JP2019108967A - Method and device for moving tapered roller - Google Patents

Abstract

To provide a method for moving a tapered roller which can surely moving the tapered roller even when a movement distance is short and a difference in height is small.SOLUTION: A rolling path 6 is prepared which extends in a movement direction of a tapered roller W and supports the vicinity of both ends Bs of the tapered roller in a lower side. One end side in a width direction of the rolling path is adjusted to be lower than the other end side so that a large bottom surface Bb side of an axis Ca in the tapered roller is lower than a small bottom surface Bs side when the axis Ca of the rolling path is orthogonal to the movement direction and the rolling path supports the tapered roller. When the tapered roller placed on the rolling path in such a manner that the large bottom surface is positioned in the lower one end is moved in the rolling path with the usage of a difference in height, a fitting part 111 provided along the rolling path is fitted with the large bottom surface to prevent the tapered roller from continuously starting to slip off while rotating, and simultaneously, an unstable attitude of the tapered roller in movement is corrected by the fitting part.SELECTED DRAWING: Figure 10

Description

  The present invention relates to a method and apparatus for moving a tapered roller from a specific location to another location.

The tapered rollers are used for tapered roller bearings with less energy loss. The smaller the surface roughness, the smaller the energy loss and the longer the service life of the tapered roller. Therefore, it is preferable that the tapered roller be super-finished or the like after being formed into the shape of a truncated cone (Patent Document 1).
By the way, since the tapered roller has a unique shape (conical cone) different from the cylinder and the sphere, for example, by simply rotating the inclined transportation path around an axis, it is possible to reach a target location, for example, a processing position in a polishing apparatus I can not move it.

  Therefore, movement of the tapered roller without using power is performed with its axis aligned with the movement direction. For example, in the technique related to the assembly of the tapered roller bearing disclosed in Patent Document 2, the tapered roller moves from the top toward the lower bearing assembly device in a tube having a circular cross section extending in the vertical direction. Further, in the technology relating to the assembly of the tapered roller bearing disclosed in Patent Document 3, the tapered roller is supplied to the assembly place by dropping the inside of the guide hole from the small bottom surface side.

JP, 2017-094415, A JP 2013-249891 A JP 2008-223976 A

In the conventional method (in which the tapered roller is moved in the axial direction) in which the conveying path is inclined (with respect to the moving direction) and the tapered roller is moved in the axial direction, the conveying path tends to be long In order to move (slide) reliably and reliably, the slope of the carriage must be increased, which restricts the design of the entire device including the carriage.
The present invention has been made in view of the above problems, and a tapered roller moving method capable of reliably moving a tapered roller even if the moving distance is short (the moving source and the moving destination) and the height difference is small. An object of the present invention is to provide a tapered roller moving device.

The tapered roller moving method according to the present invention rotates and moves the tapered roller using the difference in height between the moving source and the moving destination. In the tapered roller moving method, a rolling path is provided for supporting the vicinity of both ends of the tapered roller extending in the moving direction of the tapered roller.
The rolling path is one in the width direction (in the rolling path) so that the large bottom side of the axial center in the tapered roller is lower than the small bottom side when the tapered roller is supported with its axial center orthogonal to the moving direction. Is adjusted to be lower than the other end. And this tapered roller movement method rotates, when the tapered roller placed on the passage so that the large bottom surface is located on the lower end side moves the passage using the height difference. The locking portion provided along the path locks the large bottom surface to prevent the constant slippage, and at the same time corrects the unstable posture of the tapered roller at the time of movement by the locking portion.

Here, the “width direction” is a direction orthogonal to the direction in which the tapered roller moves, and is a direction orthogonal to the extending direction of the roller, that is, a so-called “width direction”.
The transfer path is preferably two separate and distinct members.
In another tapered roller moving method according to the present invention, rolling paths are provided to separately support the vicinity of both ends of the tapered roller which extends in the moving direction of the tapered roller. One end side in the width direction in the rolling path is at a lower position than the other end side. In addition to this, with the small bottom on one side and the large bottom on the other side, the large bottom of the axial center of the tapered roller is lower than the small bottom when the tapered roller is placed on the track. So that the entire path of rotation is in the axial direction.

Also in this tapered roller moving method, when the tapered roller moves along the rolling path using the height difference, the large bottom face is designed to be continuously slipped while rotating by the locking portion provided along the rolling path. It is prevented by being locked, and at the same time, the unstable position of the tapered roller at the time of movement is corrected by the locking portion.
The tapered roller moving device according to the present invention is provided with a rolling path which supports the vicinity of both ends of the tapered roller and serves as a path of movement of the tapered roller. The rolling path is a first rolling path supporting the large bottom side of the tapered roller below, a second rolling path supporting the small bottom side of the tapered roller below, and a second rolling path in the vertical direction. It has a height difference forming means for lowering the first turning path.

