CN206206980U - Pneumatic lubrication gasoline pump - Google Patents

Abstract

A kind of pneumatic lubrication gasoline pump, including protective cover, reversal valve, silencer, fender, push rod, pneumatic operated valve, sealing ring, cylinder head, adapter, cylinder, piston, gland, pump seat, piston rod, working cylinder connect cylinder, bearing pin, extension bar, needle, spring, hollow piston, working cylinder, valve element, valve seat, gland, imported oil, oil-out, air inlet, air inlet pipe, muffler.Pneumatic operated valve lower end connects cylinder, and reversal valve is installed in cylinder head, and reversal valve adjacency sets fender, and silencer is mounted in pneumatic operated valve top；One protective cover is set on cylinder, and cylinder adjacency is provided with adapter, a piston is provided with cylinder, pump seat is installed in cylinder lower section, and pump seat lower end sets working cylinder and connects cylinder, and working cylinder connects cylinder upper end and communicated with oil-out, and working cylinder connects cylinder lower end centre position installment work cylinder；Push rod passes through reversal valve, push rod lower end connection piston rod, piston-rod lower end to set extension bar, extension bar lower end connection hollow piston.

Description

Pneumatic lubrication oil pump

Technical field:

The utility model relates to a refueling pump, in particular to a pneumatic lubricating refueling pump. Oil achieves the purpose of refueling.

Background technique:

Pneumatic dry oil pump is a reciprocating plunger pump driven by compressed air. It uses the difference in area between the upper and lower ends of the piston to obtain high-pressure fluid output. The gas end driven by the piston has a low pressure and large area, and the liquid piston end has a small area to obtain high pressure. Pneumatic lubrication Oil pump is suitable for large-scale dry oil centralized lubrication system, as an oil supply equipment that adopts a centralized filling and replenishing device for the oil storage of many lubrication stations, and can also directly send grease to each lubrication point by pressure. Under the condition of insufficient air source, it is very suitable for occasions where electric lubrication pumps are not suitable and have explosion-proof requirements. Due to its high pressure, large flow rate and stable action, it is beneficial to expand the scope of concentrated fat replenishment, and can also greatly shorten the time required for fat replenishment. The market is in urgent need of such a product.

Invention content:

Aiming at the demand of the market, we provide a pneumatic lubricating oil pump, including protective cover, reversing valve, muffler, fender, ejector rod, pneumatic valve, sealing ring, cylinder head, connecting pipe, cylinder, piston, gland, pump seat, Piston rod, working cylinder connecting cylinder, pin shaft, connecting rod, valve needle, spring, hollow piston, working cylinder, valve core, valve seat, pressure sleeve, inlet oil, oil outlet, air inlet, inlet pipe, return air pipe .

The technical solution adopted by the utility model to solve the technical problem is: the lower end of the pneumatic valve is connected to the cylinder, the reversing valve is installed on the cylinder head, and the fender is arranged beside the reversing valve. The fender corresponds to the center hole of the reversing valve and is close to the reversing There are three holes at the bottom of the valve corresponding to the three holes a, b, and c on the cylinder head. The muffler is installed above the pneumatic valve, and the two air outlets on the muffler are correspondingly connected to the two air outlets J1 and J2 on the pneumatic valve housing; There is a protective cover on the upper side of the cylinder, and there is a connecting pipe next to the cylinder. The upper end of the connecting pipe is connected to the pneumatic valve, and the lower end of the connecting pipe is connected with the inside of the cylinder. The connecting pipe is made into the shape of "and". The cross-sectional view is in the shape of "I". The working cylinder is installed in the middle of the lower end of the pump base, and the upper end of the working cylinder is connected to the oil outlet. The diameter of the cylinder connected to the cylinder is the same as that of the working cylinder; the ejector rod passes through the reversing valve, the lower end of the ejector rod is connected to the piston rod, the piston rod passes through the cylinder and the pump seat, the lower end of the piston rod is provided with a connecting rod, and the lower end of the connecting rod is connected to the hollow piston. The diameter is smaller than the diameter of the piston rod, the diameter of the piston rod is smaller than the diameter of the extension rod, the diameter of the extension rod is smaller than the diameter of the hollow piston, and the diameter of the hollow piston is smaller than the diameter of the piston. It is six times the diameter of the hollow piston; the upper end of the hollow piston is equipped with a valve needle and spring, and the valve needle and spring are installed in the bottom of the post. The lower part of the hollow piston is equipped with a valve core and a valve seat. Gas assembly, air intake assembly includes air intake, intake pipe, return air pipe.

