JP2014069245A - Planetary gear assembly device and assembly method for planetary gear - Google Patents

Abstract

PROBLEM TO BE SOLVED: To precisely assemble a planetary carrier by engaging first and second pinions with each other while suppressing tooth tips from being damaged.SOLUTION: A pinion gear assembly mechanism 40 of a planetary gear assembly device 1 is configured to engage first and second pinion gears 110, 120 with each other with the shaft centers thereof inclined from a perpendicular direction by putting the first and second pinion holders 41, 42 closer to each other in inclined states so as to allow the first and second pinion gears 110, 120 to move up obliquely substantially at right angles to the shaft centers thereof.

Description

  The present invention relates to a planetary gear assembling apparatus and a planetary gear assembling method in which a first pinion gear and a second pinion gear are engaged with each other and assembled to a planetary carrier.

  Conventionally, as this kind of planetary gear assembling apparatus, fixing means for positioning the planet carrier horizontally, positioning means for inserting the center of the planet carrier and defining the assembly position of the pair of pinion gears in the planet carrier, The pair of pinion gears are held in a state where the shaft centers are shifted by a predetermined distance so as to face each other and the pair of pinion gears are pressed against each other and meshed with each other, and the pair of meshed pinion gears on the planet carrier Moving means that is moved in parallel to be inserted from the side surface of the planet carrier and brought to the assembly position, and insertion means for pushing the pinion shaft into the insertion hole of the planet carrier and the shaft hole of the pinion gear above the assembly position. (For example, Patent Document 1) Irradiation). According to this planetary gear assembling apparatus, when the tooth tips of a pair of pinion gears pressed against each other come into contact with each other (when a tooth galling occurs), in addition to the pair of pinion gears, Since the applied pressing force is converted into a force for rotating both in the opposite direction, the meshing of both is realized by finally rotating one or both of the pinion gears. The pair of meshing means includes an extrusion member having an inverted C-shaped tip that slides on a horizontal table, a guide member that guides both sides of the extrusion member, a drive cylinder, and the like. It is used for holding and pushing out the long pinion gear, and the other is used for holding and pushing out the short pinion gear.

Japanese Patent Laid-Open No. 08-174347

  However, in the above conventional planetary gear assembling apparatus, since the pair of pinion gears are pressed against each other by the pair of pushing members each having an inverted C-shaped tip, the pair of tooth tips are in contact with each other. When the pinion gears are pressed against each other, operations other than rotation around the axis of both pinion gears are restricted. For this reason, there is a possibility that the tooth tips of at least one of the pinion gears may be damaged by pressing the tooth tips between the rotation of at least one of the pinion gears until the pair of pinion gears mesh with each other. .

  SUMMARY OF THE INVENTION Accordingly, it is a primary object of the present invention to provide a planetary gear assembling apparatus and a planetary gear assembling method that allow the first and second pinion gears to be engaged with each other while being able to be assembled to the planetary carrier accurately while suppressing damage to the teeth. To do.

  The planetary gear assembling apparatus and the planetary gear assembling method according to the present invention employ the following means in order to achieve the main object.

The planetary gear assembly apparatus according to the present invention is
In a planetary gear assembly apparatus in which a first pinion gear and a second pinion gear are engaged with each other and assembled to a planetary carrier,
A carrier support for supporting the planetary carrier so that the axis extends vertically;
Including a first pinion holder for supporting the first pinion gear and a second pinion holder for supporting the second pinion gear, and allowing the first and second pinion gears to move obliquely upward substantially perpendicular to the axis. As described above, the first and second pinion holders are brought closer to each other in an inclined state so that the first and second pinion gears are engaged with each other in a state where the respective axes are inclined from the vertical direction, and the first and second pinion gears are engaged with each other. A pinion gear assembly mechanism configured to dispose the first and second pinion gears on the planetary carrier on the carrier support portion in a state where the respective shaft centers extend vertically;
It is characterized by providing.

  The pinion gear assembly mechanism of this planetary gear assembly apparatus causes the first and second pinion holders to approach each other in an inclined state so as to allow the obliquely upward movement substantially perpendicular to the shaft centers of the first and second pinion gears. Thus, the first and second pinion gears are configured to mesh with each other in a state where the respective shaft centers are inclined from the vertical direction. That is, this pinion gear assembly mechanism allows the first and second pinion gears to move obliquely upward substantially orthogonal to the shaft center, and meshes the two with each other with their respective shaft centers tilted from the vertical direction. As a result, even if the first and second pinion gears are pressed against each other with the tooth tips in contact with each other due to the approach between the first and second pinion holders, at least one of the first and second pinion gears is rotated. At the same time, it can be moved obliquely upward substantially orthogonal to the shaft center, so that it is possible to prevent damage to the tooth tip by engaging both without applying excessive force. Further, since at least one of the first and second pinion gears moved obliquely upward substantially orthogonal to the shaft center descends obliquely downward due to gravity, the first and second pinion gears meshed with each other have their respective shafts It will be supported by the first and second pinion holders with the heart properly positioned. Then, the first and second pinion gears meshed with each other are arranged on the planetary carrier on the carrier support portion by the pinion gear assembly mechanism with the respective shaft centers extending vertically. Therefore, according to this planetary gear assembling apparatus, it is possible to assemble the first and second pinion gears with each other with high accuracy by engaging the first and second pinion gears while suppressing damage to the tooth tips.

  The pinion gear assembly mechanism may be configured to mesh the first and second pinion gears in a state where the respective shaft centers are separated from each other by a predetermined distance in the inclination direction of the first and second pinion holders. Thereby, when the first and second pinion gears are pressed against each other with the tooth tips in contact with each other due to the approach between the first and second pinion holders, the first and second pinion gears positioned on the upper side in the inclination direction One of the first and second pinion gears can be easily moved obliquely upward, and the pressing force applied to the first and second pinion gears can be easily converted into a force that rotates both in the opposite direction. The second pinion gear can be meshed more smoothly.

  Further, the inclination angle of the first and second pinion holders is such that at least one of the first and second pinion gears moves obliquely upward and meshes with each other after at least one of the first and second pinion gears. One may be set to move obliquely downward by its own weight and contact the first or second pinion holder. As a result, when the first and second pinion gears are pressed against each other with the tooth tips in contact with each other due to the approach between the first and second pinion holders, at least one of the first and second pinion gears is more It can be moved up and down appropriately.

Further, the planetary gear assembling apparatus is
A first gear housing portion that houses a plurality of the first pinion gears such that the axial center thereof extends horizontally;
A plurality of the second pinion gears are accommodated so that the axis extends horizontally while being arranged to be parallel to the first gear accommodating part and to face the first gear accommodating part via the carrier support part. And a second gear housing portion that
The pinion gear assembly mechanism is
A movable member that is movable toward and away from the carrier support portion and rotatable about an axis extending in parallel with the axis of the first and second pinion gears accommodated in the first or second gear accommodating portion; ,
A positioning member capable of positioning the moving member in an upright state and an inclined state;
A first arm member having a proximal end portion rotatably supported by the moving member;
A second arm member having a base end portion rotatably supported by the moving member,
The first pinion holder has a bottom portion and a back portion that can support the outer periphery of the first pinion gear, and a side portion that can support an end surface of the first pinion gear, respectively, and the base member is inclined and the first pinion holder is in the inclined state. When the arm member is in the standby position, the bottom portion faces the first gear housing portion with the back portion inclined and the side portion is located on the second gear housing portion side. Fixed to the free end of one arm member,
The second pinion holder has a bottom portion and a back portion capable of supporting the outer periphery of the second pinion gear, and a side portion capable of supporting an end surface of the second pinion gear, respectively, and the base member is in an inclined state so that the second pinion holder is inclined. When the arm member is in the standby position, the bottom portion faces the second gear housing portion while being inclined with the back portion down, and the side portion is located on the first gear housing portion side. You may fix to the free end part of 2 arm member.

  According to the pinion gear assembling mechanism configured as described above, when the moving member is inclined and the first and second arm members are rotated to the standby position, the bottom of the first pinion holder lowers the back. The bottom portion of the second pinion holder faces the lower end of the second gear housing portion while the bottom portion of the second pinion holder is inclined with the back portion down. Accordingly, the first pinion gear from the first gear housing portion is supported by at least the bottom portion and the back portion of the first pinion holder in a state where the axial center extends horizontally, and the second gear is supported by at least the bottom portion and the back portion of the second pinion holder. The second pinion gear from the housing portion can be supported in a state where the shaft center extends horizontally. In this state, if the first and second arm members are rotated so that the first and second pinion holders are close to each other, the first and second pinion gears are connected to the inclined first or second pinion holder. It is supported from three sides by the side part, the back part, and the bottom part, and approaches to each other in a state where the axis is inclined from the vertical direction. Furthermore, if the first and second pinion holders are opposed to each other, the first and second pinion gears are allowed to move obliquely upward in a direction along the side portion, that is, substantially perpendicular to the axis. The two-pinion gears can be meshed with each other with their respective axes inclined from the vertical direction. And if the moving member is brought into an upright state after the first and second pinion gears mesh with each other, the side portions of the first and second pinion holders supporting the end surfaces of the first or second pinion gears extend horizontally, The first and second pinion gears engaged with each other by the first and second pinion holders can be supported in a state where the respective shaft centers extend vertically. Accordingly, by bringing the moving member closer to the carrier support portion in this state, the first and second pinion gears engaged with each other can be disposed on the planetary carrier on the carrier support portion.