In the tapered roller moving device, when the tapered roller rotates on the turning road due to the height difference between the moving source and the moving destination in the turning path, the large bottom is locked and the tapered roller moves to the large bottom side in the axial center direction A lock is provided along the first turn to prevent jamming.
The height difference forming means has a function to vertically move the first rolling path, a function to tilt the rolling path and the locking portion integrally in the axial direction of the tapered roller, or any of these. It also has a function.

  According to the present invention, it is possible to provide the tapered roller moving method and the tapered roller moving device capable of moving the tapered roller reliably even if the moving distance is short and the height difference between the moving source and the moving destination is small.

FIG. 1 is a front view of a tapered roller moving device. FIG. 2 is a plan view of the tapered roller moving device. FIG. 3 is a left side view of the tapered roller moving device. FIG. 4 is a right side view of the tapered roller moving device. FIG. 5 is a front sectional view of the moving direction inclined portion. FIG. 6 is a diagram for explaining the adjustment of the path width. FIG. 7 is a view for explaining the up and down mechanism of the right turn. FIG. 8 is a view for explaining the adjustment of the inclination of the entire carrying path portion. FIG. 9 is a diagram for explaining the adjustment of the inclination of the moving direction inclined portion. FIG. 10 is a view for explaining a tapered roller for moving the tapered roller moving device. FIG. 11 is a view for explaining the movement of the tapered roller only by the height difference between the left turn and the right turn. FIG. 12 shows another embodiment of the left turn and the right turn. FIG. 13 is a view showing an embodiment in which the left turn and the right turn are integrated.

1 is a front view of tapered roller moving device 1, FIG. 2 is a plan view of tapered roller moving device 1, FIG. 3 is a left side view of tapered roller moving device 1, FIG. 4 is a right side view of tapered roller moving device 1. FIG. 5 is a front sectional view of the moving direction inclined portion 3. The cross section in FIG. 5 is a portion shown by the arrow AA in FIG.
The tapered roller moving device 1 comprises an entire base 2 and a moving direction inclined portion 3.

The entire base portion 2 is positioned below the moving direction inclined portion 3 and swingably supports the moving direction inclined portion 3. The entire base 2 includes a lower support 11 and an upper support 12.
In the lower support portion 11, a plate-like upper support plate 13 and a lower support plate 14 are stacked in this order from the top, and a pair of sandwiching plates 15, 15 having a space between them are made orthogonal to the upper surface of the upper support plate 13. It is a structure integrated into these. The upper support plate 13 can be moved in one direction (left and right direction in FIG. 1) with respect to the lower support plate 14.

The upper support portion 12 is composed of a support plate 16, a rail support plate 17, a longitudinal movement plate 18, an inclined portion support plate 19 and an inclination adjustment portion 20.
The pinched plate 16 is a plate having a thickness, and is sandwiched between the pair of pinching plates 15 and 15 in the lower support portion 11 and integrated with the lower support portion 11. The support plate 16 can move up and down with respect to the lower support portion 11.

The rail support plate 17 has a plate shape, and is fixed to the upper end surface of the plate 16 so as to be orthogonal to the plate 16. A rail 21 extending in a direction perpendicular to the movable direction of the upper support plate 13 is attached to the upper surface of the support plate 16.
The direction in which the rails 21 extend, that is, the left and right direction in FIGS. 3 and 4 is the moving direction of the tapered rollers. Hereinafter, this direction is sometimes referred to as "longitudinal direction", and a direction orthogonal to this direction and perpendicular to the vertical direction may be referred to as "width direction".

The front-rear moving plate 18 is plate-shaped and overlaps the rail support plate 17. The front and rear moving plate 18 is provided at its lower surface with a groove in which the rail 21 is fitted, and is movable in the front and rear direction along the rail 21 while being integrated with the rail support plate 17.
The inclined portion support plate 19 is a plate having a thickness, and the lower end face thereof is fixed to the front and rear moving plate 18 in a state of expanding in the front and rear direction and the vertical direction. A penetrating circular hole 22 having a circular cross section is provided in the upper portion of the inclined portion support plate 19.

The inclination adjusting unit 20 is configured of an adjusting bolt holding unit 23 and an adjusting bolt 24.
The adjustment bolt holding portion 23 is a plate material slightly thinner than the inclined portion support plate 19 and formed in an “L” shape. The adjustment bolt holding portion 23 is fixed to the side surface of the inclined portion support plate 19 with the L-shaped orthogonal angle on the upper side and the inclined portion support plate 19 side. The side surface of the inclined portion support plate 19 to which the adjustment bolt holding portion 23 is fixed is a surface facing the moving source side (start point of movement) of the tapered roller in the front-rear direction.

A bolt hole 25 penetrating in the vertical direction is provided in a portion of the adjustment bolt holding portion 23 that protrudes to the movement source side. Below the lower opening of the bolt hole 25, a hexagonal nut 26 is fixed. The adjusting bolt 24 is screwed with the hexagonal nut 26 with its male screw portion projecting from the bolt hole 25 with its head down.
Referring to FIG. 5, the moving direction inclining portion 3 is configured of the carrier base 4 and the width direction inclining portion 5.

