CN221222383U - Fluid infusion device of hydraulic system - Google Patents
Fluid infusion device of hydraulic system Download PDFInfo
- Publication number
- CN221222383U CN221222383U CN202322838398.3U CN202322838398U CN221222383U CN 221222383 U CN221222383 U CN 221222383U CN 202322838398 U CN202322838398 U CN 202322838398U CN 221222383 U CN221222383 U CN 221222383U
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- liquid
- cylinder
- fluid
- supplementing
- liquid storage
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- 239000012530 fluid Substances 0.000 title claims abstract description 61
- 238000001802 infusion Methods 0.000 title claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 141
- 230000001502 supplementing effect Effects 0.000 claims abstract description 58
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 238000002637 fluid replacement therapy Methods 0.000 claims description 20
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract 1
- 235000017491 Bambusa tulda Nutrition 0.000 abstract 1
- 241001330002 Bambuseae Species 0.000 abstract 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract 1
- 239000011425 bamboo Substances 0.000 abstract 1
- 239000010720 hydraulic oil Substances 0.000 description 20
- 239000003921 oil Substances 0.000 description 18
- 238000007789 sealing Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses a fluid infusion device of a hydraulic system, which comprises: fluid infusion case, fluid infusion are with cylinder and have a liquid section of thick bamboo that deposits of end wall, and fluid infusion is with cylinder includes: a cylinder body, a front cover, a rear cover and a piston rod arranged in the cylinder body; the liquid storage cylinder is reversely buckled on the front cover, a suction inlet penetrating through the side wall of the liquid storage cylinder is formed in the side wall of the liquid storage cylinder, a pressure building cavity and a liquid supplementing port are formed in the end wall of the liquid storage cylinder, the pressure building cavity is matched with a piston rod of a liquid supplementing cylinder, a liquid supplementing pipeline is arranged on the liquid supplementing port, and a liquid supplementing one-way valve is arranged on the liquid supplementing pipeline; the liquid supplementing box is provided with a liquid outlet, and the liquid outlet is connected with a suction inlet on the side wall of the liquid storage barrel through a liquid outlet pipeline and a liquid outlet one-way valve arranged on the liquid outlet pipeline. The fluid supplementing device provided by the utility model can be applied to various oil pressure systems needing fluid supplementing, such as an additional oil cylinder.
Description
Technical Field
The utility model relates to a hydraulic system such as a booster cylinder, in particular to a fluid supplementing device of the hydraulic system.
Background
It is known to those skilled in the art that injection molding machines maintain pressure in the injection mold during the mold closing process by advancing the piston rod which increases oil pressure. At present, the traditional booster cylinder is not provided with a liquid supplementing device, in the actual use process, hydraulic oil only flows back and forth in the rodless cavity 12 of the booster cylinder and the rodless cavity 14 of the liquid filling box (see fig. 1), a hydraulic system leaks after a long time, the hydraulic oil is reduced, and the boosting effect of the booster cylinder is affected; in addition, because the hydraulic oil can generate bubbles in the fast flowing process, the hydraulic oil is deteriorated and not clean, and the service life of the booster cylinder is influenced.
Disclosure of utility model
The technical problems to be solved by the utility model are as follows: provided is a fluid replacement device for a hydraulic system, which is capable of replenishing a hydraulic system with fluid.
In order to solve the technical problems, the utility model adopts the following technical scheme: a fluid replacement device for a hydraulic system, comprising: the liquid replenishing box, the cylinder for liquid replenishing and the liquid storage barrel with the end wall, the concrete structure of the cylinder for liquid replenishing includes: the device comprises a cylinder body, a rear cover arranged at the rear end of the cylinder body, a front cover arranged at the front end of the cylinder body and a piston rod arranged in the cylinder body; the liquid storage cylinder is reversely buckled on the front cover, so that a liquid storage cavity is formed between the liquid storage cylinder and the front cover, a suction inlet penetrating through the side wall of the liquid storage cylinder is formed in the side wall of the liquid storage cylinder, a pressure building cavity and a liquid supplementing port are formed in the end wall of the liquid storage cylinder from inside to outside, the pressure building cavity and the liquid supplementing port penetrate through the end wall of the liquid storage cylinder, the pressure building cavity is matched with a piston rod of the liquid supplementing cylinder, an annular chamfer is formed at the end part of the piston rod of the liquid supplementing cylinder, a guide surface is formed, a liquid supplementing pipeline is arranged on the liquid supplementing port, and a liquid supplementing one-way valve which only does not enter is arranged on the liquid supplementing pipeline; the liquid supplementing box is provided with a liquid outlet, and the liquid outlet is connected with a suction inlet on the side wall of the liquid storage barrel through a liquid outlet pipeline and a liquid outlet one-way valve which is arranged on the liquid outlet pipeline and is not fed in only.
