KR101253947B1 - Chain decelerator of planet gear - Google Patents

Abstract

The present invention relates to a planetary sprocket chain reducer, the shaft of the input drum through one side of the casing body housing is inserted into the through hole of the casing body housing through the ball bearing and the input bearing housing is fixed to the input bearing housing by the socket bolt of the other side On the other side of the casing body housing, a fixed sprocket is fixed with a countersunk head bolt, a hole is formed in the center of the fixed sprocket, and a tooth is formed on the outer circumferential surface thereof so that the electric two-row chain is coupled to the outer circumferential surface, and the fixed sprocket The output idler plate is positioned inside the through hole of the casing body housing, and is fixed to the other side of the casing body housing, and the through hole and the fastening hole are formed in the output idler plate, and the input pin sprocket into which the countersunk head nut is inserted is located. Three output bearing pins are inserted into the ball, and the fastening hole Three planetary sprockets having an outer circumferential surface with teeth are inserted into the inserted output bearing pins, and an output shaft plate is fixed to the output bearing pins through which the planetary sprockets pass, and the shaft protruding outside the output shaft plate is a planetary reducer casing. It is inserted through the ball bearing, output sprocket and output bearing case. Therefore, the present invention is to replace the internal ring gear and planetary gear and sun gear (sun gear) used in the conventional planetary gear reducer with an electric chain and a sprocket, the effect of producing a high speed reducer with a low cost and simple configuration have.

Description

Planetary sprocket chain reducer {Chain decelerator of planet gear}

The present invention relates to a planetary sprocket chain reducer, and more particularly to a planetary sprocket chain reducer using an electric chain and a sprocket.

In general, the planetary reducer refers to a gear train in which sun gears and internal ring gear planetary gears are arranged in concentric lines. In the case of the same speed ratio, the gear ratio is smaller than the gear train arranged in the reducer of other principles, As it is concentric and has high power transmission efficiency, it is widely used in intelligent robots, R / Cs, aircraft, automobiles, office equipment, and machine tools that require compact and lightweight.

A conventional planetary reducer is arranged with a ring gear, which is an internal gear 3, on the outer side, as shown in FIG. 1, with the planetary gears 2 engaged in a circumference, and then with the planetary gears 2. The interlocking sun gear 1 is arranged in the center so as to be concentric.

The planetary reducer can reduce the overall size by distributing the transmission load by using the planetary gear (2), and when the planetary gear (2) is arranged symmetrically, the radial loads of the planetary gear (2) cancel each other and bearing This has an advantageous mechanism that only takes into account the axial loads in the frame design.

In addition, the conventional planetary reducer is more expensive to process the internal ring gear, the higher the contact efficiency of the gear and the friction loss is reduced by the distribution of the transmission load, the noise is reduced and the efficiency is improved and is used a lot. have.

In the related art, the planetary reduction gear using the sun gear, the idle gear and the internal ring gear is first rotated by arranging a plurality of first planetary gear trains engaged with the sun gear coupled to the input rotation shaft as shown in FIG. 1. To reduce the rotational speed, and to perform the first speed reduction to transmit stable rotational force by the first carrier, and to perform the second speed reduction by the sequential arrangement of the sun gear, the planetary gear, the internal ring gear, and the carriers as necessary. Or third deceleration or fourth deceleration is performed sequentially.

However, as described above, the planetary reducer using the planetary gear is limited to the installation space according to the torque required at the output shaft and the magnitude of the shaft end load, and the reduction ratio can not be maintained in an optimal state. This is the main cause of the failure rate due to manufacturing tolerances and assembly tolerances for low cost production.

In addition, since the general shaft coupling structure is used when the sun gear is coupled to the rotating shaft, there is a complexity in processing, and if the contact surface is not accurate, there is a problem in the precision such that the play occurs during rotation.

In addition, in order to cope with the assembly error according to the arrangement of the planetary gear trains, the assembly tolerance considering the backlash of the gears during the precise machining and assembling becomes an essential element, and for the expensive gear processing to process the internal ring gears and the planetary gears and the sun gears Requires dedicated equipment.

