CN215719490U

CN215719490U - Improved mechanical supercharger structure and improved mechanical supercharger thereof

Info

Publication number: CN215719490U
Application number: CN202122098834.9U
Authority: CN
Inventors: 唐秦
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-01
Filing date: 2021-09-01
Publication date: 2022-02-01
Anticipated expiration: 2031-09-01

Abstract

The utility model discloses an improved mechanical supercharger structure, which comprises a supercharger shell, wherein a rotor cavity is arranged in the supercharger shell, and an air outlet port is arranged on the rotor cavity; a transmission shaft mounting body and an air inlet port are arranged on the supercharger shell; the connecting plate is provided with two holes which are coaxial with the two rotors respectively, and a first bearing and a sealing element are arranged in the holes; the connecting plate and the supercharger shell are mutually matched to form a rotor cavity; the gear ejecting piece and the connecting plate form a gear cavity together. The improved mechanical supercharger comprises a supercharging actuator and a cooling box, the supercharger shell, the transmission shaft mounting body, the air inlet port, the exhaust port and the cooling box are integrated into a whole, and the improved mechanical supercharger is cast and molded at the same time, reasonable in structural design, compact in arrangement, capable of improving subsequent processing and assembling efficiency and reducing cost.

Description

Improved mechanical supercharger structure and improved mechanical supercharger thereof

Technical Field

The utility model relates to the technical field of engines, in particular to an improved supercharger structure and an improved supercharger comprising the same.

Background

The mechanical supercharger is a double-rotor compression machine driven by gears, and the working cycle of air inlet, compression and exhaust is completed successively by means of mutual meshing of rotors. In the conventional mode, the gas backflow is realized by backflow and pressure equalization of high-pressure gas to the base circle volume at the moment when the cell volume is communicated with the exhaust port. The volume and the weight of a common mechanical supercharger in the current market are large, and the common mechanical supercharger is mostly split. The supercharger shell, the input shaft mounting body, the air inlet port, the exhaust port and the cooling box are independent parts respectively; the power input shaft is mounted on a part separated from the supercharger shell and is assembled with the supercharger shell into a whole through bolt connection, so that the part machining and assembling efficiency is low, and the cost is high. Meanwhile, the bolt is connected with a loosening risk, and a high-strength bolt is adopted for improving the reliability of the bolt connection and is matched with thread glue, so that the bolt still has a loosening risk. Thus, there is a need to design a new and improved supercharger structure and an improved supercharger.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an improved mechanical supercharger structure and an improved mechanical supercharger comprising the same, which can improve the production efficiency, reduce the cost and improve the reliability.

In order to solve the technical problems, the utility model provides an improved supercharger structure and an improved supercharger.

1. Improve mechanical supercharger structure includes bolted connection's booster casing, connecting plate, gear top member and shroud, its characterized in that:

the turbocharger comprises a supercharger shell, wherein a rotor cavity for mounting two rotors which are meshed with each other is arranged in the supercharger shell, and a triangular air outlet port is formed in the rotor cavity; a cooling box is arranged on the supercharger shell and is communicated with the rotor cavity, and a rectangular communication channel is arranged on one side of the side wall of the cooling box, which is close to the rotor cavity; the bottom of the cooling box is provided with air outlets, and the shapes, the number and the relative positions of the air outlets are matched with the end surface of an air inlet manifold of the engine; the other end of the supercharger shell is simultaneously provided with a transmission shaft mounting body and an air inlet port; a transmission shaft assembly is arranged in the transmission shaft mounting body, and the maximum diameter of the part of the transmission shaft assembly inserted into the transmission shaft mounting body is smaller than the diameter of the minimum central hole of the transmission shaft mounting body;

the connecting plate is provided with two holes which are coaxial with the two rotors respectively, and a first bearing and a sealing element are arranged in the holes; the space formed by the mutual matching of the connecting plate and the supercharger shell is a rotor cavity;

the gear ejecting piece and the connecting plate form a gear cavity together;

the cover cap is arranged on the cooling box and forms a closed space together with the cooling box, and a water inlet pipe and a water outlet pipe are arranged on the outer side of the cover cap; the inner side of the cover is provided with a condensing unit.