In one preferable mode, in the fluid-filling device of a hydraulic system, a piston rod of the fluid-filling cylinder is provided with an annular seal groove at an end portion thereof, and an annular seal ring for pressure building is provided in the annular seal groove.
In one preferred embodiment, in the fluid-filling device of a hydraulic system, the pressure-building chamber is provided with a conical guide section with a larger outside and a smaller inside at the inner end port.
The utility model aims to solve the further technical problems that: a fluid replacement device of a hydraulic system capable of purifying hydraulic oil is provided.
In order to solve the further technical problems, the utility model adopts the following technical scheme: the liquid supplementing box is internally provided with a filter, and a liquid outlet of the liquid supplementing box is connected with an outlet of the filter.
In one preferable scheme, in the fluid infusion device of the hydraulic system, the fluid infusion tank is further provided with a fluid return port, a fluid return pipeline is arranged on the fluid return port, and an overflow valve is arranged in the fluid return pipeline.
In one preferable scheme, in the fluid infusion device of the hydraulic system, the fluid infusion cylinder is provided with a through air inlet and outlet hole communicated with the inner cavity of the fluid infusion cylinder on the rear cover, and the front cover of the fluid infusion cylinder is provided with an L-shaped air inlet and outlet hole communicated with the inner cavity of the fluid infusion cylinder.
The beneficial effects of the utility model are as follows:
1. According to the utility model, the liquid supplementing tank, the liquid supplementing cylinder and the liquid storage cylinder with the end wall are arranged, the liquid outlet one-way valve which is not fed in is arranged on the liquid outlet pipeline between the liquid supplementing tank and the liquid storage cavity, and the liquid supplementing one-way valve which is not fed in is arranged on the liquid supplementing pipeline of the liquid supplementing port of the liquid storage cylinder, so that hydraulic oil flows unidirectionally between the liquid supplementing tank and the liquid storage cavity and between the liquid storage cavity and the oil pressure system such as the pressurized oil cylinder needing liquid supplementing, and the liquid supplementing of the oil pressure system such as the pressurized oil cylinder is conveniently realized.
2. According to the utility model, the filter is arranged in the fluid infusion tank, the liquid outlet of the fluid infusion tank is connected with the outlet of the filter, the fluid return port is arranged on the fluid infusion tank, the fluid return pipeline is arranged on the fluid return port, and the overflow valve is arranged in the fluid return pipeline, so that hydraulic oil in the oil pressure system such as the booster cylinder flows back into the fluid infusion tank during fluid infusion, is filtered by the filter and becomes clean hydraulic oil, and enters the oil pressure system such as the booster cylinder during fluid infusion, in other words, the clean hydraulic oil is fed into the oil pressure system such as the booster cylinder, thereby prolonging the service life of the oil pressure system such as the booster cylinder; meanwhile, the overflow valve is arranged, so that the control of fluid infusion is simpler, and redundant hydraulic oil can enter the fluid infusion tank through the overflow valve after the fluid infusion is completed.
3. The end part of the piston rod of the fluid infusion cylinder is provided with the annular sealing groove, and the annular sealing groove is internally provided with the annular sealing ring for pressure building, so that the sealing of the fluid infusion port is ensured, and the pressure of hydraulic oil at the fluid infusion port is ensured.
4. The conical guide section with the large outside and the small inside is arranged at the inner end port of the pressure build-up cavity, so that the piston rod of the fluid infusion cylinder moves more smoothly.
5. Because the diameter of the liquid storage cylinder is larger than that of the pressure build cavity, more hydraulic oil is ensured to enter the liquid supplementing pipeline each time, and the liquid supplementing efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of a fluid infusion device of a hydraulic system according to the present utility model.
