TWM543309U - Shell moving type vertical planetary gear reducer - Google Patents

Description

Shell-type vertical planetary gear reducer

This creation relates to a shell-operated vertical planetary gear reducer that does not suffer from oil leakage and has better resistance to axial and radial forces.

The conventional vertical planetary gear reducer is fixed by a ring gear, and the carrier is transmitted to the output shaft. This reducer must be equipped with an oil seal on the output shaft to prevent oil leakage. When the reducer is in long-term operation, the oil seal material will age, and the wear of the output shaft and the oil seal contact position will cause oil leakage and cause environmental pollution.

When the conventional reducer is used in a mixer, the aforementioned oil leakage phenomenon will seriously pollute the product to be stirred, causing serious damage to the enterprise. Although some high-end reducers use mechanical seals (floating oil seals) with high reliability and high cost, they cannot completely prevent oil leakage. When the product to be stirred by the mixer is food or medicine, if the oil leakage phenomenon is not found in time, the consequences are more serious.

Figure 1 shows the structure of a conventional vertical planetary gear reducer. The reducer comprises a motor 10, a reduction box 11, a coupling 12 and a output shaft 13. The reduction gear box 11 is provided with a planetary gear reduction mechanism (not shown). The coupling 12 is connected to the power output shaft 14 of the reduction gear box 11 and the power output shaft 13 so that power can be output from the power output shaft 13. In order to enable the output shaft 13 to have a better resistance to radial pressure, the distance between the two bearings 15, 16 is set. If it is not too close, the length of the support base 17 for assembling the two bearings 15, 16 should not be too short, resulting in a large length of the entire reducer. Among them, under the long-term operation of the output shaft 13, the oil seal 18 is easily worn and leaks oil.

The main purpose of this creation is to provide a shell-type vertical planetary gear reducer which is fixed by a planetary carrier and outputs power by a ring gear which is a part of the outer casing and outputs power to the outer casing.

The shell-mounted vertical planetary gear reducer provided by this creation can eliminate the occurrence of oil leakage, reduce the number of components and reduce costs.

The shell-type vertical planetary gear reducer provided by the present invention has better resistance to axial force and radial force when used in a mixer.

The shell-type vertical planetary gear reducer provided by the present invention comprises: a fixed flange, a first planetary gear set, a first sun gear, a second planetary gear set, and a second sun Gear, a casing. The ring gear of the first planetary gear set is fixedly integrated with the fixed flange. The first sun gear is driven by a motor and is capable of driving the first planetary gear set to operate. With the second sun gear, the first planetary gear set is configured to drive the second planetary gear set to rotate. The planet carrier of the second planetary gear set is fixed on a connecting plate, and the connecting plate is fixedly integrated with the ring gear of the first planetary gear set, so that the second planetary carrier is fixed. The outer casing includes a ring gear provided with an upper cylinder, a lower cup, and the second planetary gear set sandwiched between the upper and lower cups. The upper cylinder, the ring gear of the second planetary gear set, and the lower cup are integrally coupled by a plurality of screws, and a leakage preventing glue is provided at the joint. Then, when the motor is started, the outer casing will perform a deceleration rotation.

A central shaft is connected to a lower end of the second planetary carrier. A first roller bearing is disposed between the upper cylinder of the outer casing and the ring gear of the first planetary gear. A second roller bearing and a ball bearing are disposed from bottom to top between the lower cup of the outer casing and the convex shaft of the lower end of the second planetary carrier. The first roller bearing and the second roller bearing constitute two upper and lower rolling fulcrums of the outer casing.

The lower end of the lower cup of the housing is connected to a stirring rod. The top end of the stirring rod is provided with a horizontal connecting plate. The connecting plate of the stirring rod is locked to the lower cup by means of a plurality of screws. In the meantime, a flat key is pressed between the bottom surface of the lower cup of the casing and the connecting plate of the stirring rod. The upper portion of the flat key is embedded in a predetermined recess in the bottom surface of the lower cup. The lower part of the flat key is embedded in a predetermined recess of the top surface of the connecting rod of the stirring rod.

