KR100970900B1 - Vertical Type Cycloid Reducer - Google Patents

Abstract

The present invention relates to a vertical cycle reducer that outputs after decelerating the rotation ratio by using a cycloid structure; The motor 10 is installed at the top of the drive shaft to face downward, the cyclone reduction unit 20 receives the rotational force of the motor 10 and reduces the rotation ratio by using a cycloid structure, and the cyclone reduction unit 20 An output unit 30 having an output shaft 35 outputting at a rotation ratio, a casing 40 having a cyclo deceleration unit 20 and an output unit 30 and filled with a lubricating member therein, and a casing 40 The primary bearing 41 supporting the upper end of the output shaft 35 therein, the secondary bearing 42 supporting the suspension of the output shaft 35 at the lower portion of the casing 40, and the secondary bearing 42 It is characterized in that it comprises a bearing cover 45 and the bearing cover 45 to support the oil leakage check cover 50 is stored in the lubrication member leaked from the inside of the casing (40).

Therefore, the oil leakage check cover is blocked to prevent the lubricant from leaking along the output shaft installed vertically to the floor, thereby preventing contamination of the floor by the lubricant, and checking the inside of the oil leakage inspection cover to check whether the oil leaks. It can be checked in advance and maintained.

Cyclo reducer, leaking oil, lubricant, grease, bearing, floor contamination

Description

Vertical Type Cycloid Reducer

The present invention relates to a vertical cycle reducer that outputs after decelerating the rotation ratio by using a cycloid structure, and in particular, it is possible to check the leakage of the lubricant in advance while preventing floor contamination due to leakage of the lubricant lubricating the output shaft. It is related to a reducer with a vertical cycle that is easy to maintain.

In general, the reducer used by connecting to the motor decelerates the output of the motor to have an effective driving rotational force to transmit the required power to the driving device, and also to maintain the proper rotational state of the motor at all times. To this end, the speed reducer is provided with a plurality of drive accessories for transmitting power and maintaining proper rotational force, and is used by filling oil such as lubricating oil in the casing for smooth driving of these drive accessories.

In general, reducer can be divided into vertical type and horizontal type according to the installation type, and divided into worm reducer, planetary gear reducer, bevel reducer and cyclo reducer according to the reduction structure. Here, the cyclo reducer is a reducer having a shaft, a cam, a cam bearing, and a drive accessory such as a disc, and is a device for decelerating and converting using a cycloid structure.

As shown in FIG. 1, a conventional vertical cycle reducer is a cycle that receives a rotational force of a motor 10 and a motor 10 installed at an upper end thereof so that a driving shaft faces downward, and reduces a rotation ratio by using a cycloidal structure. Accommodate the output unit 30 including the deceleration unit 20, an output shaft 35 outputting at a rotational ratio reduced by the cyclo deceleration unit 20, and the cyclo deceleration unit 20 and the output unit 30. And a casing 40 filled with a lubricating member therein, a primary bearing 41 supporting an upper end of the output shaft 35 in the casing 40, and a lower portion of the casing 40. The secondary bearing 42 supporting the suspension of the 35 and the bearing cover 45 coupled to the lower portion of the casing 40 to support the secondary bearing 42.

The lubricating member may be used to lubricate a low viscosity lubricant 61 for lubricating the primary bearing 41 and the cycle reduction unit 20 that rotate at high speed, and a portion of the secondary bearing 42 that rotates at low speed. High viscosity grease 62 is used simultaneously. The reason why the grease 62 is used together with the lubricating oil 61 is to prevent the crushed powder generated in the high-speed rotation part from damaging the secondary bearing 42 by using the viscosity of the grease. Of course, an oil seal 47 is installed at the inner edge portion of the bearing cover 45 in contact with the output shaft 35 to prevent the grease 62 from leaking.

However, the conventional vertical cycle reducer prevents the leakage of lubricating oil such as lubricating oil or grease by only the oil seal installed on the bearing cover, and contaminates the floor by lubricating member flowing along the output shaft as the oil seal ages. There is a problem.

The present invention has been made in order to solve the above-mentioned conventional problems, and an object thereof is to provide a vertical cycle reducer that can prevent contamination of the floor by preventing the lubricant leaking along the output shaft installed vertically to the floor. .

