CN111594738A - Regulating valve oil mist lubricating device - Google Patents
Regulating valve oil mist lubricating device Download PDFInfo
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- CN111594738A CN111594738A CN202010468877.9A CN202010468877A CN111594738A CN 111594738 A CN111594738 A CN 111594738A CN 202010468877 A CN202010468877 A CN 202010468877A CN 111594738 A CN111594738 A CN 111594738A
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- pipe
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- diameter
- air supply
- supply pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/30—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated the oil being fed or carried along by another fluid
- F16N7/32—Mist lubrication
- F16N7/34—Atomising devices for oil
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N23/00—Special adaptations of check valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2270/00—Controlling
- F16N2270/20—Amount of lubricant
- F16N2270/22—Amount of lubricant with restrictions
- F16N2270/26—Amount of lubricant with restrictions variable
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2270/00—Controlling
- F16N2270/70—Supply
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Lift Valve (AREA)
Abstract
The invention provides an oil mist lubricating device for a regulating valve, which belongs to the technical field of oil mist lubrication and comprises an air supply pipe, a diameter changing mechanism, a suction pipe and a flowmeter, wherein one end of the air supply pipe is connected with an air pump, and the other end of the air supply pipe is connected with a pneumatic regulating valve; the air supply pipe is provided with a plurality of variable-diameter pipes; the reducing mechanism is arranged on the variable-diameter pipe and used for changing the inner diameter of the variable-diameter pipe; the suction pipes are provided with a plurality of suction pipes, one ends of the suction pipes are communicated with the side wall of the variable-diameter pipe, and the other ends of the suction pipes are connected with an oil tank for loading lubricating oil and used for conveying the lubricating oil into the air supply pipe; the flowmeter is arranged on the suction pipe and used for measuring the flow of the lubricating oil in the suction pipe. The invention provides a regulating valve oil mist lubricating device, when the pressure difference between the pressure of an air supply pipe and a variable-diameter pipe is larger than the force required for sucking lubricating oil in an oil tank into the variable-diameter pipe through a suction pipe, the lubricating oil is sucked into the variable-diameter pipe to form oil mist, so that the lubricating oil mist lubricating device can lubricate elements in a pneumatic regulating valve and prevent the elements in the pneumatic regulating valve from being stuck.
Description
Technical Field
The invention belongs to the technical field of oil mist lubrication, and particularly relates to an adjusting valve oil mist lubrication device.
Background
The regulating valve is also called a control valve, and in the field of industrial automation process control, the final control element for changing the process parameters of medium flow, pressure, temperature, liquid level and the like by power operation through receiving the control signal output by a regulating control unit. Generally, the valve consists of an actuating mechanism and a valve, and if the valve is characterized by a stroke, the regulating valve can be divided into a straight stroke and an angular stroke; the pneumatic regulating valve, the electric regulating valve and the hydraulic regulating valve can be divided into three types according to the power used by the matched executing mechanism; the method is divided into three types, namely a linear characteristic, an equal percentage characteristic and a parabolic characteristic according to functions and characteristics of the method. The regulating valve is suitable for air, water, steam, various corrosive media, slurry, oil and other media. In the automatic control of modern plants, control valves play a very important role, and the production of these plants depends on the correct distribution and control of the flowing medium.
In the regulating valve, the pneumatic regulating valve takes compressed gas as a power source, takes a cylinder as an actuator, drives a valve by means of accessories such as a valve positioner, a converter, an electromagnetic valve, a position-retaining valve, a gas storage tank, a gas filter and the like, realizes switching value or proportional regulation, and receives a control signal of an industrial automatic control system to complete the regulation of a pipeline medium: flow, pressure, temperature, liquid level, etc. The pneumatic regulating valve has the characteristics of simple control, quick response, and intrinsic safety, and no additional explosion-proof measures are needed.