10‧‧‧ motor

11‧‧‧ Gearbox

12‧‧‧Couplings

13‧‧‧Output shaft

14‧‧‧Power output shaft

15‧‧‧ bearing

16‧‧‧ bearing

17‧‧‧ Support

18‧‧‧ oil seal

20‧‧‧Motor

21‧‧‧Fixed flange

22‧‧‧ oil seal

30‧‧‧First planetary gear set

31‧‧‧First sun gear

32‧‧‧First ring gear

33‧‧‧First planetary carrier

34‧‧‧ planetary gear

35‧‧‧First rolling cone bearing

40‧‧‧Connecting plate

41‧‧‧ screws

42‧‧‧ screws

50‧‧‧Second planetary gear set

51‧‧‧second sun gear

52‧‧‧second ring gear

53‧‧‧Second planetary carrier

531‧‧‧Shaft axis

54‧‧‧ planetary gear

55‧‧‧Second roller cone bearing

56‧‧‧roller bearing

60‧‧‧ Shell

61‧‧‧Upper cylinder

62‧‧‧ Lower cup

621‧‧‧ slotted

63‧‧‧ screws

70‧‧‧ stir bar

71‧‧‧Connecting plate

72‧‧‧ screws

73‧‧‧ flat key

74‧‧‧Inlay

Figure 1 is a schematic view of the structure of a conventional vertical planetary gear reducer.

Figure 2 is a side view of the creation.

Figure 3 is an external view of the creation.

Figure 4 is an exploded view of Figure 3.

Figure 5 is an external view of the original after the shell is removed.

Figure 6 is a cross-sectional view of the creation.

Figure 7 is an exploded view of the assembly with a stirring rod. .

Figure 8 is an external view of the assembly with a stirring rod.

Please refer to Figure 2 to Figure 6. The shell-type vertical planetary gear reducer disclosed in the present invention comprises: a fixed flange 21, a first planetary gear set 30, and a first sun A gear 31, a connecting plate 40, a second planetary gear set 50, a second sun gear 51, and a casing 60. A motor 20 can be fixed to the top surface of the fixing flange 21. The motor 20 can drive the first sun gear 31 to rotate, and the driving of the first planetary gear set 30, the second sun gear 51, and the second planetary gear set 50 can achieve the effect of deceleration.

The first planetary gear set 30 includes a first ring gear 32 and a first planetary carrier 33. Three planetary gears 34 are disposed on the first planetary carrier 33. The first ring gear 32 is fixedly coupled to the fixing flange 21 . The first sun gear 31 is driven by the motor 20 to drive the three planet gears 34 on the first planet carrier 33 to rotate. In the meantime, the first ring gear 32 is fixed, and the first planet carrier 33 can be used as the first stage of deceleration rotation.

The second planetary gear set 50 includes a second ring gear 52 and a second planet carrier 53. Three planetary gears 54 are disposed on the second planetary carrier 53. The first planet carrier 30 can drive the planetary gear 54 on the second planet carrier 53 to rotate by the second sun gear 51. The second planet carrier 53 is fixed integrally with the connecting plate 40 by means of a plurality of screws 42. The connecting plate 40 is fixedly integrated with the ring gear 32 of the first planetary gear set 30 by means of a plurality of screws 41. In the meantime, the second planetary carrier 53 is fixed, and the second ring gear 52 can be used as the second-stage deceleration rotation.

Cooperate with Figure 4 and Figure 6. The outer casing 60 includes a second ring gear 52 provided with an upper cylinder 61, a lower cup 62, and the second planetary gear set 50 interposed between the upper cylinder 61 and the lower cup 62. The upper cylinder 61, the second ring gear 52, and the lower cup 62 are integrally coupled by a plurality of screws 63, and a leakage preventing glue is provided at the joint, so that the outer casing 60 has a leakage preventing function.

A central end of the lower end of the second carrier 53 is connected to a convex shaft 531. The outer diameter of the lower half of the convex shaft 531 is smaller than the outer diameter of the upper half. The upper cylinder 61 of the outer casing 60 and the first planetary gear set A first roller bearing 35 is disposed between the first ring gears 32 of 30. A second roller bearing 55 and a roller bearing 56 are disposed between the lower cup 62 of the outer casing 60 and the convex shaft 531 of the lower end of the second planetary carrier 53 from the bottom. When the motor 20 is in operation, the second ring gear 52 is driven to rotate the outer casing 60.

This creation is to output power by the rotation of the outer casing 60. The highest and lowest point positions of the outer casing 60 are provided with two roller cone bearings 35, 55 as two fulcrums, so that the distance between the two fulcrums is long. If the reducer is connected to the stirring rod 70 to form a mixer, it can withstand large radial and axial forces. Therefore, the creation does not need to be equipped with long support points, couplings and other devices, which can reduce components, reduce costs, and reduce the overall weight and volume of the reducer.

