CN213511196U

CN213511196U - Vehicle-mounted screw compressor

Info

Publication number: CN213511196U
Application number: CN202022181690.9U
Authority: CN
Inventors: 周坤; 周武彬; 王业荣; 马升
Original assignee: Ningbo Baosi Energy Equipment Co Ltd
Current assignee: Ningbo Baosi Energy Equipment Co Ltd
Priority date: 2020-09-29
Filing date: 2020-09-29
Publication date: 2021-06-22
Anticipated expiration: 2030-09-29

Abstract

The utility model discloses a vehicle-mounted screw compressor, which comprises a cylinder and a primary transmission main shaft, wherein a first rotor and a second rotor which are meshed with each other are arranged in the cylinder; the air inlet end of the air cylinder is connected with an air inlet seat; the air inlet seat is connected with a gear box, and an installation cavity is formed between the air inlet seat and the gear box; a secondary transmission main shaft is arranged in the mounting cavity; the driving end of the primary transmission main shaft extends into the mounting cavity, and the primary transmission main shaft is connected with the secondary transmission main shaft through a first gear assembly; the secondary transmission main shaft is connected with the first rotor through a second gear assembly; the oil pump is connected to the secondary transmission main shaft, oil passages are formed in the air cylinder and the gear box, the secondary transmission main shaft drives the oil pump to work, and the oil pump sprays oil to lubricate a gear of the first gear assembly, a gear of the second gear assembly, a bearing assembly of the air inlet end of the first rotor and a bearing assembly of the air inlet end of the second rotor through the oil passages. The vehicle-mounted screw compressor is simple and compact in structure, small in occupied space and light in weight.

Description

Vehicle-mounted screw compressor

Technical Field

The utility model relates to a compressor technical field, more precisely relate to an on-vehicle helical-lobe compressor.

Background

With the market demand that oil-free compressors are more and more concerned by the public, the oil-free compressors are also confirmed in the industries of food, medical treatment, textile and the like. The powder conveying compressor needs oil-free environment transportation in order to ensure that transported objects are not polluted by oil. In the screw compressor in the prior art, an external oil pump is required to supply oil to a bearing for lubrication, so that the structure is complex and the cost is high; in addition, the external oil pump makes the whole volume of oil-free compressor great, occupies great area, and weight is heavier moreover.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an on-vehicle screw compressor, this on-vehicle screw compressor simple structure and compactness, the cost is lower, and the volume is less, and occupation space is less and weight is lighter.

The technical solution of the utility model is to provide a vehicle-mounted screw compressor with the following structure, which comprises a cylinder and a primary transmission main shaft connected with a driving mechanism, wherein a first rotor and a second rotor which are meshed with each other are arranged in the cylinder; the air inlet end of the air cylinder is connected with an air inlet seat; the air inlet seat is connected with a gear box, and an installation cavity is formed between the air inlet seat and the gear box; a secondary transmission main shaft is arranged in the mounting cavity; the driving end of the primary transmission main shaft extends into the mounting cavity and the primary transmission main shaft is connected with the secondary transmission main shaft through a first gear assembly; the secondary transmission main shaft is connected with the first rotor through a second gear assembly; the oil pump sprays oil and lubricates the gear of the first gear assembly, the gear of the second gear assembly, the bearing assembly at the air inlet end of the first rotor and the bearing assembly at the air inlet end of the second rotor through the oil passages.

After the structure above adopting, the utility model discloses an on-vehicle helical-lobe compressor compares with prior art, has following advantage:

because the utility model discloses an on-vehicle screw compressor's oil pump connection need not external oil pump on the second grade transmission main shaft, simple structure and compactness, and the cost is lower, and the volume is less, and occupation space is less and weight is lighter. The oil pump is directly arranged on the secondary transmission main shaft, and the cooling effect is reliable.

As an improvement, the vehicle-mounted screw compressor further comprises an oil tank, the oil tank is connected with the air cylinder, and the oil tank is communicated with the oil way. After adopting this kind of structure, on-vehicle helical-lobe compressor is from taking the oil tank, and the structure is compacter, further reduce cost, reduces the volume.

As an improvement, the oil tank is connected to the bottom of the cylinder. After adopting this kind of structure, structural design is more reasonable.

As an improvement, the primary transmission main shaft is arranged between the air inlet seat and the gear box, and two ends of the primary transmission main shaft are respectively connected to the air inlet seat and the gear box through bearings; and the oil pump sprays oil to the bearings at two ends of the primary transmission main shaft through an oil way for lubrication. After adopting this kind of structure, simple structure, the equipment is convenient.

As an improvement, the secondary transmission main shaft is arranged between the air inlet seat and the gear box, and two ends of the secondary transmission main shaft are respectively connected to the air inlet seat and the gear box through bearings; and the oil pump sprays oil to the bearings at two ends of the secondary transmission main shaft through an oil way for lubrication. After adopting this kind of structure, simple structure, the equipment is convenient.

