KR200324390Y1 - stand-alone lubricator using air pressure - Google Patents

Abstract

An air storage tank unit (A) for filling air, an air pressure adjusting unit (B) for depressurizing high pressure air filled in the air storage tank and always applying a constant pressure to the piston, and a grease discharge amount Consisting of a grease tank (C) for adjusting

The manufacturing cost is low, there is no breakdown caused by moisture when installed outdoors, and there are no harmful substances to prevent environmental pollution, the grease can be recharged, and there is an extremely excellent effect such as preventing the failure of the rotary drive unit and reducing the cost.

Description

Stand-alone lubricator using air pressure

The present invention relates to a single point lubricator used to regularly and automatically supply grease to a single point rotary drive of an industrial machine including an unloader.

In general, the feeding device of various industrial machines, including the boom tension bar of the product dock unloading machine and the all-weather dock OHC lifting device, is far from the automatic concentrating grease device, and it is a link, and the grease is fed to the refracted part alone have.

The conventional single point lubrication device used for this purpose is provided with a gas generator and a piston consisting of a battery, a carbon electrode plate, and an electrolyte on the inner side of a cylindrical pressure vessel, in which a predetermined grease storage chamber is provided. An electronic actuator for controlling operation is additionally installed so that a predetermined amount of gas is generated, and the piston is lowered by the generated gas pressure, so that grease in the grease storage chamber is supplied to the rotation drive unit at every set cycle. The gas generator operating cycle at this time is configured to be adjusted through an electronic device composed of a timer resistance or the like.

However, such a conventional single point lubrication device has a very high supply price due to the additional installation of an electronic device for operation control of a gas generator using an electrolyte, and a battery or a hazardous substance that forms a gas generator when disposed of and disposed of after use. It is the main cause of serious environmental pollution due to electrolytes, electronic devices, and harmful gases remaining in the container.In addition, when the outdoor device is installed like the boom tension bar of the unloading machine, moisture or dust penetrates into the container and the electronic device loses its function. In this case, there is a problem in that the grease supply is impossible at a proper time, which causes a fatal damage to the driving part, and there is a disadvantage that cannot be recycled.

The present invention is to solve the conventional problems as described above, using air without the concern of environmental pollution, there is no fear of failure even when installed outdoors, filling the air at a constant pressure in the air tank, air filled in the tank In order to always push the grease to a certain pressure, press the piston at the top of the grease storage chamber through the air pressure regulator and set the pressure arbitrarily as required. Its purpose is to provide a fixed amount and to supply a refillable lubricator device after use of grease.

1a is a cross-sectional view of the present invention,

1b is a cross-sectional view of the grease flow control valve and the peripheral components,

Figure 1c is a plan view of the safety valve structure and the pressure gauge,

1D is an exemplary view of a bottom view of the discharge period display;

2 is a detailed cross-sectional view of the air pressure adjusting unit of the present invention,

3A is a cross-sectional view illustrating a pressure regulating valve open state while air pressure is introduced into the low pressure portion;

3b is a sectional view of a safety valve structure and a pressure gauge,

4 is a cross-sectional view illustrating a closed state of the pressure regulating valve after the air pressure flows into the low pressure portion;

5a is an explanatory diagram of an installation state when recycling grease,

Figure 5b is a detailed cross-sectional view of the filling port,

5C is a detailed sectional view of the grease flow control valve.

Explanation of symbols on the main parts of the drawings

1: Filling hole 2: Relief valve

2a: regulating valve 3: pressure gauge

4: Adjustment screw 5: Thread

6: air pressure passage 7: air tank

8: spring 9: valve rod

20: upper block 21: lower block

23: diaphragm 24: pressure regulating valve

25: bolt 26: pressure spring

27: adjusting screw 28: thread

29: high pressure chamber 30: low pressure chamber

31: air pressure passage 32: thread

51: nipple 52: adjusting screw

53: stopper 54: piston

55: rubber ring 56: discharge cycle display

57: thread 58: grease tank

59: grease discharge passage 71: filler pack

A: air storage tank part B: air pressure adjusting part

C: Grease Tank Part

The device of the present invention for achieving the above object,

An air storage tank unit (A) for filling air, an air pressure adjusting unit (B) for depressurizing high pressure air filled in the air storage tank and always applying a constant pressure to the piston, and a grease discharge amount Made of grease tank part (C) to adjust the

