CN210769303U - Integrated double-screw air compressor - Google Patents

Abstract

The utility model discloses an integrated form double screw air compressor machine, the both ends of main screw rod and auxiliary screw rod are provided with the pivot respectively, and main screw rod and auxiliary screw rod are located the casing, and its pivot is respectively through bearing movable mounting in the casing, end cover fixed mounting is on the casing, and this end cover is put in the pivot outside to the lid is put in the bearing outside, the oil blanket card is put in the end cover, and the pivot outside is put to the cover, motor fixed mounting is on the casing, and the output shaft of motor passes through the shaft coupling to be connected with the pivot transmission of main screw rod one end, is provided with the gear respectively on the pivot of another tip of main screw rod and auxiliary screw rod, and the gear of main screw rod meshes with the gear of auxiliary screw rod mutually, has seted up the air inlet on the preceding upper portion of: the structure of the air compressor is simplified, the manufacturing cost is reduced, the occupied space is reduced, and the air compressor is very convenient to assemble, carry, overhaul and the like.

Description

Integrated double-screw air compressor

Technical Field

The utility model relates to a technical field of air compressor machine, the more specifically technical field who relates to double screw air compressor machine that says so.

Background

The double-screw air compressor is a double-shaft positive displacement rotary air compressor, it has high operation reliability and efficiency, the double-screw air compressor host computer is simple in construction, there is little wearing parts, therefore the screw host computer operates reliably, have long performance life, and easy to operate and maintain, have the very good dynamic balance characteristic at the same time, it does not have unbalanced inertia force itself, very steady under the high-speed running state, therefore, the air compression station does not need to make the basis specially just to put into use, and small, light in weight, it is very convenient to use, because the screw compressor has the characteristic of forcing the gas transmission, the volume flow is hardly influenced by the discharge pressure, in addition the screw compressor still has low noise and low vibration and high advantage of compressed air quality. However, the conventional double-screw air compressor has the following defects: firstly, the integration level is low, the structure is complex, the assembly is difficult, the manufacturing cost is high, the occupied space is large, and the operations such as assembly, carrying, maintenance and the like are inconvenient; secondly, the cooling effect on the compressed air and the air compressor oil is not very ideal, and the normal and stable operation of the air compressor can not be well ensured.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an integrated form double screw air compressor machine that has very high integrated level in order to solve above-mentioned not enough, the structure is retrencied, and occupation space is little, low in manufacturing cost to have fine cooling effect, can ensure the normal steady operation of air compressor machine.

The utility model discloses a solve above-mentioned technical problem and the technical solution who adopts as follows:

an integrated double-screw air compressor comprises a shell, a motor, a main screw, an auxiliary screw, an end cover, a bearing, an oil seal, an air filter, an air inlet valve, a safety valve, a one-way valve, an oil suction pipe, an oil cut-off valve, an air compressor oil filter, an oil-gas separation filter element, a minimum pressure valve, a ball valve, a cold air mechanism, an oil cooler and an air cooler, wherein pivots are respectively arranged at two ends of the main screw and the auxiliary screw, the main screw and the auxiliary screw are positioned in the shell, the pivots are respectively and movably arranged in the shell through the bearing, the end cover is fixedly arranged on the shell, is sleeved outside the pivots and covered outside the bearing, the oil seal is clamped in the end cover and sleeved outside the pivots, the motor is fixedly arranged on the shell, an output shaft of the motor is in transmission connection with the pivot at one end of the main screw through a coupler, gears are respectively arranged on the pivots at, the gear of the main screw is engaged with the gear of the auxiliary screw, the front upper part of the shell is provided with an air inlet, the air inlet valve is arranged at the air inlet of the shell, the air filter is communicated with the air inlet valve, the rear lower part of the shell is provided with an oil shell, the bottom wall of the shell positioned in the oil shell is provided with a discharge port, the discharge port of the shell is provided with a bent pipe, the bottom of the oil shell is provided with an oil discharge port, the upper part of the oil shell is provided with a separation cavity, the safety valve is communicated with the inside of the separation cavity, the oil-gas separation filter element is fixedly arranged in the separation cavity, the top wall of the separation cavity is provided with an air outlet communicated with the inside of the oil-gas separation filter element, the minimum pressure valve is arranged at the air outlet of the separation cavity, the lower part of the shell is respectively provided with an oil return port and an, the other end of the air compressor oil filter is communicated with an inlet of the one-way valve, one end of the oil cut-off valve is communicated with an oil inlet, one end of the air compressor oil filter is communicated with the other end of the oil cut-off valve, the cold air mechanism comprises a corrugated paper wet curtain, a frame, a water outlet pipe, a water storage tank, a water pump, a negative pressure fan and a drying agent shell, an air outlet is formed in the front of the frame, an air inlet is formed in the rear of the frame, the corrugated paper wet curtain is fixedly installed in the frame, the water outlet pipe is fixedly installed in the frame above the corrugated paper wet curtain, water outlet holes in rows are formed in the water outlet pipe, a water inlet of the water pump is communicated with the interior of the water storage tank, a water outlet of the water pump is communicated with the water outlet pipe through a pipeline, a water return port is formed in, the front part of the frame is provided with a fan cover, the negative pressure fan is fixedly arranged in the fan cover, a clamping groove with an opening at the upper part is arranged in the fan cover in front of the negative pressure fan, the drying agent shell is movably inserted in the clamping groove, the front wall and the rear wall of the drying agent shell are respectively provided with an air hole, the drying agent shell is filled with an active alumina particle ball, the bottom of the drying agent shell and the bottom of the clamping groove of the fan cover are respectively provided with a first drain hole and a second drain hole which correspond to each other, the air cooler comprises an air inlet cavity and an air outlet cavity, the air cooler is fixedly arranged at the front end part of the fan cover through the air inlet cavity and the air outlet cavity, a plate-shaped air passage for discharging is arranged between the air inlet cavity and the air outlet cavity, a first fin is respectively arranged between the adjacent plate-shaped air passages, the air inlet is, the ball valve is linked together with this gas vent, oil cooler is including support and cooling tube, the support is the mouth font, and support fixed mounting is on gas cooler's the chamber of admitting air and the chamber of giving vent to anger, the cooling tube is the form fixed mounting of buckling in the support, is provided with the second fin on the cooling tube, has into oil pipe at a tip intercommunication of cooling tube, and it is linked together with the oil drain port of oil shell to go into oil pipe, and another tip intercommunication at the cooling tube has an oil pipe, and another tip of oil pipe and air compressor oil filter is linked together.

Negative-pressure air fan includes fan motor and flabellum, fan motor passes through branch fixed mounting in the fan housing, flabellum fixed mounting is on fan motor's output shaft.

And a handle is arranged at the top of the drying agent shell.

The utility model adopts the beneficial effect that above-mentioned technical solution can reach is:

1. with parts integration such as casing, oil casing, separation chamber, oil-gas separation filter core and air compressor machine oil filter together to have very high integrated level, effectively simplified the structure of this air compressor machine, reduced manufacturing cost, reduced the space that occupies, the operation such as very convenient to assembly, transport and maintenance.

2. The cold air mechanism generates cold air to cool the compressed air flowing through the air cooler and the air compressor oil flowing through the oil cooler, so that a good cooling effect is achieved, and the normal and stable operation of the air compressor is ensured.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic top view of the main screw and the auxiliary screw of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 1 at A;

FIG. 4 is an enlarged view of a portion of FIG. 1 at B;

FIG. 5 is an enlarged view of a portion of FIG. 1 at C;

FIG. 6 is an enlarged partial schematic view of FIG. 1 at D;

FIG. 7 is an enlarged partial schematic view at E in FIG. 1;

FIG. 8 is a schematic left side view of the oil cooler of FIG. 1;

fig. 9 is a left side view schematically showing the structure of the air cooler in fig. 1.