In addition, an object of the present invention is to provide a reducer in a vertical cycle to check the inside of the oil leakage check cover to check and maintain the leakage of lubricating oil in advance.

In addition, an object of the present invention is to provide a vertical cycle reducer that can prevent the floor contamination due to leakage of the lubricant during maintenance by discharging the lubricant in the oil leakage check cover separately.

In addition, the present invention provides a reduction gear in a vertical cycle in which lubrication oil for lubricating the high speed rotation part and grease for lubricating the low speed rotation part are separated, and the pulverized powder generated in the high speed rotation part does not damage the secondary bearing by using the viscosity of the grease. The purpose is to.

The present invention for achieving the above object, the motor is installed on the top of the drive shaft facing down, the cyclone reduction unit for receiving the rotational force of the motor and reducing the rotation ratio by using a cycloid structure, the reduction in the cyclone reduction unit An output unit including an output shaft for outputting at a predetermined rotation ratio, a casing accommodating the deceleration unit and the output unit in the cycle, and a lubricating member is filled therein, a primary bearing supporting the upper end of the output shaft in the casing, and the casing In the vertical cycle reducer including a secondary bearing for supporting the interruption of the output shaft at the lower portion of the, and a bearing cover coupled to the lower portion of the casing to support the secondary bearing, coupled to the bearing cover of the casing Further comprising a leak check cover for storing the lubricating member leaked from the inside It characterized.

In addition, according to the vertical cycle reducer of the present invention, the oil leakage escalator in the form of a transparent window for checking the oil leakage is installed on one side of the oil leakage check cover.

In addition, according to the vertical cycle reducer of the present invention, a drain plug for discharging the lubrication member gathered in the oil leakage inspection cover on one side of the oil leakage inspection cover is installed.

Further, according to the vertical cycle reducer of the present invention, the lubricating member is composed of a low viscosity lubricating oil and a high viscosity grease, the lubricating oil and grease are separated by a bearing housing installed in the casing, and the lubricating oil rotates at high speed. The primary bearing and the cycle lubricate the deceleration part and the grease to lubricate the secondary bearing portion which rotates at low speed. The bearing housing has a stepped cross section so that the outer edge is fixed to the casing and the inner edge is the output shaft. It is characterized by supporting the rotatable.

In addition, according to the vertical cyclo reducer of the present invention, oil seals are provided at the inner edge portions of the bearing cover, the oil leakage check cover, and the bearing housing that are in contact with the output shaft, respectively, and the outer edge of the bearing housing and the inner surface of the casing. O-ring is characterized in that installed between.

Further, according to the vertical cycle reducer of the present invention, the output shaft is characterized in that at least a portion in contact with the oil seal is formed of a chromium plating layer.

The vertical cycle reducer of the present invention has the effect of preventing the contamination of the floor by the lubricant because the oil leakage check cover installed at the lower end of the casing is blocked so that the lubricant leaks along the output shaft installed vertically. have.

In addition, according to the vertical cycle reducer of the present invention, there is an effect that can check and maintain the leakage of the lubricant in advance by checking the inside of the oil leakage check cover through the oil leakage check system.

In addition, according to the vertical cycle reducer of the present invention, since the lubricating oil in the leak check cover can be discharged in advance through the drain plug, it is possible to prevent the leakage of the lubricant in the leak check cover and contaminate the floor during maintenance. have.

In addition, according to the vertical cycle reducer of the present invention, since the low-speed rotating portion is lubricated with grease separated from the lubricating oil, the powder generated from the high-speed rotating portion does not damage the secondary bearing, thereby improving durability.

In addition, according to the vertical cycle reducer of the present invention, when the oil seal and the O-ring is used to prevent the leakage of lubricating oil, the frictional force between the output shaft and the oil seal can be minimized by forming a portion of the output shaft contacted with the chrome plating layer. It can be effective.

Hereinafter, a vertical cycle reducer of the present invention will be described with reference to the accompanying drawings.

Figure 2 is a partial cutaway sectional view showing a vertical cyclo reducer according to the present invention, Figure 3 is a detailed view showing the periphery of the secondary bearing and the leak check cover that is the main configuration of the present invention. For reference, since the structure of the vertical cyclo reducer of the present invention is similar to that of the conventional cyclo reducer, the same reference numerals will be used for the same components.