The air storage tank portion A serves to provide pressure for discharging grease, at least an air tank 7 for storing air, and an air filling port 1 for inputting air into the air tank 7. And an air discharge port for outputting air from the air tank (7),

The pressure adjusting unit (B) serves to convert the high pressure air from the air storage tank unit (A) into low pressure constant air to form a desired constant discharge pressure on the piston (54) of the grease tank unit (C). The upper block 20, the lower block 21, and the diaphragm 23 are formed again, and the upper block 20 includes a partition wall formed to form a boundary between the high pressure chamber 29 and the low pressure chamber 30, and the partition wall. The lower block 21 includes a pressure regulating valve 24 for opening and closing the flow path hole according to the movement of the diaphragm 23, and air received by the diaphragm 23 from the low pressure chamber. A pressure spring 26 provided to impart an elastic force in a direction that resists the direction of pressure, an adjustment screw 27 for adjusting a pushing force of the pressure spring 26, and an air pressure passage 31 connected to the low pressure chamber Consists of,

The grease storage part (C) is for supplying an appropriate amount of grease according to the purpose of use by applying pressure to the grease through the piston by air pressure, and at least a grease tank 58 connected to the air pressure passage 31. And a piston 54 fitted and fitted to the inner circumference of the grease tank 58, and a grease discharge port provided on the opposite side of the air pressure passage 31 with the piston 54 as a boundary.

Here, according to a preferred embodiment, the thread 5 is formed in the case of the air outlet side of the air storage tank unit A, and the thread 32 is formed in the case of the air pressure adjusting unit B corresponding thereto. And preferably configured to be separated.

In addition, the thread 28 is formed in the case of the air pressure passage 31 side of the air pressure adjusting part B, and the thread 57 is formed in the case of the grease tank part C corresponding thereto. It is preferable to configure as possible.

According to a preferred embodiment, in the air storage tank part A, in particular, the filling port 1 is adapted to the spring and the elastic force of the spring so that the air pressure can be released when the grease is recharged in the grease tank 58. It is preferable to be configured by the valve rod 9 of the structure that is normally closed by the closed and open when an external force is applied.

In particular, it is preferable to further comprise an adjustment screw (4) for adjusting the air flow rate of the air discharge port, furthermore, the adjustment screw (4) is provided with an air pressure passage (6) in the center, fastened to the nipple It should be configured to be coupled to the air outlet.

In addition, the air tank 7 has a relief valve 2 having a structure that is pushed open by air pressure in order to prevent rupture due to high pressure, and a spring 8 which imparts elastic force in a direction opposite to the direction of the air pressure. And a safety valve structure composed of an adjustment screw 2a for adjusting the elastic force of the spring 8, so that the pressure can be arbitrarily set, and configured to be opened when the air is overcharged.

In addition, the air tank (7) is preferably configured to further include a pressure gauge (3) to display the residual air pressure during use can be confirmed.

Further, according to a preferred embodiment, in the grease tank portion C, of course, the rubber ring 55 is provided on the outer circumference of the piston, and is preferably configured to form an airtight structure.

In particular, it is preferable to further include an adjustment screw 52 for adjusting the grease flow rate of the grease discharge port, and furthermore, the adjustment screw 52 is provided with a grease discharge passage 59 in the center, similarly to the adjustment screw 4. It is preferably provided to be configured to be coupled to the grease discharge port while being fastened to the nipple (51).

In addition, in order to easily set the grease discharge cycle, the grease discharge cycle display 56 is preferably displayed on one side of the nipple 51 based on the amount of grease discharge according to the rotation angle of the adjustment screw 52. .

In addition, when not in use for a long time, it is also preferable to have a stopper 59 that can block the grease discharge passage.