The carriage base 4 includes a substrate 31, a lower arm 32 and a pair of upper arms 33 and 33.
The substrate 31 is formed of a rectangular plate material.
The lower arm portion 32 is formed of a bifurcated arm 34 and a locking plate 35.
The bifurcated arm 34 has a “U” shape in a front view (FIG. 5), and is fixed to the lower surface of the substrate 31 by spreading a pair of parallel plate-like parts apart from each other downward. The pair of plate-like portions of the bifurcated arm 34 are provided with holes 36 and 36 having a circular cross section having a substantially horizontal axis in common.

  The locking plate 35 has a plate shape and is fixed to the outer surface of one of the pair of plate-like portions of the bifurcated arm 34 (left side in FIG. 5). The locking plate 35 extends further downward than the bifurcated arm 34 and to one side in the front-rear direction (right side in FIG. 4). The locking plate 35 does not overlap the bifurcated arm 34 in the width direction, and has a circular arc-shaped locking hole 37 having a cross section centered on the center of the hole 36 at substantially the same position as the hole 36 in the vertical direction. Prepare.

The upper arms 33, 33 are formed of a plate material and fixed to the upper surface of the substrate 31 so as to be separated from each other in parallel and project upward. Further, (the plate members of) the upper arms 33, 33 extend in a direction orthogonal to the locking plate 35 (and the plate members of the bifurcated arm) (including a plane including the surface of the upper arm 33 and a surface of the locking plate Orthogonal to the plane).
In the vicinity of the upper end of the upper arms 33, 33, support holes 38, 38 having a circular cross-section having a common axial center extending in the alignment direction of the upper arms 33, 33 are provided.

The width direction inclined portion 5 is formed by the carry passage portion 6 and the carry passage inclination means 7.
The transfer path unit 6 has a transfer path main body 41 and width changing means 42.
The transfer path main body 41 is composed of a left turn section 43 and a right turn section 44. Here, “left” refers to the left in FIGS. 1 and 5, and “right” refers to the opposite side of “left”.
The left roller 43 is composed of the left base 45 and the side arms 46.

The left base 45 has a substantially horizontal rectangular plate-like table 47 whose longitudinal direction is the front and rear direction, a plate-like left side wall 48 extending perpendicularly to one long side thereof, and a left side wall 48 It has a fixed left turn 49.
Rails 84, 84 (in linear guides) are mounted parallel to the ends of the table 47 near the respective longitudinal ends (FIG. 2). The rail 84 is an element of the width changing means 42.

The left side wall 48 extends on both sides longer than the longitudinal direction (front-rear direction) of the table 47. The left side wall 48 extends in a strip shape parallel to the table 47 in the middle to protrude upward, and protrudes inward (from the surface of the right roller passage 44) from the surface of the table 47 (plate-like) Equipped with
The left turn 49 is a long member having an “L” -shaped cross section, and one outer surface (one of the two surfaces forming an obtuse angle other than the end surface) is a vertical surface of the left wall 48 and the other outer surface is It is integrated with the left base 45 in contact with the upper surface of the left turn support portion 52. As the left turn passage 49, a material having self-lubricity, for example, a resin such as polyoxymethylene (polyacetal) or polytetrafluoroethylene (PTFE), or a composite material is used.

  The side arm portion 46 is formed of a plate material in a plan view (FIG. 2) in a "U" shape, and is fixed to the outer surface of the left base 45 so that parallel projecting portions are horizontally aligned. In the "U" -shaped parallel projecting portions of the side arm portions 46, rocking shaft holes 53, 53 having a circular cross-section having a common axis are provided. The side arm portion 46 penetrates the rocking shaft holes 53, 53 and can be rocked by the rocking shaft 54 supported by the support holes 38, 38 of the upper arms 33, 33. 33, 33) are linked.

The right turn section 44 comprises a right base 56, a right side wall 57, a right turn 58 and a right turn up and down means 59. The right-turning section 44 is located to the right of the left-turning section 43 as a whole in a front view (FIGS. 1 and 5).
The right base portion 56 includes a substantially horizontal rectangular plate-like base 61 and a plate-like right support wall 62 extending perpendicularly (protrusively) from the end of one long side of the base 61.

The right base portion 56 has a longitudinal length substantially equal to the longitudinal length of the table 47 and a width smaller than the width of the table 47.
The position of the upper end face of the right support wall 62 is substantially the same as that of the left side wall 48.
In the right base 56, the outer surface of the right support wall 62 (surface forming an obtuse angle with one surface of the base 61) faces away from the left wall 48 and faces the left wall 48, and the right support wall 62 is parallel to the left wall 48. Are arranged to be In the right base portion 56, the base 61 is parallel to the table 47, and the base 61 overlaps the part of the table 47 at an interval in the vertical direction. The right support wall 62 is provided with holding holes 63, 63, 63 having an oval cross section near both ends in the longitudinal direction and at the center.