  Further, the pinion gear assembling mechanism is formed on the opposite side of the horizontal guide surface to the carrier support portion side of the horizontal guide surface that guides the cam follower provided in the moving member in the horizontal direction, and the moving member May include a guide member having an inclined guide surface that guides the cam follower obliquely downward when being separated from the carrier support portion. As a result, the moving member can be smoothly tilted by moving the moving member away from the carrier support portion, and the moving member can be smoothly put upright by moving the moving member closer to the carrier support portion. It becomes.

  The pinion gear assembly mechanism may include a push-in mechanism for pushing the first and second pinion gears from the first and second pinion holders into the planetary carrier on the carrier support portion. As a result, the first and second pinion gears can be easily transferred from the first and second pinion holders to the planetary carrier.

  Further, the first and second gear housing portions may be inclined so that the end portion on the first or second pinion holder side is downward, and the first and second arm members are in a standby state. Each of the first and second pinion gears located at the bottom when the position is reached may include a gear feed mechanism that allows the first or second pinion gear to drop to the first or second pinion holder. A rotation mechanism that rotates the planetary carrier by a predetermined angle may be included. Thus, by rotating the first and second arm members to the standby position, the first and second pinion gears are received one by one from the first and second gear housing portions to the first and second pinion holders. Can pass. Further, the planetary carrier is rotated by a predetermined angle by the rotation mechanism of the carrier support portion, so that the plurality of assembly positions of the planetary carrier are aligned with the first and second pinion holders holding the first and second pinion gears in order. Can be made. Therefore, according to this configuration, it is possible to efficiently and continuously assemble a set of a plurality of first and second pinion gears to one planetary carrier.

  A plurality of needles constituting a needle bearing and a dummy shaft may be inserted into center holes of the first and second pinion gears housed in the first or second gear housing part. The side portions of the first and second pinion holders have the plurality of needles and the dummy from the first or second pinion gear when the first and second pinion gears are arranged on the planetary carrier on the carrier support portion. A support plate that prevents the shaft from falling may be fixed. As a result, it is possible to easily assemble a planetary gear having a structure in which the first and second pinion gears are supported by the planetary carrier via the needle bearings without complicated work, and thus improve the productivity of such a planetary gear. It becomes possible to make it.

  Furthermore, the first and second pinion gears may be arranged on the planetary carrier in a state where a double washer is arranged on the upper end face of both. If the double washers are employed in this way, it is possible to reduce the labor required for the washer arrangement compared to the case where one washer is arranged for each of the first and second pinion gears. Further, according to the above-described pinion gear assembly mechanism, the first and second pinion gears meshed with each other can be supported by the first and second pinion holders with the respective shaft centers properly positioned. When the double washer is disposed on the first and second pinion gears, it is possible to easily suppress the axial misalignment between the first and second pinion gears and the double washer. Then, it is possible to improve the productivity of the planetary gear by simultaneously assembling the first and second pinion gears and the double washers meshed with each other to the planetary carrier.

  The planetary gear assembling apparatus includes a pinion shaft insertion mechanism for inserting a first pinion shaft into the planetary carrier and the first pinion gear, and inserting a second pinion shaft into the planetary carrier and the second pinion gear. Further, it may be provided. As a result, the productivity of the planetary gear can be further improved.

The planetary gear assembly method according to the present invention includes:
In the assembling method of the planetary gear assembled to the planetary carrier supported so that the first pinion gear and the second pinion gear mesh with each other and the shaft center extends vertically,
Supporting the first pinion gear with a first pinion holder and supporting the second pinion gear with a second pinion holder;
The first and second pinion gears are moved closer to each other with the first and second pinion holders tilted so as to allow the first and second pinion gears to move obliquely upward substantially perpendicular to the axis. Meshing with each other in a state where the respective axes are inclined from the vertical direction;
Disposing the first and second pinion gears meshed with each other on the planetary carrier in a state where the respective shaft centers extend vertically;
Is included.

  According to this method, it is possible to assemble the first and second pinion gears with each other with high accuracy while meshing the first and second pinion gears while suppressing damage to the tooth tips.

It is a perspective view which shows the planetary gear assembly apparatus 1 by this invention. 1 is a schematic configuration diagram showing a planetary gear assembling apparatus 1. FIG. It is a top view which shows the 1st and 2nd pinion gears 110 and 120. FIG. 3 is a schematic configuration diagram showing a pinion gear assembly mechanism 40. FIG. 3 is a schematic configuration diagram showing a pinion gear assembly mechanism 40. FIG. 3 is a schematic configuration diagram showing a pinion gear assembly mechanism 40. FIG. 3 is a schematic configuration diagram showing a pinion gear assembly mechanism 40. FIG. 3 is an enlarged view of a main part of a pinion gear assembly mechanism 40. FIG. 3 is a schematic configuration diagram showing a pinion gear assembly mechanism 40. FIG. 2 is a schematic configuration diagram showing an assembled state of first and second pinion gears 110 and 120 with respect to planetary carrier 100. FIG.

  Next, the form for implementing this invention is demonstrated, referring drawings.

  FIG. 1 is a plan view showing a planetary gear assembling apparatus 1 according to the present invention, and FIG. 2 is a side view showing the planetary gear assembling apparatus 1. A planetary gear assembling apparatus 1 shown in these drawings is used to engage a planetary carrier 100 of a double pinion planetary gear constituting a transmission mounted on a vehicle with a first pinion gear 110 and a second pinion gear 120 engaged with each other. Is. In the present embodiment, the first pinion gear 110 is a so-called long pinion gear, and the second pinion gear 120 is a short pinion gear that is shorter and lighter than the first pinion gear 110. Then, three sets of first and second pinion gears 110 and 120 are assembled to planetary carrier 100 at equal intervals (120 ° intervals).

  As shown in the figure, the planetary gear assembly device 1 of the present embodiment includes a carrier support portion 10 (see FIG. 2) that supports one planetary carrier 100 so that its axis extends vertically, and the planetary carrier 100. A pinion shaft insertion mechanism 20 (see FIG. 2) for inserting a first pinion shaft 111 into the first pinion gear 110 and a second pinion shaft 121 between the planetary carrier 100 and the second pinion gear 120, and a plurality of first pinion gears. 110, a first gear housing portion 31 for housing 110, a second gear housing portion 32 for housing a plurality of second pinion gears 120, and first and second pinion gears 110, 120 from the first and second gear housing portions 31, 32. The first and second pinion gears 110 and 120 engaged with each other and engaged with each other. And a pinion gear assembly mechanism 40 that can be placed in 100.

  As shown in FIG. 2, the carrier support 10 is inserted into the support 11, a table 11 on which a pallet 90 that supports the planetary carrier 100 is placed, a support 12 that rotatably supports the table 11, and the support 12. A rotating shaft 13 fixed to the center of the lower surface of the table 11 and a rotating mechanism 14 for rotating the rotating shaft 13 are included. In the table 11, a plurality (three in this embodiment) of first through-holes 11 a are equidistantly spaced (this number corresponds to the first shaft insertion holes 101 and 103 (see FIG. 10) formed in the planetary carrier 100. In the embodiment, they are formed at intervals of 120 °. Further, a plurality of (three in this embodiment) second through holes 11b are equally spaced on the table 11 so as to correspond to the second shaft insertion holes 102 and 104 (see FIG. 10) formed in the planetary carrier 100. (In this embodiment, it is formed at intervals of 120 °). The rotation mechanism 14 is configured as an intermittent rotation mechanism (not shown) including, for example, a worm gear, a parallel cam (heart cam), and the like. By rotating the rod 16 via the handle 15, the rotation shaft 13 and the table 11 are set in a predetermined manner. It can be rotated by an angle (120 ° in this embodiment). Note that the rotation mechanism 14 may have any configuration as long as it can rotate the planetary carrier 100 on the table 11 by a predetermined angle.

  As described above, when the first and second pinion gears 110 and 120 are assembled to the planetary carrier 100, the planetary carrier 100 is placed on the pallet 90 and placed on the table 11 of the carrier support unit 10 together with the pallet 90. As shown in FIG. 2, first and second pinion shafts 111 and 121 are inserted into the pallet 90 and the planetary carrier 100 in advance. Further, on the planetary carrier 100, washers W1 and W2 (see FIG. 10) are arranged prior to the assembly of the first and second pinion gears 110 and 120. In the pallet 90, a plurality (three in this embodiment) of first through holes 91 are equally spaced so as to correspond to the first shaft insertion holes 101, 103 of the planetary carrier 100 and the first through holes 11a of the table 11 ( In this embodiment, a plurality of (three in this embodiment) are formed so as to correspond to the second shaft insertion holes 102 and 104 of the planetary carrier 100 and the second through hole 11b of the table 11. The second through holes 92 are formed at equal intervals (120 ° intervals in the present embodiment).