However, in the actual working process, the regulating valve has a great problem, the sliding part in the pneumatic machine such as the electromagnetic valve and the air cylinder needs to be frequently operated, and if the mechanical elements are blocked, the action of the regulating valve or the electromagnetic valve is not smooth or even not operated, so that the production continuity is affected, and especially, the important production process has great potential safety hazard.
Disclosure of Invention
The invention aims to provide an oil mist lubricating device for a regulating valve, and aims to solve the problem of jamming of the regulating valve.
In order to achieve the purpose, the invention adopts the technical scheme that: there is provided a regulator valve mist lubrication apparatus comprising:
one end of the air supply pipe is used for being connected with the air pump, and the other end of the air supply pipe is used for being connected with the pneumatic regulating valve; the gas supply pipe is provided with a plurality of variable-diameter pipes;
the reducing mechanism is arranged on the variable-diameter pipe and used for changing the inner diameter of the variable-diameter pipe so as to change the air flow velocity in the variable-diameter pipe;
the suction pipes are provided with a plurality of suction pipes, one ends of the suction pipes are communicated with the side wall of the variable-diameter pipe, and the other ends of the suction pipes are connected with an oil tank used for loading lubricating oil and used for conveying the lubricating oil into the air supply pipe;
and the flowmeter is arranged on the suction pipe and used for metering the flow of the lubricating oil in the suction pipe.
As another embodiment of this application, a plurality of but reducing pipe series connection be in on the air supply pipe, the air in the air supply pipe is in proper order through a plurality of with but reducing pipe.
As another embodiment of the present application, a plurality of the variable diameter pipes are connected in parallel to the gas supply pipe.
As another embodiment of the present application, the variable diameter tube includes a rubber tube; both ends of the rubber tube are sleeved with the air supply tube; the both ends of rubber tube are equipped with and are used for locking the rubber tube with the retaining member of air supply pipe.
As another embodiment of the present application, the reducing mechanism includes:
the sleeve is sleeved outside the rubber pipe, the inner wall of the sleeve and the outer wall of the rubber pipe are arranged at intervals, and the length of the sleeve is greater than that of the variable-diameter pipe;
the air bag is arranged between the sleeve and the rubber tube along the circumferential direction of the side wall of the sleeve;
an inflation member in communication with the air bag for inflating the air bag;
and the end covers are arranged at two ends of the sleeve and used for plugging the sleeve.
As another embodiment of the present application, a connection end of the air supply pipe with the rubber pipe is provided with a tapered head for preventing air from flowing from the air supply pipe to the rubber pipe or from the rubber pipe to the air supply pipe from generating a turbulent flow.
As another embodiment of this application, the cone head includes along a plurality of arcs of the terminal surface circumference interval setting of air supply pipe, a plurality of the arc is the elastic component.
As another embodiment of the present application, a plurality of arc-shaped rods are circumferentially arranged inside the sleeve, the radial direction of the plurality of arc-shaped rods is coplanar with the radial direction of the sleeve, and the tops of the plurality of arc-shaped rods face the rubber tube; the two ends of the arc-shaped rods are connected with the end covers in a sliding mode.
As another embodiment of the present application, a rigid skeleton is axially disposed inside the rubber tube to limit the minimum inner diameter of the rubber tube, so as to prevent the rubber tube from being blocked when the inner diameter of the rubber tube is reduced.
As another embodiment of the present application, a nozzle is disposed at a connection end of the suction pipe and the variable diameter pipe to uniformly spray the lubricant.
