CN210660845U - Hydraulic cylinder oil leakage recovery device for hydraulic system of roller press - Google Patents
Hydraulic cylinder oil leakage recovery device for hydraulic system of roller press Download PDFInfo
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- CN210660845U CN210660845U CN201921254633.XU CN201921254633U CN210660845U CN 210660845 U CN210660845 U CN 210660845U CN 201921254633 U CN201921254633 U CN 201921254633U CN 210660845 U CN210660845 U CN 210660845U
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Abstract
The utility model belongs to the technical field of the hydraulic system transformation of roll squeezer, a pneumatic cylinder oil leak recovery unit for roll squeezer hydraulic system is disclosed, roll squeezer hydraulic system is equipped with 1 at least pneumatic cylinder, and pneumatic cylinder oil leak recovery unit includes the oil return pipeline that just is no less than 1 the same with pneumatic cylinder quantity, every oil return pipeline and every pneumatic cylinder one-to-one. The inlet end of each oil return pipeline is connected with a rod cavity of the hydraulic cylinder, the outlet end of each oil return pipeline is connected with the upper inlet of the oil collecting tank, and the bottom outlet of the oil collecting tank is communicated with the hydraulic station. The utility model discloses a pneumatic cylinder oil leak recovery unit can have the hydraulic oil discharge of pole intracavity and collect seepage to pneumatic cylinder, can avoid seepage to pneumatic cylinder to have the hydraulic oil of pole intracavity to spill the pollution that causes the environment through cylinder head department, and can avoid the pneumatic cylinder to cause the backpressure state because of the seepage of hydraulic oil.
Description
Technical Field
The utility model belongs to the technical field of the hydraulic system transformation of roll squeezer, concretely relates to a pneumatic cylinder oil leak recovery unit for roll squeezer hydraulic system.
Background
The hydraulic cylinder of a hydraulic system of the roller press in the cement production process is mostly a single-acting cylinder, and the piston inside the cylinder body is abraded after the single-acting cylinder runs for a long time, so that hydraulic oil leaks to a rod cavity of the hydraulic cylinder from a rodless cavity of the hydraulic cylinder. And the cylinder head of the rod cavity of the hydraulic cylinder is in a V-shaped combined sealing form, after long-time operation, when too much hydraulic oil leaks into the rod cavity, oil leakage at the sealing part of the cylinder head can be caused, so that the field environmental sanitation is influenced, and the working efficiency of a hydraulic system is influenced because the hydraulic cylinder forms a back pressure state in the working process.
In view of the above, there is a need to improve the hydraulic cylinder of the hydraulic system of the roll squeezer in the prior art to solve the problem of oil leakage of the hydraulic cylinder.
SUMMERY OF THE UTILITY MODEL
In the cement production process, the roller press is also called an extrusion mill and a rolling mill, is novel cement energy-saving grinding equipment, and has the functions of replacing a ball mill pre-grinding system with high energy consumption and low efficiency and reducing steel consumption and noise. The roll squeezer needs roll squeezer hydraulic system to make hydraulic press roller bearing frame subassembly reciprocating motion about the course of the work, the utility model discloses the hydraulic system of well roll squeezer adopts a plurality of single-action pneumatic cylinders, after the oil leak takes place for the inside piston wearing and tearing of pneumatic cylinder, in order to avoid hydraulic oil to influence sanitation through cylinder head department leakage, and for avoiding leading to the fact the backpressure state of pneumatic cylinder because of the too much oil that leaks out through piston department, the utility model provides a pneumatic cylinder oil leak recovery unit for roll squeezer hydraulic system.
Realize the utility model discloses the technical scheme of purpose as follows: the utility model provides a pneumatic cylinder oil leak recovery unit for roll squeezer hydraulic system, roll squeezer hydraulic system are equipped with 1 at least pneumatic cylinder, and pneumatic cylinder oil leak recovery unit includes the oil return pipeline the same with pneumatic cylinder quantity and be no less than 1, every oil return pipeline and every pneumatic cylinder one-to-one. The inlet end of each oil return pipeline is connected with a rod cavity of the hydraulic cylinder, the outlet end of each oil return pipeline is connected with the upper inlet of the oil collecting tank, and the bottom outlet of the oil collecting tank is communicated with the hydraulic station.