  The pinion shaft insertion mechanism 20 is configured to push up the first and second pinion shafts 111 and 121 inserted into the pallet 90 to the planetary carrier 100. As shown in FIG. 2, the pinion shaft insertion mechanism 20 includes a plurality of (three in this embodiment) first push rods 21 and a plurality (three in this embodiment) second push rods 22, respectively. A plurality of (three in this embodiment) sliders that hold the first and second push rods 21 and 22 one by one and are supported around the support 12 of the carrier support 10 so as to be rotatable and slidable in the axial direction. 23, an operation lever 24, a roller 25 rotatably supported by one end of the operation lever 24, and a lever support member (not shown) that rotatably supports substantially the center in the longitudinal direction of the operation lever 24.

  In the present embodiment, the pinion shaft insertion mechanism 20 has a first and a second when the table 11 of the carrier support portion 10 is rotated by the rotation mechanism 14 with the bottom portion of each slider 23 in contact with a stopper (not shown). When the push rods 21 and 22 and the slider 23 all rotate integrally with the table 11 and the table 11 is rotated 120 ° by the rotation mechanism 14 with the bottom of each slider 23 in contact with the stopper. The three sliders 23 are configured to engage with the roller 25 of the operation lever 24 in order. When the operation lever 24 is rotated in the direction of the arrow in FIG. 2, the slider 23 facing the pinion gear assembly mechanism 40 is pushed up toward the table 11 via the roller 25. Thus, the first pinion shaft 111 and the second pinion shaft 121 are pushed up from the pallet 90 to the planetary carrier 100 by the first and second push rods 21 and 22 fixed to the slider 23 facing the pinion gear assembly mechanism 40. Is possible.

  The first gear housing portion 31 includes a long bottom plate 31 a and a pair of side portions 31 b erected on the bottom plate 31 a so as to face the end surfaces of the first pinion gears 110, respectively, and a plurality of first pinion gears 110. Are accommodated so that the axis extends horizontally. The second gear housing portion 32 includes a long bottom plate 32a and a pair of side portions 32b erected on the bottom plate 32a so as to face the end surface of the second pinion gear 120, respectively. The pinion gear 120 is accommodated so that the shaft center extends horizontally. As can be seen from FIG. 2, the first and second gear accommodating portions 31, 32 are arranged in an inclined state so that one end side (the left end in FIG. 2) of the bottom plates 31 a, 32 a is downward. In the present embodiment, the inclination angle α (see FIGS. 5 and 6) of the bottom plates 31a and 32a of the first and second gear housing portions 31 and 32 is set to, for example, 5 to 10 ° with respect to the horizontal plane. In the present embodiment, as shown in FIG. 3, the first and second pinion gears 110 and 120 each include a plurality of needles 114 or 124 constituting a needle bearing in each center hole and a dummy shaft 115 or 125. It is accommodated in the 1st or 2nd gear accommodating part 31 and 32 in the state inserted previously.

  Further, as shown in FIG. 1, the first gear housing portion 31 includes a first gear feed mechanism 33 that allows the first pinion gear 110 located at the lowermost side to be transferred to the pinion gear assembly mechanism 40 one by one. . The first gear feed mechanism 33 of the first gear housing 31 includes a first stopper (not shown) that can protrude upward and retract downward from the surface of one end (lower end) of the bottom plate 31a. A second stopper (not shown) that can protrude upward from the surface of the bottom plate 31a on the other end side (upper end side) of the bottom plate 31a with respect to one stopper (not shown), and first and second stoppers (not shown). And a link mechanism (not shown) for connecting them. The link mechanism retracts the second stopper below the surface of the bottom plate 31a when the first stopper protrudes upward from the surface of the bottom plate 31a, and when the first stopper retracts below the surface of the bottom plate 31a. The second stopper is configured to protrude upward from the surface of the bottom plate 31a.

  Similarly, as shown in FIG. 1 and FIG. 2, the second gear housing portion 32 allows the second pinion gear 120 located on the lowermost side to be transferred to the pinion gear assembly mechanism 40 one by one. A mechanism 34 is included. The second gear feed mechanism 34 of the second gear housing portion 32 is capable of projecting upward from the surface of one end (lower end) of the bottom plate 32a and retracting downward, and the first stopper 36a. A link connecting the second stopper 36b that can protrude upward from the surface of the bottom plate 32a on the other end side (upper end side) of the bottom plate 32a and can be retracted downward, and the first and second stoppers 36a and 36b. And a mechanism 38. The link mechanism 38 retracts the second stopper 36b below the surface of the bottom plate 32a when the first stopper 36a protrudes upward from the surface of the bottom plate 32a, and the first stopper 36a is below the surface of the bottom plate 32a. The second stopper 36b is configured to protrude upward from the surface of the bottom plate 32a when retracted.

  The pinion gear assembly mechanism 40 includes a first pinion holder 41 that can support the first pinion gear 110 from at least three sides, and a second pinion holder 42 that can support the second pinion gear 120 from at least three sides. As shown in FIG. 4, the first pinion holder 41 includes a bottom portion 43 and back portions 45 a and 45 b that can support the outer periphery of the first pinion gear 110, and a first side portion 47 that can support the end surface of the first pinion gear 110. And a second side portion 49 facing the first side portion 47. As shown in FIG. 4, the second pinion holder 42 includes a bottom portion 44 and back portions 46 a and 46 b that can support the outer periphery of the second pinion gear 120, and a first side portion 48 that can support the end surface of the second pinion gear 120. The first side portion 48 and the second side portion 50 facing each other. In the present embodiment, the bottom portions 43, 44, the back portions 45a, 45b, 46a, 46b, the first side portions 47, 48, and the second side portions 49, 50 of the first and second pinion holders 41, 42 are all rectangular. It is formed in a plate shape having a cross section.

  1 and 2, the pinion gear assembly mechanism 40 includes a guide rail 51, a slider 52 movable along the guide rail 51, a positioning member 53 fixed to the slider 52, and a positioning member. An arm support member (moving member) 54 that is rotatably supported by the positioning member 53 and positioned in an upright state and an inclined state by the positioning member 53, and a base end portion that is rotatably supported by the arm supporting member 54 A first arm member 55 having a base end portion rotatably supported by the arm support member 54, a guide member 60 for smoothly operating the arm support member 54, The first and second pinion gears 110 and 120 are moved from the first and second pinion holders 41 and 42 to the planetary carrier 1 on the carrier support portion 10. And a pushing mechanism 70 for pushing to 0.

  As shown in FIG. 2, the guide rail 51 is horizontal toward the carrier support portion 10 and orthogonal to the axis of the first and second pinion gears 110 and 120 accommodated in the first or second gear accommodation portions 31 and 32. Extend in the direction you want. The slider 52 can be moved closer to and away from the carrier support portion 10 along the guide rail 51. The positioning member 53 is pivotable about an axis extending in parallel with the axis of the first and second pinion gears 110 and 120 accommodated in the first or second gear accommodating portions 31 and 32. Support. Further, as shown in FIG. 2, the positioning member 53 is formed closer to the carrier support portion 10 than the arm support member 54 and is accommodated in the first or second gear housing portions 31 and 32. An upright surface 53a parallel to the axis of the pinion gears 110 and 120 and extending in the vertical direction, and an inclined surface 53b facing the upright surface 53a via the arm support member 54 and inclined from the upright surface 53a counterclockwise in FIG. Have

  As shown in FIG. 4, the arm support member 54 is made of a substantially L-shaped plate member having a rectangular cross section, and the first and second pinion gears whose longitudinal directions are accommodated in the first or second gear accommodating portions 31 and 32. It is rotatably connected to the positioning member 53 via a bolt so as to be parallel to the axial centers of 110 and 120. The arm support member 54 rotates in the clockwise direction in FIG. 2 with respect to the positioning member 53 and extends in parallel with a vertical surface orthogonal to the extending direction of the guide rail 51 when it contacts the upright surface 53a. To do. Hereinafter, this state is referred to as an “upright state” of the arm support member 54. Further, the arm support member 54 rotates counterclockwise in FIG. 2 with respect to the positioning member 53 and comes into a counterclockwise angle (acute angle) from a vertical plane orthogonal to the guide rail 51 when contacting the inclined surface 53b. ) It extends parallel to the inclined surface inclined by β. Hereinafter, this state is referred to as an “inclined state” of the arm support member 54. The angle β is preferably selected from the range of about 5 ° to 45 °, more preferably selected from the range of 10 ° to 30 °, and in the present embodiment, the angle β is set to 20 °.

  The first arm member 55 is made of a plate material having a rectangular cross section, and as shown in FIGS. 1 and 4, one end portion (base end portion) in the longitudinal direction is one end portion in the longitudinal direction of the arm support member 54, that is, the first gear. It is rotatably connected to the end portion (left end portion in FIG. 4) on the accommodating portion 31 side from the back side via a bolt and a nut. A knob 57 is fixed to the back surface of the free end portion of the first arm member 55 (see FIG. 1). The second arm member 56 is also made of a plate material having a rectangular cross section, and as shown in FIGS. 1 and 4, one end portion (base end portion) in the longitudinal direction is the other end portion in the longitudinal direction of the arm support member 54, i.e., second. The end of the gear accommodating portion 32 (the right end in FIG. 4) is rotatably connected from the carrier support portion 10 side through bolts and nuts. A knob 58 is fixed to the back surface of the free end portion of the second arm member 56 (see FIG. 1).

