CN219673242U - Oil-tight helical gear reducer - Google Patents

Abstract

The utility model relates to the technical field of speed reducers and discloses an oil-tight helical gear speed reducer which comprises a motor, wherein a first flange is fixedly connected to the outer surface of the motor, a conical ring is fixedly connected to the end face of the first flange, a second flange is attached to the end face of the first flange, a groove is formed in the end face of the second flange, a conical sealing ring is installed in the groove, one end of the second flange is fixedly connected with a speed reduction box, the speed reduction box is rotationally connected with a motor rotating shaft, and an oil thrower disc is fixedly connected to the shaft face of the motor rotating shaft. According to the utility model, the first flange and the second flange are in butt joint, so that the conical ring is inserted into the conical sealing ring, and the first flange and the second flange are connected by bolts, so that the sealing performance of the reduction gearbox is enhanced, and the oil slinger are arranged to rotate along with the motor rotating shaft and the output shaft rod, so that lubricating oil can be prevented from flowing to the motor rotating shaft and the interface of the output shaft rod and the reduction gearbox, and dynamic sealing is realized.

Description

Oil-tight helical gear reducer

Technical Field

The utility model relates to the technical field of speed reducers, in particular to an oil-leakage-free helical gear speed reducer.

Background

The helical gear speed reducer is a novel speed reduction transmission device. The optimization is adopted, the advanced design concept of a module combination system is adopted, and the device has the characteristics of small volume, light weight, large transmission torque, stable starting, fine gear ratio grading and the like, and can be arbitrarily connected and selected in various installation positions according to the requirements of users.

According to the search, chinese patent literature, bulletin number: CN216200177U discloses a parallel shaft helical gear reducer without oil leakage, the motor drives the rotating shaft, the rotating gear on the rotating shaft rotates along with the rotating shaft, then the driven gear rotates along with the rotating shaft, and then the output shaft is driven to rotate, so as to complete the speed reducing effect; the arrangement of the reinforcing strips enables the tightness of the shell to be better, and oil leakage phenomenon can not occur in the using process. But the sealing is enhanced only by providing reinforcing strips on both sides of the housing, so that a very good sealing effect is not achieved. In view of this, we propose an oil-tight helical gear reducer to solve the above problems.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides an oil-leakage-free helical gear reducer which has the advantages of good sealing effect, oil leakage avoidance and the like, and solves the technical problems.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an oil leak-proof helical gear speed reducer, includes the motor, the surface fixed connection flange No. one of motor, the annular taper of fixed connection on the terminal surface of flange No. one, laminating No. two flanges on the terminal surface of flange No. one, set up the slot on the terminal surface of flange No. two, the conical seal ring of inslot installation, the one end fixed connection reducing gear box of No. two flanges, the motor pivot is connected in the reducing gear box rotation, fixed connection oil slinger on the axial face of motor pivot, fixed connection oil slinger on the terminal surface of oil slinger, the one end fixed connection helical gear of motor pivot, helical gear meshing No. two helical gears of No. one, the central fixed connection helical gear of helical gear meshing No. two, helical gear meshing connection is big helical gear, the central fixed connection output axostylus axostyle of big helical gear, the front installation end cover of reducing gear box, the internal surface of end cover sets up sealed pad.

Preferably, one end of the motor rotating shaft far away from the motor is fixedly connected with a first bevel gear.

Through above-mentioned technical scheme, make the motor shaft rotate after the motor starts, the motor shaft drives the bevel gear rotation No. one, the bevel gear drives No. two bevel gears rotation, no. two bevel gears drive little helical gear rotation, little helical gear drives big helical gear rotation, big helical gear drives output axostylus axostyle rotation, because the rack quantity of little helical gear is less than the quantity of big helical gear, and the rack quantity of No. one bevel gear is also less than the rack quantity of No. two bevel gears, so the rotational speed of output axostylus axostyle is far less than the rotational speed of motor shaft after the transmission, and be in the vertical state with the rotational direction of output axostylus axostyle through setting up the bevel gear of No. one bevel gear and No. two bevel gears, reduce whole gear motor's volume.

Preferably, the outer surface of the conical ring is closely attached to the conical sealing ring, and the groove is in clearance fit with the conical ring.

Through above-mentioned technical scheme, when this gear motor is assembled, through with flange No. one with the butt joint of flange No. two to make the toper ring insert in the toper seal ring, the toper seal ring is located the slot, so when installing the bolt between flange No. one and flange No. two and be connected, make the toper ring compress tightly the toper seal ring constantly along with the tightening of bolt, so be favorable to reinforcing the leakproofness of reducing gear box.

Preferably, a sealing gasket is tightly attached between the reduction gearbox and the end cover.

Through above-mentioned technical scheme, smear the sealant around the port of reducing gear box, then paste the sealed pad around the port of reducing gear box, can link together end cover and reducing gear box through using supporting bolt, closely laminate the sealed pad in junction for lubricating oil in the reducing gear box can not leak.