Through set up pneumatic cylinder oil leak recovery unit between pneumatic cylinder and hydraulic system's hydraulic pressure station, to leak into the pneumatic cylinder and have the hydraulic oil discharge of pole intracavity and collect, effectual reduction pneumatic cylinder has the oil mass of the hydraulic oil of pole intracavity, avoid hydraulic oil to leak the polluted environment through the sealed department of cylinder end, and have the pole intracavity with hydraulic oil to discharge and collect the recycle from the pneumatic cylinder, the cost of hydraulic oil has been reduced, and can avoid the pneumatic cylinder to have the pole intracavity long-pending oil too much to cause the pneumatic cylinder backpressure state.
In order to convey the hydraulic oil collected in the oil collecting tank to the hydraulic station and recycle the hydraulic oil, a hydraulic pump is arranged on a connecting pipeline between the oil collecting tank and the hydraulic station. When the hydraulic oil in the oil collecting tank reaches a certain amount or the hydraulic oil in the hydraulic station is slightly small, the hydraulic oil in the oil collecting tank is discharged and conveyed into the hydraulic station through the hydraulic pump, so that the oil inlet amount of the rodless cavity of the hydraulic cylinder is ensured.
As right the utility model discloses a further improvement, for avoiding containing impurity in the oil collecting tank in the hydraulic oil, get into hydraulic system and with hydraulic system's pipe blockage, influence the normal transport of hydraulic oil, still be equipped with the filter on the connecting tube at oil collecting tank and hydraulic pressure station.
Preferably, when the hydraulic oil in the rodless cavity of the hydraulic cylinder is discharged, the hydraulic rod of the hydraulic cylinder moves towards the inner part of the rod cavity of the hydraulic cylinder, so that a small negative pressure is generated in the oil collecting tank, the hydraulic oil in the hydraulic station flows back into the oil collecting tank, and a check valve is further arranged on a connecting pipeline between the oil collecting tank and the hydraulic station for avoiding the backflow of the hydraulic oil in the hydraulic station.
Preferably, a stop valve is arranged on a connecting pipeline between the oil collecting tank and the hydraulic station so as to be convenient for disassembling and cleaning the hydraulic pump, the filter and the like.
As right the utility model discloses a further improvement, in being convenient for the automatic hydraulic pressure station of going into of the hydraulic oil of collecting in the oil collecting tank, improve the operation automation, reduce operation personnel's working strength. A liquid level sensor is arranged in the oil collecting tank, and a liquid level control electromagnetic valve is arranged on a connecting pipeline between the oil collecting tank and the hydraulic station.
The liquid level sensor is electrically connected with a controller positioned outside the oil collecting tank, the controller is also electrically connected with the liquid level control electromagnetic valve and the hydraulic pump, and the controller is used for controlling the opening and closing of the liquid level control electromagnetic valve and the hydraulic pump. The controller is provided with control information, when the liquid level sensor measures the liquid level information in the hydraulic oil in the oil collecting tank, and when the set standard is reached, the controller controls the liquid level control electromagnetic valve to be automatically communicated with the hydraulic pump, so that the hydraulic oil in the oil collecting tank is conveyed to the hydraulic station.
As right the utility model discloses a further improvement, the pneumatic cylinder is the single-pole pneumatic cylinder, and the pneumatic cylinder of single-pole pneumatic cylinder has the chamber wall upper end in pole chamber to be equipped with the upper end through-hole, and the chamber wall lower extreme is equipped with the lower extreme through-hole, and the upper end through-hole is used for the exhaust, lower extreme through-hole and the entrance point intercommunication of returning oil pipe way.
Compared with the prior art, the beneficial effects of the utility model are that: the oil return pipeline and the oil collection tank are additionally arranged between the rod cavity of the hydraulic cylinder and the hydraulic station, so that hydraulic oil leaked to the rod cavity of the hydraulic cylinder is discharged and collected into the oil collection tank, the problem of oil leakage of the cylinder head of the hydraulic cylinder is avoided, the backpressure state of the hydraulic cylinder caused by excessive oil accumulation of the rod cavity of the hydraulic cylinder is avoided, and the reliability of a hydraulic system and the service life of each component of the hydraulic system are improved.