Detailed Description

As shown in fig. 1, 2 and 3, the integrated twin-screw air compressor includes a casing 1, a motor 2, a main screw 3, an auxiliary screw 4, an end cover 5, a bearing 6, an oil seal 7, an air filter 8, an air inlet valve 9, a safety valve 10, a check valve 11, an oil suction pipe 12, an oil cut-off valve 13, an air compressor oil filter 14, an oil-gas separation filter element 15, a minimum pressure valve 16, a ball valve 17, a cold air mechanism, an oil cooler 18 and an air cooler 19, wherein two ends of the main screw 3 and the auxiliary screw 4 are respectively provided with a pivot 20, the main screw 3 and the auxiliary screw 4 are located in the casing 1, the pivots 20 are respectively movably mounted in the casing 1 through the bearing 6, the end cover 5 is fixedly mounted on the casing 1, the end cover 5 is sleeved outside the pivot 20 and is covered outside the bearing 6, the oil seal 7 is clamped in the end cover 5 and is sleeved outside the pivot 20, the motor 2 is fixedly mounted on the casing 1, an output shaft of the motor 2 is drivingly connected to a pivot 20 at one end of the main screw 3 through a coupling 21, gears 22 are provided on the pivot 20 at the other ends of the main screw 3 and the sub screw 4, respectively, and the gear 22 of the main screw 3 meshes with the gear 22 of the sub screw 4. An air inlet 23 is arranged at the front upper part of the machine shell 1, the air inlet valve 9 is arranged at the air inlet 23 of the machine shell 1, the air filter 8 is communicated with the air inlet valve 9, an oil shell 24 is arranged at the rear lower part of the machine shell 1, a discharge port 25 is arranged on the bottom wall of the machine shell 1 positioned in the oil shell 24, a bent pipe 26 is arranged at the discharge port 25 of the machine shell 1, an oil discharge port 27 is arranged at the bottom of the oil shell 24, a separation cavity 28 is arranged at the upper part of the oil shell 24, the safety valve 10 is communicated with the inside of the separation cavity 28, the oil-gas separation filter element 15 is fixedly arranged in the separation cavity 28, an air outlet 29 communicated with the inside of the oil-gas separation filter element 15 is arranged on the top wall of the separation cavity 28, the minimum pressure valve 16 is arranged at the air outlet 29 of the separation cavity 28, an oil return port 30 and an oil, one end of the oil suction pipe 12 penetrates through the oil-gas separation filter element 15, the other end of the oil suction pipe is communicated with an inlet of the one-way valve 11, one end of the oil cut-off valve 13 is communicated with the oil inlet 31, and one end of the air compressor oil filter 14 is communicated with the other end of the oil cut-off valve 13.

As shown in fig. 1, 4 and 5, the cooling air mechanism includes a corrugated paper wet curtain A8, a frame a9, a water outlet pipe a10, a water storage tank a11, a water pump a12, a negative pressure fan and a desiccant housing a14, an air outlet a15 is provided at the front of the frame a9, an air inlet a16 is provided at the rear of the frame a9, the corrugated paper wet curtain A8 is fixedly installed in the frame a9, the water outlet pipe a10 is fixedly installed in the frame a9 above the corrugated paper wet curtain A8, and water outlet holes a17 in rows are provided on the water outlet pipe a 10. As shown in fig. 6 and 7, the water inlet of the water pump a12 is communicated with the inside of the water storage tank a11, the water outlet of the water pump a12 is communicated with the water outlet pipe a10 through a pipe a18, the bottom of the frame a9 is provided with a water return port a19, the water return port a19 is communicated with the inside of the water storage tank a11, the water storage tank a11 is also provided with a water filling port a20, and the water filling port a20 is communicated with a valve a 21. A fan cover a22 is provided at the front of the frame a9, and the negative pressure fan is fixedly mounted in the fan cover a22, and the structure and the fixed mounting manner of the negative pressure fan are as follows: negative-pressure air fan includes fan motor A13 and flabellum A23, fan motor A13 passes through branch A24 fixed mounting in fan housing A22, flabellum A23 fixed mounting is on fan motor A13's output shaft. A clamping groove A25 with an opening at the upper part is arranged in a wind cover A22 in front of the negative pressure fan, the desiccant shell A14 is movably inserted in the clamping groove A25, wind holes A26 are respectively arranged on the front wall and the rear wall of the desiccant shell A14, active alumina grain balls A35 are filled in the desiccant shell A14, a first drain hole A33 and a second drain hole A34 which correspond to each other are respectively arranged at the bottom of the desiccant shell A14 and the bottom of the wind cover A22 clamping groove A25, a handle A27 is arranged at the top of the desiccant shell A14, and the desiccant shell A14 can be drawn out of the clamping groove A25 through the handle A27 so as to replace the active alumina grain balls A35.