In addition, when the grease is recharged, the grease discharge nipple 51 is removed and a screw thread that can be coupled with the hose of the filler pack 71 is configured.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

A part A in FIG. 1A shows the air storage tank part A. FIG. An upper portion of the cylindrical air tank 7 is provided with a filling port 1 for filling air and a safety valve structure for preventing overcharge of air. As the safety valve structure, as shown in FIG. 1C, a relief valve 2 is provided, and an adjustment valve 2a for adjusting the air filling pressure is provided above the relief valve 2. One side of the relief valve 2 is provided with a pressure gauge 3 for displaying the air pressure and the remaining amount.

An air pressure adjusting screw 4 is installed in the lower part of the air tank 7 to prevent the air pressure from being temporarily acted on the air pressure adjusting part B by a high pressure, and is connected to the air pressure adjusting part B. Thread 5 is formed.

1A and 2B are cross-sectional views illustrating the air pressure adjusting unit B. A diaphragm 23 having an air pressure adjusting valve 24 is inserted between the lower block 21 and the upper block 20. The fixing bolt 25 is fastened.

On the bottom of the lower block 21, a pressure spring 26 and a pressure setting adjusting screw 27 are combined to adjust the air pressure acting on the piston 54 installed above the grease tank 58, and is combined with the grease storage tank. Threads 28 are formed for this purpose.

In addition, at one side of the upper block 20 and the lower block 21, a passage 31 through which the air pressure reduced in the low pressure chamber 30 moves to the upper portion of the grease storage tank piston 54 is formed.

FIG. 1A is a cross-sectional view of the grease tank C. Grease is filled in the grease tank 58, and grease discharge is adjusted in the lower part of the grease tank 58 as shown in FIG. 1B. The nipple 51 and the adjustment screw 52 forming the passage 59 are coupled to each other, and a grease discharge period display 56 is displayed on one side of the nipple 51 as shown in FIG. 1D, and FIG. The stopper 53 is closed as well.

The upper part of the grease storage tank 58 is inserted with a piston 54 for pushing the grease by the air pressure introduced from the low pressure chamber 30 of the air pressure adjusting part B, and prevents leakage of pressure outside the piston. In order to combine the rubber ring 55.

The air storage tank part A and the air pressure adjusting part B of FIG. 1A are coupled by a thread 5 and a thread 32, and the air pressure adjusting part B and the grease tank part C are threaded ( 28) and the thread (57). When assembled, the configuration of the device of the present invention is completed.

Hereinafter, with reference to the accompanying drawings, the operation of the device of the present invention having the configuration as described above will be described as follows.

When air is injected through the air filling port 1 while the grease discharge amount adjusting screw 52 is closed as in FIG. 3A, the pressure in the air tank 7 increases. Of course, when the pressure exceeds the preset pressure by the air pressure adjusting screw (2a) of the safety valve structure as shown in Figure 3b, the pressure does not increase any more, the pressure of the relief valve spring (8) is overcome, and the relief valve (2) Open, air leaks to the outside. Thus, the pressure no longer rises, preventing the air tank 7 from breaking.

At the time of feeding, when the grease discharge amount adjusting screw 52 is opened in accordance with a desired setting cycle in FIG. 3A, and this part is attached to the feeding part, the air pressure in the air tank 7 is changed to the air flow adjusting screw 4 and the air. It is moved to the high pressure chamber 29 through the pressure passage 6. The air pressure of the high pressure chamber 29 passes through the gap of the pressure regulating valve 24 and flows into the low pressure chamber 30. The air pressure in the low pressure chamber 30 introduced earlier than the discharge amount of grease depresses the elastic force of the pressure spring 26 and pushes the diaphragm 23 downward. Then, the pressure regulating valve 24 is closed as shown in FIG.

In FIG. 4, the air pressure in the high pressure chamber 29 no longer flows into the low pressure chamber 30, and the air pressure in the low pressure chamber 30 continues to the upper portion of the piston 54 through the air pressure passage 31. Pressure is applied. Therefore, grease in the grease tank 58 is discharged through the grease discharge passage 59 formed in the adjusting screw 52.

When grease is discharged by the above action, the pressure in the low pressure chamber 30 is lowered. Therefore, the elastic force of the pressure spring 26 presses the diaphragm 23 upwards, and the pressure regulating valve 24 is opened again, and the pressure in the high pressure chamber 29 flows back into the low pressure chamber 30 again.