As an improvement, the secondary transmission main shaft is positioned above the air inlet end of the first rotor, and the primary transmission main shaft is positioned above the secondary transmission main shaft. After adopting this kind of structure, simple structure and compactness.

As an improvement, the oil pump is arranged on the gear box, and a rotor of the oil pump and the primary transmission main shaft are arranged at the end part of the gear box and connected. After adopting this kind of structure, simple structure, the equipment is convenient.

As an improvement, a driving block is arranged at the end part of a rotor of the oil pump and connected to the end part of the primary transmission main shaft. After adopting this kind of structure, simple structure, the equipment is convenient.

As an improvement, the driving block is fixedly connected to the end part of the rotor of the oil pump, a groove is formed in the end part of the primary transmission main shaft, the driving block is matched in the groove, and the primary transmission main shaft rotates to drive the driving block and the oil pump rotor to rotate together. After adopting this kind of structure, simple structure, the equipment is convenient.

As an improvement, a mounting groove is arranged on the side wall of the gear box, and a first primary transmission main shaft bearing is arranged at the bottom of the mounting groove; the oil pump is embedded in the mounting groove, and the tail end of the oil pump is exposed outside the mounting groove. After adopting this kind of structure, the structure is compacter.

As an improvement, the shell of the oil pump is provided with a limiting step, and the limiting step is limited at the notch of the mounting groove. After adopting this kind of structure, the oil pump dismouting is more convenient.

As an improvement, a first synchronous gear is arranged at the exhaust end of the first rotor, a second synchronous gear is arranged at the exhaust end of the second rotor, and the first synchronous gear is meshed with the second synchronous gear; the air inlet end of first rotor be equipped with first increasing gear, the secondary drive main shaft on still be equipped with second increasing gear, first increasing gear and second increasing gear meshing, the secondary drive main shaft on be equipped with third increasing gear, the primary drive main shaft on be equipped with fourth increasing gear, third increasing gear and fourth increasing gear meshing. After adopting this kind of structure, transmission efficiency is higher.

Drawings

Fig. 1 is a schematic perspective view of the vehicular screw compressor of the present invention.

Fig. 2 is a schematic perspective view of another angle of the vehicular screw compressor of the present invention.

Fig. 3 is the schematic view of the three-dimensional structure of the vehicle-mounted screw compressor without the gear box.

Fig. 4 is a schematic sectional structure view of the vehicular screw compressor of the present invention.

Fig. 5 is a schematic cross-sectional view of another angle of the vehicular screw compressor of the present invention.

Shown in the figure: 1. a cylinder 101, a first mounting hole 102, a second mounting hole 2, a gear box 201, a mounting groove 3, an oil tank 4, an air inlet adapter seat 5, a primary transmission main shaft 6, an oil pump 7, a first rotor 8, a second rotor 9, a first sealing ring 10, a first oil retainer ring 11, a first bearing assembly 12, a first synchronous gear 13, a second sealing ring 14, a second oil retainer ring 15, a second bearing assembly 16, a second synchronous gear 17, a main machine pressure plate 18, an air inlet seat 1801, a third mounting hole 1802, a fourth mounting hole 19, a first sealing assembly 20, a third bearing assembly 21, a first speed increasing gear 22, a second sealing assembly 23, a fourth bearing assembly 24, a mounting cavity 25, a first primary transmission main shaft bearing 26, a second primary transmission main shaft bearing 29, a second gear, 30. a third speed increasing gear 31 and a fourth speed increasing gear.

Detailed Description

For a better understanding of the present application, various aspects of the present application will be described in more detail with reference to the accompanying drawings. It should be understood that the detailed description is merely illustrative of exemplary embodiments of the present application and does not limit the scope of the present application in any way. Like reference numerals refer to like elements throughout the specification.

In the drawings, the thickness, size, and shape of an object have been slightly exaggerated for convenience of explanation. The figures are purely diagrammatic and not drawn to scale.

It will be further understood that the terms "comprises," "comprising," "includes," "including," "has," "having," "contains," and/or "containing," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

As shown in fig. 1 to 5, the present embodiment discloses a vehicle-mounted screw compressor, which includes a cylinder 1, a gear box 2, an oil tank 3, an air intake adapter 4, a primary transmission main shaft 5, a secondary transmission main shaft, and an oil pump 6.

