CN202082368U - Gearbox for high-efficiency double-impeller aerator - Google Patents

Abstract

The utility model discloses a reduction gearbox for an efficient dual-impeller aerator. The efficient dual-impeller aerator consists of a motor cover (1), a motor (7), a reduction gearbox (2), dual impellers (6), a support rod (3) and a floating ball (4); the motor (7) and the motor cover (1) are arranged above a box body (12) of the reduction gearbox (2); the motor cover externally covers the motor (7); the box body (12) of the reduction gearbox (2) is connected with one end of the support rod (3) in a trisection mode; the floating ball (4) is arranged on the other end of the support rod (3); a connecting flange (5) is arranged on an impeller shaft (28) of the reduction gearbox (2) through bolts, a spring washer, a pressure gasket and keys; and the dual impellers (6) are arranged below the connecting plate (5) through bolts and a spring washer. The reduction gearbox has the advantages of simple structure, small volume, light weight, low production cost, high transmission efficiency and low operating noise, and is easy to manufacture,.

Description

Gearbox for high-efficiency double-impeller aerator

technical field

The utility model relates to an aerator, in particular to a reduction box of a high-efficiency double impeller aerator.

Background technique

At present, with the large-scale development of the aquaculture industry and the vigorous promotion and use of fishery machinery, the aerator has become an indispensable farming machinery in the aquaculture industry; the existing impeller aerator in the market is basically composed of a motor, a gear reducer , impeller, support rod and floating ball, etc. Although the oxygen increasing capacity and power efficiency are the highest among the current aerators, they are all products designed in the 1980s and early 1990s, and the manufacturer has not further improved them. Research and development; as far as the gear reducer is concerned, the number of parts is large, the structure is complex, the volume is large, the quality is heavy, the installation and maintenance are inconvenient, the production cost is high, and the user's investment cost is high.

Contents of the invention

The purpose of this utility model is to provide a high-efficiency double-impeller aerator gearbox, which has compact structure, low running noise, small volume, light weight, low user investment cost, convenient use and maintenance, and high economic benefits.

The technical solution of the utility model is: the high-efficiency double-impeller aerator is composed of a motor cover, a motor, a reduction box, a double impeller, a support rod and a floating ball, and a motor and a motor cover are installed above the box of the reduction box, and the motor cover On the outside of the motor, one end of the support rod is connected in three equal parts to the box of the reduction box, and the other end of the support rod is installed with a floating ball. The double impellers are installed under the connecting flange through bolts and spring washers; the reduction box includes a box body, impeller shaft, impeller shaft gear, bearing seat assembly, gear shaft and gears, and the bolts and Install the motor with the spring washer, install the gasket between the motor and the box, install the motor gear on the motor shaft through keys and bolts, install the gear shaft with key grooves inside the box, and the gear shaft is located in the center of the two bearing holes. Install the key and gear at the keyway position of the gear shaft, the gear meshes with the motor gear, and install bearings at both ends of the gear shaft. The bearing at one end of the gear shaft is placed in the box hole to the shoulder, and the bearing at the other end of the gear shaft is placed in the box. In the hole, the outer part is installed with the bearing cover of the trademark brand through bolts and spring washers, the sealing ring is installed in the groove of the bearing cover, the bearing seat assembly is installed at the lower part of the box through bolts and spring washers, and the outer part of the bearing seat assembly The circle and the inner hole of the box are positioned, the sealing ring is installed in the sealing ring groove of the bearing seat assembly, the impeller shaft is installed in the bearing seat assembly, and the end of the impeller shaft extending into the box is fixed by a retaining ring on the impeller shaft gear. The impeller shaft gear cooperates with the involute external spline at the end of the impeller shaft through the involute internal spline, and the impeller shaft gear meshes with the gear shaft.

