CN212615361U

CN212615361U - Roots blower

Info

Publication number: CN212615361U
Application number: CN202021193248.1U
Authority: CN
Inventors: 景慎明
Original assignee: Jinan Yuanxiang Machinery Co ltd
Current assignee: Jinan Yuanxiang Machinery Co ltd
Priority date: 2020-06-24
Filing date: 2020-06-24
Publication date: 2021-02-26
Anticipated expiration: 2030-06-24

Abstract

The utility model discloses a Roots blower, which comprises a base, a semicircular plate and a connecting pipe, wherein a motor is fixed at the rear end of the upper surface of the base, the front end of the upper surface of the base is fixed with a blast box, the air outlet end of the blast box is fixed with an exhaust pipe, a first flange is fixed at the front end of the exhaust pipe, a second flange is fixed at the rear end of the connecting pipe, the second flange plate is butted with the first flange plate through bolts, annular grooves are formed in the outer surfaces of the first flange plate and the second flange plate, the inner side of the semicircular plate is provided with a groove, a sealing gasket is fixedly attached in the groove, the front end and the rear end of the bottom of the semicircular plate are respectively inserted into the annular grooves from the upper end and the lower end of the first flange plate and the lower end of the second flange plate, two fixing blocks are fixed at the two ends of one side, opposite to the semicircular plate, of the semicircular plate, and the two fixing blocks are fixedly connected through screws. The utility model has the advantages of consolidate the junction of ring flange, seal the junction of ring flange, prevent gas leakage.

Description

Roots blower

Technical Field

The utility model relates to a roots blower technical field specifically is a roots blower.

Background

The Roots blower belongs to a positive displacement blower, and the end faces of an impeller and front and rear end covers of the blower. The principle is a rotary compressor which compresses and conveys gas by utilizing the relative motion of two blade-shaped rotors in a cylinder. The Roots blower is widely applied to aquaculture oxygenation, sewage treatment aeration and cement conveying, is more suitable for a gas conveying and pressurizing system in a low-pressure occasion, and can also be used as a vacuum pump and the like.

The exhaust pipe and the connecting pipe of roots blower dock and ventilate, dock through the ring flange between exhaust pipe and the connecting pipe, pass through the bolt fastening after two ring flanges dock, and the pressure that the ring flange bore is born by the bolt, and too big pressure can make two ring flange junctions leak out simultaneously, influences roots blower's use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a roots blower possesses the junction reinforcement to the ring flange, and is sealed to the junction of ring flange simultaneously, prevents the advantage of gas leakage, has solved the pressure that the ring flange bore and has born by the bolt, and too big pressure can make two ring flange junctions leak wind simultaneously, influences the problem that roots blower used.

In order to achieve the above object, the utility model provides a following technical scheme: a Roots blower comprises a base, semicircular plates and connecting pipes, wherein a motor is fixed at the rear end of the upper surface of the base, a blast box is fixed at the front end of the upper surface of the base, an exhaust pipe is fixed at the air outlet end of the blast box and is communicated with the interior of the blast box, a first flange is fixed at the front end of the exhaust pipe, a second flange is fixed at the rear end of the connecting pipe and is butted with the first flange through bolts, the connecting pipe is communicated with the exhaust pipe, annular grooves are respectively formed in the outer surfaces of the first flange and the second flange, which are different from the two ends of the first flange and the second flange, grooves are formed in the inner sides of the semicircular plates, sealing gaskets are fixedly attached in the grooves, the front ends and the rear ends of the bottoms of the two semicircular plates are respectively inserted into the annular grooves from the upper ends and the lower ends of the first flange and the second flange, and the two fixing blocks are fixedly connected through screws.

Preferably, the driving wheel is rotatably installed at one end of the motor through a first transmission shaft, the driven wheel is rotatably installed at one end of the blast box through a second transmission shaft, and the driving wheel is connected with the driven wheel through a transmission belt.

Preferably, a protective cover is fixed on one side of the upper surface of the base and covers the driving wheel and the driven wheel.

Preferably, bolt holes matched with the bolts are formed in the first flange plate and the second flange plate, and nuts are installed at one end, penetrating through the bolt holes, of each bolt.