The two ends of the cylinder 1 are both provided with openings, a first rotor 7 and a second rotor 8 which are meshed with each other are arranged in the cylinder 1, the first rotor 7 can be a male rotor or a female rotor, and correspondingly, the second rotor 8 can be a female rotor or a male rotor. The exhaust end of the cylinder 1 is provided with a first mounting hole 101 and a second mounting hole 102. The first mounting hole 101 is sequentially provided with a first sealing ring 9, a first oil retainer ring 10 and a first bearing assembly 11 from inside to outside, the exhaust end of the first rotor 7 passes through the first sealing ring 9 and the first oil retainer ring 10 and then is mounted in the first bearing of the first bearing assembly 11, the end part of the exhaust end of the first rotor 7 is exposed outside the first bearing assembly 11, and a first synchronous gear 12 is mounted at the end part of the exhaust end of the first rotor 7. The oil deflector ring and the sealing ring play a role in sealing, so that lubricating oil is prevented from entering the cylinder 1. The second mounting hole 102 is provided with a second sealing ring 13, a second oil slinger 14 and a second bearing assembly 15 in sequence from inside to outside, the exhaust end of the second rotor 8 passes through the second sealing ring 13 and the second oil slinger 14 and then is mounted in the second bearing of the second bearing assembly 15, the end part of the exhaust end of the second rotor 8 is exposed outside the second bearing assembly 15, and a second synchronous gear 16 is mounted at the end part of the exhaust end of the second rotor 8. The first synchronizing gear 12 and the second synchronizing gear 16 are meshed. The end face of the exhaust end of the air cylinder 1 is connected with a main machine pressing plate 17, and the outer side of the main machine pressing plate 17 is connected with an air inlet adapter 4.

The end part of the air inlet end of the air cylinder 1 is connected with an air inlet seat 18, and the air inlet end of the air cylinder 1 is connected with the lower part of the air inlet seat 18. The air inlet seat 18 is provided with a third mounting hole 1801 and a fourth mounting hole 1802. The third mounting hole 1801 is provided with a first sealing assembly 19 and a third bearing assembly 20 in sequence from inside to outside, the air inlet end of the first rotor 7 passes through the first sealing assembly 19 and is mounted in the third bearing of the third bearing assembly 20, and the end of the air inlet end of the first rotor 7 is exposed outside the third bearing and extends into the mounting cavity 24. A first speed increasing gear 21 is mounted at the end part of the air inlet end of the first rotor 7. The end part of the air inlet end of the first rotor 7 and the outer side of the first speed increasing gear 21 are connected with a locking nut, and the locking nut is used for locking the first speed increasing gear 21. The fourth mounting hole 1802 is sequentially provided with a second seal assembly 22 and a fourth bearing assembly 23 from inside to outside, and the air inlet end of the second rotor 8 passes through the second seal assembly 22 and is mounted in a fourth bearing of the fourth bearing assembly 23.

The air inlet seat 18 is connected with the gear box 2, and the edge of the air inlet seat 18 is fixedly and hermetically connected with the edge of the gear box 2. A mounting cavity 24 is formed between the air inlet seat 18 and the gear box 2. The primary transmission main shaft 5 crosses the installation cavity 24, and two ends of the primary transmission main shaft 5 are respectively connected to the gear box 2 and the air inlet seat 18 through a first primary transmission main shaft 255 bearing and a second primary transmission main shaft 265 bearing. The secondary transmission main shaft crosses the installation cavity 24, and two ends of the secondary transmission main shaft are respectively connected to the gear box 2 and the air inlet seat 18 through a first secondary transmission main shaft bearing and a second secondary transmission main shaft bearing. The primary transmission main shaft 5 is positioned above the secondary transmission main shaft, and the secondary transmission main shaft is positioned above the air inlet end of the first rotor 7. The secondary transmission main shaft is further provided with a second speed increasing gear 29, the first speed increasing gear 21 is meshed with the second speed increasing gear 29, the secondary transmission main shaft is provided with a third speed increasing gear 30, the primary transmission main shaft 5 is provided with a fourth speed increasing gear 31, and the third speed increasing gear 30 is meshed with the fourth speed increasing gear 31. The third speed-up gear 30 and the fourth speed-up gear 31 form the first gear assembly, and the first speed-up gear 21 and the second speed-up gear 29 form the second gear assembly.

The side wall of the gear box 2 is provided with a mounting groove 201, and the first main shaft bearing is arranged at the bottom of the mounting groove 201. The oil pump 6 is embedded in the mounting groove 201 and the tail end of the oil pump 6 is exposed out of the mounting groove 201. The shell of the oil pump 6 is provided with a limiting step, and the limiting step is limited at the notch of the mounting groove 201. The end part of the rotor of the oil pump 6 is fixedly connected with a driving block, the end part of the main shaft is provided with a groove, and the driving block is matched in the groove. The main shaft rotates to drive the driving and oil pump 6 rotor to rotate together.

