KR200282490Y1 - Geared motor structure - Google Patents

Abstract

The present invention relates to a gear reducer structure used in a DC motor that is easy to assemble, and in particular, a plurality of bosses and pin grooves for directly inserting and fixing the output shaft and the shaft pin on the upper surface of the base member screwed to the upper side of the motor body directly. And a plurality of pin fixing grooves for holding the upper end of the shaft pin to be fixed to the upper bottom surface of the cover coupled to the upper side of the motor main body, so that the output shaft and the shaft pin are inserted into the boss and the pin groove when the reducer is assembled. And reducer gear is set, and as the upper part of the shaft pin is fixed by the combination of the cover, it is not only easy to assemble the reducer motor, but also can easily replace only the corresponding parts in case of failure of the motor, and the vertical setting of the shaft pin is easy. Simple assembly to improve the operation of each reduction gear and reduce the operation noise One reducer motor structure.

Description

Geared motor structure for easy assembly {Geared motor structure}

The present invention is related to the structure of the reducer motor, which is easy to assemble, and in particular, the assembly of the reducer motor is not only easy, and only the corresponding parts can be easily replaced in case of a breakdown inside the reducer, and the vertical setting of the shaft pin is easy to operate each gear. The present invention relates to an easy-to-assemble speed reducer motor structure with improved performance and reduced operating noise.

The reducer motor is connected to the gear unit, which is a reduction gear, to drive rotational power generated by the input power, and to reduce the rotational speed to supply rotational power to the load side. Used in industrial fields.

1 and 2 show a conventional reducer motor structure,

A base member 3 having a predetermined thickness is coupled to the upper side of the motor body 1 as a screw, and the driving gear 2 of the motor body 1 is coupled to the upper end of the center of the base member 3. .

On the upper side of the base member 3 is equipped with a modular power transmission means for transmitting the rotational force of the drive gear 2 to the load side through the output shaft (16).

The power transmission means has a lower fixing plate 4 and an upper fixing plate 5 formed thinner than the base member 3, and the upper and lower fixing plates 6 are interposed between the upper and lower fixing plates 4 and 5, respectively. Fixing plate (4, 5) is to maintain a constant interval, the upper and lower ends of the fixing rod (6) respectively by caulking (7) to remove the upper fixing plate 4 and the lower fixing plate (5) from the fixing rod (6) Is preventing.

In addition, a plurality of holes 19 are formed at positions opposite to each other of the upper fixing plate 5 and the lower fixing plate 4, and the shaft pins 8 to 10 are inserted into and fixed to each shaft pin 8, respectively. And a reduction gear (11 to 14) for reducing the rotational force of the drive gear (2) to the output gear 17 to the output gear 17, the output shaft (17) is formed on one side of the body (~ 10) 16) is inserted through the upper fixing plate 5, and the lower end thereof is rotatably fixed to the lower fixing plate 4 so that the output shaft 16 is rotated by the rotational force transmitted from the reduction gear.

The upper fixing plate 5 is formed with a boss 18 for preventing the output shaft 16 from shaking.

After seating the power transmission means as described above on the upper surface of the base member 3 as shown in Figure 1, the separate cover 15 is coupled from the upper side of the motor body 1 to complete the assembly of the reducer motor.

In the conventional reduction gear motor structure as described above, the second reduction gear 12 in which the rotational force of the drive gear 2 is transmitted to the first reduction gear 11 and the rotational force thereof is engaged with the first reduction gear 11 is shown. The rotational force of the second reduction gear 12 is sheared by the third reduction gear 14 and the fourth reduction gear 13, and finally the output gear 17 engaged with the fourth reduction gear 13. By passing through), the output shaft 16 is rotated.

However, in the conventional speed reducer motor structure, in assembling a modular power transmission means, a plurality of fixing rods 6 are coked (7) between the lower fixing plate 4 and the upper fixing plate 5 formed in a thin thickness. And the shaft pins 8 to 10 on which the reduction gears 11 to 14 are erected vertically between the fixing plates 4 and 5 so that the thickness of the upper and lower fixing plates 4 and 5 Due to its thinness, the force of the caulking (7) portion tends to be weak, whereby the vertical setting of the shaft pins (8 to 10), which are erected between the fixed plates (4 and 5), is not achieved. There was a problem that the operation noise occurs because the rotation is not made smoothly.

In addition, as the thickness of the upper and lower fixing plates (4, 5) has a disadvantage of being easily bent by the external impact, and if the upper and lower fixing plates (4, 5) are bent, the vertical setting of the shaft pins (8 to 10) is twisted As a result, the operation performance of each reduction gear is reduced.