The reducer only needs to be dustproof above the lubricating oil level to prevent dust from entering. An oil seal 22 is disposed between the top end of the outer casing 60 and the fixed flange 21 to achieve dust prevention. The lower portion of the oil level prevents oil leakage by virtue of the aforementioned fully enclosed outer casing 60. Therefore, the creation of this creation does not exceed the normal oil level, there is no possibility of oil leakage.

Please refer to Figure 7 and Figure 8. The lower end of the lower cup 62 of the casing 60 can be connected to a stirring rod 70 to constitute a mixer. The top end of the stirring rod 70 is provided with a horizontal connecting plate 71. The connecting plate 71 of the stirring rod 70 is locked to the lower cup 62 by means of a plurality of screws 72. In the meantime, a flat key 73 is pressed between the bottom surface of the lower cup 61 of the casing 60 and the connecting plate 71 of the stirring rod 70. The upper portion of the flat key 73 is embedded in a predetermined recess 621 of the bottom surface of the lower cup 62. The lower portion of the flat key 73 is embedded in the predetermined recess 74 of the top surface of the connecting plate 71 of the stirring rod 70. The outer casing 60 drives the stirring rod 70 to rotate by the flat key 73, thereby greatly reducing the shear force received by the screw 72.

In summary, the shell-type vertical planetary gear reducer provided by this creation can prevent oil leakage and is used in mixers for food, medicine and other raw materials. It pollutes the raw materials. This creation is a power output casing, and the distance between the upper and lower fulcrums is long, and the stability during rotation is high. The combination of the oil-free pollution of this creation, stable output power, small size, light weight, low cost, etc. is an innovative and practical technology.

The above description is by way of a detailed description of the present invention, and is not intended to limit the scope of the present invention. Anyone who is familiar with such a skilled person can understand, and appropriate changes and adjustments will not lose the essence of this creation, and will not deviate from the spirit and scope of this creation.

21‧‧‧Fixed flange

22‧‧‧ oil seal

31‧‧‧First sun gear

32‧‧‧First ring gear

33‧‧‧First planetary carrier

34‧‧‧ planetary gear

35‧‧‧First rolling cone bearing

40‧‧‧Connecting plate

41‧‧‧ screws

42‧‧‧ screws

51‧‧‧second sun gear

52‧‧‧second ring gear

53‧‧‧Second planetary carrier

531‧‧‧Shaft axis

54‧‧‧ planetary gear

55‧‧‧Second roller cone bearing

56‧‧‧roller bearing

60‧‧‧ Shell

61‧‧‧Upper cylinder

62‧‧‧ Lower cup

621‧‧‧ slotted

63‧‧‧ screws

Claims (4)

A shell-operated vertical planetary gear reducer comprising: a fixed flange, a first planetary gear set, a first sun gear, a second planetary gear set, a second sun gear, and a casing The ring gear of the first planetary gear set is fixedly integrated with the fixed flange; the first sun gear is driven by a motor to drive the first planetary gear set to operate; by virtue of the second sun gear, a first planetary gear set to drive the second planetary gear set to rotate; the outer casing comprises: an upper cylinder, a lower cup, and the second sandwiched between the upper and lower cups a ring gear of the planetary gear set; the upper cylinder, the ring gear of the second planetary gear set, and the lower cup are integrally coupled by a plurality of screws, and a leakage preventing glue is provided at the joint; the second planetary gear The planetary carrier of the group is fixed on a connecting plate, and the connecting plate is fixedly integrated with the ring gear of the first planetary gear set; the lower end of the second planetary carrier is connected to a convex shaft at the center; the upper cylinder of the outer casing With the first planetary gear A first roller bearing is disposed between the gears; a second roller bearing is disposed between the lower cup of the outer casing and the protruding shaft of the lower end of the second planetary carrier; and a top end of the outer casing is disposed between the fixed flange There is an oil seal; wherein, when the motor is running, the ring gear on the outer casing is driven to rotate the outer casing. The case-type vertical planetary gear reducer according to claim 1, wherein a roller bearing is additionally disposed between the lower cup of the outer casing and the convex shaft of the lower end of the second planetary carrier. The shell-type vertical planetary gear reducer according to claim 1, wherein a lower end of the lower cup of the casing is connected to a stirring rod; a top end of the stirring rod is provided with a horizontal connecting plate; The connecting plate of the stirring rod is locked to the lower cup by means of a plurality of screws. The shell-type vertical planetary gear reducer according to claim 3, wherein a flat key is pressed between a bottom surface of the lower cup of the casing and a connecting plate of the stirring rod; The upper portion is embedded in a predetermined recessed groove on the bottom surface of the lower cup body; the lower portion of the flat key is embedded in the top surface of the connecting plate of the stirring rod Preset in the slot.