip to piston part external diameter is less than the tip external diameter.
The reciprocating supercharger capable of stably reversing is characterized in that: the left and right pressure cylinder walls are respectively provided with a left control port and a right control port, the left control port is connected with the left pilot port of the hydraulic control reversing valve, and the right control port is connected with the right pilot port of the hydraulic control reversing valve.
The reciprocating supercharger capable of stably reversing is characterized in that: the left control port is connected with a left overflow valve, and the right control port is connected with a right overflow valve.
According to the invention, the structure of the piston rod is improved, so that the left piston cavity and the right piston cavity are expanded into the pressurizing cylinder, and the piston cavities always keep sufficient allowance when the piston is at the limit position, thereby effectively reducing impact, greatly increasing the pressurizing stability and the reversing speed, simultaneously being capable of matching a simpler reversing structure, and reducing the manufacturing cost and the failure rate.
Drawings
FIG. 1 is a schematic view of a state-one configuration of the present invention;
FIG. 2 is a schematic diagram of a second embodiment of the present invention.
In the figure: 1-cylinder body, 2-piston, 3-left piston rod, 4-right piston rod, 6-left piston cavity, 7-right piston cavity, 8-left booster cavity, 9-right booster cavity, 10-hydraulic control reversing valve, 11-piston cylinder, 12-left booster cylinder, 13-right booster cylinder, 14-left overflow valve, 15-right overflow valve, 16-left control port and 17-right control port.
Detailed Description
As shown in figure 1, the hydraulic control reciprocating booster comprises a reciprocating booster cylinder, an electromagnetic directional valve 10, a left overflow valve 14 and a right overflow valve 15. The reciprocating type pressure cylinder comprises a cylinder body 1, the cylinder body is composed of a middle piston cylinder 11, a left pressure cylinder 12 and a right pressure cylinder 13, the piston 2 is arranged in the piston cylinder 11, a left piston rod 3 is arranged in a left pressure cavity, a right piston rod 4 is arranged in the right pressure cylinder 13, the outer diameters of the end parts of the left and right piston rods are matched with the inner diameters of the left and right pressure cylinders, the outer diameter from the end part to the piston part is smaller than the outer diameter of the end part, a left piston cavity 6 is formed among the end parts of the piston 2, the piston cylinder 11, the left pressure cylinder 12 and the left piston rod 3, a right piston cavity 7 is formed among the piston 2, the piston cylinder 11, the right pressure cylinder 13 and the right piston rod 4, a left pressure cavity 8 is formed between the outer end surface of the left piston rod 3 and.
The hydraulic control reversing valve 10 is a two-position four-way hydraulic control reversing valve, a port P is connected with a low-pressure pipeline P, a port T is connected with an oil return pipeline, a port A is connected with the left piston cavity 6, and a port B is connected with the right piston cavity 7.
The left pressure cylinder 12 is provided with a left control port 16, the right pressure cylinder 13 is provided with a right control port 17, the left control port 16 is connected with a left pilot port and a left overflow valve 14 of the hydraulic control reversing valve 10, the right control port 17 is connected with a right pilot port and a right overflow valve 15 of the hydraulic control reversing valve 10, and the left overflow valve 14 and the right overflow valve 15 are connected with an oil drainage pipeline X.
As shown in fig. 1, when the supercharger works, pressure oil in the low-pressure pipeline P enters the left pilot port of the hydraulic control reversing valve through the left supercharging cavity and the left control port, the right pilot port of the hydraulic control reversing valve has no pressure, the valve core of the hydraulic control reversing valve is in a left position, the port P is communicated with the port B, the port T is communicated with the port a, and the pressure oil in the low-pressure pipeline P enters the right piston cavity through the hydraulic control reversing valve to push the piston to move leftwards.