  Further, the first arm member 55 and the second arm member 56 are connected to each other via a telescopic link (not shown) for rotating both of them in the opposite direction by the same angle. When the first arm member 55 is rotated counterclockwise in FIG. 4 with respect to the arm support member 54, the first arm member 55 is actuated by the telescopic link as shown in FIG. It is positioned in a state of extending parallel to the longitudinal direction of, i.e., horizontally. Hereinafter, this position is referred to as a “standby position” of the first arm member 55. When the second arm member 56 is rotated clockwise in FIG. 4 with respect to the arm support member 54, the second arm member 56 is actuated by the telescopic link as shown in FIG. It is positioned so as to extend parallel to the longitudinal direction of 54, that is, horizontally. Hereinafter, this position is referred to as a “standby position” of the second arm member 56.

  As shown in FIGS. 1, 4 and 5, the first pinion holder 41 is configured so that the arm support member 54 is in an inclined state (see FIG. 5) and the first arm member 55 is in a standby position (FIG. 4). 1) so that the bottom 43 faces the end of the first gear housing portion 31 with the back portions 45a and 45b facing downward, and the first side portion 47 is positioned on the second gear housing portion 32 side. The free end portion of the arm member 55 is fixed. As shown in FIGS. 4 and 5, the bottom portion 43 is fixed vertically to the surface of the first arm member 55 on the carrier support portion 10 side. Therefore, when the arm support member 54 is in the inclined state and the first arm member 55 is in the standby position, the bottom 43 of the first pinion holder 41 is rotated by an angle β (> α) clockwise from the horizontal plane in FIG. It faces the lower end of the first gear housing 31 in an inclined state. Further, the two back portions 45a and 45b are fixed perpendicularly to the bottom portion 43 so that a gap 45c is formed between them. Further, the first side portion 47 is fixed vertically to both the bottom portion 43 and the back portion 45a, and the second side portion 49 is fixed vertically to both the bottom portion 43 and the back portion 45b. The distance between the first side portion 47 and the second side portion 49 is set slightly longer than the axial length of the first pinion gear 110. And the support plate 47a longer than the said 1st side part 47 is fixed to the inner surface (left surface in FIG. 4) of the 1st side part 47 so that it may protrude in the carrier support part 10 side. In addition, the second side portion 49 of the first pinion holder 41 has a substantially semicircular cutout 49a corresponding to the shape of the washer W3 disposed between the first pinion gear 110 and the planetary carrier 100 (see FIG. 5). ) Is formed.

  Further, as shown in FIGS. 1, 4 and 6, the second pinion holder 42 is in a state where the arm support member 54 is in an inclined state (see FIG. 6) and the second arm member 56 is in the standby position (see FIG. 6). 4), the bottom portion 44 faces the end of the second gear housing portion 32 with the back portions 46a and 46b facing downward, and the first side portion 48 is positioned on the second gear housing portion 32 side. It is fixed to the free end of the second arm member 56. As shown in FIGS. 4 and 6, the bottom portion 44 is fixed vertically to the surface of the second arm member 56 on the carrier support portion 10 side. Accordingly, when the arm support member 54 is in the inclined state and the second arm member 56 is in the standby position, the bottom 44 of the second pinion holder 42 is angled β (> α) counterclockwise in FIG. 6 from the horizontal plane. It faces the lower end of the second gear housing portion 32 in a state where it is inclined only by the angle. Further, the two back portions 46a and 46b are fixed perpendicular to the bottom portion 44 so that a gap 46c is formed between them. Furthermore, the first side 48 is fixed vertically to both the bottom 44 and the back 46a, and the second side 50 is fixed vertically to both the bottom 44 and the back 46b. The distance between the first side 48 and the second side 50 is set slightly longer than the axial length of the second pinion gear 120. A support plate 48a that is longer than the first side 48 is fixed to the inner surface of the first side 48 (the right side in FIG. 4) so as to protrude toward the carrier support 10. In addition, the second side portion 50 of the second pinion holder 42 has a substantially semicircular cutout 50a (see FIG. 6) corresponding to the shape of the washer W3 disposed between the second pinion gear 120 and the planetary carrier 100. ) Is formed.

  Further, in the pinion gear assembly mechanism 40 of the present embodiment, the first and second arm members 55 and 56 in the standby position are respectively connected to the arm support member 54 so that the first and second pinion holders 41 and 42 approach each other. When the first pinion gear 110 supported by the first pinion holder 41 and the second pinion gear 120 supported by the second pinion holder 42 are turned to each other as shown in FIG. The dimensions and mounting positions of the respective members are determined so as to mesh with each other. Further, in the pinion gear assembly mechanism 40 of this embodiment, when the first and second pinion gears 110 and 120 mesh with each other, the second pinion gear 120 is more carrier-supporting than the first pinion gear 110 as shown in FIG. Located on the 10 side, the axial centers of the two are a predetermined distance in the extending direction of the first side portion 47 and the support plate 47 a of the first pinion holder 41 and the first side portion 48 and the support plate 48 a of the second pinion holder 42. The dimensions and mounting positions of each member are determined so as to be separated from each other. In addition, in the pinion gear assembly mechanism 40 of the present embodiment, the first and second arm members 55 and 56 are rotated by approximately 90 ° from the standby position as shown in FIG. 7 and the arm support member 54 is brought into an upright state. At this time, the dimensions and mounting positions of the respective members are determined so that the first and second pinion gears 110 and 120 meshing with each other face the assembly position of the planetary carrier 100 on the carrier support portion 10.

  In the pinion gear assembly mechanism 40 of the present embodiment, the first and second arm members 55 include the first gear feeding mechanism 33 of the first gear housing portion 31 and the second gear feeding mechanism 34 of the second gear housing portion 32. , 56 are configured to operate in conjunction with the rotation of 56. That is, the link mechanism of the first gear feed mechanism 33 is connected to the first arm member 55 when the arm support member 54 is in an inclined state. The link mechanism of the first gear feed mechanism 33 is configured such that when the arm support member 54 is in an inclined state and the first arm member 55 is rotated by approximately 90 ° from the standby position as shown in FIG. When the first stopper protrudes upward from the surface of the bottom plate 31a and the second stopper is retracted downward from the surface of the bottom plate 31a, the arm support member 54 is in an inclined state and the first arm member 55 is in the standby position. The first stopper is retracted downward from the surface of the bottom plate 31a, and the second stopper is protruded upward from the surface of the bottom plate 31a.

  The link mechanism 38 of the second gear feed mechanism 33 is connected to the second arm member 56 when the arm support member 54 is in an inclined state. The link mechanism 38 moves the first stopper 36a to the bottom plate 32a when the arm support member 54 is in an inclined state and the second arm member 56 is rotated by about 90 ° from the standby position as shown in FIG. When the second stopper 36b is retracted downward from the surface of the bottom plate 32a and the arm support member 54 is in an inclined state and the second arm member 56 is in the standby position, the first stopper 36a Is retracted downward from the surface of the bottom plate 32a, and the second stopper 36b is protruded upward from the surface of the bottom plate 32a.

  As shown in FIG. 2, the guide member 60 is disposed on the side of the guide rail 51 so as to extend in parallel with the guide rail 51. The guide member 60 is supported by the arm support member 54 so as to be rotatable about an axis extending in parallel with the axis of the first and second pinion gears 110 and 120 accommodated in the first or second gear accommodating portions 31 and 32. The roller 61 as a cam follower is guided. In the present embodiment, the guide member 60 includes a horizontal guide surface 60a formed on the carrier support portion 10 side, and an inclined guide surface 60b formed on the opposite side of the horizontal guide surface 60a to the carrier support portion 10 side, It has the 1st stopper part 60c formed in the edge part by the side of the carrier support part 10, and the 2nd stopper part 60d formed in the edge part on the opposite side to the carrier support part 10 side. In the present embodiment, as illustrated, a smooth curved surface corresponding to the outer diameter of the roller 61 is formed between the inclined guide surface 60b and the second stopper portion 60d.

  In the present embodiment, when the roller 61 is lowered from the horizontal guide surface 60a to the inclined guide surface 60b as the arm support member 54 is pulled away from the carrier support portion 10, the movement of the roller 61 is moved to the second stopper. The arm support member 54 is rotated counterclockwise in FIG. 2 and is brought into contact with the inclined surface 53 b of the positioning member 53. Accordingly, the arm support member 54 can be smoothly inclined by separating the arm support member 54 from the carrier support portion 10. Further, when the roller 61 rides up from the inclined guide surface 60b to the horizontal guide surface 60a as the arm support member 54 is pushed so as to approach the carrier support portion 10, the arm support member 54 in FIG. It rotates clockwise and contacts the upright surface 53a of the positioning member 53. Thereby, the arm support member 54 can be smoothly brought into an upright state by causing the arm support member 54 to approach the carrier support portion 10. The guide member 60 (and the roller 61) may be provided in two rows with respect to the arm support member 54.