Drawings
Fig. 1 is a hydraulic cylinder oil leakage recovery device of the hydraulic system of the roll squeezer;
fig. 2 is another hydraulic cylinder leaked oil recovery device of the hydraulic system of the roll squeezer of the invention;
wherein, 1, the roller bearing seat component of the roller press; 2. a hydraulic rod of the hydraulic cylinder; 3. the hydraulic cylinder is provided with a rod cavity; 4, a rodless cavity of the hydraulic cylinder; 5. a hydraulic cylinder 6 is provided with a hydraulic oil inlet; 7. a hydraulic cylinder piston; 8. an oil collecting tank; 10. a hydraulic pump; 11. filter, 12. hydraulic station; 13. the roller of the roller press is in a left-right reciprocating running state; 14. an upper end through hole; 15. a lower end through hole; 16. a liquid level sensor; 17. a controller; 18. a liquid level control solenoid valve; 19. a one-way valve; 20. and a stop valve.
Detailed Description
The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that the functions, methods, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.
In the description of the present embodiments, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; 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 creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
The utility model discloses an among the roller press hydraulic system, pneumatic cylinder 5 is used for the drive to make roller press roller bearing frame subassembly 1 reciprocating motion of roller press, and roller press roller motion is as shown in the roller press roller left and right sides reciprocating motion state 13 in attached 1 and attached 2. When the hydraulic system of the roller press works, the hydraulic station 12 supplies hydraulic oil to the hydraulic cylinder 5, the hydraulic oil enters the rodless cavity 4 of the hydraulic cylinder through the hydraulic oil inlet 6, and the hydraulic cylinder 2 of the hydraulic cylinder is driven to move towards one side close to the roller bearing seat assembly 1 of the roller press so as to drive the roller bearing seat assembly 1 of the roller press to reciprocate.
The hydraulic cylinder oil leakage recovery device is positioned between the hydraulic cylinder 5 and the hydraulic station 12 and is used for discharging and collecting hydraulic oil which leaks into the hydraulic cylinder rod cavity 3 through the hydraulic cylinder rodless cavity 4 so as to avoid the hydraulic oil which leaks into the hydraulic cylinder rod cavity 3 from being exposed through the cylinder head sealing part and avoid the generation of back pressure of the hydraulic cylinder 5.
The utility model discloses in, pneumatic cylinder 5 is the single pole pneumatic cylinder, and the pneumatic cylinder of single pole pneumatic cylinder has the chamber wall of pole chamber 3 about both ends be equipped with 1 through-hole respectively, be upper end through-hole 14 and lower extreme through-hole 15 respectively, wherein, upper end through-hole 14 is used for the exhaust, and lower extreme through-hole 15 is used for having pole chamber 3 internal discharge with hydraulic oil from the pneumatic cylinder with the entrance connection of returning oil pipe way.
Example 1:
referring to fig. 1, a hydraulic cylinder leaked oil recovery apparatus of a hydraulic system of a roller press is provided in this embodiment, the hydraulic system of the roller press is provided with at least 1 hydraulic cylinder 5 (in the embodiment, there are 2 hydraulic cylinders 5), the hydraulic cylinder leaked oil recovery apparatus includes at least 1 oil return pipeline (in the embodiment, there are 2 oil return pipelines) having the same number as that of the hydraulic cylinders 5, and each oil return pipeline corresponds to each hydraulic cylinder 5 one to one.
The inlet end of each oil return pipeline is connected with a lower end through hole 15 on the rod cavity 3 of the hydraulic cylinder, the outlet end of each oil return pipeline is connected with the upper inlet of the oil collecting tank 8, and the bottom outlet of the oil collecting tank 8 is communicated with the hydraulic station 12.
In order to convey the hydraulic oil collected in the oil collecting tank 8 to the hydraulic station 12 and recycle the hydraulic oil, a hydraulic pump 10 is provided on a connecting pipeline between the oil collecting tank 8 and the hydraulic station 12. When the hydraulic oil in the oil collecting tank 8 reaches a certain amount or the hydraulic oil in the hydraulic station 12 is small, the hydraulic oil in the oil collecting tank 8 is conveyed into the hydraulic station 12 through the hydraulic pump 10, so that the oil inlet amount of the rodless cavity 4 of the hydraulic cylinder is ensured.
Furthermore, in order to prevent impurities of the hydraulic oil collected in the oil collecting tank 8 from entering the hydraulic system to block the pipeline of the hydraulic system and influence the normal delivery of the hydraulic oil, a filter 11 is further arranged on the connecting pipeline between the oil collecting tank 8 and the hydraulic station 12.
