阅读说明：本技术 泵入口保护装置以及带泵入口保护装置的润滑系统 (Pump inlet protection device and lubricating system with same ) 是由 温树强 胡鸿产 于 2021-02-25 设计创作，主要内容包括：本发明提供一种泵入口保护装置以及带泵入口保护装置的润滑系统。该泵入口保护装置,其特征在于,包括：箱体,所述箱体上设置有箱体进油口和箱体出油口,所述箱体进油口设置有第一阀门,所述箱体出油口设置有第二阀门；所述箱体的内部在所述第一阀门的侧旁设置有加热装置,在所述第二阀门的侧旁设置有过滤装置；所述箱体的外壁在对应箱体进油口、箱体出油口位置设置有接口结构,所述接口结构用于所述泵入口保护装置可拆卸接入润滑系统的泵口。本发明的泵入口保护装置以及带泵入口保护装置的润滑系统可去除流体内的杂质,保护泵的啮合面；提供合适的油温条件,缩短启动时间。(The invention provides a pump inlet protection device and a lubrication system with the same. This pump inlet protection device, its characterized in that includes: the oil inlet of the tank body is provided with a first valve, and the oil outlet of the tank body is provided with a second valve; a heating device is arranged beside the first valve in the box body, and a filtering device is arranged beside the second valve; the outer wall of the box body is provided with an interface structure at the position corresponding to the oil inlet and the oil outlet of the box body, and the interface structure is used for the pump inlet protection device to detachably connect a pump port of a lubricating system. The pump inlet protection device and the lubricating system with the pump inlet protection device can remove impurities in fluid and protect the meshing surface of a pump; provides proper oil temperature condition and shortens the starting time.)

1. A pump inlet protection device, comprising: the box body is provided with a plurality of air inlets,

the tank body is provided with a tank body oil inlet and a tank body oil outlet, the tank body oil inlet is provided with a first valve, and the tank body oil outlet is provided with a second valve;

a heating device is arranged beside the first valve in the box body, and a filtering device is arranged beside the second valve;

the outer wall of the box body is provided with an interface structure at the position corresponding to the oil inlet and the oil outlet of the box body, and the interface structure is used for the pump inlet protection device to detachably connect a pump port of a lubricating system.

2. The pump inlet protection device of claim 1, wherein:

wherein, the filter equipment contains a plurality of magnetic part that are used for adsorbing iron fillings.

3. The pump inlet protection device of claim 1, wherein:

the interface structure is any one of a threaded pipe connection structure, a flange type pipe connection structure, a ferrule type pipe connection structure and a groove type pipe connection structure.

4. A lubrication system with a pump inlet protection device, comprising: a base, a pump inlet protection device, a pump device, a filter and a cooler,

the pump inlet protection device, the pump device, the filter and the cooler are all installed on the base and sequentially connected to a lubricating oil pipeline from a system oil inlet to an equipment interface;

the pump inlet protection device comprises a box body, wherein a box body oil inlet and a box body oil outlet are formed in the box body, a first valve is arranged at the box body oil inlet, and a second valve is arranged at the box body oil outlet;

a heating device is arranged beside the first valve in the box body, and a filtering device is arranged beside the second valve;

the oil inlet of the box body is connected with the oil inlet of the system through a pipeline, and the oil outlet of the box body is connected with the inlet of the pump device through a pipeline.

5. The lubrication system with pump inlet protection as set forth in claim 4, further comprising: an electric controller is used for controlling the electric power,

the first valve and the second valve are both electric control valves, and the first valve and the second valve are respectively and electrically connected with the electric controller.

6. The lubrication system with pump inlet protection as set forth in claim 5, wherein:

wherein, the heating device is an electric heating device, and the heating device is electrically connected with the electric controller.

7. The lubrication system with pump inlet protection as set forth in claim 5, wherein:

and a liquid level switch is also arranged in the box body and is electrically connected with the electric controller.

