CN219082161U

CN219082161U - Screw air compressor

Info

Publication number: CN219082161U
Application number: CN202223322288.3U
Authority: CN
Inventors: 都章伟
Original assignee: Anxiang County Shunfa Building Materials Co ltd
Current assignee: Anxiang County Shunfa Building Materials Co ltd
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-05-26
Anticipated expiration: 2032-12-12

Abstract

The utility model provides a screw air compressor, which relates to the field of air compressor equipment and comprises an air compressor case and an air compression assembly integrated in the air compressor case, wherein an installation bottom plate is arranged at the inner cavity of the air compressor case, the air compression assembly is positioned on the installation bottom plate, a gap is reserved between the edge of the installation bottom plate and the inner wall of the air compressor case, two opposite buffer assemblies are fixedly connected to the bottom of the installation bottom plate, when the air compressor runs and vibrates, a support rod moves downwards through the pressing of a connecting plate, meanwhile, two connecting arms rotate on the support rod and push a sleeve to move on the surface of a cross rod, the sleeve extrudes a pressure spring and absorbs elasticity through a damping cushion, in addition, when the connecting plate presses downwards, two buffer rods move downwards in a cavity at the top of a buffer seat and extrude a pressure spring, the pressure inside the buffer seat generates resistance to buffer the downward moving speed of the buffer rods, the permanent magnet motor and a compression host are buffered in a plurality of buffer modes, and the jolt degree of equipment can be slowed down to a certain extent.

Description

Screw air compressor

Technical Field

The utility model relates to the field of air compressor equipment, in particular to a screw air compressor.

Background

An air compressor is a device for compressing a gas. The air compressor is similar in construction to the water pump. Most air compressors are reciprocating piston, rotary vane or rotary screw. Centrifugal compressors are very large applications. The air compressor is the core equipment of the pneumatic system, and the main body in the electromechanical air-entraining source device is a device for converting mechanical energy of motive force (usually an electric motor or a diesel engine) into air pressure energy and is an air pressure generating device of compressed air.

The prior screw air compressor has a motor and a diesel engine, the motor and the diesel engine drive the air compressor main machine to act through an intermediate transmission structure, so that the compression energy storage of air is realized, but the screw air compressor main machine can accompany strong vibration when in operation, and in order to relieve the vibration, a damper is usually arranged at the bottom of the main machine, but the damper is usually directly fixed with the bottom of the main machine, once the vibration amplitude is larger, the joint is easy to break, and danger is caused.

Therefore, it is necessary to provide a new screw air compressor to solve the above technical problems.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a screw air compressor.

The screw air compressor comprises an air compressor case and an air compressor assembly integrated in the air compressor case, wherein an installation bottom plate is arranged at the inner cavity of the air compressor case, the air compressor assembly is positioned on the installation bottom plate, a gap is reserved between the edge of the installation bottom plate and the inner wall of the air compressor case, and two opposite buffer assemblies are fixedly connected to the bottom of the installation bottom plate;

the buffer assembly comprises a connecting plate, a supporting rod, a base, two opposite connecting arms, two opposite sleeves and two opposite buffer seats, wherein the connecting plate is fixedly connected to the bottom of the mounting bottom plate, the supporting rod is fixedly connected to the bottom of the connecting plate, one end of the supporting rod, far away from the connecting plate, is hinged to the two connecting arms respectively, one end of the connecting arm, far away from the supporting rod, is hinged to the two sleeves respectively, a cross rod is arranged in the sleeve in a penetrating manner, two ends of the cross rod are fixedly connected to one opposite sides of the two buffer seats respectively, the two buffer seats are fixedly connected to the base respectively, damping pads are arranged on one opposite sides of the buffer seats respectively, and the base is fixedly connected with the bottom wall of the inner cavity of the air compressor box.

Further, two ends of the cross rod are respectively provided with a pressure spring in a ring mode, and two ends of the pressure spring are respectively connected with the sleeve and the damping pad in an elastic mode.

Further, the buffer rod is fixedly connected with two ends of the bottom of the connecting plate respectively, one end, away from the connecting plate, of the buffer rod penetrates through the cavity in the top of the buffer seat, a pressure spring is arranged on the outer surface of the buffer rod in a surrounding mode, and two ends of the pressure spring are fixedly connected with the connecting plate and the top of the buffer seat respectively.

Further, a plurality of radiating grooves for ventilation are formed in one side of the air compressor case, a rain shield is fixedly connected to the outer side of each radiating groove, and sound absorbing cotton is arranged on one side, close to the radiating grooves, of each rain shield.