The right side wall 57 is a plate-like material elongated in a strip shape, and one surface of the right side wall 57 contacts the outer surface of the right support wall 62. The right side wall 57 has substantially the same length as the left side wall 48 in the front-rear direction. The right side wall 57 includes, on a surface facing the left roller passage 43 side, a right roller passage support 64 that extends in a strip shape in a substantially longitudinal direction and protrudes.
The right-turn passage 58 has an “L” shape whose cross-sectional shape is plane-symmetrical to the cross-sectional shape of the left-turn passage 49. The right turn 58 is integrated with the right side wall 57 such that one outer surface is in contact with the vertical surface of the right side wall 57 opposite to the left side wall 48 and the other outer surface is in contact with the upper surface of the right turn support 64. . The right turn 58 is formed of a material having the same self-lubricity as the left turn 49.

  The right side wall 57 is provided with a female screw at a position overlapping the three holding holes 63, 63, 63 in the right support wall 62. The right side wall 57 is integrated with the right base 56 by hexagonal socket bolts 65, 65, 65 passing through the holding holes 63, 63, 63 and screwed to the female screws. The relative positions of the right base 56 and the right side wall 57 in the vertical direction can be changed by loosening the hexagonal socket bolts 65, 65, 65.

The right rolling path raising and lowering means 59 is composed of a leg stopper 71 and an adjuster bolt 72.
The leg stopper 71 projects from the upper end surface of the right base 56 near the center of gravity in the longitudinal direction of the right wall 57 and the right turn 58 together, toward the left wall 48 so as to cover the right wall 57.
In a portion covering the right side wall 57 in the leg stopper portion 71, a bolt groove 73 having a semicircular cross section and whose generatrix is orthogonal to the upper surface of the right side wall 57 is provided.

The adjuster bolt 72 is fitted into the bolt groove 73, and the male screw portion thereof is screwed into a female screw which is open at the upper surface of the right side wall 57.
The right rotation vertical means 59 rotates the adjuster bolt 72 while the hexagonal socket bolts 65, 65 and 65 are loosened, whereby the right wall 57 integrated with the right wall 57 with respect to the right base 56 is rotated right. Move the road 58 up and down.

The width changing means 42 is formed by two linear guides 81, 81, a linear guide clamper 82, a ball screw 83 and the like.
The linear guide 81 comprises a rail 84 and a block 85 moving across the rail 84 in the direction in which the rail 84 extends.
The rails 84, 84 are attached to the upper surfaces near the longitudinal ends of the table 47 in parallel with the ends, respectively. The blocks 85, 85 are both fixed to the lower surface of the base 61 of the right base 56 (at the right turn 44). That is, the right roller passage 44 is integrated with the table 47 (left base 45) so as to be movable in the width direction via the two linear guides 81, 81.

  The linear guide clamper 82 is movably attached to one of the two rails 84, 84 side by side with the block 85, and the upper surface thereof is fixed to the lower surface of the base 61. When the linear guide clamper 82 makes the lever 74 one side, its movement along the rail 84 becomes difficult, and as a result, the two blocks 85, 85 can not travel and the movement of the right turn section 44 in the width direction is blocked Be done.

  The ball screw 83 is disposed between the table 47 and the base 61 so that the axial center of the screw shaft 89 is parallel to the rails 84 at a substantially intermediate position between the two linear guides 81 and 81. In the ball screw 83, a fixing support 86 through which a screw shaft 89 passes is fixed to the table 47 of the left ball rolling portion 43, and a nut portion 87 is fixed to (the lower surface of) the base 61 of the right ball rolling portion 44. A width change handle 88 for rotating the screw shaft 89 is attached to an end of the screw shaft 89 that protrudes from the fixing support 86.

In the width changing means 42 configured as described above, when the handle is rotated, the base 61 reciprocates in the width direction with respect to the table 47, and the distance between the left ball rolling portion 43 and the right ball rolling portion 44 is It can be changed arbitrarily.
As the linear guide 81, the linear guide clamper 82, the ball screw 83 and the like constituting the width changing means 42, known ones are used.

In the present invention, the "turning path" means the carriage portion 6 alone or to which the carriage inclination means 7 is added.
The transportation path inclination means 7 is a means for adjusting the inclination with respect to the horizontal in the width direction of the transportation path in which the tapered roller moves. The carriage inclination means 7 comprises a stationary plate 91, a lower connection plate 92, an upper connection plate 93, a combination of linear bush 94 with clamp lever and linear shaft 95, ball screw 96 and a pair of ball bearings 97, 97, etc. . In a broad sense, the upper arms 33, 33 and the swinging shaft 54 are also included in the carriage inclination means 7.

The “carrying path” refers to a portion of the tapered roller moving device 1 in which the tapered rollers move in contact.
The stationary plate 91 is formed of a strip-shaped plate material. The stationary plate 91 has its longitudinal direction aligned with the longitudinal direction by two rod-like support members 98, and the vicinity of one long side of the stationary plate 91 is fixed to the lower surface of the base 31 of the carriage base 4 (see FIG. reference). The stationary plate 91 is substantially parallel to the substrate 31. The stationary plate 91 has a hole penetrating in the vicinity of both ends in the longitudinal direction, and a flange type linear bush 94 with clamp lever (hereinafter referred to as "bush 94") is inserted into the hole with the flange portion exposed upward.