The utility model has beneficial effects: it has excellent explosion-proof performance, small size, light weight, large displacement, simple installation and convenient maintenance.

Description of drawings:

Fig. 1 is the overall structural representation of the utility model;

Fig. 2 is that the B figure of the utility model is a schematic diagram of the air intake assembly;

Fig. 3 is the schematic diagram of the pneumatic valve of the present utility model

Fig. 4 is the reversing valve schematic diagram of the present utility model

Fig. 5 is the schematic diagram of the principle of the utility model;

In the figure, 1. Protective cover, 2. Reversing valve, 3. Muffler, 4. Fender, 5. Push rod, 6. Pneumatic valve, 7. Seal ring, 8. Cylinder head, 9. Connector, 10. Cylinder , 11, piston, 12, gland, 13, pump seat, 14, piston rod, 15, working cylinder connecting cylinder, 16, pin shaft, 17, connecting rod, 18, valve needle, 19, spring, 20, hollow piston , 21, working cylinder, 22, spool, 23, valve seat, 24, pressure sleeve, 25, imported oil, 26, oil outlet, 27, air inlet, 28, air intake pipe, 29, air return pipe.

detailed description:

As shown in the drawings, the utility model product includes a protective cover 1, a reversing valve 2, a muffler 3, a fender 4, a push rod 5, a pneumatic valve 6, a sealing ring 7, a cylinder head 8, a connecting pipe 9, a cylinder 10, and a piston 11. Gland 12, pump seat 13, piston rod 14, working cylinder connecting cylinder 15, pin shaft 16, connecting rod 17, valve needle 18, spring 19, hollow piston 20, working cylinder 21, valve core 22, valve seat 23 , Pressure sleeve 24, inlet oil 25, oil outlet 26, air inlet 27, air intake pipe 28, air return pipe 29. The product is mainly composed of two parts: pneumatic device and oil pressure device.

The pneumatic part includes a cylinder 10, a reversing valve 2, a pneumatic valve 6, a muffler 3 and a shield 1. The cylinder 10 is mainly composed of a cylinder head 8, a connecting pipe 9, a piston 11, a gland 12, a pump seat 13, a piston rod 14, a push rod 5 and a fender 4. A transmission device that converts air pressure into mechanical energy. The oil pressure part mainly consists of a piston rod 14, a connecting pipe 9, a connecting rod 17, a valve needle 18, a hollow piston 20, a working cylinder 21, a valve core 22, a valve seat 23, an oil inlet 25, and an oil outlet 26.

The lower end of the reversing valve 2 is connected to the pneumatic valve 6, and the fender 4 is arranged beside the reversing valve 2, and the lower end of the pneumatic valve 6 is connected to the cylinder 10, and the reversing valve 2 is installed on the cylinder head 8, and the fender 4 on the top rod of the cylinder piston is just in line with the reversing pad. Corresponding to the center hole of the reversing valve 2, you can hit the valve stem part in the reversing valve 2 with the fender 4 up and down to open the air path. There are three holes near the bottom of the reversing valve 2 corresponding to the three holes a, b and c on the cylinder head 8 The muffler 3 is installed above the pneumatic valve 6, and the two air outlets on the muffler 3 that communicate with the atmosphere are connected with the two air outlets J1 and J2 on the pneumatic valve housing; the pneumatic valve 6 is combined with the reversing valve 2 The air intake pipe, the air return pipe and the cylinder head 8 are connected to each other, and the piston push rod fender 4 on the cylinder reciprocates up and down in a pneumatic form to realize the change of the direction of the air flow for reversing work. A protective cover 1 is arranged on the cylinder 10, and the protective cover 1 ensures The internal reversing valve 2 and the pneumatic valve 6 are safe. There is a connecting pipe 9 next to the cylinder 10. The upper end of the connecting pipe 9 is connected to the pneumatic valve 6. The lower end of the connecting pipe 9 communicates with the inside of the cylinder 10. There is a piston 11 inside the cylinder 10. The piston 11 moves Push the compressed air to generate air pressure. The upper end of the connecting pipe 9 is provided with a cylinder head 8, and the lower end of the cylinder is provided with a gland 12. The cylinder head 8 and the gland 12 control the air flow inside the cylinder 10. The connecting pipe 9 is made in the shape of "and" for easy connection. Connecting pipe 9 ensures the smooth flow of air between cylinder 10 and pneumatic valve 6; pump seat 13 is installed below the cylinder, and the cross-sectional view of pump seat 13 is in the shape of "I", which is convenient for the installation of pump seat 13 upper parts.