When the piston moves to the position shown in fig. 2, the left control port is disconnected with the left pressurizing cylinder, the pressure of the pilot port on the left side of the hydraulic control reversing valve disappears, the right control port is communicated with the right pressurizing cavity, pressure oil in the low-pressure oil path P enters the pilot port on the right side of the first hydraulic control one-way valve through the right pressurizing cavity and the right control port, the valve core of the hydraulic control reversing valve is in the right position, the port P is communicated with the port A, the port T is communicated with the port B, the pressure oil in the low-pressure oil path enters the left pressurizing cavity through the hydraulic control reversing valve, the piston is pushed to move rightwards, the right piston cavity returns oil through the port B and the port T, the right pressurizing cavity is.
Because the piston cavity is divided into the piston cylinder part and the pressure cylinder part, in the pressure boosting process, the piston cavity on one side of the pressure boosting direction is only reduced to be the piston cavity part, so even if the piston reaches the limit position, the corresponding piston cavity still has allowance, the generated impact is greatly reduced, and the pressure boosting and reversing stability is effectively ensured.
The left overflow valve and the right overflow valve are used for protecting the hydraulic control reversing valve from being impacted by high pressure and can also be removed, and the specific positions of the left control port and the right control port are determined by the working parameters of equipment.
Claims (3)
1. The utility model provides a reciprocating type booster that can stabilize switching-over, is including reciprocating type pressure cylinder and the hydraulic control switching-over valve that matches, the pressure cylinder includes the left and right piston rod at piston, the piston both ends that cylinder body and the inside setting of cylinder body, the cylinder body includes the left and right pressure cylinder at middle piston cylinder and both ends, forms left and right piston chamber between piston and the cylinder body, forms left pressure chamber between left piston rod and the cylinder body, forms right pressure chamber between right piston rod and the cylinder body, and hydraulic control switching-over valve A, B mouth is connected respectively piston chamber, characterized by about the pressure cylinder: the outer diameters of the end parts of the left and right piston rods are matched with the inner diameters of the left and right pressure cylinders, and the outer diameter of the part from the end part to the piston is smaller than the outer diameter of the end part.
2. The reciprocating booster of claim 1, wherein: the left and right pressure cylinder walls are respectively provided with a left control port and a right control port, the left control port is connected with the left pilot port of the hydraulic control reversing valve, and the right control port is connected with the right pilot port of the hydraulic control reversing valve.
3. The reciprocating booster of claim 2, wherein: the left control port is connected with a left overflow valve, and the right control port is connected with a right overflow valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811013376.0A CN110873082A (en) | 2018-08-31 | 2018-08-31 | Reciprocating supercharger capable of stably reversing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811013376.0A CN110873082A (en) | 2018-08-31 | 2018-08-31 | Reciprocating supercharger capable of stably reversing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110873082A true CN110873082A (en) | 2020-03-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811013376.0A Pending CN110873082A (en) | 2018-08-31 | 2018-08-31 | Reciprocating supercharger capable of stably reversing |
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| Country | Link |
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| CN (1) | CN110873082A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114412848A (en) * | 2021-12-20 | 2022-04-29 | 郑州磨料磨具磨削研究所有限公司 | Hydraulic control reciprocating supercharger with piston signaling port |
| CN114876758A (en) * | 2022-04-30 | 2022-08-09 | 青岛盘古智能制造股份有限公司 | Vacuum pump and application system and method thereof |
-
2018
- 2018-08-31 CN CN201811013376.0A patent/CN110873082A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114412848A (en) * | 2021-12-20 | 2022-04-29 | 郑州磨料磨具磨削研究所有限公司 | Hydraulic control reciprocating supercharger with piston signaling port |
| CN114412848B (en) * | 2021-12-20 | 2024-02-23 | 精工锐意科技(河南)有限公司 | Hydraulic control reciprocating supercharger with piston signaling port |
| CN114876758A (en) * | 2022-04-30 | 2022-08-09 | 青岛盘古智能制造股份有限公司 | Vacuum pump and application system and method thereof |
| CN114876758B (en) * | 2022-04-30 | 2024-02-13 | 青岛盘古智能制造股份有限公司 | Vacuum pump and application system and method thereof |
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