A linear shaft 95 (hereinafter referred to as a “shaft 95”) passes through the bush 94 (in the vertical direction). The screw shaft 99 of the ball screw 96 passes through near the longitudinal center of the stationary plate 91, and the screw shaft 99 is screwed into a nut portion 101 fixed to the upper surface of the stationary plate 91.
The lower connecting plate 92 is formed of a strip-shaped plate whose width is narrower than the stationary plate 91, and is located below the stationary plate 91. The lower connecting plate 92 is disposed parallel to the stationary plate 91 with its longitudinal direction aligned with the longitudinal direction of the stationary plate 91. The lower connecting plate 92 secures (the lower end of) the shafts 95, 95 near both longitudinal ends thereof. The lower connecting plate 92 has a screw shaft 99 penetrating near its longitudinal center, and has a fixing support 102 for the screw shaft 99 on its lower surface. The lower end of the screw shaft 99 passing through the fixing support 102 is fixed to the tilt adjustment handle 106.

  The upper connecting plate 93 is formed of a strip-shaped plate whose width is narrower than the lower connecting plate 92, and is located above the stationary plate 91. The upper connecting plate 93 is disposed parallel to the stationary plate 91 with its longitudinal direction aligned with the longitudinal direction of the stationary plate 91. The upper ends of the shafts 95, 95 are fixed to the lower surface of the upper connecting plate 93 in the vicinity of both ends in the longitudinal direction. The upper connecting plate 93 is provided with plates 103 and 103 at both upper ends thereof.

  The ball bearings (hereinafter referred to as "bearings") 97, 97 have their rotational axes aligned with the longitudinal direction (the movement direction of the tapered rollers, which is also the longitudinal direction of the upper connecting plate 93). Is integrated rotatably. "To the outside of the plates 103, 103" means that the bearing 97, the plate 103, the plate 103, and the bearing 97 are arranged in order in the front-rear direction.

The upper arms 33, 33 swingably support one side in the width direction of the widthwise inclined portion 5, and the bearings 97, 97 abut the lower surface of the table 47 so that the widthwise inclined portion 5 is not excessively inclined. The other of the width direction of the widthwise inclined portion 5 is supported from below.
The moving direction inclined portion 3 is held on the entire base 2 by a connecting shaft 104 which penetrates the inclined portion support plate 19 of the entire base 2 and whose both ends are held in the holes 36 and 36 of the bifurcated arm 34 of the carry base 4. Ru. The moving direction inclining portion 3 can be inclined in the front-rear direction about the connecting shaft 104 with respect to the entire base 2 and is set by the fixing function of the clamp 105 which protrudes from the bifurcated arm 34 and penetrates the locking hole 37. Slope is maintained. The clamp 105 is a known one in which an internal thread of the handle is screwed to an external thread protruding from the locking hole 37 and fixed by tightening the screw.

The above-described tapered roller moving device 1 can smoothly rotate and move a plurality of types of tapered rollers having different sizes by setting the moving source high and lowering the moving destination.
Next, adjustment of the tapered roller moving device 1 for moving plural types of tapered rollers smoothly will be described.
“Adjustment of the tapered roller moving device 1” means adjustment between the left turn 43 and the right turn 44 of the carriage 6 (referred to as “turn width”), left turn of the left turn 43 Adjustment of difference in height of right rotation passage 58 of passage 49 and right rotation passage 44, adjustment of inclination of entire carriage passage 6, and inclination of movement direction inclined region 3 (difference in elevation between tapered roller movement source and movement destination) Adjustment of

6 is a diagram for explaining the adjustment of the rolling path width, FIG. 7 is a diagram for explaining the up-and-down mechanism of the right rolling path 58, FIG. 8 is a diagram for explaining the adjustment of the inclination of the entire carriage 6 and FIG. It is a figure explaining adjustment of the inclination of inclination part 3. FIG.
Referring to FIG. 6, first, the path width is adjusted in accordance with the length of the tapered roller to be moved. Specifically, the tapered roller moves while rolling while being held by the left turn 49 and the right turn 58. Thus, “turn width” is the distance between the opposite vertical surfaces of the left turn 49 and the right turn 58, respectively.

The adjustment of the rolling path width utilizes the functions of the width changing means 42, that is, the two linear guides 81, 81, the linear guide clamper 82, the ball screw 83 and the like. At first, the lever 74 is operated to release the (mechanical) adherence of the linear guide clamper 82 to the rail 84.
Next, the width change handle 88 integrated with the screw shaft 89 of the ball screw 83 is turned. By this operation, the nut portion 87 moves along the screw shaft 89 (in the width direction). Along with this, the right turn section 44 (right turn section 58) integrated with the nut section 87 also moves in the width direction, so when the distance between the left turn section 49 and the right turn section 58 becomes appropriate, the width The rotation of the change handle 88 is stopped. Finally, the lever 74 is operated to secure the linear guide clamper 82 to the rail 84. Since the linear guide clamper 82 is integrated with the right roller passage portion 44, the linear guide clamper 82 is fixed to the rail 84, whereby the passage width is fixed. By the above process, the path width of the tapered roller moving device 1 is changed from D1 (FIG. 6 (a)) to D2 (FIG. 6 (b)).