The ejector rod 5 passes through the reversing valve 2, the lower end of the ejector rod 5 is connected to the piston rod 14, the piston rod 14 passes through the cylinder 10 and the pump seat 13, and a seal ring 7 is provided at the contact between the piston rod 14 and the cylinder 10 and the pump seat 13, and the seal The ring 7 ensures that the piston rod 14 is movable and sealed; the lower end of the piston rod 14 is provided with a connecting rod 17, and the joint between the piston rod 14 and the connecting rod 17 is provided with a pin shaft 16, and the pin shaft 16 is firmly connected to the two rods, and the lower end of the connecting rod 17 is connected with the hollow piston 20, and the top The diameter of the rod 5 is smaller than the diameter of the piston rod 14, the diameter of the piston rod 14 is smaller than the diameter of the connecting rod 17, the diameter of the connecting rod 17 is smaller than the diameter of the hollow piston 20, the diameter of the hollow piston 20 is smaller than the diameter of the piston 11, the ejector rod 5, the piston rod 14, the connecting rod 17 1. The hollow piston 20 is set on the center line of the product. The output pressure of the liquid depends on the area ratio of the two ends of the piston 11 and the hollow piston 20 and the pressure of the driving gas. The diameter of the piston 11 is six times the diameter of the hollow piston 20, and the area difference between the two pistons The larger the specific pressure, the larger the oil outlet, forming a large displacement and high pressure oil output.

The middle position of the lower end of the pump base 13 is connected to the working cylinder 15 in the dark, and the upper end of the working cylinder 15 is connected to the oil outlet 26. Connect cylinder 15 and working cylinder 21 diameters are the same, there are piston rod 14, connecting rod 17, hollow piston 20 movable in working cylinder connecting cylinder 15, and hollow piston 20 mainly moves in working cylinder 21, impels piston 11 and hollow piston 20 to produce ratio. Pressure, under the action of the specific pressure of the piston 11 and the hollow piston 20, the oil is released; the upper end of the hollow piston 20 is provided with a valve needle 18 and a spring 19, and the valve needle 18 and the spring 19 are installed in the bottom of the connecting rod 17, so that the hollow piston 20 is conveniently operated by the spring. The lower part reciprocates up and down, sucking the lubricating grease in the oil tank into the pump cavity from the inlet oil 25 and discharging it from the oil outlet 26. The lower part of the hollow piston 20 is provided with a valve core 22 and a valve seat 23. The valve core 22 and valve seat 23 By adjusting the air pressure, the output pressure and flow of the pump can be adjusted by adjusting the air supply pressure. Due to the up and down movement of the piston rod 14, the hollow piston 20 of the oil pressure part also reciprocates up and down, and a valve core 22 is installed at its bottom. When the piston 11 is pulled up, a vacuum is generated at the lower chamber A, and the grease around the oil inlet 25 is sucked in. The bottom of the valve core 22 is equipped with a spring 19 to make it better close to the sealing valve seat 23. When the piston 11 is pressed down, the grease that has been sucked in from the inner cavity of the hollow piston 20 pushes the valve needle 18 at the same time, passes through the connecting rod 17 and the working cylinder 21 to form a sleeve cavity, and presses to the oil outlet 26, so that , it reciprocates up and down with the cylinder piston 11, and at the same time drives the cylinder hollow piston 20 to move, so as to achieve the purpose of oil absorption and pressure oil. A pressure sleeve 24 is arranged at the lower end of the hollow piston 20, and an air intake assembly is installed in the pressure sleeve 24. The air intake assembly includes an air inlet 27, an air intake pipe 28, and a return air pipe 29, so that the air flow is unobstructed, and the oil absorption is large, and it is convenient to use.

working principle:

Pneumatic valves are Q ₁ Q ₂ , as shown in Figure 3, a, b, and c are correspondingly connected to the cylinder head: a- communicates with the cylinder connection T, b- connects with the air source inlet, c- connects with the cylinder piston Cavities are connected, N- is connected with S ₂ on the reversing valve, J ₁ and J ₂ are connected with the two air outlets of the muffler, when the right chamber of Q1Q2 in the valve is unloaded, the piston in the valve is due to the action of the spring, the left chamber is closed, and the right chamber is opened; If the air enters the N port and overcomes the force of the spring, the piston is pushed to the left limit position, then the right chamber is closed, and the left chamber is opened to change direction.