When the roller press works, along with the extension of the working time of the hydraulic cylinder 5, the hydraulic cylinder piston 7 of the hydraulic cylinder 5 is abraded, hydraulic oil in the rodless cavity 4 of the hydraulic cylinder enters the rod cavity 3 of the hydraulic cylinder through an abrasion gap, and the hydraulic oil is discharged into the oil collecting tank 8 through the lower end through hole 15, so that the discharge of the hydraulic oil in the rod cavity 3 of the hydraulic cylinder is realized. When the hydraulic oil in the oil collection tank 8 reaches a certain amount or the hydraulic oil in the hydraulic station 12 is insufficient in amount, the hydraulic oil is discharged from the oil collection tank 8 to the hydraulic station 12 by the hydraulic pump 10.
Through set up pneumatic cylinder oil leak recovery unit between pneumatic cylinder and hydraulic system's hydraulic pressure station, to leak into the pneumatic cylinder and have the hydraulic oil discharge of pole chamber 3 and collect, the effectual pneumatic cylinder that has reduced has the hydraulic oil of pole chamber 3, avoid hydraulic oil to expose the polluted environment through the sealed department of cylinder end, and have the pole intracavity discharge and recycle with hydraulic oil from the pneumatic cylinder, the cost of hydraulic oil has been reduced, and can avoid the pneumatic cylinder to have the too much pneumatic cylinder 5 backpressure states that causes of pole chamber 3 interior long-pending oil.
Example 2:
as shown in fig. 2, this embodiment is a further improvement on embodiment 1, and the difference between this embodiment and embodiment 1 is that a liquid level sensor 16 and a controller 17 are further provided on the oil collection tank 8, and a liquid level control solenoid valve 18 is further provided in a connecting pipe between the oil collection tank 8 and the hydraulic station 12.
The hydraulic oil collected in the oil collecting tank 8 is automatically discharged into the hydraulic station 12 conveniently, so that the operation automation is improved, and the overhaul frequency and the overhaul strength of operators are reduced. A liquid level sensor 16 is arranged in the oil collecting tank 8, in the embodiment, a 24V-DCCBM-2100/CBM-2700 input type static pressure liquid level meter is selected as the liquid level sensor 16, and the liquid level sensor 16 is positioned at 1/5-3/5 of the height of the oil collecting tank 8. A liquid level control electromagnetic valve 18 is arranged on a connecting pipeline between the oil collecting tank 8 and the hydraulic station 12, and the model of the liquid level control electromagnetic valve 18 is EVRA20 in the embodiment.
The liquid level sensor 16 is electrically connected with a controller 17 located outside the oil collecting tank 8, the controller 17 is further electrically connected with a liquid level control solenoid valve 18 and the hydraulic pump 10, and the controller 17 is used for controlling the opening and closing of the liquid level control solenoid valve 18 and the hydraulic pump 10. The controller 17 is provided with control information, when the liquid level sensor 16 measures the liquid level information in the hydraulic oil in the oil collection tank 8, and when the set standard is reached, the controller 17 controls the liquid level control solenoid valve 18 and the hydraulic pump 10 to automatically communicate, and the hydraulic oil in the oil collection tank 8 is delivered to the hydraulic station 12.
As a further improvement to this embodiment, when the hydraulic oil in the rodless cavity 4 of the hydraulic cylinder is discharged, the hydraulic rod 2 of the hydraulic cylinder moves towards the inside of the rod cavity 3 of the hydraulic cylinder, so that a small negative pressure is generated in the oil collecting tank, which may cause the hydraulic oil in the hydraulic station 12 to flow back into the oil collecting tank 8, and in order to avoid the backflow of the hydraulic oil in the hydraulic station 12, a check valve 19 is further disposed on a connecting pipeline between the oil collecting tank 8 and the hydraulic station 12, and in this embodiment, the check valve 19 is a straight-through check valve.
As a further improvement of this embodiment, in order to facilitate the disassembly and cleaning of the hydraulic pump 10, the filter 11, and the like, a stop valve 20 is further provided on the connecting pipeline between the oil collecting tank 8 and the hydraulic station 12, and in this embodiment, the stop valve 20 is a straight-through type stop valve, and the model of the stop valve is SVA 20.