Preferably, a driving shaft, a driven shaft, a driving wheel and a driven wheel which are mutually matched are arranged in the rotor cavity: the end part of the driving wheel is provided with a driving gear, the end part of the driven wheel is provided with a driven gear, and the driving gear and the driven gear are meshed with each other; the driving shaft is connected with the transmission shaft through a coupler; the driving wheel and the spiral rotor I and the spiral rotor II which are provided with a plurality of blades respectively are arranged on the driven wheel, the driving wheel and the two ends of the driven wheel are respectively provided with a first bearing and a second bearing, the first bearing is arranged on one side close to a gear cavity, the second bearing is arranged on one side close to an air inlet port, the second bearing is arranged on one side close to the air inlet port, and the two ends of the second bearing are provided with sealing structures used for preventing lubricating grease from leaking.

Preferably, at least one sealed space is arranged at both ends of the driving wheel and the driven wheel, and the sealed space is arranged at one side close to the rotor cavity.

Preferably, a propeller shaft bearing assembly is provided between the propeller shaft and the mounting body.

An improved supercharger, which is characterized by comprising the improved supercharger structure.

Preferably, the improved supercharger comprises a supercharging actuator and a cooling tank; the supercharging actuator is provided with a supercharger shell and a transmission shaft mounting body, and the cooling box is arranged on the supercharger shell.

Preferably, the cooling box is provided with a cooling box cover, and the cooling box cover is provided with a water inlet pipe and a water outlet pipe; the water inlet pipe and the water outlet pipe are communicated with a condensing unit, the condensing unit is arranged in the cooling box, and liquid fluid circularly flowing is arranged in the condensing unit; liquid fluid flows in through the water inlet pipe and flows out through the water outlet pipe; an exhaust port is arranged at the bottom of the cooling tank.

Preferably, the structure of the propeller shaft bearing assembly comprises a propeller shaft bearing I or a propeller shaft bearing I and a propeller shaft bearing II, and a compensation elastic part is additionally arranged between the propeller shaft bearing I and the propeller shaft bearing II.

Preferably, the supercharger housing, the input shaft mounting body, the intake port, the exhaust port, and the cooling tank are integrated.

Compared with the prior art, the utility model has the beneficial effects that:

the mechanical supercharger has high mechanical reliability and compact structure, and is applied to more vehicle types. Meanwhile, the production efficiency is higher, and the manufacturing cost is more economic.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to be able to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural view of example 1;

FIG. 2 is a schematic sectional view of example 1;

FIG. 3 is a schematic view of an outlet port according to embodiment 1;

FIG. 4 is a schematic structural view of a propeller shaft assembly according to embodiment 1;

FIG. 5 is a schematic view showing the position of the lubricant filler port of embodiment 1;

FIG. 6 is a schematic structural view of embodiment 2;

FIG. 7 is a schematic sectional view showing the structure of embodiment 2;

FIG. 8 is a schematic view of a communicating channel in embodiment 2.

Wherein, 1, a supercharger shell; 2. a connecting plate; 3. a gear top; 4. an air outlet port; 5. a rotor cavity; 501. a lubricating oil filling port; 6. an air inlet port; 7. a transmission shaft mounting body; 201. an insert member; 202. a drive wheel; 203. a drive shaft; 204. a transmission shaft bearing I; 205. a compensating spring; 206. a coupling; 207. a second bearing; 208. a screw rotor I; 209. a first bearing; 210. a leak-proof member; 211. a gear cavity; 212. a drive shaft; 213. a driving gear; 214. a driven shaft; 215. a driven gear; 216. sealing the ferrule; 217. a seal member; 218. a screw rotor II; 219. a transmission shaft bearing II; 301. a cooling tank; 302. an exhaust port; 303. a pressurizing actuator; 304. a communication channel; 401. a condensing unit; 402. a cooling box cover; 403. a water inlet pipe; 404. and (5) discharging a water pipe.

Detailed Description

In order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings.