The reversing valve is shown in Figure 3, S ₁ is the air inlet, S ₂ is the air return port, S ₀ is the air passage in the valve, and S ₃ is the exhaust port. When the cylinder piston moves upward, the valve stem on the reversing valve is hit by the fender 4 , push open the valve, open S ₁ -→ S ₂ ; when the cylinder piston goes down, the lower stem of the reversing valve is hit by fender 4, push open the valve, open S ₂ -→ S ₃ .

The air source is compressed air marked as P ₀ , P ₀ -→K ₁ is the air inlet-→b-→Q ₁ in a-→T-→e-→the lower chamber of the piston pushes the piston ↑-the air in the upper chamber of the piston- →C-→J ₂ -→muffler-→atmosphere in C-→Q ₂ ; due to the upward movement of the piston, S ₁ -→S ₂ at this time, P ₀ -→K ₁ -→d-→S ₁ -→S ₂ -→N -→Q spool is pushed to the left end, the left chamber is opened, and the right chamber is closed to achieve the purpose of reversing, b-→a is closed, b-→c is opened.

P ₀ -→K ₁ -→b-→c-→Push to the piston ↓Air in the lower chamber of the piston-→e-→T-→a-→J ₁ -→muffler-→atmosphere. As the piston goes down to the right position, the lower valve stem of the reversing valve is hit, and S ₂ -→S ₀ -→S ₃ is opened, and the upper valve stem of the reversing valve has returned to S ₁ -→S ₂ due to the action of the spring. At this time, Q-→N -→S ₂ -→S ₃ -→atmosphere, the right chamber of the pneumatic valve is unloaded, and the left end is pushed to the left end due to the action of the spring, thereby closing the left chamber and opening the right chamber, thus completing the up and down reciprocating movement of the cylinder once.

Claims (4)

1. A pneumatic lubricating oil pump, including a protective cover, a reversing valve, a muffler, a fender, a push rod, a pneumatic valve, a sealing ring, a cylinder head, a connecting pipe, a cylinder, a piston, a gland, a pump seat, a piston rod, and a working Cylinder-to-cylinder, pin shaft, extension rod, valve needle, spring, hollow piston, working cylinder, valve core, valve seat, pressure sleeve, inlet oil, oil outlet, air inlet, air inlet pipe, and air return pipe, characterized in that : The lower end of the pneumatic valve is connected to the cylinder, and the reversing valve is installed on the cylinder head, and a fender is set beside the reversing valve. c The three holes are connected correspondingly, the muffler is installed above the pneumatic valve, and the two air outlets on the muffler are connected with the two air outlets J1 and J2 on the pneumatic valve housing; The upper end is connected to the pneumatic valve, and the lower end of the connecting pipe communicates with the inside of the cylinder; there is a piston in the cylinder, a pump base is installed under the cylinder, and a working cylinder is installed in the middle of the lower end of the pump base. The working cylinder is installed at the lower end of the cylinder; the ejector rod passes through the reversing valve, the lower end of the ejector rod is connected to the piston rod, the piston rod passes through the cylinder and the pump seat, the lower end of the piston rod is provided with a connecting rod, and the lower end of the connecting rod is connected to the hollow piston; the upper end of the hollow piston is provided with a valve needle And the spring, the valve needle and the spring are installed in the bottom of the connecting rod. The lower part of the hollow piston is provided with a valve core and a valve seat. The lower end of the hollow piston is provided with a pressure sleeve, and the air intake assembly is installed in the pressure sleeve. 2. A pneumatic lubricating oil pump according to claim 1, characterized in that: said oil outlet is located at the lower part of the pump base. 3. A pneumatic lubricating oil pump according to claim 1, characterized in that: the diameter of the connecting cylinder of the working cylinder is the same as that of the working cylinder. 4. A pneumatic lubrication pump according to claim 1, characterized in that: the The diameter of the ejector rod is smaller than the diameter of the piston rod, the diameter of the piston rod is smaller than the diameter of the extension rod, the diameter of the extension rod is smaller than the diameter of the hollow piston, the diameter of the hollow piston is smaller than the diameter of the piston, and the ejector rod, piston rod, extension rod, and hollow piston are arranged on the center line of the product , the diameter of the piston is six times the diameter of the hollow piston.