The vertical cycle reduction gear according to the present invention includes a motor reduction gear unit 20 for receiving a rotational force of the motor 10 and a rotational speed of the motor 10 and reducing the rotation ratio by using a cycloid structure such that the driving shaft faces downward. And, the output unit 30 is provided with an output shaft 35 for outputting at a reduced rotation ratio in the cyclo deceleration unit 20, the cyclo deceleration unit 20 and the output unit 30 is accommodated in the lubrication member The filled casing 40, the primary bearing 41 for supporting the upper end of the output shaft 35 in the casing 40, and the interruption of the output shaft 35 in the lower portion of the casing 40 The secondary bearing 42 to support, the bearing cover 45 is coupled to the lower portion of the casing 40 to support the secondary bearing 42, and the bearing cover 45 is coupled to the casing 40 Oil leakage check cover 50, in which the lubricating member leaked from the inside of the It achieved by also.

Here, the oil leakage checker 51 in the form of a transparent window for checking the oil leakage is installed on one side of the oil leakage check cover 50, and the oil leakage check cover 50 on the lower side of the oil leakage check cover 50. A drain plug 52 for discharging the lubricating members collected therein is installed.

The lubricating member may be used to lubricate a low viscosity lubricant 61 for lubricating the primary bearing 41 and the cycle reduction unit 20 that rotate at high speed, and a portion of the secondary bearing 42 that rotates at low speed. High viscosity grease 62 is used at the same time, allowing the lubricant 61 and grease 62 to be separated by a bearing housing 46 installed in the casing 40. To this end, the bearing housing 46 has a stepped cross section so that the outer edge is fixed to the casing 40 and the inner edge rotatably supports the output shaft 35.

Meanwhile, oil seals 47 are provided at inner edge portions of the bearing cover 45, the oil leak checking cover 50, and the bearing housing 46, which are in contact with the output shaft 35, respectively. O-ring 48 is preferably provided between the outer edge and the inner surface of the casing (40). In addition, it is preferable that a chromium plating layer 36 is formed around a portion of the output shaft 35, at least around the portion where the oil seal 47 is in contact.

Cyclo reducer of the present invention configured as described above is to decelerate the driving force of the motor in the cyclo reducer to transmit to the output shaft.

The driving shaft is rotated according to the driving of the motor 10, and the driving shaft is decelerated at an appropriate rotation ratio by a cycloidal structure including a cam, a cam bearing, a disk, and the like, and is transmitted to the output shaft 35 by a cycloidal structure including a cam, a cam bearing, and a disk. . At this time, the upper end portion of the output shaft 35 connected to the cycle reduction unit 20 is supported by the primary bearing, and the lower end portion of the output shaft is supported by the secondary bearing 42.

Here, since the lubricating oil chamber formed by the casing 40 and the bearing housing 46 is filled with the lubricating oil 61 having a low viscosity, the lubricating oil 61 is used to lubricate the high speed rotating parts such as the cyclo deceleration part 20 by the lubricating oil 61. This becomes possible. In addition, the grease 62 having high viscosity is filled in the grease chamber formed by the bearing housing 46 and the bearing cover 45, so that the grease 62 rotates at low speed by deceleration, and 2 Lubricating the output unit 30 including the difference bearing 42.

 As described above, in the state where the lubricating oil chamber and the grease chamber are partitioned by the bearing housing 46, an oil seal 47 is installed between the bearing housing 46 and the output shaft 35 and the bearing housing 46 and the casing. As the O-ring 48 is installed between the inner walls, the lubricating oil 61 of the lubricating oil chamber does not flow into the grease chamber or leak out. Therefore, it is possible to prevent the crushed powder, which may be mixed into the lubricating oil 61, from entering the grease chamber and damaging the secondary bearing 42 or the like. Since the oil seal 47 is also provided between the output shaft 35 and the bearing cover 45, the grease 62 in the grease chamber can be prevented from leaking outside the bearing cover 45.

Of course, the friction between the oil seal 47 and the output shaft 35 may increase as a plurality of the oil seals 47 are installed, but the portion of the output shaft 35 in contact with the oil seal 47 may be chromed. Since the plating layer 36 is formed and is smooth, the friction between the two is minimized to prevent the rotation of the output shaft 35 from occurring.