  The pushing mechanism 70 is for pushing the meshed first and second pinion gears 110 and 120 from the first and second pinion holders 41 and 42 into the planetary carrier 100 on the carrier support portion 10. As shown in FIGS. 1 and 9, the push-in mechanism 70 is supported by a rod support member 71 fixed to the arm support member 54 and slidable in a direction orthogonal to the arm support member 54 by the rod support member 71. Two rods 72, a contact member 73 fixed to the end of each rod 72 on the first and second pinion holders 41, 42 side, and a contact member 73 side of each rod 72 opposite to the contact member 73 side. And a gripping portion 74 fixed to the end portion.

  The contact member 73 has a thickness smaller than the gap 45c between the two back portions 45a and 45b of the first pinion holder 41 and the gap 46c between the two back portions 46a and 46b of the second pinion holder 42. Further, the contact member 73 is formed with a notch 73a formed by two arcs corresponding to the outer circumferences of the first and second pinion gears 110 and 120 meshed with each other (see FIG. 1). As shown in FIGS. 7 and 9, when the first and second pinion gears 110 and 120 are engaged with each other, the two rods 72 are arranged so that the contact member 73 has two back portions 45 a and 45 b of the first pinion holder 41. It is supported by the rod support member 71 so that it can pass through the gap 45c between them and the gap 46c between the two back portions 46a, 46b of the second pinion holder 42.

  Next, a procedure for assembling the first pinion gear 110 and the second pinion gear 120 to each other and assembling the planetary carrier 100 using the planetary gear assembling apparatus 1 configured as described above will be described. In the present embodiment, the assembly work of the first and second pinion gears 110 and 120 is performed by the operator manually operating the planetary gear assembly apparatus 1.

  When the first and second pinion gears 110 and 120 are assembled to the planetary carrier 100, the plurality of first pinion gears 110 in which the plurality of needles 114 and the dummy shaft 115 are inserted into the center hole are arranged in the first gear housing portion 31. At the same time, a plurality of second pinion gears 120 in which a plurality of needles 124 and dummy shafts 125 are inserted into the center hole are arranged in the second gear housing portion 32. As described above, when the first and second pinion gears 110 and 120 are arranged in the first and second gear accommodating portions 31 and 32, the knobs 57 and 58 are pulled forward to bring the arm support member 54 into an inclined state. The first and second arm members 55 and 56 are rotated by about 90 ° from the standby position via the knobs 57 and 58 (see FIG. 7). As a result, the first stopper of the first gear feed mechanism 33 protrudes upward from the surface of the bottom plate 31a and the second stopper retracts downward from the surface of the bottom plate 31a, so that the inclined first gear housing portion 31 (bottom plate 31a A plurality of first pinion gears 110 can be held by the first stopper so as not to fall. Similarly, since the first stopper 36a of the second gear feed mechanism 34 protrudes upward from the surface of the bottom plate 32a and the second stopper 36b retracts downward from the surface of the bottom plate 32a, the inclined second gear housing portion 32 ( The plurality of second pinion gears 120 can be held on the bottom plate 32a) so as not to fall by the second stopper 36a.

  Separately, the planetary carrier 100 is placed on the pallet 90 in which the first pinion shaft 111 and the second pinion shaft 121 are inserted. That is, as shown in FIG. 10, the planetary carrier 100 is placed so that the tip of the first pinion shaft 111 can be seen from each first shaft insertion hole 103 and the tip of the second pinion shaft 121 can be seen from each second shaft insertion hole 104. Place on pallet 90. A washer W1 is disposed at the tip of the first pinion shaft 111 slightly projecting inside the planetary carrier 100, and a washer W2 is disposed at the tip of the second pinion shaft 121 slightly projecting inside the planetary carrier 100. . The pallet 90 that supports the planetary carrier 100 and incorporates the first and second pinion shafts 111 and 121 and the washers W1 and W2 is placed (positioned) on the table 11 of the carrier support portion 10 of the planetary gear assembly apparatus 1. Is done.

  When preparation for assembling the first and second pinion gears 110 and 120 with respect to the planetary carrier 100 is completed, the knobs 57 and 58 are pulled while the arm support member 54 is maintained in an inclined state by pulling the knobs 57 and 58 forward. The first and second arm members 55 and 56 are rotated to the standby position via 58. As a result, the bottom portion 43 of the first pinion holder 41 is opposed to the lower end of the first gear housing portion 31 in a state where the bottom portion 43 is inclined from the horizontal plane by an angle β, and the bottom portion 44 of the second pinion holder 42 is inclined from the horizontal plane by an angle β. It faces the lower end of the second gear housing portion 32 in a state. As the first arm member 55 reaches the standby position, the first stopper of the first gear feed mechanism 33 is retracted downward from the surface of the bottom plate 31a and the second stopper protrudes upward from the surface of the bottom plate 31a. To do. Similarly, as the second arm member 56 reaches the standby position, the first stopper 36a of the second gear feed mechanism 34 retreats downward from the surface of the bottom plate 32a, and the second stopper 36b extends from the surface of the bottom plate 32a. Projects upward. As a result, the first pinion gear 110 located on the lowermost side of the first gear housing portion 31 rolls down to the first pinion holder 41, and the shaft center is horizontal by at least the bottom 43 and the back portions 45a and 45b of the first pinion holder 41. It is supported in a state extending to. In addition, the second pinion gear 120 located at the lowermost side of the second gear housing portion 32 rolls down to the second pinion holder 42, and the shaft center is horizontal by at least the bottom 44 and the back portions 46a and 46b of the second pinion holder 42. Supported in an extended state.

  Next, the first and second pinion holders 41 and 42 approach the first and second arm members 55 and 56 in the standby position via the knobs 57 and 58 while maintaining the arm support member 54 in an inclined state. In this manner, each of the arm support members 54 is rotated by approximately 90 °. While the first arm member 55 rotates in this way, the lower end surface of the first pinion gear 110 is supported by the inclined first side portion 47 (and support plate 47a) of the first pinion holder 41, and The outer periphery of the first pinion gear 110 is supported by the back portions 45 a and 45 b and the bottom portion 43 of the first pinion holder 41 inclined. Further, while the second arm member 56 rotates, the lower end surface of the second pinion gear 120 is supported by the first side portion 48 (and the support plate 48a) of the inclined second pinion holder 42, and second The outer periphery of the pinion gear 120 is supported by the back portions 46 a and 46 and the bottom portion 44 of the second pinion holder 42 that is inclined. That is, the first and second pinion gears 110 and 120 are supported from three sides by the inclined first or second pinion holders 41 and 42 and approach each other with the shaft center inclined from the vertical direction.

  When the first and second arm members are rotated by approximately 90 ° from the standby position, as shown in FIGS. 7 to 9, the first and second pinion holders 41 and 42 are moved to the first side portion 47 (and The support plate 47a) and the first side portion 48 (support plate 48a) face each other with the back portions 45a, 45b, 46a, 46b facing down and inclined from the horizontal plane by an angle β. Moreover, the axial center of the 1st and 2nd pinion gears 110 and 120 is extended in the direction which makes the angle (beta) from a perpendicular direction (refer FIG. 9). Therefore, according to the pinion gear assembly mechanism 40, the first and second pinion holders 41 and 42 are opposed to each other by rotating the first and second arm members 55 and 56 as described above, so that the first side The first and second pinion gears 110 and 120 are vertically oriented with respect to the first and second pinion gears 110 and 120 while allowing movement in a direction along the portions 47 and 48, that is, obliquely upward (in the direction of the white arrow in FIG. 9) substantially orthogonal to the axis. Can be engaged with each other while being inclined by an angle β.

  Thereby, even if the first and second pinion gears 110.120 are pressed against each other with the tooth tips in contact with each other due to the approach between the first and second pinion holders 41, 42, the first and second pinion gears 110. At least one of 120 can be rotated and moved obliquely upward substantially perpendicular to the axis along the first side portions 47 and 48 and the support plates 47a and 48a. As a result, the first and second pinion gears 110 and 120 can be meshed with each other without applying an excessive force, and damage to the tooth tip can be suppressed. Since at least one of the first and second pinion gears 110 and 120 moved obliquely upward substantially orthogonal to the axis is lowered obliquely downward due to gravity, the first and second pinion gears engaged with each other are Each shaft center is supported by the first and second pinion holders 41 and 42 in a properly positioned state.

  Further, as shown in FIG. 8, the above-described pinion gear assembly mechanism 40 has the first and second pinion gears 110 and 120 extending from the first side portions 47 and 48 and the support plates 47a and 48a. The first and second pinion holders 41, 42 (first side portions 47, 48, etc.) are engaged with each other in a state separated by a predetermined distance. Therefore, when the first and second pinion gears 110 and 120 are pressed against each other with the tooth tips in contact with each other due to the close proximity of the first and second pinion holders 41 and 42, the second pinion is located on the upper side in the inclination direction. The pinion gear 120 is easy to move obliquely upward, and the pressing force applied to the first and second pinion gears 110 and 120 can be easily converted into a force that rotates both in the opposite direction. Therefore, the first and second pinion gears 110 and 120 can be meshed more smoothly. Further, as in the present embodiment, the first and second pinion gears 110, 110, with the second pinion gear 120, which is lighter than the first pinion gear 110, positioned on the upper side in the tilt direction of the first and second pinion holders 41, 42. If 120 is meshed with each other, the relative movement of the first and second pinion gears 110 and 120 associated with the meshing can be better tolerated.