8. The lubrication system with pump inlet protection as claimed in any one of claims 4 to 7, wherein:

wherein, the filter equipment contains a plurality of magnetic part that are used for adsorbing iron fillings.

9. The lubrication system with pump inlet protection as set forth in claim 4 or 5, further comprising: a first pressure gauge, a second pressure gauge, a thermometer and a flowmeter,

wherein the first pressure gauge is arranged on a connecting pipeline between the pump device and the filter;

the second pressure gauge, the thermometer and the flowmeter are sequentially arranged on a connecting pipeline between the cooler and the equipment interface.

Technical Field

The invention relates to the technical field of lubricating equipment, in particular to a pump inlet protection device and a lubricating system with the same.

Background

The lubricating system is widely applied, particularly plays an important role in the lubrication of transmission equipment under various working conditions, the transmission equipment has large and heavy working load, basically works in the fields, wharfs, mines and the like, the environment is complex and severe, and if the lubricating bearing of the equipment cannot be well lubricated, the whole engineering progress and the implementation rhythm of factory production can be influenced, so the reliability of the lubricating system is very important.

The large ground object in China, different climatic and geological conditions cause variable working conditions, the transmission device serving as a universal device is also applied to various working conditions, particularly the transmission device at low temperature, lubricating oil in a box body needs to be heated for a long time due to low oil temperature, or a lubricating system needs to be started forcibly, the resistance of the system is very large due to low oil temperature, the pressure is very high, the flow cannot meet the system requirement, the vibration is large, the noise is also large, great impact is generated, the whole system gives an alarm, a main machine cannot be started, and people feel that the device fails.

In addition, the lubricating system of the existing transmission system is not provided with a pump inlet protection device, mechanical abrasion in a transmission box body generates a large amount of scrap iron and impurities, the impurities are directly conveyed to enter a cavity of a gear pump or a screw pump through a pipeline, the impurities are directly contacted with a gear pair or a screw pair, a precise meshing surface is easily scratched, gaps are increased, flow is changed, influence on the quantitative pumps is fatal, even large particles can be directly clamped on the meshing surface, a motor for transmission is overloaded and burnt, even a shaft is broken, the whole pump device is damaged, and loss is huge.

Disclosure of Invention

The present invention is made to solve the above problems, and an object of the present invention is to provide a pump inlet protector and a lubrication system with the pump inlet protector, which can meet the requirements of low temperature and heavy load, and do not delay too much start time and not make the start conditions of a pump too harsh.

In order to achieve the purpose, the invention adopts the following technical scheme:

< Structure I >

The invention provides a pump inlet protection device, which is characterized by comprising: the oil inlet of the box body is provided with a first valve, and the oil outlet of the box body is provided with a second valve; a heating device is arranged beside the first valve in the box body, and a filtering device is arranged beside the second valve; the outer wall of box is provided with interface structure corresponding box oil inlet, box oil-out position, and interface structure is used for pump entry protection device can dismantle the pump mouth that inserts lubricating system.

The pump inlet protection device provided by the invention can also have the following characteristics: wherein, filter equipment contains a plurality of magnetic part that are used for adsorbing iron fillings.

The pump inlet protection device provided by the invention can also have the following characteristics: wherein, the interface structure is any one of a threaded pipe connection structure, a flange type pipe connection structure, a ferrule type pipe connection structure and a groove type pipe connection structure.

< Structure two >

The invention provides a lubrication system with a pump inlet protection device, which is characterized by comprising: the device comprises a base, a pump inlet protection device, a pump device, a filter and a cooler, wherein the pump inlet protection device, the pump device, the filter and the cooler are all arranged on the base and are sequentially connected to a lubricating oil pipeline from a system oil inlet to an equipment interface; the pump inlet protection device comprises a box body, wherein a box body oil inlet and a box body oil outlet are formed in the box body; a heating device is arranged beside the first valve in the box body, and a filtering device is arranged beside the second valve; the oil inlet of the box body is connected with the oil inlet of the system through a pipeline, and the oil outlet of the box body is connected with the inlet of the pump device through a pipeline.