When the roller press works, the controller 17 sets that when the height of the hydraulic oil in the oil collecting tank 8 is more than or equal to 3/5 of the height of the oil collecting tank 8, the controller 17 enables the liquid level control electromagnetic valve 18 and the hydraulic pump 10 to be communicated, and the hydraulic oil is discharged out of the hydraulic station 12.
The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. The utility model provides a pneumatic cylinder oil leak recovery unit for roller press hydraulic system, roller press hydraulic system are equipped with 1 at least pneumatic cylinder, its characterized in that: the hydraulic cylinder oil leakage recovery device comprises oil return pipelines which are the same as the hydraulic cylinders in number and are not less than 1, and each oil return pipeline corresponds to each hydraulic cylinder one by one; the inlet end of the oil return pipeline is connected with a rod cavity of the hydraulic cylinder, the outlet end of each oil return pipeline is connected with the upper inlet of the oil collecting tank, and the bottom outlet of the oil collecting tank is communicated with the hydraulic station.
2. The device for recovering leaked oil of the hydraulic cylinder of the hydraulic system of the roller press as claimed in claim 1, wherein: and a hydraulic pump is arranged on a connecting pipeline between the oil collecting tank and the hydraulic station.
3. The device for recovering leaked oil of the hydraulic cylinder of the hydraulic system of the roller press as claimed in claim 2, wherein: and a filter is also arranged on a connecting pipeline between the oil collecting tank and the hydraulic station.
4. The device for recovering leaked oil of the hydraulic cylinder of the hydraulic system of the roller press as claimed in claim 3, wherein: and a one-way valve is also arranged on a connecting pipeline between the oil collecting tank and the hydraulic station.
5. The device for recovering leaked oil of the hydraulic cylinder of the hydraulic system of the roller press as claimed in claim 3, wherein: and a stop valve is also arranged on a connecting pipeline between the oil collecting tank and the hydraulic station.
6. The device for recovering leaked oil of the hydraulic cylinder of the hydraulic system of the roller press as claimed in claim 2, wherein: a liquid level sensor is arranged in the oil collecting tank, and a liquid level control electromagnetic valve is arranged on a connecting pipeline between the oil collecting tank and the hydraulic station;
the liquid level sensor is electrically connected with a controller positioned outside the oil collecting tank, the controller is also electrically connected with the liquid level control electromagnetic valve and the hydraulic pump, and the controller is used for controlling the liquid level control electromagnetic valve and the hydraulic pump to be opened and closed.
7. The device for recovering leaked oil of the hydraulic cylinder of the hydraulic system of the roller press according to any one of claims 1 to 6, is characterized in that: the hydraulic cylinder is a single-rod hydraulic cylinder, an upper end through hole is formed in the upper end of the cavity wall of the rod cavity of the hydraulic cylinder of the single-rod hydraulic cylinder, a lower end through hole is formed in the lower end of the cavity wall, the upper end through hole is used for exhausting air, and the lower end through hole is communicated with the inlet end of the oil return pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921254633.XU CN210660845U (en) | 2019-08-05 | 2019-08-05 | Hydraulic cylinder oil leakage recovery device for hydraulic system of roller press |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921254633.XU CN210660845U (en) | 2019-08-05 | 2019-08-05 | Hydraulic cylinder oil leakage recovery device for hydraulic system of roller press |
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| CN210660845U true CN210660845U (en) | 2020-06-02 |
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| CN201921254633.XU Active CN210660845U (en) | 2019-08-05 | 2019-08-05 | Hydraulic cylinder oil leakage recovery device for hydraulic system of roller press |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115306793A (en) * | 2022-07-08 | 2022-11-08 | 湖南普拓智能装备有限公司 | Hydraulic test equipment |
| CN116412180A (en) * | 2023-06-08 | 2023-07-11 | 多门朗工程技术(上海)有限公司 | Oil-saving hydraulic device |
-
2019
- 2019-08-05 CN CN201921254633.XU patent/CN210660845U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115306793A (en) * | 2022-07-08 | 2022-11-08 | 湖南普拓智能装备有限公司 | Hydraulic test equipment |
| CN116412180A (en) * | 2023-06-08 | 2023-07-11 | 多门朗工程技术(上海)有限公司 | Oil-saving hydraulic device |
| CN116412180B (en) * | 2023-06-08 | 2023-08-29 | 多门朗工程技术(上海)有限公司 | Oil-saving hydraulic device |
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