In the reduction box of the high-efficiency double-impeller aerator of the present invention, the bearing seat assembly includes a retaining ring for the hole, a bearing, a bearing seat and a skeleton oil seal, and an impeller shaft with bearings at both ends is installed in the bearing seat. The impeller shaft passes through the center of the bearing seat, and the retaining ring is used to block the movement of the bearing in the retaining ring groove of the bearing hole at one end of the bearing seat, and several skeleton oil seals are installed in the bearing hole at the other end of the bearing seat to the shoulder , a plurality of skeleton oil seals are located at the lower end of the bearing seat, the lips of the plurality of skeleton oil seals face inward and embrace the impeller shaft, install the connecting flange at the lower end of the impeller shaft, and install the key in the keyway connecting the flange and the impeller shaft, The connecting flange is fastened by screwing bolts through spring washers and pressure washers into the threaded holes of the impeller shaft.

In the reduction box of the high-efficiency double-impeller aerator of the present invention, the bearing seat is provided with a bearing hole and a skeleton oil seal hole, the upper end of the bearing hole is processed with a retaining ring groove, and a sealing ring is processed on the plane connecting the bearing seat and the box body. There are several equal parts of connecting ears and installation holes distributed on the part where the bearing seat is connected with the box body. The bearing seat is connected with the box body through the equal parts of the connection ears and mounting holes. There is a shoulder on the skeleton oil seal hole.

In the reduction box of the high-efficiency double impeller aerator of the present invention, the connecting flange is provided with a plurality of equally divided mounting holes, a plurality of equally divided counterbores and bosses.

In the reduction box of the high-efficiency double-impeller aerator of the present invention, another transmission mode in which the impeller shaft gear is installed on the impeller shaft is: the impeller shaft gear cooperates with the impeller shaft through a key, and at the end of the impeller shaft Install the shaft retaining ring to secure the impeller shaft gear.

In the reduction box of the high-efficiency double-impeller aerator of the present invention, the motor gear, gear, gear shaft and impeller shaft gear are all helical helical gears, the rotation direction of the motor gear and the impeller shaft gear is consistent, and the gear and gear shaft The rotation direction of the motor gear and the impeller shaft gear is opposite to that of the gear and the gear shaft left and right, the helical angle of the motor gear and the gear is equal, and the helical angle of the gear shaft and the impeller shaft gear is equal.

In the reduction box of the high-efficiency double-impeller aerator of the present utility model, a fuel filling plug, an oil drain plug and an oil detection plug with vent holes are installed on the casing.

In the reduction box of the high-efficiency double impeller aerator of the present invention, a trademark plate is installed in the counterbore of the bearing cover.

When working, the motor drives the gear to rotate through the motor gear, the gear drives the gear shaft to rotate through the key, the rotating gear shaft drives the impeller shaft gear to rotate, the impeller shaft gear drives the impeller shaft to rotate through the involute spline or key, and the impeller shaft drives through the key The connecting flange rotates, and finally the connecting flange drives the double impeller to rotate.

The utility model has the following advantages: ① adopting a reasonable structural form makes the manufacture simple, small in size, light in weight, low in production cost, convenient in maintenance and installation, and reduces user investment costs; ② adopts an optimally designed helical gear to improve transmission efficiency The working noise is reduced; ③The impeller shaft gear and the impeller shaft are connected by involute splines, which is easy to assemble and reduces the thickness of the gear; ④The retaining ring structure is adopted, which is easy to assemble and reduces the potential safety hazard caused by human error; ⑤Adopts a sealing ring And skeleton oil seal, effectively prevent the occurrence of oil leakage.

Description of drawings

Fig. 1 is the appearance front view of the utility model.

Figure 2 is a cross-sectional view of the gear box.

FIG. 3 is a top view of FIG. 2 .

Figure 4 is a sectional view of the bearing housing assembly.

Figure 5 is a sectional view of the bearing housing.

FIG. 6 is a top view of FIG. 5 .

Figure 7 is a front view of the connecting flange.

FIG. 8 is a top rotated sectional view of FIG. 7 .

Fig. 9 is a partial cross-sectional view of another transmission cooperation mode of the impeller shaft gear.