In order to solve the problems described above, in the present invention, by replacing the internal ring gear and the planetary gear and sun gear (sun gear) in the conventional planetary gear reducer with electric chains and sprockets, the parts are combined more simply and stably, low cost and high efficiency The aim is to provide a planetary sprocket chain reducer that is easy to manufacture and precise.

In order to achieve the object, the shaft of the input drum is inserted into the through hole of the casing body housing through the ball bearing and the input bearing housing to one side of the casing body housing, and the input bearing housing is fixed by the socket bolt of the other side. A fixed sprocket is fixed to the other side of the casing body housing by a countersunk head bolt, a hole is formed in the center of the fixed sprocket, and a tooth is formed on the outer circumferential surface thereof so that the electric two-row chain is coupled to the outer circumferential surface, and the inside of the hole of the fixed sprocket The output idler plate is positioned and fixed to the other side of the casing body housing, and the output idler plate is formed with a through hole and a fastening hole, and the through hole has an input pin sprocket into which the head pin nut is inserted. Output bearing pins are inserted, and an output bearing inserted into the fastening hole Three planetary sprockets having an outer circumferential surface with teeth are inserted into the pin, and an output shaft plate is fixed to the output bearing pin through which the planetary sprocket passes, and an axis projecting out of the output shaft plate penetrates the reduction gear casing, which is a planetary body. And into the output sprocket and output bearing case.

As described above, the present invention, by replacing the internal ring gear and the planetary gear and sun gear (sun gear) used in the conventional planetary reducer with an electric chain and a sprocket, it is possible to produce a high speed reducer with a low cost and simple configuration It can be effective.

In addition, since the complete gear assembly is completed by simply disconnecting and assembling the electric two-row chain by releasing the connecting pin of the electric two-row chain, there is no need to introduce a separate tolerance concept. In the gears which are the core parts according to the deceleration function to be achieved, the expensive gear processing can be omitted, and the completion of the reduction gear with the function and reliability according to the mechanism can be omitted without the use of expensive gear processing equipment. There is a possible effect.

1 is a reference diagram showing the configuration of a conventional general planetary gear reducer.
Figure 2 is a cutaway view of the planetary sprocket chain reducer according to the present invention.
3 is an exploded view of a planetary sprocket chain reducer according to the present invention.
4 is a front view and a side view of FIG. 2.
5 is a front view and a side view of a state in which the planetary reducer casing is removed in FIG. 2;
Figure 6 is an exploded view of the power transmission configuration of the planetary sprocket chain reducer according to the present invention.
Figure 7 is a reference diagram showing the operating state of the power transmission system of the planetary sprocket chain reducer according to the present invention.

Figure 2 is a cutaway view of the planetary sprocket chain reducer according to the present invention, Figure 3 is an exploded view of the planetary sprocket chain reducer according to the present invention, Figure 4 is a front view and side view of the Figure 2, Figure 5 is the Figure 2 Front view and side view of the planetary reducer casing is removed, Figure 6 is an exploded view of the power transmission configuration of the planetary sprocket chain reducer according to the present invention, Figure 7 is an operation of the power transmission system of the planetary sprocket chain reducer according to the present invention. A reference diagram showing the state.

Hereinafter, the components will be described with reference to the drawings.

2 and 3 is a cutaway and exploded view of the planetary sprocket chain reducer according to the present invention, the planetary sprocket chain reducer 100 of the present invention is casing body housing 110, fixed sprocket 120, two rows for transmission The chain 130, the input drum 140, the output idler plate 150, the input pin sprocket 160, the planetary sprocket 170, the output shaft plate 180, and the planetary reducer casing 190 are included.

4 is a front view and a side view of FIG. 2, and FIG. 5 is a front view and a side view of a state in which the planetary reducer casing 190 is removed.

The casing body housing 110 has a first through hole 111 formed in the center, and the first fastening hole 112 and the second fastening hole 113 are formed at a predetermined interval based on the first through hole 111. The first socket bolt 114 is inserted at the outermost side.

A first shaft 141 of the input drum 140 having a rhombus shape on one side of the casing body housing 110 penetrates through the first ball bearing 142 and the input bearing housing 143 so that the casing body housing 110 is formed. The input bearing housing 143 is fixed by being inserted into the first through hole 111 of the second socket bolt 147 of the other side.