  After the first and second pinion gears 110 and 120 are engaged with each other as described above, a washer W3 is disposed on the upper end surfaces of both as shown in FIG. In the present embodiment, the washer W3 is a double washer (glass washer) in which the above-described washer W1 and W2 are integrated. By adopting such a double washer, it is possible to reduce the labor required for the washer arrangement compared to the case where one washer is arranged for each of the first and second pinion gears 110 and 120 meshed with each other. . Further, as described above, according to the pinion gear assembly mechanism 40, the first and second pinion holders 41, 41 with the first and second pinion gears 110, 120 meshed with each other are properly positioned. 42 can be supported. Furthermore, when the first and second pinion gears 110 and 120 are engaged with each other, the second side portion 49 of the first pinion holder 41 and the second side portion 50 of the second pinion holder 42 positioned above both are A notch 49a or 50a corresponding to the shape of the washer W3 is formed. Therefore, when the washer W3 is disposed on the first and second pinion gears 110 and 120, it is possible to easily suppress the deviation of the axial center between the first and second pinion gears 110 and 120 and the washer W3. It becomes.

  Subsequently, the first and second arm members 55, 56, the arm support member 54, the positioning member 53, the slider 52, and the like are integrated by pushing the knobs 57 and 58 while the first and second pinion holders 41 and 42 are brought close to each other. To the carrier support 10. Thus, as the arm support member 54 and the like are pushed by the carrier support portion 10, the roller 61 rides up from the inclined guide surface 60 b to the horizontal guide surface 60 a, and accordingly the arm support member 54 rotates to rotate the positioning member 53. It abuts on the upright surface 53a. Thus, the arm support member 54 and the like are brought close to the carrier support portion 10 to make the arm support member 54 smoothly upright, and the first side portions 47 and 48 of the first and second pinion holders 41 and 42. The (support plates 47a, 48a) can be horizontal and the axial centers of the first and second pinion gears 110, 120 can be extended vertically. Then, the arm support member 54 and the like are moved toward the carrier support portion 10 until the roller 61 comes into contact with the first stopper portion 60c on the carrier support portion 10 side of the guide member 60.

  When the roller 61 contacts the first stopper portion 60c of the guide member 60, the support plate 47a of the first pinion holder 41 and the support plate 48a of the second pinion holder 42 support the carrier as shown in FIGS. The first and first pinion gears 110 and 120 that are located on the inner bottom surface of the planetary carrier 100 on the portion 10 (before the washers W1 and W2) and supported by the first and second pinion holders 41 and 42 are planetary carriers. It faces the assembly position at 100. Accordingly, in this state, by pushing the grip portion 74 of the push-in mechanism 70 and moving the rod 72 and the contact member 73 toward the carrier support portion 10, the needles 114 and 124 and the dummy are moved from the first and second pinion gears 110 and 120. The first and second pinion gears 110 and 120 and the washer W3 meshing with each other can be disposed on the planetary carrier 100 on the carrier support 10 while preventing the shafts 115 and 125 from falling off. It should be noted that the components and mounting positions of the carrier support 10 and the pinion gear assembly mechanism 40, the pallet 90, and the like are the same as those when the first and second pinion gears 110 and 120 and the washer W3 are disposed on the planetary carrier 100. The shaft center of the first pinion gear 110 and the shaft center of the first shaft insertion holes 101 and 103 coincide with each other, and the axis of the second pinion gear 120 and the shaft center of the second shaft insertion holes 102 and 104 coincide with each other. Needless to say.

  Thus, when one set of the first and second pinion gears 110 and 120 is arranged with respect to the planetary carrier 100, the knobs 57 and 58 are pulled forward, and the first and second pinion holders 41 and 42, first and second The arm members 55 and 56, the arm support member 54, and the like are integrally separated from the carrier support portion 10. At this time, since the first and second pinion shafts 111 and 112 are inserted in advance and the washers W1 and W2 are disposed in the pallet 90 and the planetary carrier 100 as described above, the first and second pinion gears are disposed. The needles 114 and 124 and the dummy shafts 115 and 125 do not fall out from the 110 and 120. Then, the arm support member 54 and the like are separated from the carrier support portion 10 until the roller 61 descends from the horizontal guide surface 60a to the inclined guide surface 60b and contacts the second stopper portion 60d, so that the arm support member 54 is inclined. After that, the first and second arm members 55 and 56 are rotated to the standby position via the knobs 57 and 58. As a result, the first pinion gear 110 located on the lowermost side of the first gear housing portion 31 rolls down to the first pinion holder 41 and is supported by the first pinion holder 41. Further, the second pinion gear 120 located on the lowermost side of the second gear housing portion 32 rolls down to the second pinion holder 42 and is supported by the second pinion holder 42.

  In this way, when the first and second pinion gears 110 and 120 to be assembled next are supported by the first or second pinion holders 41 and 42, the operation lever 24 of the pinion shaft insertion mechanism 20 is rotated. . Accordingly, the slider 23 facing the pinion gear assembly mechanism 40 is pushed up toward the table 11, and the first pinion shaft 111 and the second pinion shaft are driven by the first and second push rods 21 and 22 fixed to the slider 23. 121 is pushed up from the pallet 90 to the planetary carrier 100. Thus, when the first pinion shaft 111 and the second pinion shaft 121 are pushed up to the planetary carrier 100, the dummy shaft 115 protrudes upward from the first shaft insertion hole 101 of the planetary carrier 100 and from the second shaft insertion hole 102. Since the dummy shaft 125 protrudes upward, the dummy shafts 115 and 125 are removed and placed in a storage place.

  In the present embodiment, when the first pinion shaft 111 is inserted into the first shaft insertion hole 101 of the planetary carrier 100 and the second pinion shaft 121 is inserted into the second shaft insertion hole 102, the first and first The lower ends of the two pinion shafts 111 and 121 are supported by a movable stopper (not shown) provided on the pallet 90. Therefore, even if the first and second push rods 21 and 22 and the slider 23 are lowered from the table 11 thereafter, the first and second pinion shafts 111 and 121 will not fall out of the first and second pinion gears 110 and 120. Absent.

  Thus, after the first and second pinion shafts 111 and 121 are inserted into the planetary carrier 100 and the first and second pinion gears 110 and 120, the handle 11 of the rotation mechanism 14 of the carrier support portion 10 is turned to rotate the table 11 by 120 °. Let As a result, the next set of the first and second pinion gears 110 and 120 can be assembled to the planetary carrier 100. Then, by repeating the above-described processing, the assembly of all the first and second pinion gears 110 and 120 and the washer W3 to the planetary carrier 100 can be completed. When the assembly of the first and second pinion gears 110 and 120 and the washer W3 is completed, the planetary carrier 100 is removed from the carrier support portion 10 together with the pallet 90, and is temporarily stored in the storage place, or together with the pallet 90, the next process. It is transported to the construction site.

  As described above, the pinion gear assembly mechanism 40 of the planetary gear assembly apparatus 1 allows the first and second pinions to move obliquely upward substantially orthogonal to the axis of the first and second pinion gears 110 and 120. The pinion holders 41 and 42 are made to approach each other in an inclined state so that the first and second pinion gears 110 and 120 are engaged with each other in a state in which the respective shaft centers are inclined from the vertical direction. That is, the pinion gear assembly mechanism 40 engages the first and second pinion gears 110 and 120 while allowing the first and second pinion gears 110 and 120 to move obliquely upward substantially orthogonal to the shaft center, with each shaft center tilting from the vertical direction. Let

  Thereby, even if the first and second pinion gears 110 and 120 are pressed against each other with the tooth tips in contact with each other due to the proximity of the first and second pinion holders 41 and 42, the first and second pinion gears 110, Since at least one of 120 can be rotated and moved obliquely upward substantially orthogonal to the shaft center, both of them can be engaged with each other without applying an excessive force, and damage to the tooth tip can be suppressed. Further, the above-described pinion gear assembly mechanism 40 meshes the first and second pinion gears 110 and 120 with their respective shaft centers spaced apart from each other by a predetermined distance in the inclination direction of the first and second pinion holders 41 and 42. It is. As a result, when the first and second pinion gears 110 and 120 are pressed against each other with the tooth tips in contact with each other due to the proximity of the first and second pinion holders 41 and 42, the first pinion holders 41 and 42 are positioned on the upper side in the inclination direction. The two-pinion gear 120 is easily moved obliquely upward, and the pressing force applied to the first and second pinion gears 110 and 120 is easily converted into a force that rotates both in the opposite direction, so that an unreasonable force is applied. Thus, the first and second pinion gears 110 and 120 can be meshed more smoothly.

  Furthermore, since at least one of the first and second pinion gears 110, 120 moved obliquely upward substantially orthogonal to the shaft center descends obliquely downward due to gravity, the first and second pinion gears 110, meshed with each other. 120 is supported by the first and second pinion holders 41 and 42 in a state where the respective shaft centers are properly positioned. Then, the first and second pinion gears 110 and 120 meshed with each other are arranged on the planetary carrier 100 on the carrier support portion 10 by the pinion gear assembly mechanism 40 in a state where the respective shaft centers extend vertically. Therefore, according to the planetary gear assembling apparatus 1, the first and second pinion gears 110 and 120 can be meshed with each other and assembled to the planetary carrier 100 with high accuracy while suppressing damage to the tooth tips.