In the figure: 1. Motor cover, 2. Gear box, 3. Support rod, 4. Floating ball, 5. Connecting flange, 6. Double impeller, 7. Motor, 8. Motor gear, 9. Gasket, 10. Oil inspection plug, 11, retaining ring for shaft, 12, box body, 13, impeller shaft gear, 14, oil drain plug, 15, bearing housing assembly, 16, sealing ring, 17, bearing cover, 18, trademark plate, 19, sealing ring, 20, bearing, 21, gear shaft, 22, key, 23, gear, 24, oil plug, 25, retaining ring for hole, 26, bearing, 27, bearing seat, 28, impeller shaft, 29, Skeleton oil seal, 30, key, 31, pressure pad, 32, retaining ring groove, 33, sealing ring groove, 34, bearing hole, 35, shoulder stopper, 36, skeleton oil seal hole, 37, connecting ear, 38, mounting hole, 39, counterbore, 40, boss, 41, mounting hole, 42, key.

Detailed ways

As shown in Figure 1-8, the high-efficiency double impeller aerator is composed of a motor cover 1, a motor 7, a gearbox 2, a double impeller 6, a support rod 3 and a floating ball 4, and the motor is installed above the box 12 of the gearbox 2 7 and the motor cover 1, the motor cover 1 covers the outside of the motor 7, the casing 12 of the reduction box 2 connects one end of the support rod 3 in three equal parts, the other end of the support rod 3 is installed with a floating ball 4, and the The connecting flange 5 is installed on the impeller shaft 28 through bolts, spring washers, pressure pads and keys, and the double impeller 6 is installed under the connecting flange 5 through bolts and spring washers; the reduction box 2 includes a casing 12, an impeller shaft 28. The impeller shaft gear 13, the bearing seat assembly 15, the gear shaft 21 and the gear 23, the motor 7 is installed on the top of the box body 12 through bolts and spring washers, and the gasket 9 is installed between the motor 7 and the box body 12. The motor gear 8 is installed on the shaft of the motor 7 through keys and bolts, and a gear shaft 21 with a keyway is installed inside the box body 12. The gear shaft 21 is located at the center of the two bearing holes, and the keyway position of the gear shaft 21 is installed with a key 22 and a gear. 23. The gear 23 meshes with the motor gear 8, and the two ends of the gear shaft 21 are installed with bearings 20. One end of the gear shaft 21 is installed in the box hole by the bearing of the gear 23 to the shoulder, and the bearing at the other end of the gear shaft 21 is installed in the box hole. Inside and outside, the bearing cover 17 that can be embedded in the trademark plate 18 is installed through bolts and spring washers, the sealing ring 19 is installed in the groove of the bearing cover 17, and the bearing seat assembly 15 is installed on the lower part of the box body 12 through bolts and spring washers. The outer circle of the seat assembly 15 is positioned with the inner hole of the box body 12, the sealing ring 16 is installed in the sealing ring groove of the bearing seat assembly 15, the impeller shaft 28 is installed in the bearing seat assembly 15, and the impeller shaft 28 extends into the box body 12 The inner end warps the shaft with a retaining ring 11 to fix the impeller shaft gear 13, the impeller shaft gear 13 cooperates with the involute external spline of the impeller shaft end through an involute internal spline, and the impeller shaft gear 13 meshes with the gear shaft 21.

In the reduction box of the high-efficiency double-impeller aerator of the present invention, the bearing seat assembly 15 includes a retaining ring 25 for the hole, a bearing 26, a bearing seat 27 and a skeleton oil seal 29, and the two ends of the bearing seat 27 are installed There is an impeller shaft 28 with a bearing 26, and the impeller shaft 28 passes through the center of the bearing seat 27, and the retaining ring 25 is used to block the movement of the bearing in the mounting hole in the retaining ring groove 32 of the bearing hole 34 at one end of the bearing seat 27. A plurality of skeleton oil seals 29 are installed in the bearing hole 34 at the other end to the shoulder stop 35. The plurality of skeleton oil seals 29 are located at the lower end of the bearing seat 27. The lips of the plurality of skeleton oil seals 29 face inward and hug the impeller shaft 28. The lower end of the impeller shaft 28 is installed with the connecting flange 5, and the key 30 is installed in the keyway between the connecting flange 5 and the impeller shaft 28, and the connecting flange 5 is screwed into the threaded hole of the impeller shaft 28 through the bolt through the spring washer and the pressure pad 31 And fasten.