A third through hole 144 is formed at the center of the input bearing housing 143 of the input drum 140 to allow the first shaft 141 to pass therethrough, and is inserted into the first through hole 111 of the casing body housing 110. The protrusion 145 protrudes so that the fourth fastening hole 146 is formed at four corners of the input drum 140.

The other side of the casing body housing 110 is fixed to the sprocket 120 is fixed with a countersunk head bolt 125, a second through hole 121 is formed in the center of the fixed sprocket 120, the first tooth on the outer peripheral surface A third fastening hole 122 is formed in the fixed sprocket 120 so that the two-row chain 130 for transmission is coupled to the outer circumferential surface and the countersunk head bolt 125 penetrates.

The output idler plate 150 having a triangular shape is positioned inside the second through hole 121 of the fixed sprocket 120 and is fixed to the other side of the casing body housing 110. Four through holes 151 and a fifth fastening hole 152 are formed, and the fourth through hole 151 has an input pin sprocket 160 into which a dish head pin nut 163 is inserted, and the fifth fastening hole ( Three output bearing pins 153 are inserted into 152.

The input pin sprocket 160 is formed with a fifth through hole 161 at the center and the outside of the central portion, and the fifth through hole 161 formed at the central portion has a first shaft 41 of the input drum 140 as shown in FIG. 6. It is inserted, it can be seen that the countersunk pin nut 163 is inserted into the fifth through hole 161 formed on the outer side of the central portion, an insertion groove 162 is formed on the outer circumferential surface to insert the second ball bearing 164.

Three planetary sprockets 170 having an outer circumferential surface formed of a second tooth 172 are inserted into the output bearing pins 153 inserted into the fifth fastening hole 152, and the planetary sprockets 170 are outputted. The output shaft plate 180 is fixed to the bearing pin 153, and the second shaft 182 protruding to the outside of the output shaft plate 180 penetrates the reducer casing 190, which is a planetary material, to form a third ball bearing 184. And the output sprocket 185 and the output bearing case 186.

The output shaft plate 180 is formed in a triangular shape, the second shaft 182 is formed on one side protruding by the protrusion 181, the six fastening holes (183) in the three corners of the output shaft plate 180 The output bearing pin 153 is inserted into the sixth fastening hole 183, and the third socket bolt 187 is inserted into the output bearing case 186 to form the sixth of the planetary reducer casing 190. The seventh fastening hole 192 is formed outside the through-hole 191 is fixed.

A groove is formed in the outer circumferential surface of the second shaft 182 inserted into the output bearing case 186 to insert the sprocket fixing stop screw 188 and the sprocket fixing key 189.

The gap adjusting spacer 124 is provided between the casing body housing 110 and the fixed sprocket 120 to adjust the spacing of the fixed sprocket 120 fixed to the casing body housing 110.

In addition, the countersunk head nut 163 is limited to at least three to six when the planetary sprocket 170 is odd, and is limited to at least two to four when the planetary sprocket 170 is even. It is configured by.

In the present invention, the planetary sprocket 170 may be used in one stage as described above. However, the planetary sprocket 170 may be further provided in two stages or three stages, and may be configured as a reduction gear of two stages or three stages. In the configuration, the three-row chain for transmission is coupled to the outer circumferential surface of the fixed sprocket 120, and the four-row chain for transmission is coupled to the outer circumferential surface of the fixed sprocket 120 in the three stages.

The planetary sprocket chain reducer of the present invention configured as described above is primarily reduced by a small diameter of the plurality of planetary sprockets 170 engaged with the sun gear replacement countersunk pin nut 163 coupled to the rotary input shaft to perform the function of the sun gear. Is rotated at the set speed.

Located on the outer circumference of the planetary sprocket 170, the first stage deceleration is made to be transmitted by the carrier of the two-column chain 130 for transmission mounted on the interlocking fixed sprocket 120, the rotation input shaft and Due to the stable assembly of the sun head replacement countersunk pin nut 163 pinion, it is possible to maintain a low cost and high efficiency of manufacturing and rotational precision.