The regulating valve oil mist lubricating device provided by the invention has the beneficial effects that: compared with the prior art, the regulating valve oil mist lubricating device is connected with the air pump and the pneumatic regulating valve through the air supply pipe, and the air in the air pump is transmitted to the pneumatic regulating valve through the air supply pipe to control the opening and closing of the regulating valve; the inner diameters of a plurality of variable-diameter pipes are adjusted through a reducing mechanism, the inner diameters of the variable-diameter pipes are smaller than that of an air supply pipe, when air enters the variable-diameter pipes from the air supply pipe, the cross sections are reduced, the flow speed is increased, the pressure in the upstream air supply pipe is P1, the pressure in the variable-diameter pipes is reduced to P2, when the pressure difference delta P between P1 and P2 is larger than the force rho gh required for sucking lubricating oil in an oil tank into the variable-diameter pipes through a suction pipe, the lubricating oil is sucked into the variable-diameter pipes, the lubricating oil entering the variable-diameter pipes is mixed with the air to form oil mist, and the oil mist enters the pneumatic adjusting valve along the air supply pipe, plays a lubricating role for elements in the pneumatic adjusting valve and prevents the elements in the pneumatic adjusting valve;
the air pressure of the air pump for supplying air to the pneumatic regulating valve is kept stable, but as the lubricating oil in the oil tank is sucked into the variable-diameter pipe, the liquid level in the oil tank drops, the height difference between the liquid level and the variable-diameter pipe becomes larger, the pressure for sucking the lubricating oil from the oil tank into the variable-diameter pipe increases, the inner diameter of the variable-diameter pipe is controlled to be reduced through the reducing mechanism, after the inner diameter of the variable-diameter pipe is reduced, the flow speed in the variable-diameter pipe continues to increase, P2 continues to decrease, and delta P increases, the lubricating oil with the lowered liquid level is sucked into the variable-diameter pipe, and the oil mist in the air supply pipe is continuously supplied.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural view of a regulator valve oil mist lubrication apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic view of a regulator valve oil mist lubrication apparatus according to yet another embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a variable-diameter pipe according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a variable diameter pipe according to another embodiment of the present invention;
in the figure:
1. a gas supply pipe; 2. a variable diameter tube; 21. and a locking member.
3. A diameter-changing mechanism; 31. a cannula, 32, balloon; 33. end caps, 34, inflatable members; 341. a valve;
4. a straw; 5. an oil tank; 6. a flow meter; 7. an arc-shaped sheet; 8. an arcuate bar; 9. a rigid skeleton.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 and 2 together, the regulating valve oil mist lubrication device of the present invention will now be described. The regulating valve oil mist lubricating device comprises an air supply pipe 1, a reducing mechanism 3, a suction pipe 4 and a flowmeter 6, wherein one end of the air supply pipe 1 is connected with an air pump, the other end of the air supply pipe 1 is connected with a pneumatic regulating valve, the air pump supplies air to the pneumatic regulating valve through the air supply pipe 1, power is supplied to the pneumatic regulating valve, and the opening and closing of the pneumatic regulating valve are controlled; the middle of the gas supply pipe 1 is divided into a plurality of sections, the middle of two adjacent gas supply pipes 1 are connected through a variable-diameter pipe 2, each variable-diameter pipe 2 is provided with a reducing mechanism 3, and the inner diameter of each variable-diameter pipe 2 can be controlled through the reducing mechanism 3; each variable-diameter pipe 2 is connected with a suction pipe 4, and the other end of each suction pipe 4 extends into the position below the liquid level of lubricating oil in an oil tank 5 positioned below the variable-diameter pipe 2; after the air pump is started, the air in the air pump flows in the air supply pipe 1 and the variable-diameter pipe 2, the flowing air has a certain pressure, the pressure of the air in the air supply pipe 1 is P1, the inner diameter of the variable-diameter pipe 2 is reduced through the reducing mechanism 3, the flow speed of the air in the variable-diameter pipe 2 is increased, the pressure is P2, the variable-diameter pipe 2 and the air supply pipe 1 at two ends form a Venturi tube, the air flow rate is high, the pressure is low, the pressure is high, the P1 is higher than the P2, the pressure difference between the two is delta P, the flowing air can suck the lubricating oil in the oil tank 5 into the variable-diameter pipe 2, the pressure required for sucking the lubricating oil into the variable-diameter pipe 2 from the oil tank 5 is rho gh, h is the density of the lubricating oil, the height difference between the liquid level of the oil tank 5 and the variable-diameter pipe 2, when the delta P is larger than or equal to or larger than rho, the lubricating oil is sucked into the variable-diameter pipe 2 by air, an oil mist is formed, and the formed oil mist enters the pneumatic control valve through the air supply pipe 1, adheres to the surfaces of the components of the pneumatic control valve, and plays a role in lubrication.