Preferably, the shaft surface of the output shaft rod is fixedly connected with an oil thrower, and a plurality of oil thrower plates are circumferentially arranged on the end surface of the oil thrower around the shaft center of the oil thrower.

Through above-mentioned technical scheme, after the motor starts, the motor shaft rotates, also rotates through transmission back output axostylus axostyle, so make motor shaft epaxial oil slinger and the oil slinger on the output axostylus axostyle all can follow and rotate, oil slinger rotation can drive a plurality of and throw the oil board and rotate, so can prevent that lubricating oil from flowing to motor shaft and output axostylus axostyle and reducing gear box's interface department, realize dynamic seal, further strengthened the sealed effect of reducing gear box.

Compared with the prior art, the utility model provides the oil-tight helical gear reducer, which has the following beneficial effects:

1. according to the utility model, the first flange and the second flange are in butt joint to enable the conical ring to be inserted into the conical sealing ring, the first flange and the second flange are connected through bolts, and the conical ring is continuously pressed against the conical sealing ring along with tightening of the bolts, so that the sealing performance of the reduction gearbox is enhanced, the sealing gasket is arranged between the reduction gearbox and the end cover to enable lubricating oil not to leak, and the oil slinger are arranged to rotate along with the motor rotating shaft and the output shaft rod, so that the lubricating oil can be prevented from flowing to the motor rotating shaft and the interface of the output shaft rod and the reduction gearbox, dynamic sealing is realized, and the reduction gearbox of the reduction gearbox has very strong sealing performance due to the integral structure, and oil leakage phenomenon is avoided.

2. According to the utility model, after the motor is started, the motor rotating shaft rotates, the first bevel gear is driven by the motor rotating shaft to rotate, the second bevel gear is driven by the first bevel gear to rotate, the small bevel gear is driven by the second bevel gear to rotate, the large bevel gear is driven by the large bevel gear to rotate, and the output shaft lever is driven by the large bevel gear.

Drawings

FIG. 1 is a schematic cross-sectional view of the structure of the present utility model;

FIG. 2 is an enlarged partial schematic view of the structure of FIG. 1A;

fig. 3 is a schematic perspective view of the structure of the present utility model with the reduction gearbox and end cap removed.

Wherein: 1. a motor; 2. a first flange; 3. a conical ring; 4. a second flange; 5. a groove; 6. a conical sealing ring; 7. a reduction gearbox; 8. a motor shaft; 9. an oil slinger; 10. an oil slinging plate; 11. a first bevel gear; 12. no. two bevel teeth; 13. bevel pinion; 14. big helical gear; 15. an output shaft; 16. an end cap; 17. and a sealing gasket.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, an oil-tight helical gear reducer comprises a motor 1, a first flange 2 is fixedly connected to the outer surface of the motor 1, a conical ring 3 is fixedly connected to the end face of the first flange 2, a second flange 4 is attached to the end face of the first flange 2, a groove 5 is formed in the end face of the second flange 4, a conical sealing ring 6 is installed in the groove 5, one end of the second flange 4 is fixedly connected with a reduction gearbox 7, a motor rotating shaft 8 is rotatably connected to the reduction gearbox 7, an oil slinger 9 is fixedly connected to the shaft face of the motor rotating shaft 8, an oil slinger 10 is fixedly connected to the end face of the oil slinger 9, a first bevel gear 11 is fixedly connected to one end of the motor rotating shaft 8, a second bevel gear 12 is meshed and connected to the first bevel gear 11, a small bevel gear 13 is fixedly connected to the center of the second bevel gear 12, a large bevel gear 14 is meshed and connected to the center of the large bevel gear 14, an output 15 is fixedly connected to the center of the large bevel gear 14, an end cover 16 is installed on the front face of the reduction gearbox 7, and a sealing gasket 17 is arranged on the inner surface of the end cover 16.

Specifically, one end of the motor rotating shaft 8, which is far away from the motor 1, is fixedly connected with a first bevel gear 11. The advantages are, make motor shaft 8 rotate after motor 1 starts, motor shaft 8 drives oblique awl tooth 11 rotation, no. one oblique awl tooth 11 drives No. two oblique awl teeth 12 rotation, no. two oblique awl teeth 12 drive little helical gear 13 rotation, little helical gear 13 drives big helical gear 14 rotation, big helical gear 14 drives output axostylus axostyle 15 rotation, because the rack quantity of little helical gear 13 is less than the quantity of big helical gear 14, and the rack quantity of No. one oblique awl tooth 11 is also less than the rack quantity of No. two oblique awl teeth 12, so the rotational speed of output axostylus axostyle 15 is less than motor shaft 8's rotational speed after the transmission far away, and through setting up oblique awl tooth 11 and No. two oblique awl teeth 12 can be in the vertical state with motor shaft 8's rotation direction and output axostylus axostyle 15's rotation direction, reduce whole gear motor's volume.