7 is a reference diagram showing the operating state of the power transmission system of the planetary sprocket chain reducer, the planetary sprocket 170 is rotated in the clockwise direction, the output sprocket 185 of the output shaft plate 180 in the counterclockwise direction It can be seen that it is rotated.

Therefore, the present invention replaces the internal ring gear and the planetary gear and sun gear (sun gear) in the existing planetary reducer with the electric chain and sprocket, so that the parts can be combined more simply and stably, easy production and precision of low cost and high efficiency Do.

Although the present invention has been shown and described with respect to specific embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Anyone who can afford it will know.

100: chain reducer 110: casing body housing
111: first opening 112: first fastening
113: 2nd fastener 114: 1st socket bolt
120: fixed sprocket 121: second hole
122: third fastener 123: first tooth
124: spacer for adjusting the gap 125: plate hairpin bolt
130: electric two-row chain 140: input drum
141: 1st axis 142: 1st ball bearing
143: input bearing housing 144: third through hole
145: protrusion 146: fourth fastening hole
147: second socket bolt 150: output idler plate
151: fourth through 152: fifth fastening
153: output bearing pin 160: input pin sprocket
161: fifth hole 162: insertion groove
163: countersunk head nut 164: second ball bearing
170: planetary sprocket 172: second tooth
180: output shaft plate 181: protrusion
182: 2nd axis 183: 6th fastening work
184: third ball bearing 185: output sprocket
186: bearing case 187: third socket bolt
188: Sprocket fixing stop screw 189: Sprocket fixing key
190: planetary gear reducer casing 191: sixth hole
192: 7th fastener

Claims (6)

In the planetary sprocket chain reducer 100,
The first shaft 141 of the input drum 140 penetrates through the first ball bearing 142 and the input bearing housing 143 to one side of the casing body housing 110 to allow a first hole of the casing body housing 110 to be formed. 111 is inserted into the second socket bolt 147 of the other side is fixed to the input bearing housing 143,
The other side of the casing body housing 110 is fixed to the sprocket 120 is fixed with a countersunk head bolt 125, a second through hole 121 is formed in the center of the fixed sprocket 120, the first tooth on the outer peripheral surface 123 is formed, the electric two-row chain 130 is coupled to the outer peripheral surface,
The output idler plate 150 is positioned inside the second through-hole 121 of the fixed sprocket 120 and is fixed to the other side of the casing body housing 110, and has a fourth through-hole 151 in the output idler plate 150. ) And the fifth fastening hole 152 is formed, the input pin sprocket 160 is inserted into the fourth through hole 151 is inserted into the head pin nut 163, 3 in the fifth fastening hole 152 Output bearing pins 153 are inserted,
Three planetary sprockets 170 having an outer circumferential surface formed of a second tooth 172 are inserted into the output bearing pins 153 inserted into the fifth fastening hole 152, and the planetary sprockets 170 are outputted. The output shaft plate 180 is fixed to the bearing pin 153, and the second shaft 182 protruding to the outside of the output shaft plate 180 penetrates the reducer casing 190, which is a planetary material, to form a third ball bearing 184. Planetary sprocket chain reducer, characterized in that inserted into the output sprocket 185 and the output bearing case (186). The method of claim 1,
Planetary sprocket chain reducer, characterized in that the clearance adjustment spacer 124 is provided between the casing body housing 110 and the fixed sprocket (120). The method of claim 1,
The countersunk head nut 163 is limited to at least three to six when the planetary sprockets 170 are odd, and is limited to two to four when the planetary sprockets 170 are even. Planetary sprocket chain reducer, characterized in that. delete The method of claim 1,
The planetary sprocket 170 is further provided in two stages or three stages, and may be configured as a two-stage or three-stage reduction device. When the planetary sprocket 170 is configured in two stages, the fixed sprocket 120 may be electrically When the three-row chain is coupled, when the planetary sprocket 170 is configured in three stages planetary sprocket chain reducer, characterized in that the electric four-row chain is coupled to the outer surface of the fixed sprocket 120. The method of claim 1,
Planetary sprocket chain reducer, characterized in that the groove is formed on the outer circumferential surface of the second shaft (182) inserted into the output bearing case (186) is inserted into the sprocket fixing stop screw (188) and the sprocket fixing key (189).

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