The air pressure of the air pump for supplying air to the pneumatic control valve is kept stable, but as the lubricating oil in the oil tank 5 is sucked into the variable-diameter pipe 2, the liquid level in the oil tank 5 drops, the height difference between the liquid level and the variable-diameter pipe 2 increases, the pressure for sucking the lubricating oil from the oil tank 5 into the variable-diameter pipe 2 increases, the inner diameter of the variable-diameter pipe 2 is controlled to be reduced by the reducing mechanism 3, after the inner diameter of the variable-diameter pipe 2 is reduced, the flow rate in the variable-diameter pipe 2 continues to increase, P2 continues to decrease, and Δ P increases, the lubricating oil with the lowered liquid level is sucked into the variable-diameter pipe 2, and the supply of the oil mist in the air supply pipe 1 continues.
The flowmeter 6 is arranged on the suction pipe 4, the flow of the lubricating oil in the suction pipe 4 is observed in real time through the flowmeter 6, and after the flow of the lubricating oil in the suction pipe 4 is observed to be reduced, the inner diameter of the variable-diameter pipe 2 is reduced through the reducing mechanism 3.
Compared with the prior art, the regulating valve oil mist lubricating device provided by the invention is characterized in that an air pump and a pneumatic regulating valve are connected through an air supply pipe 1, and air in the air pump is transferred to the pneumatic regulating valve through the air supply pipe 1 to control the opening and closing of the regulating valve; the inner diameters of a plurality of variable-diameter pipes 2 are adjusted through a reducing mechanism 3, the inner diameter of each variable-diameter pipe 2 is smaller than that of an air supply pipe 1, when air enters the variable-diameter pipes 2 from the air supply pipe 1, the cross section is reduced, the flow speed is increased, the pressure in the upstream air supply pipe 1 is P1, the pressure in each variable-diameter pipe 2 is reduced to P2, when the pressure difference delta P between P1 and P2 is larger than the force rho required for sucking lubricating oil in an oil tank 5 into the variable-diameter pipes 2 through a suction pipe 4, the lubricating oil is sucked into the variable-diameter pipes 2, the lubricating oil entering the variable-diameter pipes 2 is mixed with the air to form oil mist, the oil mist enters the pneumatic adjusting valve along the air supply pipe 1, the lubricating effect is achieved on elements in the pneumatic adjusting valve, and the elements in the pneumatic adjusting valve.
Referring to fig. 1, a plurality of variable diameter pipes 2 are connected in series to an air supply pipe 1, the air supply pipe 1 is divided into a plurality of sections according to the number of the variable diameter pipes 2, one variable diameter pipe 2 is connected between two adjacent sections of the air supply pipe 1, each variable diameter pipe 2 is connected with a suction pipe 4, the other end of the suction pipe 4 is connected to a main pipe on the main pipe and extends below the liquid level of an oil tank 5, air in the air supply pipe 1 sequentially passes through the plurality of variable diameter pipes 2, when passing through each variable diameter pipe 2, a pressure difference Δ P is formed, lubricating oil in the oil tank 5 is sucked into the variable diameter pipe 2, oil mist in the plurality of variable diameter pipes 2 is mixed together to lubricate elements of a pneumatic valve, and the oil mist in the air supply pipe 1 is abundant.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 2, a plurality of variable-diameter pipes 2 are connected in parallel to an air supply pipe 1, a crossover sub is installed at an outlet of the air supply pipe 1 at the upstream of the variable-diameter pipes 2, the crossover sub has an air inlet and a plurality of air outlets, the air inlet is connected to an outlet at the side of the air supply pipe 1, the air outlets are respectively connected to inlets of the plurality of variable-diameter pipes 2, air is shunted from the air supply pipe 1 to the plurality of variable-diameter pipes 2, and it cannot be guaranteed that the air flow velocities in each variable-diameter pipe 2 are the same, so a flow meter 6 is arranged on a suction pipe 4 connected to each variable-diameter pipe 2, the inner diameter of the variable-diameter pipe 2 is adjusted in real time according to the flow rate of the lubricating oil measured by each flow meter 6, and it is guaranteed that each variable-diameter pipe 2; the outlet of the variable-diameter pipe 2 is connected with the downstream air supply pipe 1 through a conversion joint, and after the lubricating oil entering each variable-diameter pipe 2 forms oil mist, the lubricating oil is converged in the downstream air supply pipe 1 and then enters the pneumatic regulating valve, so that the supply amount of the oil mist to the pneumatic regulating valve is ensured.