In the lubrication system with a pump inlet protection device provided by the present invention, the lubrication system further includes: and the first valve and the second valve are electrically connected with the electric controller respectively.

In the lubricating system with the pump inlet protection device provided by the invention, the lubricating system can also have the following characteristics: wherein, heating device is electric heating device, and heating device is connected with the electric controller electricity.

In the lubricating system with the pump inlet protection device provided by the invention, the lubricating system can also have the following characteristics: wherein, the inside of box still is provided with liquid level switch, and liquid level switch is connected with the electric controller electricity.

In the lubricating system with the pump inlet protection device provided by the invention, the lubricating system can also have the following characteristics: wherein, filter equipment contains a plurality of magnetic part that are used for adsorbing iron fillings.

In the lubricating system with the pump inlet protection device provided by the invention, the lubricating system can also have the following characteristics: the filter comprises a pump device, a filter, a first pressure gauge, a second pressure gauge, a thermometer and a flowmeter, wherein the first pressure gauge is arranged on a connecting pipeline between the pump device and the filter; the second pressure gauge, the thermometer and the flowmeter are sequentially arranged on a connecting pipeline between the cooler and the equipment interface.

The invention has the following functions and effects:

the pump inlet protection device and the lubricating system with the same solve the problem of negative effects of two fatal conditions of the existing pump inlet: (1) the impurities in the fluid are removed, the meshing surface of the pump is protected, and (2) a proper oil temperature condition can be provided, so that the high pressure of the system caused by the overlarge resistance of the pump outlet is avoided. The reduction of manual maintenance in automatic lubrication equipment is a trend of industrialized progress, eliminates the condition that personnel maintenance is not in place and can damage the normal use of the equipment, and has great advancement.

The pump inlet protection device and the lubricating system with the pump inlet protection device end the history of manual intervention of the transmission lubricating system due to climate and heavy load condition changes every time, and realize automatic centralized lubrication and cooling under all-weather working conditions. The problem that full-automatic centralized lubrication can be realized under the working condition that the climate and heavy load conditions change in transmission equipment is solved. The protection device can prolong the service life of the pump and ensure the good operation of the whole lubricating system.

In order to prevent the damage of the impurities to the pump, the prior art has the operation of adding the oil suction filter at the pump inlet to remove the impurities in the fluid, but the operation has a drawback that the oil suction filter is often blocked, and in addition, the oil suction port is pumped, so that the maintenance is inconvenient, and the service efficiency of the lubricating system is influenced. The pump inlet protection device and the lubricating system with the pump inlet protection device have the advantages that the convenience of maintenance is considered in design, the box body design is adopted in the pump inlet protection device, so that the filtering area is increased, the internal filtering device can be replaced in time, and the operation of equipment is not influenced.

For the low temperature condition, the prior art adds a heater in the box body of the transmission equipment, but the structure of the transmission equipment needs to be changed in the mode, the volume is larger, the heating is not circulated, and the heating efficiency is low. The pump inlet protection device and the lubricating system with the pump inlet protection device have the advantages that the heating equipment is arranged in the pump inlet protection device, and when lubricating oil passes through the pump inlet protection device, the oil temperature can be directly increased to meet the starting condition of the pump through online heating, so that a main machine of the equipment cannot wait for a long time, the production time is saved, and the production efficiency is improved.

Drawings

Fig. 1 is a schematic structural view of a lubrication system with a pump inlet protection device in an embodiment of the present invention.

Reference numerals: the device comprises a box body 4, a first valve 31, a second valve 32, a heating device 1, a filtering device 2, a pump device shell 5, an electric pump 51, a filter 8, a cooler 9, a first pressure gauge 7, a third valve 6, a second pressure gauge 10, a thermometer 11, a flowmeter 12, a system oil inlet 14 and an equipment interface 13.