Preferably, the two semicircular plates are butted to form a complete circular ring to cover the joint of the first flange plate and the second flange plate, and the sealing gasket presses the joint of the first flange plate and the second flange plate.

Preferably, the fixing block is provided with a screw hole matched with the screw.

Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model discloses a set up half circular plate, ring channel and sealed the pad, reached and consolidated the junction of ring flange, sealed the junction of ring flange simultaneously, prevent the effect of gas leakage, the utility model discloses be provided with half circular plate, ring channel and sealed pad, first ring flange is fixed with the exhaust pipe, and the second ring flange is fixed with the connecting pipe, and first ring flange passes through bolt and second ring flange fixed connection. The ring grooves are formed in the outer sides of the first flange plate and the second flange plate, the front end and the rear end of the bottom of each semicircular plate are respectively inserted into the ring grooves from the upper end and the lower end of the first flange plate and the lower end of the second flange plate, the two semicircular plates are butted to form a whole ring to cover the joint of the first flange plate and the second flange plate, the fixed blocks at the two ends of the two semicircular plates are fixedly connected through screws, and the joint of the first flange plate and the second flange plate is reinforced. The inner side of the semicircular plate is provided with a groove, a sealing gasket is fixed in the groove, after the semicircular plate is inserted into the groove, the sealing gasket presses the joint of the first flange plate and the second flange plate, and the sealing gasket seals the joint of the first flange plate and the second flange plate to prevent air leakage.

Drawings

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

FIG. 2 is a schematic view of the connection structure of the semicircular plate of the present invention;

FIG. 3 is a schematic front sectional view of the semicircular plate of the present invention;

fig. 4 is a schematic structural view of the first flange and the second flange of the present invention;

fig. 5 is a schematic side sectional view of the semicircular plate of the present invention.

In the figure: 1. a base; 2. a motor; 3. a blast box; 4. an exhaust duct; 5. a first flange plate; 6. a bolt; 7. a semicircular plate; 8. a connecting pipe; 9. a second flange plate; 10. a protective cover; 11. a driven wheel; 12. a transmission belt; 13. a driving wheel; 14. a fixed block; 15. an annular groove; 16. a screw; 17. a groove; 18. and a gasket.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 5, the present invention provides an embodiment: a Roots blower comprises a base 1, a semicircular plate 7, a connecting pipe 8, a driven wheel 11 and a driving wheel 13, wherein a motor 2 is fixed at the rear end of the upper surface of the base 1, as is well known to those skilled in the art, the power provided by the motor 2 is common, and the power belongs to conventional means or common knowledge, and is not described herein any more, and the skilled in the art can carry out any selection according to the needs or convenience. The front end of 1 upper surface of base is fixed with bellows 3, the roots's fan is constituteed with the motor 2 is supporting to bellows 3, the inside impeller that is provided with of

bellows

3, 2 one end of motor are installed action wheel 13 through the rotation of first transmission shaft, 3 one end of bellows are installed from driving wheel 11 through the rotation of secondary drive shaft, it is connected with the impeller rotation in bellows 3 to follow driving wheel 11, action wheel 13 and connect through drive belt 12 from between the driving wheel 11, drive action wheel 13 rotation after the motor 2 circular telegram, action wheel 13 rotates from driving wheel 11 through drive belt 12 drive, from the impeller rotation work in the bellows 3 of driving wheel 11 drive. A protective cover 10 is fixed on one side of the upper surface of the base 1, the driving wheel 13 and the driven wheel 11 are covered by the protective cover 10, and the driving wheel 13 and the driven wheel 11 are protected by the protective cover 10.

The air-out end of blast box 3 is fixed with exhaust pipe 4, exhaust pipe 4 and 3 inside intercommunications of blast box, the front end of exhaust pipe 4 is fixed with first ring flange 5, the rear end of connecting pipe 8 is fixed with second ring flange 9, second ring flange 9 passes through