As a specific implementation manner of the embodiment of the present invention, the variable diameter pipe 2 includes a rubber pipe, when the variable diameter pipes 2 are connected in series, both ends of the rubber pipe are sleeved on the air supply pipe 1, the rubber pipe has a certain elasticity, and the variable diameter mechanism 3 changes the inner diameter of the rubber pipe by radially pressing the rubber pipe to the inner side; in order to prevent both ends of the rubber tube from falling off the air supply pipe 1 when the rubber tube is deformed, both ends of the rubber tube are fastened to the air supply pipe 1 with a binding band serving as a locking member 21 for locking the rubber tube to the air supply pipe 1.
In this embodiment, the outer wall of the air supply pipe 1 and the connection end of the rubber pipe is provided with an annular groove, the rubber pipe is sleeved on the air supply pipe 1, the strapping tape is aligned to the groove of the air supply pipe 1, the strapping tape is tightened, and the strapping tape is embedded into the groove to prevent the bearing from slipping.
Similarly, when the variable-diameter pipes 2 are connected in parallel, the two ends of the rubber pipe are respectively sleeved on the conversion joint and are fastened by the strapping tape.
As a specific implementation manner of the embodiment of the present invention, referring to fig. 1 to 4, the reducing mechanism 3 includes a sleeve 31, an air bag 32, an inflation member 34, and an end cap 33; the sleeve 31 is sleeved on the rubber tube, a certain distance is reserved between the inner wall of the sleeve 31 and the outer wall of the rubber tube, the air bag 32 is arranged in a gap between the inner wall of the sleeve 31 and the outer wall of the rubber tube, two ends of the sleeve 31 are sealed by the end covers 33, the sleeve 31, the rubber tube and the end covers 33 form a closed space, the air bag 32 is located in the closed space, the inflating piece 34 penetrates through the side wall of the sleeve 31 and then is connected with the air bag 32 to inflate the air bag 32, the air bag 32 is inflated and then expands in the closed space, the side wall of the rubber tube is compressed, and the inner diameter of the rubber tube is reduced.
In this embodiment, the inflator 34 is an inflator, the inflator is electrically connected to the PLC controller, the flowmeter 6 is an electronic flowmeter 6, the electronic flowmeter 6 is also electrically connected to the PLC controller, a minimum flow value of the flowmeter 6 is preset in the controller, when the flow rate of the lubricating oil measured by the flowmeter 6 in real time is smaller than the preset minimum flow value, the controller starts the inflator to inflate the air bag 32, the air bag 32 expands after being inflated, the rubber tube is squeezed, the inner diameter of the rubber tube decreases, Δ P increases, the flow rate of the lubricating oil in the suction tube 4 increases, and the suction tube 4 is prevented from being broken.