Further, the air compression assembly comprises a permanent magnet motor, a compression host, an oil-gas separator and a cooling fan, wherein the permanent magnet motor and the compression host are respectively and fixedly connected to the mounting base plate, the output end of the permanent magnet motor is connected with the compression host, an air filtering mechanism is arranged at the top of the compression host, the oil-gas separator and the cooling fan are respectively arranged on the inner side wall and the top wall of the air compressor case, an air inlet pipe and an air outlet pipe are respectively arranged at two ends of the oil-gas separator in a penetrating mode, one end, far away from the oil-gas separator, of the air inlet pipe is connected with the compression host, and one end, far away from the oil-gas separator, of the air outlet pipe is arranged at the top of the air compressor case in a penetrating mode.

Further, a visual oil mirror is arranged at the center of the air inlet pipe.

Further, the air filtering mechanism comprises a mounting seat, a shell and a thickening silencing cover, wherein the mounting seat is fixedly connected to the top of the compression host, the shell is fixedly connected to the mounting seat, the thickening silencing cover is detachably connected to the surface of the shell, the inner wall of the thickening silencing cover is fixedly connected with a rubber silencing pipe, an air filtering cotton is arranged in an inner cavity of the shell, and the inner cavity of the shell is respectively communicated with the inner cavity of the mounting seat and the inner cavity of the compression host.

Compared with the related art, the screw air compressor provided by the utility model has the following beneficial effects:

when the air compressor machine operation takes place vibrations, make the bracing piece move down by the connecting plate pushes down, two linking arms can rotate on the bracing piece and promote the sleeve simultaneously and remove on the horizontal pole surface, compress the pressure spring and absorb elasticity through the damping pad by the sleeve, two buffer rods can move down and compress pressure spring in the cavity at buffer seat top when the connecting plate pushes down in addition, the inside pressure of buffer seat changes and can produce the resistance and cushion the speed that the buffer rod moved down, cushion permanent magnet motor and compression host computer through the mode of many buffering, can slow down the jolt degree of equipment to a certain extent.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a screw air compressor provided by the utility model;

fig. 2 is a schematic diagram of an internal structure of the air compressor case provided by the utility model;

fig. 3 is a schematic view of another view structure of the air compressor case provided by the present utility model;

FIG. 4 is an enlarged schematic view of the structure A shown in FIG. 3;

fig. 5 is a schematic structural diagram of a buffer assembly according to the present utility model.

Reference numerals in the drawings: 1. an air compressor case; 2. a mounting base plate; 3. a connecting plate; 4. a support rod; 5. a base; 6. a connecting arm; 7. a sleeve; 8. a buffer seat; 9. a cross bar; 10. a damping pad; 11. a pressure spring; 12. a buffer rod; 13. a pressure spring; 14. a heat sink; 15. a rain shield; 16. a permanent magnet motor; 17. compressing a host; 18. an oil-gas separator; 19. a heat radiation fan; 20. an air inlet pipe; 21. an air outlet pipe; 22. visual oil mirror; 23. a mounting base; 24. a housing; 25. thickening the silencing cover; 26. rubber muffler pipe.

Detailed Description

The utility model will be further described with reference to the drawings and embodiments.

Referring to fig. 1, fig. 2, fig. 3, fig. 4, and fig. 5 in combination, fig. 1 is a schematic diagram of an overall structure of a screw air compressor according to the present utility model; fig. 2 is a schematic diagram of an internal structure of the air compressor case provided by the utility model; fig. 3 is a schematic view of another view structure of the air compressor case provided by the present utility model;

FIG. 4 is an enlarged schematic view of the structure A shown in FIG. 3; fig. 5 is a schematic structural diagram of a buffer assembly according to the present utility model.