The adjusted passage width D2 of the tapered roller moving device 1 is changed by the height H of the tapered roller W to be moved.
When the circuit width is adjusted, next, adjustment of the height difference between the left circuit 49 of the left roller section 43 and the right circuit 58 of the right circuit section 44 is performed. Referring to FIG. 7, the adjustment of the height difference is started by loosening the three hexagonal socket bolts 65 of the right turn section 44. When the hexagonal socket bolt 65 is loosened, the right rotary path 58 integrated with the right side wall 57 can move up and down within a range in which the threaded portion of the hexagonal socket bolt 65 can move up and down in the holding hole 63. Therefore, the adjuster bolt 72 of the right rotation path raising / lowering means 59 is turned in the loosening direction, and the right rotation path 58 is moved downward from the same height as that of the left rotation path 49 (FIG. 7A) (FIG. 7 (b )).

The reason for making the right turn 58 lower than the left turn 49 is to move the tapered roller with the large bottom surface Bb of the tapered roller W on the right turn 58 side. When the small bottom surface Bs of the tapered roller W is moved as the right turn 58 side, the right turn 58 is made higher than the left turn 49.
The height difference Dh between the left turn 49 and the right turn 58 differs depending on the shape and size of the tapered roller W to be moved. Qualitatively, when both ends of the tapered roller W to be moved are supported by the left turn 49 and the right turn 58, the axis Ca of the tapered roller W is lower on the large bottom surface Bb side than horizontal or horizontal Preferably, the height difference Dh is adjusted.

When the height difference Dh between the left turn 49 and the right turn 58 is properly adjusted, the hexagonal socket bolt 65 is tightened and the right side wall 57 is fixed to the right support wall 62.
Next, the adjustment of the inclination of the entire transport passage 6 is performed. Referring to FIG. 8, first, the clamps of the bushes 94, 94 on both sides in the front-rear direction in the carriage inclination means 7 are released. The tilt adjustment handle 106 connected to the ball screw 96 is turned to the left, and the screw shaft 99 moves downward with respect to the nut portion 101. Since the screw shaft 99 moves integrally with the lower connecting plate 92, the shafts 95, 95 whose lower ends are fixed to the lower connecting plate 92 also descend in the bushes 94, 94 whose position does not change. As a result, the upper connecting plate 93 fixed to the upper ends of the shafts 95 and the two bearings 97 integrated with the upper connecting plate 93 are also lowered (FIG. 8 (c)).

  Since one end in the width direction of the transfer path portion 6 is swingably connected to the transfer path base 4 by the swing shaft 54, when the bearings 97, 97 are lowered (Dm), the transfer path supported by this The other side in the width direction of the road portion 6 also descends (FIG. 8 (d)). By the descent on the other side in the width direction in the carrying passage portion 6, the entire carrying passage portion 6 is inclined in the width direction such that the large bottom surface Bb side of the tapered roller W to be moved is lowered.

When the entire carriage 6 is inclined in the width direction as intended, the clamps of the bushes 94, 94 are operated (tightened) to fix the inclination not to change.
The inclination in the width direction of the entire conveyance passage 6 is adjusted so that the axial center Ca of the tapered roller W is inclined toward the right rotation passage 58 relative to the horizontal when the tapered roller W to be moved is placed on the conveyance passage. Ru. It is preferable that the bus bar Cg at the top of the circumferential surface of the tapered roller W be adjusted so as to be inclined to the right rotation path 58 side than horizontal or horizontal.

When the adjustment of the inclination of the entire carrying passage 6 is completed, the adjustment of the inclination of the moving direction inclining portion 3 is performed next. The inclination of the moving direction inclined portion 3 is performed to rotationally move the tapered roller from the moving source to the moving destination under its own weight. The inclination of the moving direction inclined portion 3 is performed by operating the inclination adjusting portion 20.
9, the inclination of the moving direction inclining portion 3 releases the fixing function of the clamp 105, and the moving direction inclining portion 3 supported by the inclined portion supporting plate 19 (the entire base 2) via the connecting shaft 104. It is started by making it rockable.

By the way, the moving direction inclined portion 3 has its tilting center, that is, the center of the (bifurcated arm) hole 36 (substantially coincides with the axial center of the connecting shaft 104), but with no inclination. Also, the destination side of the tapered roller than the vertical line VL including the center of gravity Gf when the tapered roller does not move (FIG. 9
Located on the left side of (a)). Therefore, when the fixing function of the clamp 105 is released, the degree of inclination of the moving direction inclining portion 3 is determined by the degree of projection of the adjusting bolt 24 from the adjusting bolt holding portion 23 in the inclination adjusting portion 20, that is, rotation of the adjusting bolt 24. Can be adjusted.