In the reduction box of the high-efficiency double-impeller aerator of the present invention, the bearing seat 27 is provided with a bearing hole 34 and a skeleton oil seal hole 36, and the upper end of the bearing hole 34 is processed with a retaining ring groove 32, and the bearing seat 27 and the box body 12 The sealing ring groove 33 is processed on the connecting plane, and a plurality of equally divided connecting ears 37 and mounting holes 38 are distributed on the part where the bearing seat 27 is connected with the box body 12. The bearing seat 27 is connected to the The casing 12 is connected, and a shoulder 35 is left on the skeleton oil seal hole 36 .

In the reduction box of the high-efficiency double impeller aerator of the present invention, the connecting flange 5 is provided with a plurality of equally divided mounting holes 41 , a plurality of equally divided counterbore holes 39 and bosses 40 .

In the reduction box of the high-efficiency double-impeller aerator of the present invention, another transmission mode in which the impeller shaft gear 13 is installed on the impeller shaft 28 is: the impeller shaft gear 13 cooperates with the impeller shaft 28 through the key 42, and the The end of the impeller shaft 28 is fitted with a retaining ring 11 for fixing the impeller shaft gear 13 .

In the reduction box of the high-efficiency double impeller aerator of the present invention, the motor gear 8, gear 23, gear shaft 28 and impeller shaft gear 13 are all helical helical gears, and the rotation direction of the motor gear 8 and the impeller shaft gear 13 Consistent, the direction of rotation of the gear 23 and the gear shaft 28 is consistent, the direction of rotation of the motor gear 8 and the impeller shaft gear 13 is opposite to that of the gear 23 and the gear shaft 28, the helical angles of the motor gear 8 and the gear 23 are equal, and the direction of rotation of the gear shaft 28 and the helix angle of impeller shaft gear 13 are equal.

In the speed reduction box of the high-efficiency double impeller aerator of the present utility model, on the casing 12, the oil filling plug 24, the oil drain plug 14 and the oil detection plug 10 with air holes are installed.

In the reduction box of the high-efficiency double impeller aerator of the present utility model, in the counterbore of bearing cover 17, trademark plate 18 is installed.

During work, the motor 7 drives the gear 23 to rotate through the motor gear 8, the gear 23 drives the gear shaft 21 to rotate through the key, the rotating gear shaft 21 drives the impeller shaft gear 13 to rotate, and the impeller shaft gear 13 drives the impeller shaft through the involute spline or key. The wheel shaft 28 rotates, and the impeller shaft 28 drives the connecting flange 5 to rotate through the key, and finally the connecting flange 5 drives the double impeller 6 to rotate.

Claims (8)