In the specific implementation process, as shown in fig. 1-5, an inner cavity of an air compressor case 1 is provided with a mounting bottom plate 2, an air compressor assembly is positioned on the mounting bottom plate 2, a gap is reserved between the edge of the mounting bottom plate 2 and the inner wall of the air compressor case 1, the bottom of the mounting bottom plate 2 is fixedly connected with two opposite buffer assemblies, each buffer assembly comprises a connecting plate 3, a supporting rod 4, a base 5, two opposite connecting arms 6, two opposite sleeves 7 and two opposite buffer seats 8, the connecting plate 3 is fixedly connected to the bottom of the mounting bottom plate 2, the supporting rod 4 is fixedly connected to the bottom of the connecting plate 3, one end of the supporting rod 4 far away from the connecting plate 3 is respectively hinged with the two connecting arms 6, one end of the two connecting arms 6 far away from the supporting rod 4 is respectively hinged with the two sleeves 7, the cross rod 9 is penetrated in the sleeve 7, two ends of the cross rod 9 are fixedly connected with one sides of the two buffer seats 8, which are opposite to each other, the two buffer seats 8 are fixedly connected to the base 5, damping pads 10 are respectively arranged on one sides of the two buffer seats 8, which are opposite to each other, the base 5 is fixedly connected with the bottom wall of the inner cavity of the air compressor box 1, the two ends of the cross rod 9 are respectively provided with a pressure spring 11 in a surrounding manner, the two ends of the pressure spring 11 are respectively elastically connected with the sleeve 7 and the damping pads 10, two ends of the bottom of the connecting plate 3 are respectively fixedly connected with a buffer rod 12, one end, far away from the connecting plate 3, of the buffer rod 12 is penetrated in a cavity at the top of the buffer seat 8, a pressure spring 13 is annularly arranged on the outer surface of the buffer rod 12, and two ends of the pressure spring 13 are respectively fixedly connected with the top of the connecting plate 3 and the buffer seat 8;

a plurality of radiating grooves 14 for air circulation are formed in one side of the air compressor case 1, a rain shield 15 is fixedly connected to the outer side of the radiating grooves 14, sound absorbing cotton is arranged on one side, close to the radiating grooves 14, of the rain shield 15, the air compressor assembly comprises a permanent magnet motor 16, a compression host 17, an oil-gas separator 18 and a radiating fan 19, the permanent magnet motor 16 and the compression host 17 are respectively and fixedly connected to an installation base plate 2, the output end of the permanent magnet motor 16 is connected with the compression host 17, an air filtering mechanism is arranged at the top of the compression host 17, the oil-gas separator 18 and the radiating fan 19 are respectively arranged on the inner side wall and the top wall of the air compressor case 1, an air inlet pipe 20 and an air outlet pipe 21 are respectively arranged at two ends of the oil-gas separator 18 in a penetrating mode, one end, far away from the oil-gas separator 18, of the air inlet pipe 20 is connected with the compression host 17, the end, far away from the oil-gas separator 18, of the air separator 18 is arranged on the top of the air compressor case 1 in a penetrating mode, and a visual oil mirror 22 is arranged in the center of the air inlet pipe 20, so that the inside of the air inlet pipe 20 is convenient to observe;

the air filtering mechanism comprises a mounting seat 23, a shell 24 and a thickening silencing cover 25, wherein the mounting seat 23 is fixedly connected to the top of the compression host 17, the shell 24 is fixedly connected to the mounting seat 23, the thickening silencing cover 25 is detachably connected to the surface of the shell 24, the inner wall of the thickening silencing cover 25 is fixedly connected with a rubber silencing pipe 26, an inner cavity of the shell 24 is provided with air filtering cotton, the inner cavity of the shell 24 is respectively communicated with the inner cavity of the mounting seat 23 and the inner cavity of the compression host 17, and air in the compression host 17 can be filtered through the air filtering cotton, and noise generated by the compression host 17 during working can be relieved due to the arrangement of the rubber silencing pipe 26 and the thickening silencing cover 25.

The working principle provided by the utility model is as follows: when the device is used, when the air compressor runs and shakes, the connecting plate 3 presses down to enable the supporting rod 4 to move downwards, meanwhile, the two connecting arms 6 rotate on the supporting rod 4 and push the sleeve 7 to move on the surface of the cross rod 9, the sleeve 7 presses the pressure spring 11 and absorbs elastic force through the damping pad 10, in addition, when the connecting plate 3 presses down, the two buffer rods 12 move downwards in the cavity at the top of the buffer seat 8 and press the pressure spring 13, the pressure change in the buffer seat 8 can generate resistance to buffer the downward moving speed of the buffer rods 12, the jolt degree of the air compression assembly can be slowed down to a certain extent, the inner rotor of the permanent magnet motor 16 rotates along with the buffer rod when the permanent magnet motor 16 starts, the tooth groove space of the male and female rotors is the largest when the tooth groove space is turned to the opening of the air inlet end wall, at the moment, the tooth groove space of the rotors is communicated with the air inlet, because the air in the tooth groove is completely discharged during air discharge, when the air discharge is completed, the tooth groove is in a vacuum state, when the air is turned to the air inlet, the external air is sucked into the tooth groove of the male and female rotors along the axial direction, when the air is filled in the whole tooth groove, the air in the tooth groove is turned away from the air inlet of the casing, the air in the air inlet is sealed, the air is compressed by the compression host 17, enters the oil-gas separator 18 through the air inlet pipe 20 and is discharged through the air outlet pipe 21, and the heat dissipation effect inside the air compressor case 1 is improved by arranging the heat dissipation fan 19 and the heat dissipation groove 14.