FIG. 9B is a view in which the adjusting bolt 24 is rotated to the right to increase the degree of protrusion, and the moving destination of the tapered roller in the moving direction inclined portion 3 is lower than the moving source. After the degree of inclination of the moving direction inclining portion 3 is determined, the inclination of the moving direction inclining portion 3 is fixed by the clamp 105.
The above is the adjustment procedure of the tapered roller moving device 1 for smoothly moving a plurality of types of tapered rollers having different sizes. The tapered roller moving device 1 can naturally move cylindrical rollers (cylindrical rollers) only by adjusting the rolling path width and adjusting the inclination of the moving direction inclined portion 3.

FIG. 10 is a view for explaining the tapered roller W which moves the tapered roller moving device 1. In FIG. 10, (a) and (c) are views of the transfer passage viewed from a direction orthogonal to the axial center Ca of the upper tapered roller W, and (b) and (d) are views of the transfer passage viewed from the front ( (A) and (b) are the figures immediately after the tapered roller W is placed on the carrying path.
With reference to FIG. 10, when the tapered roller W is placed on the transfer path of the adjusted tapered roller moving device 1 ((a), (b)), the tapered roller W moves due to the inclination of the moving direction inclined portion 3. Rotate toward the end. Here, assuming that the tapered roller W simply moves by approximately 1⁄4 rotation without slip etc., the tapered roller W is as shown in W ′, (c) (d) of FIG. become. The axial center Ca of the tapered roller W is inclined with respect to the width direction (vertical direction in FIG. 7C), and the large bottom surface Bb contacts the upright inner surface 111 of the right turn 58 at point F.

  The tapered roller W is inclined so that the large bottom surface Bb side is down ((d)). Therefore, a part of the weight Wg of the tapered roller W acts on the point F from the center of gravity Gw of the tapered roller W as the component force Wd ((d)). The center of gravity Gw of the tapered roller W exists at any one of the axis centers Ca, and the center of gravity Gw is located on the moving destination side of the point F at about a quarter rotation. In this positional relationship between the center of gravity Gw and the point F, it can be said that the tapered roller W has an unstable posture.

The component force Wd described above is decomposed into the force We directed in the width direction. Therefore, for the tapered roller W, the force is We, the point of force F is the fulcrum (rotation axis), the center of gravity Gw is the force point, and the moment of the force whose distance L between the point F and the center of gravity Gw in the longitudinal direction is the arm length That is, a force acts to rotate the tapered roller W around F.
For the above reasons, even if tapered roller W moves simply by approximately 1⁄4 rotation without sliding etc. (FIG. 10 (c)), axial center Ca of tapered roller W conforms to the width direction by its own weight You can go back to the posture you want and continue the rotation.

The recovery of the posture of the tapered roller W is, for example, as shown in FIG. 10 (d) so that the large bottom surface Bb side is down when the center of the axis Ca is horizontal in front view with the posture of (c). When (d) is inclined, when the specific inclination is reached, the attitude of the tapered roller W changes so that the axial center Ca coincides with the width direction (the same as the tapered roller W in (a)).
A moment of force acts on the tapered roller W as soon as its axial center Ca inclines in the width direction, with the distance L being the length of the arm. Therefore, the tapered roller W is a tapered roller moving device while the large bottom surface Bb apparently contacts the upright inner surface 111 of the right turn 58 without inclining the axial center Ca largely in the width direction. Move the 1 port.

  Even when the tapered roller W is small and the right turn 58 is higher than the center of the large bottom surface Bb, the point of action F 'of the component force Wd is from the upper surface of the right turn 58 to approximately the radius of the large bottom Bb. It does not go high, and it gets further away from the axial center Ca in the front and back direction (the left and right direction of (c)). That is, the same right turn 58 (the upstanding inner surface 111) can be made to correspond to the tapered rollers whose diameters of the large bottom surface Bb are different without being replaced. The tapered roller moving device 1 can move a plurality of types of tapered rollers W of different sizes by a combination of a pair of left turn 49 and right turn 58.

FIG. 11 is a view for explaining the movement of the tapered roller W only by the difference in height between the left turn 49 and the right turn 58 without inclining the transfer passage 6. In FIG. 11, (a) is a view of the transfer path viewed from above and in a direction orthogonal to the axial center Ca of the tapered roller W, and (b) is a view from the front of the transfer path.
Even in the case where only the height difference is provided on the left turn 49 and the right turn 58 without inclining the passage portion 6, the tapered roller W exerts a force Wd which moves toward the right turn 58 and moves. . The force Wd acts on a point F in contact with the right turn 58. Point F is a point at which the tapered roller W tries to move in the width direction (right direction in the figure) due to the difference in height between the left turn 49 and the right turn 58. The point F is located to the left of the center of gravity Gw in the front-rear direction. The component force We in the width direction at the weight Wg of the tapered roller W is a force with the center of gravity Gw as the point of force, the point F as the fulcrum (rotation axis), and the distance L between the point F and the center of gravity Gw in the longitudinal direction as the arm length. Give a moment.