However, when the oil seal 47 installed in the bearing housing 46 and the bearing cover 45 ages, a lubricating member such as the lubricating oil 61 or the grease 62 may flow along the output shaft 35. . In this case, the oil leakage blocking cover 50 installed at the lower portion of the bearing cover 45 blocks the flow of the lubricating member and temporarily stores it. Therefore, it is possible to prevent the contamination of the floor due to the lubricating member flowing along the output shaft 35.

In this way, when the lubrication member is accumulated in the leakage blocking cover 50, it is possible to check the leakage through the leakage check system 51 provided on one side of the leakage blocking cover 50. Therefore, the oil leakage check system 51 is periodically checked to check whether there is leakage, and when leakage occurs, maintenance is possible immediately or as necessary. In addition, when the device is to be maintained in accordance with the oil leakage check system 51, the oil leakage blocking cover 50 may be disposed by using a drain plug 52 provided at one side of the oil leakage blocking cover 50. By removing the lubrication member, it is possible to prevent the lubrication member from falling on the floor during maintenance.

Although the preferred embodiments of the present invention have been described above, the scope of the present invention is not limited to such specific embodiments, and those of ordinary skill in the art are appropriately within the scope described in the claims of the present invention. Changes will be possible.

1 is a partial cutaway sectional view of a conventional vertical cycle reducer.

Figure 2 is a partial cutaway cross-sectional view showing a vertical cyclo reducer according to the present invention.

Figure 3 is a detailed view showing the periphery of the secondary bearing and the leak check cover that is the main configuration of the present invention.

<Explanation of symbols for the main parts of the drawings>

10: motor 20: cyclo reducer

30: output unit 35: output shaft

36: chromium plating layer 40: casing

41: primary bearing 42: secondary bearing

45: bearing cover 46: bearing housing

47: oil seal 48: O-ring

50: oil leakage cover 51: oil leakage check

52: drain plug 61: lubricant

62: Greece

Claims (6)

In the motor 10 is installed at the top so that the drive shaft is downward, the cycle reduction unit 20 receives the rotational force of the motor 10 and reduces the rotation ratio by using a cycloid structure, and the cyclone reduction unit 20 An output unit 30 having an output shaft 35 for outputting at a reduced rotational ratio, a casing 40 accommodating the cyclo deceleration unit 20 and an output unit 30 and filled with a lubricating member therein, and the casing Primary bearing 41 for supporting the upper end of the output shaft 35 in the interior of the 40, the secondary bearing 42 for supporting the interruption of the output shaft 35 in the lower portion of the casing 40, In the vertical cycle reducer comprising a bearing cover 45 coupled to the lower portion of the casing 40 to support the secondary bearing 42, It is coupled to the bearing cover (45) vertical cyclo reducer further comprises a leakage check cover (50) for storing the lubrication member leaked from the inside of the casing (40). The method of claim 1, Vertical cyclone reducer, characterized in that the oil leakage checker 51 in the form of a transparent window for checking the leakage of oil on one side of the leak check cover (50) is installed. The method of claim 1, Vertical cyclone reducer, characterized in that the drain plug 52 for discharging the lubrication member collected in the oil leakage check cover 50 on one side of the oil leakage check cover (50). The method according to any one of claims 1 to 3, The lubricating member is composed of a low viscosity lubricating oil 61 and a high viscosity grease 62, and the lubricating oil 61 and grease 62 are separated by a bearing housing 46 provided in the casing 40. The lubricating oil 61 lubricates the primary bearing 41 and the cyclo deceleration unit 20 which rotate at high speed, and the grease 62 lubricates the portion of the secondary bearing 42 which rotates at low speed. The bearing housing (46) is a vertical cyclo reducer, characterized in that the cross section is processed in a step shape so that the outer edge is fixed to the casing (40) and the inner edge rotatably supports the output shaft (35). The method of claim 4, wherein Oil seals 47 are provided at inner edge portions of the bearing cover 45, the oil leakage checking cover 50, and the bearing housing 46, which are in contact with the output shaft 35, respectively, and the outside of the bearing housing 46. Vertical cycle reducer, characterized in that the O-ring 48 is installed between the edge and the inner surface of the casing (40). The method of claim 5, The output shaft (35) is a vertical cyclo reducer, characterized in that at least a portion in contact with the oil seal 47 is formed of a chromium plating layer (36).

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