And oil passages are arranged on the gear box 2, the air inlet seat 18 and the air cylinder 1, and the oil pump 6 is used for spraying oil and lubricating all gears and bearings in the vehicle-mounted screw compressor through the oil passages. The oil suction port is positioned on the side wall of the mounting cavity 24, and the oil suction port is communicated with the oil tank 3 and the oil path. The provision of oil passages in the gear housing 2, the inlet housing 18 and the cylinder 1 is a conventional technique, and it is not necessary to expand how the oil passages are provided here.

When the vehicle-mounted screw compressor works, the driver drives the primary transmission main shaft 5 to rotate, and drives the fourth speed increasing gear 31 to rotate, so that the third speed increasing gear 30 is driven to rotate; the third speed increasing gear 30 rotates to drive the second-stage transmission main shaft and the second speed increasing gear 29 to rotate, the second-stage transmission main shaft drives the rotor of the oil pump 6 to rotate, and lubricating oil is sucked from the oil suction port and then conveyed to positions needing oil spraying and lubricating through oil paths. The secondary transmission main shaft drives the first speed increasing gear 21 to rotate through the second speed increasing gear 29, so as to drive the first rotor 7 to rotate and the second rotor 8 to rotate.

Claims

1. A vehicle-mounted screw compressor comprises a cylinder and a primary transmission main shaft connected with a driving mechanism, wherein a first rotor and a second rotor which are meshed with each other are arranged in the cylinder; the air inlet end of the air cylinder is connected with an air inlet seat; the method is characterized in that: the air inlet seat is connected with a gear box, and an installation cavity is formed between the air inlet seat and the gear box; a secondary transmission main shaft is arranged in the mounting cavity; the driving end of the primary transmission main shaft extends into the mounting cavity and the primary transmission main shaft is connected with the secondary transmission main shaft through a first gear assembly; the secondary transmission main shaft is connected with the first rotor through a second gear assembly; the oil pump sprays oil and lubricates the gear of the first gear assembly, the gear of the second gear assembly, the bearing assembly at the air inlet end of the first rotor and the bearing assembly at the air inlet end of the second rotor through the oil passages.

2. The vehicle-mounted screw compressor according to claim 1, wherein: the vehicle-mounted screw compressor further comprises an oil tank, the oil tank is connected with the air cylinder, and the oil tank is communicated with the oil way.

3. The vehicular screw compressor according to claim 2, characterized in that: the oil tank is connected to the bottom of the cylinder.

4. The vehicle-mounted screw compressor according to claim 1, wherein: the primary transmission main shaft is arranged between the air inlet seat and the gear box, and two ends of the primary transmission main shaft are respectively connected to the air inlet seat and the gear box through bearings; and the oil pump sprays oil to the bearings at two ends of the primary transmission main shaft through an oil way for lubrication.

5. The vehicle screw compressor according to claim 4, wherein: the secondary transmission main shaft is arranged between the air inlet seat and the gear box, and two ends of the secondary transmission main shaft are respectively connected to the air inlet seat and the gear box through bearings; and the oil pump sprays oil to the bearings at two ends of the secondary transmission main shaft through an oil way for lubrication.

6. The vehicle screw compressor according to claim 4, wherein: the secondary transmission main shaft is positioned above the air inlet end of the first rotor, and the primary transmission main shaft is positioned above the secondary transmission main shaft.

7. The vehicle-mounted screw compressor according to claim 1, wherein: the oil pump is arranged on the gear box, and the rotor of the oil pump is connected with the end part of the gear box, where the primary transmission main shaft is arranged.

8. The vehicular screw compressor according to claim 7, characterized in that: the end part of the rotor of the oil pump is provided with a driving block, and the driving block is connected to the end part of the primary transmission main shaft.

9. The vehicle screw compressor according to claim 8, wherein: the driving block is fixedly connected to the end of the rotor of the oil pump, a groove is formed in the end of the primary transmission main shaft, the driving block is matched with the groove, and the primary transmission main shaft rotates to drive the driving block and the oil pump rotor to rotate together.

10. The vehicular screw compressor according to claim 7, characterized in that: the side wall of the gear box is provided with a mounting groove, and the bottom of the mounting groove is provided with a first primary transmission main shaft bearing; the oil pump is embedded in the mounting groove, and the tail end of the oil pump is exposed outside the mounting groove.

11. The vehicular screw compressor according to claim 10, characterized in that: the shell of the oil pump is provided with a limiting step, and the limiting step is limited at the notch of the mounting groove.

12. The vehicular screw compressor according to claim 3, characterized in that: the exhaust end of the first rotor is provided with a first synchronous gear, the exhaust end of the second rotor is provided with a second synchronous gear, and the first synchronous gear is meshed with the second synchronous gear; the air inlet end of first rotor be equipped with first increasing gear, the secondary drive main shaft on still be equipped with second increasing gear, first increasing gear and second increasing gear meshing, the secondary drive main shaft on be equipped with third increasing gear, the primary drive main shaft on be equipped with fourth increasing gear, third increasing gear and fourth increasing gear meshing.