In addition, the modular power transmission means assembled by organically coupling a plurality of reduction gears between the upper and lower fixing plates 4 and 5 as described above is very difficult to disassemble once assembled, thereby constituting the power transmission means during use of the reduction gear motor. When a problem occurs in the parts, only the parts cannot be replaced or repaired, and thus the maintenance is difficult, such as having to replace all the modular power transmission means.

Accordingly, the present invention for solving the above problems directly forms a plurality of bosses and pin grooves for vertically inserting and fixing the output shaft and the shaft pin on the upper surface of the base member which is screwed on the upper side of the motor body, and also of the reducer motor body. Forming a plurality of pin fixing groove for holding the upper end of the shaft pin to be fixed to the upper bottom of the cover coupled to the upper side, so that the output shaft and the reduction gear is set while inserting the output shaft and the shaft pin to the boss and the pin groove when assembling the reducer, As the upper part of the shaft pin is fixed by the combination of the cover, it is not only easy to assemble the motor, but also to replace only the parts in case of breakdown inside the gearbox, and the vertical setting of the shaft pin is easy to operate the gears. Easy to assemble reducer motor structure for improved and reduced operating noise The purpose.

The present invention for achieving the above object

In the reducer motor structure in which the base member is coupled to the upper side of the reducer motor main body as a screw, and a plurality of reduction gears are mounted on the upper side of the motor main body to transfer the rotational force generated from the drive gear of the reducer motor main body to the output gear.

And forming bosses for inserting shaft pins into which output shafts and reduction gears are inserted, respectively, on both sides of the drive gears protruding upward of the base member,

Another side of the drive gear is characterized in that each of the pin groove for the press-fit fixing of the shaft pin to which the different reduction gear is inserted to facilitate the assembly of the output shaft and the shaft pin.

In addition, the cover having a plurality of pin fixing grooves for inserting and fixing the upper end of the shaft pin on the bottom of the upper side is coupled to the upper side of the reducer motor main body so that the vertical setting of the shaft pin to be coupled to the upper side of the base member is maintained. It features.

1 is a perspective view showing a conventional reducer motor structure.

Figure 2 is a side view showing a power transmission module applied to a conventional gear assembly structure.

Figure 3 is a perspective view showing a simple reducer motor structure of the present invention.

Figure 4 is an exploded perspective view showing a reducer motor structure of the present invention.

5 is a cross-sectional view taken along the line A-A of FIG.

※ Explanation of code for main part of drawing

20: motor body, 21: drive gear,

22: base member, 23, 24: boss,

25, 26: pin groove, 27: output shaft,

28: output gear, 29: screw,

30 ~ 32: shaft pin, 33 ~ 36: reduction gear,

40: cover, 41: pin retaining groove,

42: output shaft boss

Hereinafter, a preferred embodiment of the present invention with reference to the accompanying drawings, Figures 3 to 5 are as follows.

Reference numeral 20 denotes a motor body, and a drive gear 21 that rotates by driving of the motor body 20 is formed in the upper center of the motor body 20.

The base member 22 is coupled to the upper side of the motor main body 20 as the screw 29. At this time, the drive gear 21 is coupled to protrude upward from the center of the base member 22, and the thickness of the base member 22 is increased. Is preferably formed thick enough to facilitate the formation of the bosses 23 and 24 and the pin grooves 25 and 26.

In the present invention, the bosses 23 and 24 and the pin grooves 25 and 26 are installed in order to more easily mount a plurality of reduction gears 33 to 36 for transmitting the rotational force of the drive gear 21 to the output gear 28. It forms directly on the member 22.

The bosses 23 and 24 protrude from the upper surface of the base member 22 so as to be located at both sides of the drive gear 21 as shown in FIG. 4, and the pin grooves 25 and 26 are formed of the drive gear ( A recess is formed in the upper surface of the base member 22 so as to be positioned on both sides of the center 21.

At this time, since the thickness of the base member 22 is sufficiently thick, the depth of the pin grooves 25 and 26 is sufficient to insert and fix the shaft pins 31 and 32.

After the bosses 23 and 24 and the pin grooves 25 and 26 are formed on the upper surface of the base member 22 as described above, the first reduction gear 35 which rotates in engagement with the drive gear 21 is rotatable. A pin shaft in which the inserted shaft pin 31 is vertically press-fitted into the pin groove 25 on one side, and the second reduction gear 33 and the fourth reduction gear 34 are sequentially stacked and inserted into the boss 24 on one side. 30 is vertically inserted and the second reduction gear 33 has a function of transmitting the turning power of the first reduction gear 35 to the third reduction gear 36.

In another pin groove 26, the shaft pin 32 into which the third reduction gear 36 is inserted is press-fitted to transfer the rotational force transmitted from the second reduction gear 33 to the fourth reduction gear 34. do.