As shown in fig. 9, the gas cooler 19 includes an inlet cavity 32 and an outlet cavity 33, the gas cooler 19 is fixedly mounted at the front end of the fan cover a22 through the inlet cavity 32 and the outlet cavity 33, plate-shaped gas passages 34 are arranged between the inlet cavity 32 and the outlet cavity 33, first fins 35 are respectively arranged between the adjacent plate-shaped gas passages 34, an inlet 36 is opened on the inlet cavity 32, the inlet 36 is communicated with the minimum pressure valve 16, an outlet 37 is opened on the outlet cavity 33, and the ball valve 17 is communicated with the outlet 37. As shown in fig. 8, the oil cooler 18 includes a bracket B7 and a cooling pipe B8, the bracket B7 is square, the bracket B7 is fixedly attached to the air inlet chamber 32 and the air outlet chamber 33 of the air cooler 19, the cooling pipe B8 is fixedly attached to the bracket B7 in a bent shape, a second fin B9 is provided on the cooling pipe B8, an oil inlet pipe B11 is communicated with one end of the cooling pipe B8, the oil inlet pipe B11 is communicated with the oil outlet 27 of the oil casing 24, an oil outlet pipe B10 is communicated with the other end of the cooling pipe B8, and the oil outlet pipe B10 is communicated with the other end of the air compressor oil filter 14.

The working principle of the integrated double-screw air compressor is as follows: the motor 2 drives the main screw 3 and the auxiliary screw 4 to rotate, air is sucked into the machine shell 1 through the air filter 8 and the air inlet valve 9 and is compressed, the compressed air is mixed with air compressor oil and discharged into the oil shell 24 from the discharge port 25, then the compressed air enters the separation cavity 28, is filtered by the oil-gas separation filter element 15 and then enters the oil-gas separation filter element 15, and is discharged into the air cooler 19 through the minimum pressure valve 16, the compressed air entering the oil-gas separation filter element 15 still contains a certain amount of air compressor oil droplets, and the droplets are gathered in the bottom of the oil-gas separation filter element 15 and flow back into the machine shell 1 through the oil suction pipe 12 and the check valve 11. Tap water is injected into the water storage tank A11 through the water injection port A20, water in the water storage tank A11 is conveyed into the water outlet pipe A10 through the water pump A12 and flows out of the water outlet hole A17, water drops flowing out flow down through the corrugated paper wet curtain A8 and flow into the water storage tank A11 from the water return port A19 to be sequentially utilized, outside air is sucked and drawn through the negative pressure fan, the air passes through the corrugated paper wet curtain A8 and enters the air hood A22, when the air passes through the corrugated paper wet curtain A8, the air is rapidly cooled due to evaporation of moisture, air flow after cooling passes through the active alumina particle balls A35 in the drying agent shell A14 again to dry cold air, the compressed air passing through the air cooler 19 is cooled by the dried cold air, and the cooled compressed air is discharged from the ball valve 17. The air compressor oil that has entered the oil casing 24 is discharged into the oil cooler 18 through the oil discharge port 27, and the air compressor oil that has passed through the oil cooler 18 is cooled by the cool air discharged by the cool air mechanism, and the cooled air compressor oil flows back into the casing 1 through the air compressor oil filter 14 and the oil shut-off valve 13.