The reference numerals in fig. 1 are respectively: 11. a pressurizing piston rod, 12, a pressurizing cylinder rodless cavity, 13, a filling tank pressure oil inlet, 14, a filling tank rodless cavity, 15, a filling tank piston rod, 16, an oil discharge port, 2, a liquid return pipeline, 21, an overflow valve, 3, a liquid supplementing tank, 31, a liquid return port, 32, a filter, 4, a liquid supplementing cylinder, 40, a cylinder body, 41, a front cover, 411, an L-shaped air inlet and outlet hole, 42, a rear cover, 421, a through air inlet and outlet hole, 43, a piston rod, 45, a liquid storage cylinder, 450, a liquid storage cavity, 451, a suction inlet, 452, a pressure building cavity, 453, a liquid supplementing port, 5, a liquid outlet pipeline, 51, a liquid outlet one-way valve, 6, a liquid supplementing pipeline, 61 and a liquid supplementing one-way valve,
Detailed Description
The following describes in detail a specific embodiment of a fluid replacement device of a hydraulic system according to the present utility model, taking a booster cylinder as an example, with reference to the accompanying drawings.
As shown in fig. 1, a fluid replacement device of a hydraulic system according to the present utility model includes: a fluid replacement cylinder 4, a fluid replacement tank 3, and a fluid storage cylinder 45 with an end wall, wherein the fluid replacement cylinder 4 comprises: the cylinder body 40, a rear cover 42 arranged at the rear end of the cylinder body 40, a front cover 41 arranged at the front end of the cylinder body 40, and a piston rod 43 arranged in the cylinder body 40, wherein an annular sealing groove is formed at the end part of the piston rod 43, and an annular sealing ring for pressure building is arranged in the annular sealing groove (which belongs to the conventional technology in the field and is not described herein); the liquid storage cylinder 45 is reversely buckled on the front cover 41, so that a sealed liquid storage cavity 450 is formed between the liquid storage cylinder 45 and the front cover 41, a suction inlet 451 penetrating through the side wall of the liquid storage cylinder 45 is formed in the side wall of the liquid storage cylinder 45, a pressure building cavity 452 and a liquid supplementing port 453 are formed in the end wall of the liquid storage cylinder 45 from inside to outside, the pressure building cavity 452 and the liquid supplementing port 453 penetrate through the end wall of the liquid storage cylinder 45, the pressure building cavity 452 is matched with the piston rod 43 of the liquid supplementing cylinder 4, and a conical guide section with the outer size and the inner size is formed at the port of the inner end (the left end in fig. 1) of the pressure building cavity 452 (which belongs to a conventional technology in the field and is not further described herein); the end of the piston rod 43 of the fluid-replenishing cylinder 4 is provided with an annular chamfer to form a guide surface (which belongs to the conventional technology in the field and is not described here), the fluid-replenishing port 453 is provided with a fluid-replenishing pipeline 6, and the fluid-replenishing pipeline 6 is provided with a fluid-replenishing one-way valve 61 which only cannot enter; the liquid supplementing box 3 is provided with a liquid outlet, the liquid supplementing box 3 is internally provided with a filter 32, the liquid outlet of the filter 32 is arranged in the liquid outlet of the liquid supplementing box 3, and the filter 32 is connected with a suction inlet 451 on the side wall of the liquid storage barrel 45 through a liquid outlet pipeline 5 and a liquid outlet one-way valve 51 which is arranged on the liquid outlet pipeline 5 and is not fed in only. In this embodiment, the rear cover 42 of the fluid-filling cylinder 4 is provided with a through air inlet and outlet 421 which is communicated with the inner cavity of the rear cover, and the front cover 41 of the fluid-filling cylinder 4 is provided with an L-shaped air inlet and outlet 411 which is communicated with the inner cavity of the front cover 41.
In practical application, the top wall of the fluid infusion tank 3 is provided with a fluid return port 31, the fluid return port 31 is provided with a fluid return pipeline 2, and the fluid return pipeline 2 is provided with an overflow valve 21; the liquid outlet check valve 51 is directly arranged in the suction inlet 451 of the liquid storage barrel 45, and the liquid supplementing check valve 61 is directly arranged in the liquid supplementing port 453 of the liquid storage barrel 45.
The main functions of the fluid infusion device of the hydraulic system are as follows: the liquid filling box is periodically supplemented with hydraulic oil, air in the liquid filling box is discharged, and the hydraulic oil is circularly filtered.