A valve 341 is provided between the inflator 34 and the airbag 32, and when the inflation is performed, the valve 341 is opened, and after the inflation is completed, the valve 341 is closed.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 3, a tapered head is disposed at a connection end of the air supply pipe 1 and the rubber pipe, a large-diameter end of the tapered head is connected to an end surface of the air supply pipe 1, a tapered channel is formed by an opening at a top of the tapered head, and when air enters the variable-diameter pipe 2 from the air supply pipe 1 or enters the air supply pipe 1 from the variable-diameter pipe 2, the air passes through the tapered channel, and flows smoothly in the tapered channel, so as to prevent air from generating turbulence when flowing from the air supply pipe 1 to the rubber pipe or from the rubber pipe to the air supply pipe 1, and the air and the lubricating oil are mixed.
In this embodiment, the cone includes a plurality of arcs 7 that set up along the terminal surface circumference interval of air supply pipe 1, and the terminal surface at air supply pipe 1 is connected to the one end of a plurality of arcs 7, and the other end is the free end, and when reducing of the internal diameter of reducing pipe 2, to axle center department compression arcs 7, arcs 7 are bent by pressure, and a plurality of arcs 7 enclose into the cone after bending.
The arc-shaped sheet 7 is made of stainless steel, after the stress disappears, the arc-shaped sheet 7 is restored to the original state, and the flow of air in the air supply pipe 1 and the variable-diameter pipe 2 is not influenced.
As a specific implementation manner of the embodiment of the present invention, please refer to fig. 4, a plurality of arc rods 8 are circumferentially disposed inside a sleeve 31, the radial directions of the plurality of arc rods 8 are coplanar with the radial direction of the sleeve 31, that is, a sector surrounded by the arc rods 8 is parallel to the radial direction of the sleeve 31, and the tops of the plurality of arc rods 8 face the rubber tube; the both ends of a plurality of arc poles 8 all with end cover 33 sliding connection, gasbag 32 aerifys the back, to the axle center pressure of rubber tube moving arc pole 8, the rubber tube is moved to arc pole 8 pressure, and a plurality of arc poles 8 that circumference set up press the rubber tube into the middle thin, thick fusiform in both ends, combine the air supply pipe 1 at rubber tube both ends, form venturi.
The arc-shaped rod 8 is made of elastic materials, and after the stress disappears, the arc-shaped rod 8 is restored to the original state, and the liquidity inside the rubber tube is guaranteed.
Referring to fig. 4, a rigid framework 9 is axially disposed inside the rubber tube, the rigid framework 9 encloses a cylindrical shape coaxial with the rubber tube to limit the minimum inner diameter of the rubber tube, the rubber tube continuously shrinks under pressure, and after shrinking to fit the inner wall of the rubber tube to the rigid framework 9, the rigid framework 9 prevents the rubber tube from shrinking continuously, so as to avoid blockage when the inner diameter of the rubber tube shrinks.
Referring to fig. 4, a nozzle is disposed at a connection end of the suction pipe 4 and the variable-diameter pipe 2 to uniformly spray the lubricant, and the lubricant is fully combined with air in the variable-diameter pipe 2 to form oil mist.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. Governing valve oil mist lubricating arrangement which characterized in that includes:
one end of the air supply pipe is used for being connected with the air pump, and the other end of the air supply pipe is used for being connected with the pneumatic regulating valve; the gas supply pipe is provided with a plurality of variable-diameter pipes;
the reducing mechanism is arranged on the variable-diameter pipe and used for changing the inner diameter of the variable-diameter pipe so as to change the air flow velocity in the variable-diameter pipe;
the suction pipes are provided with a plurality of suction pipes, one ends of the suction pipes are communicated with the side wall of the variable-diameter pipe, and the other ends of the suction pipes are connected with an oil tank used for loading lubricating oil and used for conveying the lubricating oil into the air supply pipe;
and the flowmeter is arranged on the suction pipe and used for metering the flow of the lubricating oil in the suction pipe.