bolt

6 and 5 butt joints of first ring flange, all seted up on first ring flange 5 and the second ring flange 9 with 6 assorted bolt holes of bolt, the nut is installed to the one end screw thread that bolt 6 passed the bolt hole, the wind of following exhaust pipe 4 exhaust gets into and carries away in the connecting pipe 8. Connecting pipe 8 and exhaust pipe 4 intercommunication, ring channel 15 has all been seted up to first ring flange 5 and second ring flange 9 different surfaces at both ends, recess 17 has been seted up to semicircle board 7 inboard, the laminating is fixed with sealed pad 18 in the recess 17, both ends inject ring channel 15 from the upper and lower end of first ring flange 5 and second ring flange 9 respectively around two semicircle boards 7 bottoms, two semicircle boards 7 butt joint are constituteed the whole ring and are covered the junction of first ring flange 5 and second ring flange 9, sealed pad 18 is pushed down the junction of first ring flange 5 and second ring flange 9, sealed pad 18 is sealed the junction of first ring flange 5 and second ring flange 9, prevent gas leakage. The two ends of the opposite side of the two semicircular plates 7 are respectively fixed with a fixing block 14, the two fixing blocks 14 are fixedly connected through screws 16, screw holes matched with the screws 16 are formed in the fixing blocks 14, and the joint of the first flange plate 5 and the second flange plate 9 is reinforced through the two semicircular plates 7 to share the force borne by the bolt 6.

The working principle is as follows: the motor 2 is electrified to drive the driving wheel 13 to rotate, the driving wheel 13 drives the driven wheel 11 to rotate through the transmission belt 12, the driven wheel 11 drives the impeller in the blast box 3 to rotate, and the air exhausted from the exhaust pipe 4 enters the connecting pipe 8 to be conveyed away. The two semicircular plates 7 are butted to form a complete circular ring to cover the joint of the first flange plate 5 and the second flange plate 9, and the joint of the first flange plate 5 and the second flange plate 9 is reinforced through the two semicircular plates 7 to share the force born by the bolt 6. The sealing gasket 18 presses the joint of the first flange 5 and the second flange 9, and the sealing gasket 18 seals the joint of the first flange 5 and the second flange 9 to prevent air leakage.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a roots blower, includes base (1), semicircle board (7), connecting pipe (8), follows driving wheel (11) and action wheel (13), its characterized in that: the rear end of base (1) upper surface is fixed with motor (2), the front end of base (1) upper surface is fixed with bellows (3), the air-out end of bellows (3) is fixed with exhaust pipe (4), exhaust pipe (4) and bellows (3) inside intercommunication, the front end of exhaust pipe (4) is fixed with first ring flange (5), the rear end of connecting pipe (8) is fixed with second ring flange (9), second ring flange (9) dock with first ring flange (5) through bolt (6), connecting pipe (8) and exhaust pipe (4) intercommunication, ring channel (15) have all been seted up to the surface that first ring flange (5) and second ring flange (9) are different in both ends, semicircle board (7) inboard is seted up flutedly (17), laminating is fixed with sealed pad (18) in recess (17), two both ends are followed first ring flange (5) and second ring flange (9) respectively around semicircle board (7) bottom ) The upper end and the lower end of the semicircular plate (7) are inserted into the annular groove (15), the two ends of one side, opposite to the two semicircular plates (7), are respectively fixed with a fixed block (14), and the two fixed blocks (14) are fixedly connected through screws (16).

2. A roots blower as claimed in claim 1, wherein: motor (2) one end is rotated through first transmission shaft and is installed action wheel (13), and blast box (3) one end is rotated through the second transmission shaft and is installed from driving wheel (11), and action wheel (13) and follow are connected through drive belt (12) between driving wheel (11).

3. A roots blower as claimed in claim 1, wherein: a protective cover (10) is fixed on one side of the upper surface of the base (1), and the driving wheel (13) and the driven wheel (11) are covered by the protective cover (10).

4. A roots blower as claimed in claim 1, wherein: bolt holes matched with the bolts (6) are formed in the first flange plate (5) and the second flange plate (9), and nuts are installed on the bolts (6) through threads at one ends of the bolt holes.

5. A roots blower as claimed in claim 1, wherein: the two semicircular plates (7) are butted to form a complete circular ring to cover the joint of the first flange plate (5) and the second flange plate (9), and the sealing gasket (18) presses the joint of the first flange plate (5) and the second flange plate (9).

6. A roots blower as claimed in claim 1, wherein: and the fixed block (14) is provided with a screw hole matched with the screw (16).