The working principle of the utility model is as follows: after the pressurizing piston rod 11 is operated for a certain number of times, the piston rod 43 in the fluid-replenishing cylinder 4 is pushed forward, and the hydraulic oil in the fluid-storage chamber 450 can only flow out to the pressure oil outlet, namely the fluid-replenishing port 453, under the action of the fluid-outlet check valve 51. Pressure oil flows through the fluid supplementing one-way valve 61 from the pressure oil outlet to enter the pressure oil inlet 13 of the fluid charging box, and enters the rodless cavity 14 of the fluid charging box, so that fluid supplementing is completed. The overflow valve 21 sets a proper opening pressure to enable a certain oil return resistance to exist at the oil drain port 16 of the liquid filling tank, so that hydraulic oil in the liquid filling tank is ensured not to be drained under the condition that the liquid filling tank is not full, when the hydraulic oil in the liquid filling tank is full, the pressurizing piston rod 11 can generate a certain pressure in the process of moving upwards, when the pressure is larger than the pressure set by the overflow valve 21, the overflow valve 21 is opened, hydraulic oil is drained from the oil drain port on the piston rod 15 of the liquid filling tank, at the moment, air at the upper end of the liquid filling tank is drained together, the drained hydraulic oil flows into the liquid filling tank 3, and when the piston rod 43 of the liquid filling cylinder 4 is retracted, the hydraulic oil can only enter the liquid storage cavity 450 for next use from the liquid filling tank 3 through the filter 32, the liquid outlet one-way valve 51 and the suction port 451.
The foregoing description is only illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, but rather the equivalent variations and modifications in shape, construction, characteristics and spirit according to the scope of the claims should be construed to be included in the scope of the claims.
Claims (6)
1. A fluid replacement device for a hydraulic system, comprising: fluid infusion case, its characterized in that: the fluid infusion device of the hydraulic system further comprises: the cylinder for fluid replacement and the fluid storage cylinder with an end wall comprise the following specific structures: the device comprises a cylinder body, a rear cover arranged at the rear end of the cylinder body, a front cover arranged at the front end of the cylinder body and a piston rod arranged in the cylinder body; the liquid storage cylinder is reversely buckled on the front cover, so that a liquid storage cavity is formed between the liquid storage cylinder and the front cover, a suction inlet penetrating through the side wall of the liquid storage cylinder is formed in the side wall of the liquid storage cylinder, a pressure building cavity and a liquid supplementing port are formed in the end wall of the liquid storage cylinder from inside to outside, the pressure building cavity and the liquid supplementing port penetrate through the end wall of the liquid storage cylinder, the pressure building cavity is matched with a piston rod of the liquid supplementing cylinder, an annular chamfer is formed in the end part of the piston rod of the liquid supplementing cylinder, a guide surface is formed in the end part of the piston rod of the liquid supplementing cylinder, a liquid supplementing pipeline is arranged on the liquid supplementing port, and a liquid supplementing one-way valve which only does not enter is arranged on the liquid supplementing pipeline; the liquid supplementing box is provided with a liquid outlet, and the liquid outlet is connected with a suction inlet on the side wall of the liquid storage barrel through a liquid outlet pipeline and a liquid outlet one-way valve which is arranged on the liquid outlet pipeline and is not fed in only.
2. The fluid replacement device of a hydraulic system according to claim 1, wherein the piston rod of the fluid replacement cylinder is provided with an annular seal groove at an end portion thereof, and an annular seal ring for pressure building is provided in the annular seal groove.
3. The fluid replacement device of a hydraulic system according to claim 1, wherein the pressure build-up chamber is provided with a tapered guide section having a larger outside and a smaller inside at an inner end port thereof.
4. The fluid infusion device of a hydraulic system according to claim 1, wherein a filter is arranged in the fluid infusion tank, and a fluid outlet of the fluid infusion tank is connected to an outlet of the filter.
5. The fluid replacement device of claim 4, wherein the fluid replacement tank is further provided with a fluid return port, the fluid return port is provided with a fluid return pipeline, and the fluid return pipeline is provided with an overflow valve.
6. The fluid replacement device of any one of claims 1 to 5, wherein the fluid replacement cylinder is provided with a through air inlet and outlet hole communicated with the inner cavity of the fluid replacement cylinder on the rear cover, and the fluid replacement cylinder is provided with an L-shaped air inlet and outlet hole communicated with the inner cavity of the fluid replacement cylinder on the front cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322838398.3U CN221222383U (en) | 2023-10-23 | 2023-10-23 | Fluid infusion device of hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322838398.3U CN221222383U (en) | 2023-10-23 | 2023-10-23 | Fluid infusion device of hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221222383U true CN221222383U (en) | 2024-06-25 |
Family
ID=91575863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322838398.3U Active CN221222383U (en) | 2023-10-23 | 2023-10-23 | Fluid infusion device of hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221222383U (en) |
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2023
- 2023-10-23 CN CN202322838398.3U patent/CN221222383U/en active Active
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| GR01 | Patent grant |