2. The regulator valve mist lubrication apparatus as claimed in claim 1, wherein a plurality of said variable diameter pipes are connected in series to said air supply pipe, and air in said air supply pipe passes through said plurality of variable diameter pipes in sequence.
3. The regulator valve mist lubrication apparatus as claimed in claim 1, wherein a plurality of said variable diameter pipes are connected in parallel to said air supply pipe.
4. The regulator valve mist lubrication apparatus as claimed in claim 1, wherein said variable diameter tube comprises a rubber tube; both ends of the rubber tube are sleeved with the air supply tube; the both ends of rubber tube are equipped with and are used for locking the rubber tube with the retaining member of air supply pipe.
5. The regulator valve mist lubrication apparatus as claimed in claim 4, wherein said reducing mechanism comprises:
the sleeve is sleeved outside the rubber pipe, the inner wall of the sleeve and the outer wall of the rubber pipe are arranged at intervals, and the length of the sleeve is greater than that of the variable-diameter pipe;
the air bag is arranged between the sleeve and the rubber tube along the circumferential direction of the side wall of the sleeve;
an inflation member in communication with the air bag for inflating the air bag;
and the end covers are arranged at two ends of the sleeve and used for plugging the sleeve.
6. The regulator valve mist lubrication device as claimed in claim 4, wherein a connection of said air supply pipe to said rubber tube is provided with a tapered head for preventing a turbulent flow of air flowing from said air supply pipe to said rubber tube or from said rubber tube to said air supply pipe.
7. The regulator valve mist lubrication apparatus of claim 6, wherein said conical head includes a plurality of arcuate tabs circumferentially spaced along an end surface of said gas supply pipe, said plurality of arcuate tabs being resilient members.
8. The regulating valve oil mist lubrication device according to claim 5, wherein a plurality of arc-shaped rods are circumferentially arranged in the sleeve, the radial directions of the arc-shaped rods are coplanar with the radial direction of the sleeve, and the tops of the arc-shaped rods face the rubber pipe; the two ends of the arc-shaped rods are connected with the end covers in a sliding mode.
9. The regulator valve oil mist lubrication device according to any one of claims 4 to 8, wherein a rigid skeleton is provided inside the rubber tube in the axial direction for restricting a minimum inner diameter of the rubber tube and preventing clogging when the inner diameter of the rubber tube is reduced.
10. The regulator valve mist lubrication apparatus as claimed in claim 1, wherein a spray head is provided at a connection end of said suction pipe with said variable diameter pipe to uniformly spray said lubricating oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010468877.9A CN111594738A (en) | 2020-05-28 | 2020-05-28 | Regulating valve oil mist lubricating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010468877.9A CN111594738A (en) | 2020-05-28 | 2020-05-28 | Regulating valve oil mist lubricating device |
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| CN111594738A true CN111594738A (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010468877.9A Pending CN111594738A (en) | 2020-05-28 | 2020-05-28 | Regulating valve oil mist lubricating device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113058870A (en) * | 2021-03-19 | 2021-07-02 | 西安科技大学 | Food grader based on computer vision |
| CN114288828A (en) * | 2022-01-06 | 2022-04-08 | 浙江天地环保科技股份有限公司 | Aperture regulator for flow equalizing sieve plate |
| CN115235103A (en) * | 2022-07-28 | 2022-10-25 | 科希曼电器有限公司 | Steam heat pump air outlet adjusting system and method for dehumidifier |
-
2020
- 2020-05-28 CN CN202010468877.9A patent/CN111594738A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113058870A (en) * | 2021-03-19 | 2021-07-02 | 西安科技大学 | Food grader based on computer vision |
| CN114288828A (en) * | 2022-01-06 | 2022-04-08 | 浙江天地环保科技股份有限公司 | Aperture regulator for flow equalizing sieve plate |
| CN115235103A (en) * | 2022-07-28 | 2022-10-25 | 科希曼电器有限公司 | Steam heat pump air outlet adjusting system and method for dehumidifier |
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