Claims (3)

1. Integrated form double screw air compressor machine, its characterized in that: the oil cooler comprises a shell, a motor, a main screw rod, an auxiliary screw rod, an end cover, a bearing, an oil seal, an air filter, an air inlet valve, a safety valve, a one-way valve, an oil suction pipe, an oil cut-off valve, an air compressor oil filter, an oil-gas separation filter element, a minimum pressure valve, a ball valve, a cold air mechanism, an oil cooler and an air cooler, wherein pivots are respectively arranged at two ends of the main screw rod and the auxiliary screw rod, the main screw rod and the auxiliary screw rod are positioned in the shell, the pivots are respectively and movably arranged in the shell through the bearing, the end cover is fixedly arranged on the shell, is sleeved at the outer side of the pivot and covered at the outer side of the bearing, the oil seal is clamped in the end cover and sleeved at the outer side of the pivot, the motor is fixedly arranged on the shell, an output shaft of the motor is in transmission connection with the pivot at, the gear of the main screw is engaged with the gear of the auxiliary screw, the front upper part of the shell is provided with an air inlet, the air inlet valve is arranged at the air inlet of the shell, the air filter is communicated with the air inlet valve, the rear lower part of the shell is provided with an oil shell, the bottom wall of the shell positioned in the oil shell is provided with a discharge port, the discharge port of the shell is provided with a bent pipe, the bottom of the oil shell is provided with an oil discharge port, the upper part of the oil shell is provided with a separation cavity, the safety valve is communicated with the inside of the separation cavity, the oil-gas separation filter element is fixedly arranged in the separation cavity, the top wall of the separation cavity is provided with an air outlet communicated with the inside of the oil-gas separation filter element, the minimum pressure valve is arranged at the air outlet of the separation cavity, the lower part of the shell is respectively provided with an oil return port and an, the other end of the air compressor oil filter is communicated with an inlet of the one-way valve, one end of the oil cut-off valve is communicated with an oil inlet, one end of the air compressor oil filter is communicated with the other end of the oil cut-off valve, the cold air mechanism comprises a corrugated paper wet curtain, a frame, a water outlet pipe, a water storage tank, a water pump, a negative pressure fan and a drying agent shell, an air outlet is formed in the front of the frame, an air inlet is formed in the rear of the frame, the corrugated paper wet curtain is fixedly installed in the frame, the water outlet pipe is fixedly installed in the frame above the corrugated paper wet curtain, water outlet holes in rows are formed in the water outlet pipe, a water inlet of the water pump is communicated with the interior of the water storage tank, a water outlet of the water pump is communicated with the water outlet pipe through a pipeline, a water return port is formed in, the front part of the frame is provided with a fan cover, the negative pressure fan is fixedly arranged in the fan cover, a clamping groove with an opening at the upper part is arranged in the fan cover in front of the negative pressure fan, the drying agent shell is movably inserted in the clamping groove, the front wall and the rear wall of the drying agent shell are respectively provided with an air hole, the drying agent shell is filled with an active alumina particle ball, the bottom of the drying agent shell and the bottom of the clamping groove of the fan cover are respectively provided with a first drain hole and a second drain hole which correspond to each other, the air cooler comprises an air inlet cavity and an air outlet cavity, the air cooler is fixedly arranged at the front end part of the fan cover through the air inlet cavity and the air outlet cavity, a plate-shaped air passage for discharging is arranged between the air inlet cavity and the air outlet cavity, a first fin is respectively arranged between the adjacent plate-shaped air passages, the air inlet is, the ball valve is linked together with this gas vent, oil cooler is including support and cooling tube, the support is the mouth font, and support fixed mounting is on gas cooler's the chamber of admitting air and the chamber of giving vent to anger, the cooling tube is the form fixed mounting of buckling in the support, is provided with the second fin on the cooling tube, has into oil pipe at a tip intercommunication of cooling tube, and it is linked together with the oil drain port of oil shell to go into oil pipe, and another tip intercommunication at the cooling tube has an oil pipe, and another tip of oil pipe and air compressor oil filter is linked together.

2. The integrated twin-screw air compressor of claim 1, wherein: negative-pressure air fan includes fan motor and flabellum, fan motor passes through branch fixed mounting in the fan housing, flabellum fixed mounting is on fan motor's output shaft.

3. The integrated twin-screw air compressor of claim 1 or 2, wherein: and a handle is arranged at the top of the drying agent shell.

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