CN215409541U - Pipeline hydraulic oil flushing and cooling system - Google Patents
Pipeline hydraulic oil flushing and cooling system Download PDFInfo
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- CN215409541U CN215409541U CN202121506567.8U CN202121506567U CN215409541U CN 215409541 U CN215409541 U CN 215409541U CN 202121506567 U CN202121506567 U CN 202121506567U CN 215409541 U CN215409541 U CN 215409541U
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Abstract
The utility model provides a pipeline hydraulic oil flushing and cooling system, which comprises a hydraulic oil tank, a main valve, an oil return pipe connected with the main valve and a hydraulic front-end operation part connected with the main valve, wherein the oil return pipe is connected with the hydraulic oil tank; the cooling oil pipe is provided with a pump body, the main valve adopts a middle closed core type, and the main valve can be J-shaped. The utility model realizes the continuous cooling of the pipeline in the hydraulic system and meets the working requirement in the high-temperature and high-radiation environment.
Description
Technical Field
The utility model relates to a hydraulic system, in particular to a pipeline hydraulic oil flushing and cooling system.
Background
In the construction machinery industry, whether excavators or material handling machines, such as steel grab machines or port machines, are operated in an environment with an ambient temperature below 40 ℃, and even in hot summer, they only operate above 40 ℃ for a short time. The circulation of hydraulic oil of the equipment is divided into two types, wherein the first type is that the hydraulic oil circulates among a main pump, a main valve, a hydraulic motor, a radiator and an oil tank, and hot oil is cooled when flowing through the radiator; second, hydraulic oil is circulated between the main pump, main valve, hydraulic cylinder, radiator and oil tank, and hot oil is cooled as it flows through the radiator. In the two circulation modes, when the front end hydraulic motor or the hydraulic oil cylinder does not work, the hydraulic oil circulation is in a pause state, and the hydraulic oil cylinder or the hydraulic motor can only radiate heat outwards by virtue of a pipeline on the surface of the hydraulic oil cylinder or the hydraulic motor at the moment, so that the oil seal and the hose are not damaged due to overhigh oil temperature. Because the common working environment is not continuous high temperature, the integral performance of the oil cylinder and the pipeline can be ensured. However, in some special steel smelting plants, the ambient temperature is above 60 ℃ day and night, and in some extreme environments, if the steel ingot grabbed by the working machine at the front end of the bucket rod of the steel grabbing machine is above 650 ℃, higher requirements are provided for cooling hydraulic oil, the actual heat dissipation requirements cannot be met only by heat dissipation of the surfaces of a steel pipe, a hose and an oil cylinder, the temperature of the hydraulic oil in the system exceeds the maximum temperature of 100 ℃ for the use of a sealing ring and the hose, the sealing ring and the hose are damaged, and the service life of the hydraulic system of the whole machine cannot be guaranteed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a pipeline hydraulic oil flushing and cooling system to solve the problems in the background art.
The embodiment of the utility model is realized by the following technical scheme: a pipeline hydraulic oil flushing and cooling system comprises a hydraulic oil tank, a main valve, an oil return pipe connected with the main valve and a hydraulic front-end operation part connected with the main valve, wherein the oil return pipe is connected with the hydraulic oil tank, the hydraulic oil tank is provided with a hydraulic cooling system used for cooling hydraulic oil in the hydraulic oil tank, the main valve is connected with a cooling oil pipe, and the cooling oil pipe is connected with the hydraulic oil tank; the cooling oil pipe is provided with a pump body, the main valve adopts a middle closed core type, and the main valve can be J-shaped.
Furthermore, a flushing valve is arranged between the cooling oil pipe and the main valve, and the flushing valve is mounted on a wall body of the hydraulic front-end working piece close to the heat source.
Furthermore, the hydraulic front-end operation part is provided with a hydraulic lock and a throttling hydraulic lock, and the hydraulic lock and the throttling hydraulic lock are both arranged on a wall body of the hydraulic front-end operation part close to the heat source.
Further, the main valve is a load-sensitive multi-way valve.
Further, the pump body is a gear pump.
Further, cooling oil pipe disposes the overflow pipe, the overflow pipe disposes safe overflow valve, and this overflow pipe one end links to each other with hydraulic tank, and the cooling oil pipe that the other end connection is located between the pump body and the main valve.
Further, the oil return pipe is provided with an oil return filter.
The technical scheme of the embodiment of the utility model at least has the following advantages and beneficial effects:
(1) according to the utility model, the cooling oil pipe, the pump body and the main valve are arranged, and the main valve is J-shaped, so that flushing and cooling of the hydraulic pipeline are realized, the hose is prevented from being damaged due to the temperature rise of the oil steel pipe and the hose, and the pressure bearing capacity is reduced; prevent the pipe joint of the pipeline and the sealing rings of the oil cylinder and the motor from losing efficacy. And then prevented that hydraulic oil from leaking outward, aroused the hydraulic oil burning, caused the condition emergence of bigger accident. Meanwhile, the situation that the working efficiency is influenced due to the fact that the elements work powerless because the motor and the oil cylinder are excessively leaked due to overhigh local temperature of the hydraulic oil is prevented.