The circuits and control involved in the present utility model are all of the prior art, and are not described in detail herein.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. The screw air compressor is characterized by comprising an air compressor case (1) and an air compression assembly integrated in the air compressor case (1), wherein an installation base plate (2) is arranged at the inner cavity of the air compressor case (1), the air compression assembly is positioned on the installation base plate (2), a gap is reserved between the edge of the installation base plate (2) and the inner wall of the air compressor case (1), and two opposite buffer assemblies are fixedly connected to the bottom of the installation base plate (2);

the utility model provides a damping device, including connecting plate (3), bracing piece (4), base (5), two relative linking arm (6), two relative sleeve (7) and two relative buffering seat (8), connecting plate (3) fixed connection in mounting plate (2) bottom, bracing piece (4) fixed connection in connecting plate (3) bottom, just bracing piece (4) are kept away from one end of connecting plate (3) respectively with two linking arm (6) are articulated mutually, two linking arm (6) keep away from one end of bracing piece (4) respectively with two sleeve (7) are articulated mutually, wear to be equipped with horizontal pole (9) in sleeve (7), the both ends of horizontal pole (9) respectively with two one side fixed connection that buffering seat (8) are relative, two one side that buffering seat (8) are relative is equipped with damping pad (10) respectively on base (5) with the diapire fixed connection of inner chamber box (1).

2. Screw air compressor according to claim 1, characterized in that the two ends of the cross bar (9) are respectively provided with a compression spring (11) in a ring, and the two ends of the compression spring (11) are respectively and elastically connected with the sleeve (7) and the damping pad (10).

3. The screw air compressor according to claim 2, wherein two ends of the bottom of the connecting plate (3) are respectively and fixedly connected with a buffer rod (12), one end of the buffer rod (12), which is far away from the connecting plate (3), is arranged in a cavity at the top of the buffer seat (8) in a penetrating way, a pressure spring (13) is arranged on the outer surface of the buffer rod (12) in a surrounding way, and two ends of the pressure spring (13) are respectively and fixedly connected with the connecting plate (3) and the top of the buffer seat (8).

4. A screw air compressor according to claim 3, wherein a plurality of heat dissipation grooves (14) for air circulation are formed in one side of the air compressor case (1), a rain shield plate (15) is fixedly connected to the outer side of the heat dissipation grooves (14), and sound absorbing cotton is arranged on one side, close to the heat dissipation grooves (14), of the rain shield plate (15).

5. The screw air compressor according to claim 4, wherein the air compressor assembly comprises a permanent magnet motor (16), a compression host (17), an oil-gas separator (18) and a cooling fan (19), the permanent magnet motor (16) and the compression host (17) are respectively and fixedly connected to the mounting base plate (2), an output end of the permanent magnet motor (16) is connected with the compression host (17), an air filtering mechanism is arranged at the top of the compression host (17), the oil-gas separator (18) and the cooling fan (19) are respectively arranged on the inner side wall and the top wall of the air compressor case (1), an air inlet pipe (20) and an air outlet pipe (21) are respectively arranged at two ends of the oil-gas separator (18), one end, far away from the oil-gas separator (18), of the air inlet pipe (20) is connected with the compression host (17), and one end, far away from the oil-gas separator (18), of the air outlet pipe (21) is arranged at the top of the air compressor case (1) in a penetrating manner.

6. Screw air compressor according to claim 5, characterized in that a visual oil mirror (22) is provided in the centre of the air inlet pipe (20).

7. The screw air compressor of claim 6, wherein the air filtering mechanism comprises a mounting seat (23), a shell (24) and a thickening silencing cover (25), the mounting seat (23) is fixedly connected to the top of the compression host (17), the shell (24) is fixedly connected to the mounting seat (23), the thickening silencing cover (25) is detachably connected to the surface of the shell (24), a rubber silencing pipe (26) is fixedly connected to the inner wall of the thickening silencing cover (25), air filtering cotton is arranged in the inner cavity of the shell (24), and the inner cavity of the shell (24) is respectively communicated with the inner cavity of the mounting seat (23) and the inner cavity of the compression host (17).