Example 1

Referring to fig. 1 to 5, the present invention discloses an improved supercharger structure, including:

the booster comprises a booster shell 1, wherein a rotor cavity 5 for mounting two rotors meshed with each other is arranged in the booster shell 1, an air outlet port 4 is arranged on the rotor cavity 5 corresponding to the exhaust position of the rotors, and the air outlet port 4 is similar to a triangle.

The other end of the supercharger housing 1 is provided with a transmission shaft mounting body 7 and an air inlet port 6 at the same time.

The connection plate 2 is provided with two holes coaxial with the two rotors, respectively, in which a first bearing 209 and a seal 217 are mounted.

Wherein, the space formed by the connecting plate 2 and the supercharger shell 1 is a rotor cavity 5. The gear top piece 3 and the connecting plate 2 form a gear cavity 211 together, a lubricating oil filling port 501 is arranged at a position on the gear top piece corresponding to the tooth shape of the gear, and a leakage-proof piece 210 is arranged, so that the sealing performance of the leakage-proof piece can be better prevented from lubricating oil overflowing.

A transmission shaft 203 is arranged in the transmission shaft mounting body 7, and a transmission shaft bearing group is arranged between the transmission shaft 203 and the transmission shaft mounting body 7. The transmission shaft bearing group comprises a transmission shaft bearing I204 and a transmission shaft bearing II 219 which are arranged on the power input shaft; the propeller shaft bearing I204 and the embedding piece 201 are installed on the power input wheel installation body, and the propeller shaft bearing II 219 is installed on the embedding piece 201.

Further preferably, the structure of the propeller shaft bearing assembly includes the following two types: (1) propeller shaft bearing I204. (2) The transmission shaft bearing I204 and the transmission shaft bearing II 219, and a compensation elastic part 205 is additionally arranged between the transmission shaft bearing I204 and the transmission shaft bearing II 219.

One end of the transmission shaft 203 is provided with a driving wheel 202, and the other end of the transmission shaft 203 is provided with a coupling 206.

Two parallel shafts are provided in the rotor chamber 5, and the shaft is called a drive shaft 212 connected to the drive shaft 203 via a coupling 206, and the other shaft is a driven shaft 214. The two ends of the driving wheel and the driven wheel are respectively provided with a first bearing 209 and a second bearing 207, the first bearing 209 is arranged at one side close to the gear cavity, the second bearing 207 is arranged at one side close to the air inlet port 6, and two ends of the second bearing 207 are provided with sealing structures for preventing lubricating grease from leaking. And sealing spaces are arranged at the two ends of the driving wheel and the driven wheel. The driving wheel and the driven wheel are respectively provided with a plurality of spiral rotors with blades, the rotor arranged on the driving wheel is a spiral rotor I208, and the rotor arranged on the driven wheel is a spiral rotor II 218.

Two driving gears 213 and driven gears 215 engaged with each other are disposed in the gear chamber 211, the driving gears 213 are mounted on the end of the driving gears, and the driven gears 215 are mounted on the end of the driven gears;

the first bearing 209 is installed on the side close to the gear chamber 211, and the sealed space is installed on the side close to the rotor chamber 5.

Preferably, the maximum outer diameter of the coupling 206 is smaller than the minimum central bore diameter of the drive shaft mounting body 7.

The supercharger shell 1, the connecting plate 2 and the gear top piece are connected through bolts, and the stability of the structure is guaranteed.

Supercharger housing 1, transmission shaft installation body 7, inlet port 6 and outlet port 4 in this scheme are integrated in an organic whole, and the casting shaping simultaneously, structural design is reasonable, arranges the compactness, improves follow-up processing and assembly efficiency, reduce cost.

Example 2

This embodiment is an improvement based on embodiment 2, and integrates embodiment 1 with a cooling tank 301, and as shown in fig. 1 and fig. 6 to 8, the present invention discloses an improved supercharger, preferably, which includes the improved supercharger structure of embodiment 1.

The improved supercharger comprises a supercharging actuator 303 and a cooling tank 301. The cooling box 301 is communicated with the rotor cavity 5, and a rectangular communication channel 304 is arranged on one side of the side wall of the cooling box 301 close to the rotor cavity; the bottom of the cooling box 301 is provided with air outlets, the shape, number and relative position of which are matched with the end surface (not shown) of the engine intake manifold.