(2) The flushing valve, the hydraulic lock and the throttling hydraulic lock are arranged close to the heat source, so that the flushing pipeline is longer, and the flushing cooling is more sufficient.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
icon: 1-hydraulic oil tank, 2-main valve, 3-oil return pipe, 31-oil return filter, 41-motor, 42-hydraulic oil cylinder, 5-cooling oil pipe, 6-pump body, 7-flushing valve, 8-hydraulic lock, 9-throttling hydraulic lock, 10-overflow pipe and 11-safety overflow valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually placed when the product of this application is used, the description is merely for convenience and simplicity of description, and it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
Referring to fig. 1, the present embodiment provides a pipeline hydraulic oil flushing and cooling system, including a hydraulic oil tank 1, a main valve 2, an oil return pipe 3 connected to the main valve 2, and a hydraulic front-end operating element connected to the main valve 2, where the hydraulic front-end operating element is a mechanical component such as a boom or a clamp driven by hydraulic pressure, and is configured with a motor 41 or a hydraulic cylinder 42 to operate, and is configured with a hydraulic system to implement power driving, the hydraulic system includes a main oil pipe and a main pump configured in the main oil pipe, one end of the main oil pipe is connected to the hydraulic oil tank 1, and the other end is connected to the main valve 2, and the hydraulic oil in the hydraulic oil tank 1 is pumped by the main pump to provide hydraulic power for the hydraulic front-end operating element, and the hydraulic front-end operating element is controlled by controlling the main valve 2; the oil return pipe 3 is connected with a hydraulic oil tank 1, the hydraulic oil tank 1 is provided with a hydraulic cooling system for cooling hydraulic oil in the hydraulic oil tank 1, the hydraulic cooling system is common equipment in the field and can be purchased in the market, and the specific structural composition and principle are not described again; in a high-temperature working environment, a hydraulic cooling system continuously cools hydraulic oil in a hydraulic oil tank 1, when a hydraulic front-end operating part operates, a main pump pumps the hydraulic oil in the hydraulic oil tank 1 to enter a motor 41 or a hydraulic oil cylinder 42 of the hydraulic front-end operating part through a main oil pipe and a main valve 2, the hydraulic front-end operating part operates, then the hydraulic oil flows back into the hydraulic oil tank 1 from an oil return pipe 3, in order to ensure the cleanliness of the hydraulic oil and avoid impurities in the hydraulic oil from damaging equipment, and the oil return pipe 3 is provided with an oil return filter 31 for filtering the hydraulic oil; when the hydraulic front-end operation piece does not operate, the whole system only naturally radiates heat through the surface, and then in a high-temperature working environment, hoses, sealing rings and the like in the system are easily damaged.
In order to cool and radiate heat when the hydraulic front-end operation part stops working, the main valve 2 is connected with a cooling oil pipe 5, and the cooling oil pipe 5 is connected with a hydraulic oil tank 1; the cooling oil pipe 5 is provided with a pump body 6, the main valve 2 adopts a middle closed core type, and the main valve 2 can be J-shaped. The J-shaped functional structure is characterized in that: the oil inlet P and the working oil port A are closed, the other working oil port B is connected with the oil return port T, when the hydraulic front-end working piece is connected and assembled, the working oil port A and the working oil port B are connected through a pipe fitting, the cooling oil pipe 5 is communicated with the working oil port a and the working oil port B by connecting the pipe fitting, and further, the hydraulic front-end operation part is provided with a flushing valve 7 for discharging hot oil in the hydraulic front-end operation part, the flushing valve 7 is connected with the cooling oil pipe 5, when the hydraulic front-end operation part does not operate, the pump body 6 pumps hydraulic oil in the hydraulic oil tank 1 to sequentially flow through the flushing valve 7, the main valve 2, the oil return pipe 3 and the oil return filter 31 and finally flow back into the hydraulic oil tank 1, therefore, hot oil in the whole pipeline is circularly brought back to the hydraulic oil tank 1 for circular cooling, the temperature of the oil steel pipe and the hose is prevented from rising, the hose is prevented from being damaged, and the pressure-bearing capacity is reduced; and the failure of the pipe joint, the oil cylinder and the sealing ring of the motor 41 is prevented. And then prevented that hydraulic oil from leaking outward, aroused the hydraulic oil burning, caused the condition emergence of bigger accident.