  Note that the inclination angle (angle β) of the first and second pinion holders 41 and 42 is such that at least one of the first and second pinion gears 110 and 120 moves obliquely upward and meshes with each other. Further, at least one of the second pinion gears 110 and 120 may be set so as to move obliquely downward by its own weight and come into contact with the first or second pinion holder. Thus, when the first and second pinion gears 110 and 120 are pressed against each other with the tooth tips in contact with each other due to the proximity of the first and second pinion holders 41 and 42, the first and second pinion gears 110 are provided. , 120 can be moved up and down more appropriately.

  In the above-described pinion gear assembly mechanism 40, the bottom 43 of the first pinion holder 41 can be obtained by setting the arm support member 54 in an inclined state and rotating the first and second arm members 55 and 56 to the standby position. Is opposed to the lower end of the first gear housing portion 31 with the back portions 45a and 45b tilted downward, and the second gear housing with the bottom 44 of the second pinion holder tilted with the back portions 46a and 46b downward. Opposite the lower end of the part 32. Accordingly, at least the bottom 43 and the back portions 45a and 45b of the first pinion holder 41 support the first pinion gear 110 from the first gear housing portion 31 in a state where the shaft center extends horizontally, and at least the second pinion holder 41 The bottom portion 44 and the back portions 46a and 46b can support the second pinion gear from the second gear housing portion 32 in a state where the shaft center extends horizontally.

  Further, if the first and second arm members 55 and 56 are rotated so that the first and second pinion holders 41 and 42 supporting the first or second pinion gears 110 and 120 approach each other, The second pinion gears 110 and 120 are supported from three sides by the first side portions 47 and 48, the back portions 45a, 45b, 46a and 46b, and the bottom portions 43 and 44 of the inclined first and second pinion holders 41 and 42, and shafts. They approach each other with their hearts tilted from the vertical direction. And if the 1st and 2nd pinion holders 41 and 42 are made to oppose each other, the direction along the 1st side parts 47 and 48 of the 1st and 2nd pinion gears 110 and 120, ie, the diagonally upward substantially orthogonal to an axial center. The first and second pinion gears 110 and 120 can be meshed with each other in a state where the respective shaft centers are inclined from the vertical direction.

  If the arm support member 54 is brought into an upright state after the first and second pinion gears 110 and 120 mesh with each other, the first and second pinions that support the end surfaces (lower end surfaces) of the first or second pinion gears 110 and 120 are supported. The first side portions 47 and 48 of the pinion holders 41 and 42 extend horizontally, and the first and second pinion gears 110 and 120 meshed with each other by the first and second pinion holders 41 and 42 have their respective axes vertically. It can support in the state extended to. Therefore, by bringing the arm support member 54 closer to the carrier support portion 10 in this state, the first and second pinion gears 110 and 120 engaged with each other can be disposed on the planetary carrier 100 on the carrier support portion 10. .

  The pinion gear assembly mechanism 40 includes a horizontal guide surface 60a that horizontally guides a roller 61 as a cam follower provided on the arm support member 54, and a side opposite to the carrier support portion 10 side of the horizontal guide surface 60a. And a guide member 60 having an inclined guide surface 60b that guides the roller 61 obliquely downward when the arm support member 54 is separated from the carrier support portion 10. As a result, the arm support member 54 is moved away from the carrier support portion 10 so that the arm support member 54 is smoothly inclined, and the arm support member 54 is moved closer to the carrier support portion 10 so that the arm support member 54 is moved closer to the carrier support portion 10. Can be brought into a smooth upright state.

  Furthermore, the pinion gear assembly mechanism 40 includes a push-in mechanism 70 that pushes the first and second pinion gears 110 and 120 from the first and second pinion holders 41 and 42 into the planetary carrier 100 on the carrier support portion 10. Thus, the first and second pinion gears 110 and 120 can be easily transferred from the first and second pinion holders 41 and 42 to the planetary carrier 100.

  In addition, the first gear housing portion 31 of the planetary gear assembly device 1 is inclined so that the end portion on the first pinion holder 41 side is downward, and the first gear member 55 is the most when the first arm member 55 reaches the standby position. A first gear feed mechanism 33 that allows the first pinion gear 110 located on the lower side to drop to the first pinion holder 41 is included. Similarly, the second gear housing portion 32 is inclined so that the end portion on the second pinion holder 42 side is downward, and is located on the lowermost side when the second arm member 56 reaches the standby position. A second gear feed mechanism 34 that allows the second pinion gear 120 to drop onto the second pinion holder 42 is included. The carrier support unit 10 includes a rotation mechanism 14 that rotates the table 11, that is, the planetary carrier 100 by a predetermined angle. Accordingly, the first and second arm members 55 and 56 are rotated to the standby positions, whereby the first and second gear housing portions 31 and 32 are moved to the first and second pinion holders 41 and 42. The second pinion gears 110 and 120 can be delivered one by one. In addition, the planetary carrier 100 is rotated by a predetermined angle by the rotation mechanism 14 of the carrier support unit 10, whereby the first and second holding positions of the first and second pinion gears 110 and 120 are set at a plurality of assembly positions of the planetary carrier 100. It is possible to face the pinion holders 41 and 42 in order. Therefore, according to the planetary gear assembling apparatus 1, a set of a plurality of first and second pinion gears 110 and 120 can be continuously and efficiently assembled to one planetary carrier 100.

  Furthermore, in the above embodiment, the center holes of the first and second pinion gears 110 and 120 accommodated in the first or second gear accommodating portions 31 and 32 have a plurality of needles 114 or 124 constituting a needle bearing, The dummy shaft 115 or 125 is inserted. When the first and second pinion gears 110 and 120 are arranged on the planetary carrier 100 on the carrier support 10 on the first side portions 47 and 48 of the first and second pinion holders 41 and 42, Support plates 47a and 48a that prevent the plurality of needles 114 or 125 and the dummy shaft 115 or 125 from falling from the second pinion gear 110 are fixed. Thereby, the planetary gear having a structure in which the first and second pinion gears 110 and 120 are supported by the planetary carrier 100 via the needle bearing can be easily assembled without complicated work. Productivity can be improved. However, the planetary gear assembling apparatus 1 can be applied to the assembling of the planetary gear including the planetary carrier 100 that supports the first and second pinion gears 110 and 120 via bearings other than the needle bearings with some or some modifications. Needless to say.

  Moreover, in the said embodiment, the 1st and 2nd pinion gears 110 and 120 are arrange | positioned at the planetary carrier 100 in the state by which the washer W3 which is a double washer is arrange | positioned at the upper end surface of both. If a double washer is employed as the washer W3 in this way, the labor required for the washer arrangement can be reduced as compared with the case where one washer is arranged for each of the first and second pinion gears 110 and 120. . Further, according to the above-described pinion gear assembly mechanism 40, the first and second pinion gears 110 and 120 engaged with each other are supported by the first and second pinion holders 41 and 42 in a state where the respective shaft centers are properly positioned. Therefore, when the washer W3 is disposed on the first and second pinion gears 110 and 120, it is possible to easily suppress the axial misalignment between the first and second pinion gears 110 and 120 and the washer W3. It becomes possible to do. Then, by assembling the first and second pinion gears 110 and 120 and the washer W3 meshed with each other to the planetary carrier 100 at the same time, it becomes possible to improve the productivity of the planetary gear. However, instead of the washer W3, however, the first and second pinion gears 110 and 120 are arranged on the planetary carrier 100 with one dedicated washer arranged in place of the washer W3 which is a double washer. May be.

  Further, the planetary gear assembling apparatus 1 inserts the first pinion shaft 111 into the planetary carrier 100 and the first pinion gear 110, and inserts the pinion shaft into which the planetary carrier 100, the second pinion gear 120, and the second pinion shaft 121 are inserted. A mechanism 20 is provided. As a result, the first and second pinion gears 110, 120 and the like can be efficiently assembled to the plurality of planetary carriers 100, so that the productivity of the planetary gear can be further improved. The pinion shaft insertion mechanism 20 is not limited to pushing up the first and second pinion shafts 111 and 121 toward the planetary carrier 100.

  In addition, although the said planetary gear assembly apparatus 1 was demonstrated as what is operated by a worker's manual work, it is not restricted to this. That is, the rotation of the first and second arm members 55 and 56 in the planetary gear assembling apparatus 1, the approach and separation of the arm support member 54 and the like from the carrier support portion 10, the rotation of the operation lever 24 of the pinion shaft insertion mechanism 20, the carrier If part or all of the rotation of the table 11 of the support portion 10 is performed by an electronically or electrically controlled actuator or the like, the assembly of the first and second pinion gears 110 and 120 to the planetary carrier 100 is partially performed. Alternatively, it can be fully automated. Further, the insertion of the first and second pinion shafts 111 and 121 to the pallet 90, the placement of the planetary carrier 100 to the pallet 90, and the assembly of the washers W1 and W2 are all performed by the assembly robot, and the planetary carrier 100 and the pallet 90 are mounted. By using a transfer robot for transfer, the above-described series of processing can be completely automated.