Detailed Description

In order to make the technical means, the original characteristics, the achieved objects and the effects of the present invention easily understood, the following embodiments are made to describe the pump inlet protection device and the lubrication system with the pump inlet protection device of the present invention in detail with reference to the attached drawings.

< example 1>

As shown in fig. 1, the present embodiment provides a lubrication system with a pump inlet protection device, the lubrication system comprising: a base, a pump inlet protection device, a pump device, a filter 8, a cooler 9, a number of monitoring instruments and an electrical controller. Monitoring meters include, but are not limited to, thermometers, flow meters, pressure gauges.

A base (not shown) is used to provide support for the lubrication system. The pump inlet protection device, the pump device, the filter 8 and the cooler 9 are all installed on the base and are sequentially connected to a lubricating oil pipeline from a system oil inlet 14 to an equipment interface 13, and arrows in the figure show the flowing direction of lubricating oil in the pipeline.

The pump inlet protection device comprises a tank 4, the tank 4 is provided with a tank oil inlet and a tank oil outlet, and the tank 4 is used for containing lubricating oil. The tank oil inlet is connected with the system oil inlet 14 through a pipeline, and the tank oil outlet is connected with the inlet of the pump device through a pipeline. The oil inlet of the tank body is provided with a first valve 31, the oil outlet of the tank body is provided with a second valve 32, the first valve 31 and the second valve 32 are both electric control valves, and the first valve 31 and the second valve 32 are respectively and electrically connected with an electric controller. The interior of the tank 4 is provided with a heating device 1 adjacent to the first valve 31 and a filtering device 2 adjacent to the second valve 32.

The heating device 1 is an electric heating device, and the heating device 1 is electrically connected with an electric controller. The heating device 1 comprises a temperature control switch and a plurality of heating cores. When the interior of the box 4 is filled with the lubricating oil, the heating core is located below the level of the lubricating oil and is used for heating the lubricating oil. The quantity and the total power of the heating cores are set according to the temperature rise requirement of the lubricating oil in the working condition. The temperature control switch automatically cuts off a circuit of the heating device after the temperature reaches a set value, so that the oil temperature is prevented from rising too high, and the lubricating performance of the lubricating oil is prevented from being damaged due to the fact that the oil temperature is too high.

The filter device 2 includes a strainer portion and a magnetic adsorption portion. The lubricating oil of coming from carrying in the transmission equipment box may have impurity and the iron fillings of large granule, and the filter screen part can filter the impurity of large granule, guarantees that the lubricating oil of export does not contain the impurity of large granule, and the magnetic adsorption part comprises a plurality of magnetic part that are used for adsorbing iron fillings, adsorbs iron fillings, has avoided damaging accurate gear and screw rod pair in the pump body is carried to the lubricating oil of processing via filter equipment 2.

The heating device 1 and the filtering device 2 are preferably detachably mounted, for example, a supporting seat or a supporting frame is fixed in the box body, and the heating device 1 and the filtering device 2 are detachably mounted on the supporting seat or the supporting frame through a bolt connection or a clamping connection, so that the heating device 1 or the filtering device 2 is convenient to detach when the heating device 1 or the filtering device 2 breaks down or is periodically repaired and replaced. The box 4 is provided with a box body to be provided with an upper cover, when the box body needs to be replaced, the first valve 31 and the second valve 32 are closed at the same time, the upper cover is opened, and a maintenance worker can replace the heating device 1 and the filtering device 2 on line.

The inside of the box body 4 is also provided with a liquid level sensor (not shown in the figure), and the liquid level sensor is electrically connected with the electric controller. The liquid level sensor is used for monitoring the liquid level of lubricating oil, and when the liquid level sensor senses that the liquid level is lower than the preset value, the liquid level sensor outputs a signal to the electric controller, and the electric controller receives the signal and then controls the circuit of the heating device to be disconnected, so that the heating device is prevented from being in an idle burning stage, and equipment is prevented from being damaged.