Further, the flushing valve 7 is mounted on the wall of the hydraulic front-end working element close to the heat source; the hydraulic front-end operation part is provided with a hydraulic lock 8 and a throttling hydraulic lock 98, and the hydraulic lock 8 and the throttling hydraulic lock 98 are both arranged on a wall body of the hydraulic front-end operation part close to a heat source. For example, if the hydraulic front-end working part is a bucket rod, the flushing valve 7, the hydraulic lock 8 and the throttling hydraulic lock 98 are all installed at the foremost end of the bucket rod, and the flushing valve 7, the hydraulic lock 8 and the throttling hydraulic lock 98 are arranged at positions close to a heat source, so that a flushing pipeline is longer, and flushing and cooling are more sufficient; it should be noted that the flush valve 7, the hydraulic lock 8 and the throttling hydraulic lock 98 are all parts commonly used in the art, and can be obtained in the market, and the detailed structural principle is not described again.
Further, in this embodiment, the main valve 2 is a load-sensitive multi-way valve, and the function of connecting a plurality of motors 41 or hydraulic cylinders 42 in the hydraulic front-end working member is realized by configuring the load-sensitive multi-way valve. The pump body 6 is the gear pump, and this gear pump is the little discharge capacity, extracts quantitative low temperature hydraulic oil through the gear pump, washes for the pipeline and provides the power supply, and the gear pump has realized providing lower washing pressure, only overcomes along journey loss of pressure, and then reduces the loss of heat generation that washes hydraulic system self.
Further, the cooling oil pipe 5 is provided with an overflow pipe 10, the overflow pipe 10 is provided with a safety overflow valve 11, one end of the overflow pipe 10 is connected with the hydraulic oil tank 1, and the other end of the overflow pipe 10 is connected with the cooling oil pipe 5 between the pump body 6 and the main valve 2. By configuring the overflow pipe 10 and the safety overflow valve 11, the stability of the pressure in the system is ensured, and the safety and the reliability are improved.
The gear pump continuously extracts a certain amount of low-temperature hydraulic oil to enter the system from the cooling oil pipe 5, when the hydraulic front-end operation part is not operated, the low-temperature hydraulic oil sequentially flows through the flushing valve 7, the main valve 2, the oil return pipe 3 and the oil return filter 31 and finally flows back into the hydraulic oil tank 1, so that the hot oil in the whole pipeline is circularly brought back to the hydraulic oil tank 1 for circular cooling, and because all the main valves 2 do not participate in the operation and no back pressure exists in the valves, the low-temperature hydraulic oil extracted by the pump body 6 almost completely passes through the whole pipeline at the moment; when one or two of the motor 41 or the hydraulic oil cylinder 42 of the hydraulic front-end working part act, because the oil inlet pipeline of the motor 41 or the hydraulic oil cylinder 42 is high-pressure oil, low-temperature hydraulic oil pumped out by the gear pump enters the low-pressure oil return pipe 3 to flush and cool, and because the working hydraulic oil flows through the oil return pipe 3, the low-temperature back pressure exists, so that part or all of the low-temperature hydraulic oil is mixed with pipeline working hot oil.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a pipeline hydraulic oil washes cooling system, includes hydraulic tank, main valve, returns oil pipe and the hydraulic pressure front end operation spare that links to each other with the main valve connection, should return oil union coupling hydraulic tank, hydraulic tank disposes the hydraulic cooling system who is used for the cooling to hydraulic oil in the hydraulic tank, its characterized in that:
the main valve is connected with a cooling oil pipe, and the cooling oil pipe is connected with a hydraulic oil tank; the cooling oil pipe is provided with a pump body, the main valve adopts a middle closed core type, and the main valve can be J-shaped.
2. The system of claim 1,
and a flushing valve is arranged between the cooling oil pipe and the main valve and is arranged on a wall body of the hydraulic front-end operation part close to the heat source.
3. The system of claim 2,
the hydraulic front-end operation part is provided with a hydraulic lock and a throttling hydraulic lock, and the hydraulic lock and the throttling hydraulic lock are both arranged on a wall body of the hydraulic front-end operation part close to a heat source.
4. The system of claim 1, wherein the main valve is a load-sensitive multi-way valve.
5. The system of claim 1, wherein the pump body is a gear pump.
6. The system of claim 1,
the cooling oil pipe is provided with an overflow pipe, the overflow pipe is provided with a safety overflow valve, one end of the overflow pipe is connected with the hydraulic oil tank, and the other end of the overflow pipe is connected with the cooling oil pipe between the pump body and the main valve.
7. The system of claim 1, wherein the return line is configured with a return filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121506567.8U CN215409541U (en) | 2021-07-02 | 2021-07-02 | Pipeline hydraulic oil flushing and cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121506567.8U CN215409541U (en) | 2021-07-02 | 2021-07-02 | Pipeline hydraulic oil flushing and cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215409541U true CN215409541U (en) | 2022-01-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121506567.8U Active CN215409541U (en) | 2021-07-02 | 2021-07-02 | Pipeline hydraulic oil flushing and cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215409541U (en) |
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2021
- 2021-07-02 CN CN202121506567.8U patent/CN215409541U/en active Active
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