  Further, the pinion gear assembly mechanism 40 is not limited to one in which the first and second pinion gears 110 and 120 are engaged with each other by rotating the first and second arm members 55 and 56, and the first and second pinion holders. You may comprise so that 41 and 42 may be approached and separated horizontally in the state which inclined. Further, the pinion shaft insertion mechanism 20 is not limited to one in which the first and second pinion shafts 111 and 121 are inserted into the planetary carrier 100 or the like one by one, but all the first and second pinion gears 110, The first and second pinion shafts 111 and 112 may be collectively inserted into the planetary carrier 100 or the like after the assembly of 120 is completed. The first and second pinion gears 110 and 120 described above have different axial lengths, but the planetary gear assembly device 1 and the pinion gear assembly mechanism 40 are a pair of planetary carriers having the same axial length. Needless to say, the present invention can be easily applied to the assembly of the pinion gear.

  Here, the correspondence between the main elements of the above embodiment and the main elements of the invention described in the column of means for solving the problem is described in the column of means for solving the problem by the embodiment. The embodiment for carrying out the invention is an example for specifically explaining the embodiment, and does not limit the elements of the invention described in the column of means for solving the problem. That is, the embodiment is merely a specific example of the invention described in the means for solving the problem, and the interpretation of the invention described in the means for solving the problem is It should be done based on the description.

  Although the embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and it goes without saying that various modifications can be made without departing from the scope of the present invention. .

  The present invention can be used in the planetary gear manufacturing industry.

  DESCRIPTION OF SYMBOLS 1 Planetary gear assembly apparatus, 10 Carrier support part, 11 Table, 11a 1st through-hole, 11b 2nd through-hole, 12 support | pillar, 13 rotating shaft, 14 rotating mechanism, 15 handle, 16 rod, 17 stopper, 20 pinion shaft insertion Mechanism, 21 1st pushing rod, 22 2nd pushing rod, 23 Slider, 24 Operation lever, 25 Roller, 31 1st gear accommodating part, 31a, 32a Bottom plate, 31b, 32b Side part, 32 2nd gear accommodating part, 33 First gear feed mechanism, 34 Second gear feed mechanism, 36a First stopper, 36b Second stopper, 38 Link mechanism, 40 Pinion gear assembly mechanism, 41 First pinion holder, 42 Second pinion holder, 43, 44 Bottom, 45a, 45b, 46a, 46b back, 45c, 46c gap, 47, 48 first side 47a, 48a support plate, 49, 50 second side, 49a, 50a notch, 51 guide rail, 52 slider, 53 positioning member, 53b inclined surface, 54 arm support, 55 first arm member, 56 second arm Member, 57, 58 knob, 60 guide member, 60a horizontal guide surface, 60b inclined guide surface, 60c first stopper portion, 60d second stopper portion, 61 roller, 70 pushing mechanism, 71 rod support member, 72 rod, 73 Contact member, 73a Notch, 74 gripping part, 90 pallet, 91 first through hole, 92 second through hole, 100 planetary carrier, 101, 103 first shaft insertion hole, 102, 104 second shaft insertion hole, 110 first 1 pinion gear, 111 1st pinion shaft, 114, 124 Need , 115, 125 dummy shaft, 120 the second pinion gear, 121 a second pinion shaft, W1, W2, W3 washer.

Claims (11)

In a planetary gear assembly apparatus in which a first pinion gear and a second pinion gear are engaged with each other and assembled to a planetary carrier,
A carrier support for supporting the planetary carrier so that the axis extends vertically;
Including a first pinion holder for supporting the first pinion gear and a second pinion holder for supporting the second pinion gear, and allowing the first and second pinion gears to move obliquely upward substantially perpendicular to the axis. As described above, the first and second pinion holders are brought closer to each other in an inclined state so that the first and second pinion gears are engaged with each other in a state where the respective axes are inclined from the vertical direction, and the first and second pinion gears are engaged with each other. A pinion gear assembly mechanism configured to dispose the first and second pinion gears on the planetary carrier on the carrier support portion in a state where the respective shaft centers extend vertically;
A planetary gear assembling apparatus comprising: The planetary gear assembly apparatus according to claim 1,
The planetary gear assembling apparatus is characterized in that the pinion gear assembling mechanism meshes the first and second pinion gears with their respective shaft centers spaced apart from each other by a predetermined distance in the inclination direction of the first and second pinion holders. . The planetary gear assembly apparatus according to claim 1 or 2,
The inclination angle of the first and second pinion holders is such that at least one of the first and second pinion gears moves after the at least one of the first and second pinion gears moves obliquely upward and meshes with each other. A planetary gear assembling apparatus, wherein the planetary gear assembly apparatus is set so as to move obliquely downward by its own weight and contact the first or second pinion holder. In the planetary gear assembly device according to any one of claims 1 to 3,
A first gear housing portion that houses a plurality of the first pinion gears such that the axial center thereof extends horizontally;
A plurality of the second pinion gears are accommodated so that the axis extends horizontally while being arranged to be parallel to the first gear accommodating part and to face the first gear accommodating part via the carrier support part. And a second gear housing part
The pinion gear assembly mechanism is
A movable member that is movable toward and away from the carrier support portion and rotatable about an axis extending in parallel with the axis of the first and second pinion gears accommodated in the first or second gear accommodating portion; ,
A positioning member capable of positioning the moving member in an upright state and an inclined state;
A first arm member having a proximal end portion rotatably supported by the moving member;
A second arm member having a base end portion rotatably supported by the moving member,
The first pinion holder has a bottom portion and a back portion that can support the outer periphery of the first pinion gear, and a side portion that can support an end surface of the first pinion gear, respectively, and the base member is inclined and the first pinion holder is in the inclined state. When the arm member is in the standby position, the bottom portion faces the first gear housing portion with the back portion inclined and the side portion is located on the second gear housing portion side. Fixed to the free end of one arm member,
The second pinion holder has a bottom portion and a back portion capable of supporting the outer periphery of the second pinion gear, and a side portion capable of supporting an end surface of the second pinion gear, respectively, and the base member is in an inclined state so that the second pinion holder is inclined. When the arm member is in the standby position, the bottom portion faces the second gear housing portion while being inclined with the back portion down, and the side portion is located on the first gear housing portion side. A planetary gear assembly apparatus, wherein the planetary gear assembly apparatus is fixed to a free end portion of a two-arm member. The planetary gear assembly apparatus according to claim 4, wherein
The pinion gear assembly mechanism includes a horizontal guide surface that guides a cam follower provided in the moving member in a horizontal direction, and is formed on a side opposite to the carrier support portion side of the horizontal guide surface. A planetary gear assembling apparatus comprising a guide member having an inclined guide surface for guiding the cam follower obliquely downward when being separated from the carrier support portion. The planetary gear assembly apparatus according to claim 4 or 5,
The planetary gear assembly apparatus, wherein the pinion gear assembly mechanism includes a push-in mechanism that pushes the first and second pinion gears from the first and second pinion holders into the planetary carrier on the carrier support portion. In the planetary gear assembly device according to any one of claims 4 to 6,
The first and second gear accommodating portions are inclined so that the end portion on the first or second pinion holder side is downward, and when the first and second arm members reach the standby position. A gear feed mechanism that allows the first or second pinion gear located on the lowermost side to drop to the first or second pinion holder;
The planetary gear assembly apparatus, wherein the carrier support part includes a rotation mechanism that rotates the planetary carrier by a predetermined angle. In the planetary gear assembly device according to any one of claims 4 to 7,
A plurality of needles constituting a needle bearing and a dummy shaft are inserted into the center holes of the first and second pinion gears housed in the first or second gear housing part,
The side portions of the first and second pinion holders have the plurality of needles from the first or second pinion gear when the first and second pinion gears are disposed on the planetary carrier on the carrier support portion. A planetary gear assembling apparatus, wherein a support plate for preventing the dummy shaft from falling is fixed. In the planetary gear assembly device according to any one of claims 1 to 8,
The planetary gear assembling apparatus, wherein the first and second pinion gears are arranged on the planetary carrier in a state in which double washers are arranged on the upper end surfaces of the first and second pinion gears. In the planetary gear assembly device according to any one of claims 1 to 9,
A planetary gear characterized by further comprising a pinion shaft insertion mechanism for inserting a first pinion shaft into the planetary carrier and the first pinion gear and inserting a second pinion shaft into the planetary carrier and the second pinion gear. Assembly equipment. In the assembling method of the planetary gear assembled to the planetary carrier supported so that the first pinion gear and the second pinion gear mesh with each other and the shaft center extends vertically,
Supporting the first pinion gear with a first pinion holder and supporting the second pinion gear with a second pinion holder;
The first and second pinion gears are moved closer to each other with the first and second pinion holders tilted so as to allow the first and second pinion gears to move obliquely upward substantially perpendicular to the axis. Meshing with each other in a state where the respective axes are inclined from the vertical direction;
Disposing the first and second pinion gears meshed with each other on the planetary carrier in a state where the respective shaft centers extend vertically;
Assembling method of planetary gear including

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