An output shaft 27 having an output gear 28 bearing therein is inserted into the other boss 23, and the output gear 28 rotates by receiving rotational force from the fourth reduction gear 34, thereby rotating the output shaft 27. Done.

When the output shaft 27 and the shaft pins 30 to 32 are both inserted into the bosses 23 and 24 and the pin grooves 25 and 26, the output shaft 27 and the shaft pins 30 to 32 are formed as shown in FIG. 3, and in this state, the upper side of the motor body 20 is provided. By combining the separate cover 20 from to complete the coupling of the motor.

At this time, the boss 42 for preventing the shaking of the output shaft 27 is protruded on one side of the top surface of the cover 20, the shaft pin is vertically coupled to the base member 22 on the bottom of the upper side of the cover 20 Upper ends of the 30 to 32 form a plurality of pin fixing grooves 41 for fixing.

Therefore, when the output shaft 27 is inserted into the boss 42 when the cover 20 is coupled to the upper side of the motor body 20, the upper ends of the respective shaft pins 30 to 32 are naturally fixed to the pin fixing grooves 41. The vertical setting of each shaft pin (30 ~ 32) is made while being inserted, thereby smoothly engaged rotation operation of the reduction gears (33 ~ 36) coupled to each shaft pin (30 ~ 32) when the motor is driven. Will be.

Bushes are coupled to upper and lower ends of the shaft pins 31 and 32 to determine the installation positions of the reduction gears 35 and 36, and the boss 24 is bushed to the shaft pins 30 inserted into the boss 24. It does not need to combine a separate bush because it acts as a.

The present invention as described above has the following advantages.

When assembling the reducer motor, the bosses 23 and 24 and the pin grooves 25 and 26 are formed on the upper surface of the base member 22 which is thick enough, and then the output shaft 27 and the shaft pins 30 to 32 are inserted therein. Therefore, the vertical direction of the output shaft 27 and the shaft pins 30 to 32 is very easy to set, and the bosses 23 and 24 may be set to different heights as necessary so that they can act as bushes. Since no insertion is required, the effect of productivity improvement due to the reduction of parts can be expected.

In addition, if a failure occurs in the power transmission system (reduction gear and output gear) while using the reduction gear motor, the cover 40 is removed from the motor main body 20, and then the deceleration inserted in each of the shaft pins 30 to 32 is applied. As the gears can be selectively replaced, maintenance can be expected to be easy.

In addition, since the shaft pins 30 to 32 are sufficiently deeply pressed into the pin grooves 25 and 26 and the bosses 24 formed on the thick base member 22, the shaft pins 30 to 32 are easily maintained in the vertical direction. As a result, the rotational motion is smoothed by organic coupling of the reduction gears, and the operation noise generated during the operation of the motor can be significantly reduced.

As described above, the present invention directly forms a plurality of bosses and pin grooves for vertically inserting and fixing the output shaft and the shaft pin on the upper surface of the base member screwed to the upper side of the motor body, and coupled to the upper side of the motor body. Forming a plurality of pin fixing groove to hold the upper end of the shaft pin to the upper surface of the reducer cover, so that the output shaft and the reduction gear is set while inserting the output shaft and the shaft pin to the boss and the pin groove when assembling the reducer motor, It is easy to assemble the reducer motor by fixing the upper end of the shaft pin by the combination, and it is easy to replace only the corresponding parts in case of breakdown inside the reducer, and it is easy to set the shaft pin in the vertical direction, improving the operability of each gear. Speed reducer motor structure with easy assembly It can be expected to.

Claims (2)

The base member 22 is coupled to the upper side of the motor body 20 as a screw 29, a plurality of deceleration for transmitting the rotational force generated in the drive gear 21 of the motor body 20 to the output gear 28 In the reduction gear structure in which the gears 33 to 36 are mounted on the upper side of the motor main body 20, For inserting the shaft pin 30 into which the output shaft 27 and the reduction gears 33 and 34 are formed, the output gears 28 being formed on both sides of the drive gear 21 protruding upward of the base member 22. Forming bosses 23 and 24, respectively, On both sides of the drive gear 21, pin grooves 25 and 26 for press-fitting the shaft pins 31 and 32 into which different reduction gears 35 and 36 are inserted are formed, respectively, such that the output shaft 27 and the shaft pin ( Easy to assemble reducer motor structure, characterized in that 30 to 32) to facilitate the assembly. The method of claim 1, The base member 22 is coupled to the upper side of the motor main body 20 by combining the integrated reducer cover 40 having a plurality of pin fixing grooves 41 for inserting and fixing the upper end portions of the shaft pins 30 to 32 on the upper bottom surface. Easy assembling reducer motor structure, characterized in that the vertical setting of the shaft pins (30 to 32) to be coupled to the upper side of the stand is maintained.