Specifically, the outer surface of the conical ring 3 is closely attached to the conical sealing ring 6, and the groove 5 is in clearance fit with the conical ring 3. The advantage is, when this gear motor is assembled, through with flange 2 and No. two flange 4 butt joints to make conical ring 3 insert in the conical seal ring 6, conical seal ring 6 is located slot 5, so when installing the bolt and connect between flange 2 and No. two flange 4, make conical ring 3 constantly compress tightly conical seal ring 6 along with the tightening of bolt, so be favorable to reinforcing reduction box 7's leakproofness.

Specifically, the gasket 17 is closely attached between the reduction gearbox 7 and the end cover 16. The sealing gasket has the advantages that the sealing gasket 17 is stuck around the port of the reduction gearbox 7 after the sealing gasket is smeared around the port of the reduction gearbox 7, the end cover 16 and the reduction gearbox 7 can be connected by using the matched bolts, and the sealing gasket 17 is tightly attached to the connecting position, so that lubricating oil in the reduction gearbox 7 can not leak.

Specifically, the axial surface of the output shaft lever 15 is fixedly connected with the oil thrower 9, and a plurality of oil thrower plates 10 are circumferentially arranged on the end surface of the oil thrower 9 around the axis thereof. The advantage is, after motor 1 starts, motor shaft 8 rotates, and output axostylus axostyle 15 also rotates after the transmission, so make the last disc 9 of motor shaft 8 and the disc 9 on the output axostylus axostyle 15 all can follow and rotate, disc 9 rotates and can drive a plurality of disc 10 rotation, so can prevent lubricating oil to motor shaft 8 and output axostylus axostyle 15 and the interface department of reducing gear box 7 trickling, realize dynamic seal, further strengthened the sealed effect of reducing gear box 7.

When the speed reducer is used, firstly, when the speed reducer is assembled, the first flange 2 is in butt joint with the second flange 4, and the conical ring 3 is inserted into the conical sealing ring 6, the conical sealing ring 6 is positioned in the groove 5, so when bolts are installed between the first flange 2 and the second flange 4, the conical ring 3 is continuously pressed tightly against the conical sealing ring 6 along with tightening of the bolts, the tightness of the speed reducer box 7 is enhanced, sealing glue is smeared around the port of the speed reducer box 7, then the sealing gasket 17 is adhered around the port of the speed reducer box 7, the end cover 16 can be connected with the speed reducer box 7 by using the matched bolts, the sealing gasket 17 is tightly adhered to the joint, lubricating oil in the speed reducer box 7 cannot leak, when the speed reducer motor operates, the oil thrower 9 on the motor rotating shaft 8 and the oil thrower 9 on the output shaft 15 can follow rotation, the oil thrower 9 can drive a plurality of oil thrower plates 10 to rotate, and thus the lubricating oil can be prevented from flowing to the motor rotating shaft 8 and the joint of the output shaft 15 and the speed reducer box 7.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides an oil leak-free helical gear speed reducer, includes motor (1), its characterized in that: the utility model discloses a motor (1) external surface fixed connection flange (2), fixed connection conical ring (3) on the terminal surface of flange (2), laminating No. two flange (4) on the terminal surface of flange (2), set up slot (5) on the terminal surface of No. two flange (4), install toper sealing ring (6) in slot (5), the one end fixed connection reducing gear box (7) of No. two flange (4), motor pivot (8) are connected in reducing gear box (7) internal rotation, fixed connection oil slinger (9) on the axial face of motor pivot (8), fixed connection oil slinger (10) on the terminal surface of oil slinger (9), one end fixed connection helical cone tooth (11) of motor pivot (8), no. two helical gear (12) are connected in the center fixed connection helical gear (13) of helical gear (12), helical gear (13) meshing connection big helical gear (14), the center fixed connection helical gear (15) of helical gear (14) output end cover (16), end cover (16) are installed in positive end cover (16).

2. The oil tight helical gear reducer of claim 1, wherein: one end of the motor rotating shaft (8) far away from the motor (1) is fixedly connected with a first bevel gear (11).

3. The oil tight helical gear reducer of claim 1, wherein: the outer surface of the conical ring (3) is closely attached to the conical sealing ring (6), and the groove (5) is in clearance fit with the conical ring (3).

4. The oil tight helical gear reducer of claim 1, wherein: a sealing gasket (17) is tightly attached between the reduction gearbox (7) and the end cover (16).

5. The oil tight helical gear reducer of claim 1, wherein: the oil slinger is characterized in that the shaft surface of the output shaft rod (15) is fixedly connected with an oil slinger (9), and a plurality of oil slingers (10) are circumferentially arranged on the end surface of the oil slinger (9) around the shaft center of the oil slinger.