The cooling tank 301 is arranged on the supercharger housing 1, a cooling tank cover 402 is arranged on the cooling tank 301, and a water inlet pipe 403 (water outlet pipe 404) and a water outlet pipe 404 (water inlet pipe 403) are arranged on the cooling tank cover 402; the water inlet pipe 403 (water outlet pipe 404) and the water outlet pipe 404 (water inlet pipe 403) are communicated with the condensing unit 401, the condensing unit 401 is arranged inside the cooling tank 301, and liquid fluid circularly flows in the condensing unit 401; liquid fluid flows in through the water inlet pipe 403 and flows out through the water outlet pipe 404; an exhaust port 302 is provided at the bottom of the cooling tank 301.

The supercharging actuator 303 is provided with a supercharger housing 1 and a transmission shaft mounting body 7, and a power input shaft, a coupling 206, a rotor cavity 5 and a gear cavity 211 are arranged in the supercharger housing 1 of the supercharger.

A lubricating oil filling port 501 is formed in the position, opposite to the tooth form, of the gear top piece, and a leakage-proof piece 210 is arranged to prevent lubricating oil from overflowing.

Above-mentioned mechanical supercharger's each part integration in an organic whole, the cast molding simultaneously, structural design is reasonable, arranges compactly, improves follow-up processing and assembly efficiency, reduce cost.

The technical solution related to the improved supercharger structure in the first embodiment is not described in detail herein.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The present invention is not described in detail, but is known to those skilled in the art.

Claims

1. The utility model provides an improve supercharger structure, improve supercharger structure includes bolted connection's booster casing, connecting plate, gear top member and shroud, its characterized in that:

the gear ejecting piece and the connecting plate form a gear cavity together;

2. The improved supercharger structure of claim 1, wherein the rotor chamber is provided with a driving shaft, a driven shaft, a driving wheel and a driven wheel which are mutually matched: the end part of the driving wheel is provided with a driving gear, the end part of the driven wheel is provided with a driven gear, and the driving gear and the driven gear are meshed with each other; the driving shaft is connected with the transmission shaft through a coupler; the driving wheel and the driven wheel are respectively provided with a spiral rotor I and a spiral rotor II with a plurality of blades, and both ends of the driving wheel and the driven wheel are respectively provided with a first bearing and a second bearing; the first bearing is installed at one side close to the gear cavity, the second bearing is installed at one side close to the air inlet port, and two ends of the second bearing are provided with sealing structures used for preventing lubricating grease from leaking.

3. The improved supercharger structure of claim 2, wherein the driving wheel and the driven wheel have at least one sealed space at both ends, and the sealed space is installed near the rotor cavity.

4. The improved supercharger structure of claim 3, wherein a driveshaft bearing assembly is disposed between the driveshaft and the mounting body.

5. An improved supercharger, characterized by comprising the improved supercharger structure according to any one of claims 1 to 4, wherein the improved supercharger comprises a supercharging actuator and a cooling tank; the supercharging actuator is provided with a supercharger shell and a transmission shaft mounting body, and the cooling box is arranged on the supercharger shell.

6. The improved supercharger of claim 5, wherein the cooling tank is provided with a cooling tank cover, and the cooling tank cover is provided with a water inlet pipe and a water outlet pipe; the water inlet pipe and the water outlet pipe are communicated with a condensing unit, the condensing unit is arranged in the cooling box, and liquid fluid circularly flowing is arranged in the condensing unit; liquid fluid flows in through the water inlet pipe and flows out through the water outlet pipe; an exhaust port is arranged at the bottom of the cooling tank.

7. The improved supercharger of claim 6, wherein the structure of the propeller shaft bearing assembly comprises a propeller shaft bearing I or a propeller shaft bearing I and a propeller shaft bearing II, and a compensation elastic element is additionally arranged between the propeller shaft bearing I and the propeller shaft bearing II.

8. The improved supercharger of claim 7, wherein the supercharger housing, input shaft mount, intake port, exhaust port and cooling tank are integrated.