The pump device comprises a pump device housing 5 and an electric pump 51 arranged in the housing. A branch is connected to the connection line between the pump unit and the filter 8, and a third valve 6 and a first pressure gauge 7 are provided on the branch. The first pressure gauge 7 is used to monitor the line pressure between the pump unit and the filter, and the third valve 6 is used as a regulating valve, and the pressure in the line can be regulated by controlling the third valve. Preferably, the third valve 6 is an electrically controlled valve, the first pressure gauge 7 is an electronic pressure gauge, and the third valve 6 and the first pressure gauge 7 are electrically connected with the electric controller.

The filter 8 is used for microfiltration. The filter 8 is a precision filter with a filtering precision smaller than 100um, specifically, for example, a precision filter with a filtering precision of 50um and a microporous filter element is adopted, which is not limited, and the precision filter can be selected according to the equipment working condition and the specific requirement on the lubricating oil.

The cooler 9 is used to appropriately cool the lubricating oil. The inlet of the cooler 9 is connected to the outlet of the filter 8. The outlet of the cooler 9 is connected to the device connection 13 via a line. A second pressure gauge 10, a thermometer 11 and a flowmeter 12 are sequentially arranged on a connecting pipeline between the cooler 9 and the equipment interface 13. The second pressure gauge 10 is an electronic pressure gauge, the thermometer 11 adopts an electronic temperature sensor, and the flowmeter adopts an electromagnetic flow sensor. The second pressure gauge 10, the thermometer 11 and the flowmeter 12 are respectively electrically connected with the electric controller. The electric controller is preferably a PLC electric controller. Preferably, the electric controller can also be electrically connected with a display screen and is used for displaying the pipeline pressure value, the temperature value, the flow value and the like on the display screen in a centralized manner.

At low temperature, the oil temperature of the transmission equipment is close to room temperature, and a common pump device can be started only when the temperature is more than 15-20 ℃. The lubricating system with the pump inlet protection device can solve the problem of difficult starting. The operation of the lubrication system with pump inlet protection of the present embodiment at low temperature is as follows:

the lubricating oil in the transmission equipment is extracted through the pump device, the lubricating oil firstly enters a box body of the pump inlet protection device through a system oil inlet 14, the oil temperature is rapidly increased to the temperature suitable for starting the pump in the box body through the heating device 1, and scrap iron and impurities brought in from the transmission equipment are filtered through the filtering device 2. The lubricant then enters the pump unit, which solves the problems of low temperature effects and damage of impurities to the delicate components of the gear or screw in the pump, since the lubricant has been previously well treated. The lubricating oil is then passed through a fine filter 8 to filter out small particulate impurities. And then, the lubricating oil cleaned by the precision filter 8 enters the cooler 8 for cooling, the cooled lubricating oil can be monitored in real time in a pipeline through the second pressure gauge 10, the thermometer 11 and the flowmeter 12 and then is transmitted back to the transmission equipment, so that cleaning and heat exchange are completed, lubricating points and friction pairs in the transmission equipment are well lubricated and cooled, impurities generated by the friction pairs are taken away, and normal work of the transmission equipment and a host machine thereof is ensured.

< example 2>

The present embodiment provides a pump inlet protection device, which is also provided with a heating device and a filtering device to realize the heating function and the filtering function as in embodiment 1.

The present embodiment is different from embodiment 1 in that: in example 1, a lubrication system integrated with a pump inlet protection device is provided. The embodiment provides a detachable pump inlet protection device, and the outer wall of the pump inlet protection device box is provided with an interface structure at the positions corresponding to the oil inlet and the oil outlet of the box, and the interface structure is used for the detachable connection of the pump inlet protection device to a pump port of an existing lubricating system. The interface structure is any one of a threaded pipe connection structure, a flange type pipe connection structure, a ferrule type pipe connection structure and a groove type pipe connection structure.

The pump inlet protection device of this embodiment can dismantle and connect current all kinds of lubricating system, and application scope is extensive, and market prospect is good, and the transportation is convenient, connects convenient operation.

The above embodiments are merely preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.