As described above, the pressure regulating valve 24 is repeatedly opened and closed in accordance with the discharge of the grease. Therefore, grease is always discharged only at a pressure within a certain range.

The magnitude of the air pressure applied to the piston 54 is determined by the elastic force adjusting screw 27 for adjusting the elastic force of the pressure spring 26 for pushing the diaphragm upwards, and in particular, the discharge amount of the grease is low pressure chamber ( The air pressure in 30) is determined in proportion to the force pushing the piston 54 through the air pressure passage 31 and the opening degree of the grease discharge amount adjusting screw 52.

In this way, when the grease is completely discharged at a constant pressure, the grease must be refilled as shown in Fig. 5A. At this time, the valve rod 9 of the air filling port 1 having the structure as shown in FIG. 5B is pressed to open the air storage tank part A to the atmosphere. Then, the pressure regulating valve 24 is opened by the force of the pressure spring 26, and the high pressure chamber 29 and the low pressure chamber 30 communicate with each other and at the same time become atmospheric pressure. Therefore, the pressure applied to the piston 54 is eliminated.

In this state, the nipple 51 may be removed, and instead, the hose of the grease filler pack 71 may be connected to recharge the grease.

Therefore, according to the present invention, since the air pressure and the air pressure regulator are used, the manufacturing cost is lower than that of the gas pressure generating device by the electronic device which is a conventional single point paper feeding device.

In addition, since there is no failure caused by moisture when installed outdoors, it is possible to prevent equipment failure due to inability to grease.

In addition, since air is used, there are no harmful substances that pollute the environment such as electronic devices, electrolytes, and batteries, thereby preventing environmental pollution.

In addition, grease recharging technology is applied, so lubrication equipment can be recycled, resulting in low maintenance costs.

Therefore, there is an extremely excellent effect, such as failure prevention and cost reduction of the rotary drive unit of the industrial machine including the unloading machine.

Claims (3)

An air storage tank unit (A) for filling air, an air pressure adjusting unit (B) for depressurizing high pressure air filled in the air storage tank and always applying a constant pressure to the piston, and a grease discharge amount Made of grease tank part (C) to adjust the The air storage tank unit A has at least an air tank 7 for storing air, an air inlet 1 for inputting air into the air tank 7, and an air tank 7 for outputting air from the air tank 7. Configured to have an air outlet, The pressure adjusting unit B is formed of an upper block 20, a lower block 21, and a diaphragm 23, and the upper block 20 is formed to form a boundary between the high pressure chamber 29 and the low pressure chamber 30. A partition wall and a flow path hole formed through the partition wall, wherein the lower block 21 includes a pressure regulating valve 24 for opening and closing the flow path hole according to the movement of the partition 23, and the partition 23. A pressure spring 26 provided to impart an elastic force in a direction that resists the direction of air pressure received from the low pressure chamber, an adjustment screw 27 for adjusting a pushing force of the pressure spring 26, and connected to the low pressure chamber. Composed of air pressure passage (31), The grease storage part (C) includes a grease tank (58) connected to the air pressure passage (31), a piston (54) fitted and fitted to the inner circumference of the grease tank (58), and the piston (54). The sole lubrication device using pneumatic pressure, characterized in that the grease discharge port is provided on the opposite side of the air pressure passage 31, and the adjustment screw 52 for adjusting the amount of grease discharged from the Igristo outlet. The method of claim 1, The thread 5 is formed in the case of the air outlet port of the air storage tank A, and the thread 32 is formed in the case of the air pressure adjusting part B corresponding thereto. A thread 28 is formed on the case of the air pressure passage 31 side of the air pressure adjusting part B, and a thread 57 is formed on the case of the grease tank part C corresponding thereto to be fastened and detached. Single lubricator using pneumatic, characterized in that configured. The method according to claim 1 or 2, Or further comprising an adjusting screw 4 for adjusting the air flow rate of the air discharge port, A sole lubrication device using pneumatic pressure, characterized in that it further comprises an adjustment screw 52 for adjusting the grease flow rate of the grease discharge port.