1. The reduction box of the high-efficiency double-impeller aerator, the high-efficiency double-impeller aerator consists of a motor cover (1), a motor (7), a reduction box (2), a double impeller (6), a support rod (3) and a floating ball (4) Composition, the motor (7) and the motor cover (1) are installed above the box body (12) of the reduction box (2), the motor cover (1) is covered outside the motor (7), and the reduction box (2) One end of the support bar (3) is connected in three equal parts on the box body (12), and the other end of the support bar (3) is installed with a floating ball (4). Pads, pressure pads and keys are used to install the connecting flange (5), and the double impeller (6) is installed under the connecting flange (5) through bolts and spring washers; it is characterized in that: the reduction box (2) includes a box body (12), impeller shaft (28), impeller shaft gear (13), bearing housing assembly (15), gear shaft (21) and gear (23), are installed on the top of the box (12) by bolts and spring washers For the motor (7), install a gasket (9) between the motor (7) and the box (12), install the motor gear (8) on the shaft of the motor (7) through keys and bolts, and install it on the box (12) A gear shaft (21) with a keyway is installed inside the gear shaft (21), the gear shaft (21) is located in the center of the two bearing holes, the keyway position of the gear shaft (21) is installed with a key (22) and a gear (23), and the gear (23) meshes with the motor Gear (8), the two ends of gear shaft (21) are equipped with bearings (20), and one end of gear shaft (21) is packed into the casing hole by the bearing of gear (23) to the shoulder, and the other end of gear shaft (21) is The bearing is put into the box hole, and the bearing cover (17) is installed on the outside through bolts and spring washers. Install the bearing seat assembly (15), the outer circle of the bearing seat assembly (15) and the inner hole of the box (12) are positioned, and the sealing ring (16) is installed in the sealing ring groove of the bearing seat assembly (15), and the bearing The impeller shaft (28) is installed in the seat assembly (15), and the end of the impeller shaft (28) extending into the box (12) fixes the impeller shaft gear (13) through the shaft retaining ring (11), and the impeller shaft gear ( 13) The impeller shaft gear (13) meshes with the gear shaft (21) through the cooperation of the involute internal spline and the involute external spline at the shaft end of the impeller. 2. The reduction box of the high-efficiency double-impeller aerator according to claim 1, characterized in that: the bearing seat assembly (15) includes a retaining ring (25) for the hole, a bearing (26), a bearing seat ( 27) and skeleton oil seal (29), install the impeller shaft (28) with bearings (26) at both ends in the bearing seat (27), the impeller shaft (28) passes through the center of the bearing seat (27), and (27) Use a retaining ring (25) in the installation hole in the retaining ring groove (32) of the bearing hole (34) at one end to block the movement of the bearing, and in the bearing hole (34) at the other end of the bearing housing (27) Multiple skeleton oil seals (29) are installed at (35), the multiple skeleton oil seals (29) are located at the lower end of the bearing housing (27), and the lips of the multiple skeleton oil seals (29) face inward and hug the impeller shaft (28) , install the connecting flange (5) at the lower end of the impeller shaft (28), install the key (30) in the keyway between the connecting flange (5) and the impeller shaft (28), and the connecting flange (5) passes through the spring through the bolt The pad and pressure pad (31) are screwed into the threaded hole of the impeller shaft (28) and tightened. 3. The reduction box of the high-efficiency double impeller aerator according to claim 2, characterized in that: the bearing seat (27) is provided with a bearing hole (34) and a skeleton oil seal hole (36), and the bearing hole (34 ) is processed with retaining ring groove (32) at the upper end, sealing ring groove (33) is processed on the plane connecting bearing seat (27) and box body (12), and distributed on the part where bearing seat (27) is connected with box body (12) A plurality of equally divided connecting ears (37) and mounting holes (38), the bearing seat (27) is connected with the box body (12) through the equally divided connecting ears (37) and mounting holes (38), and the skeleton oil seal hole (36 ) with a shoulder stop (35). 4. The reduction box of the high-efficiency double impeller aerator according to claim 1, characterized in that: the connecting flange (5) is provided with a plurality of equally divided installation holes (41), a plurality of equally divided counterbore (39) and boss (40). 5. The reduction box of the high-efficiency double-impeller aerator according to claim 1, characterized in that: another transmission mode in which the impeller shaft gear (13) is installed on the impeller shaft (28) is: the impeller shaft The gear (13) cooperates with the impeller shaft (28) through the key (42), and the shaft retaining ring (11) is installed at the end of the impeller shaft (28) to fix the impeller shaft gear (13). 6. The reduction box of the high-efficiency double impeller aerator according to claim 1, characterized in that: the motor gear (8), the gear (23), the gear shaft (28) and the impeller shaft gear (13) are all It is a helical helical gear, the motor gear (8) and the impeller shaft gear (13) have the same rotation direction, the gear (23) and the gear shaft (28) have the same rotation direction, the motor gear (8) and the impeller shaft gear (13) The direction of rotation is opposite to that of the gear (23) and the gear shaft (28), the helix angles of the motor gear (8) and the gear (23) are equal, and the helix angles of the gear shaft (28) and the impeller shaft gear (13) are equal . 7. The reduction box of the high-efficiency double impeller aerator according to claim 1, characterized in that: a fuel plug (24) with vent holes, an oil drain plug (14) and an oil detection plug are installed on the box body (12) Plug (10). 8. The reduction box of the high-efficiency double impeller aerator according to claim 1, characterized in that: a trademark plate (18) is installed in the counterbore of the bearing cover (17).

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