From the above, even when the carry passage portion 6 is not inclined, the tapered roller W can maintain the posture in which the rotation can be continued. As a result, the tapered roller moving device 1 can smoothly move the carriage inclined in the moving direction (front-rear direction) only by the weight of the tapered roller W.
The height difference Dh between the left turn 49 and the right turn 58 causes the axis Ca of the tapered roller W to be inclined to the right turn 58 rather than the horizontal when the tapered roller W to be moved is placed on the carriage. To be adjusted. It is preferable that the bus bar Cg at the top of the circumferential surface of the tapered roller W be adjusted so as to be inclined to the right rotation path 58 side than horizontal or horizontal.

In the tapered roller moving device 1, when moving the tapered roller W without inclining the transfer passage 6, the lowermost bus line Cu of the tapered roller W and the upper surface of the right rotation passage 58 in front view (FIG. 11B) It should be noted that the movement of the tapered roller W will be impaired if the angle θ made by the tip is large.
The tapered roller moving device 1 rotates the tapered roller so as to move in a direction orthogonal to the axial direction, instead of sliding the tapered roller in the axial direction as in the prior art. Since the tapered roller moving device 1 utilizes the rotation of the tapered roller, it does not require a large height difference between the moving source and the moving destination as compared with the conventional method in which the tapered roller is slid (dropped) and moved. There are few restrictions on it. Moreover, since the width of the tapered roller W is smaller than its height, the carrying passage can be shortened with the same staying amount (number).

In the above-described embodiment, the left passage 49 can support the vicinity of the end of the small bottom surface Bs of the tapered roller W, and the right passage 58 is the end of the large bottom surface Bb of the tapered roller W. These (left turn 49, right turn 58) are not limited to the above-described configuration as long as they can support the vicinity and prevent the tapered roller W from moving in the width direction.
For example, the left roller 49 which rolls the small bottom surface Bs side of the tapered roller W may be a mere flat left roller 49B instead of the L-shaped cross section.

This is because the small bottom surface Bs does not contact the substantially upright inward facing surface 112 of the left turn 49 when the tapered roller W moves in the carry passage portion 6.
For the same reason, the left turn 49C, 49D and the right turn 58C, 58D shown in FIG. 12 also perform the same function as the left turn 49 and the right turn 58 in the above-mentioned carry section 6. Alternatively, a portion of the right turn 58, 58C, 58D that supports the lower side of the large bottom surface Bb may be separated from a portion that abuts against the large bottom surface Bb to prevent movement in the width direction (see FIG. d), (e)). The portion that abuts on the large bottom surface Bb of the tapered roller W and blocks movement in the width direction (for example, the inner surface 111 in FIGS. 10 and 11) can "block movement in the width direction" over the entire travel of the carriage path. It is not necessary to continue from the moving source to the moving destination as long as it is along the right turn 58F, 58G as a whole (it may be installed at a constant interval).

  As shown in FIGS. 13 (a) and 13 (b), when the tapered roller moving device 1 is dedicated to one type of tapered roller, the left turn 49 and the right turn 58 may be integrated as a turn 115. it can. When there is no height difference between the small bottom surface Bs side and the large bottom surface Bb side of the tapered roller W, if the integrated path 115 is inclined toward the large bottom surface Bb side ((b)), the tapered roller W is smooth. Move to If the width of the integrated path 115E can be changed, it can be used for the movement of a plurality of types of tapered rollers having different sizes (Fig. 13 (c), (d)).

  In addition, the configuration, the shape, the size, the number, the material, and the like of each configuration or the entire configuration of the tapered roller moving device 1 and the tapered roller moving device 1 can be appropriately changed in accordance with the spirit of the present invention.

The present invention is used when it is necessary to move the tapered roller reliably without using power under the condition that the moving distance of the tapered roller is short and the difference in height between the moving source and the moving destination is small because the installation location is restricted. can do.

1 Tapered roller moving device 6 Carrying part (turnway)
7 Transport path inclination means (height difference formation means)
49, 49B, 49C, 49D Left turn (second path)
58, 58C, 58D right turn (first path)
59 Right turn up and down means (means to move the first turn up and down in the vertical direction (height difference forming means))
111 Upright inner surface (locking portion) in right turn
115E Transformation

Claims (7)

A tapered roller moving method for moving a tapered roller using a difference in height between a moving source and a moving destination,
A rolling path is provided to support the lower end vicinity of the tapered roller and extend in the moving direction of the tapered roller.
One of the widthwise ones in the passage such that the large bottom side of the axial center of the tapered roller when the axis is orthogonal to the moving direction and supported by the rolling passage is lower than the small bottom side. The end side is lower than the other end side,
The tapered roller is placed on the rolling passage so that the large bottom surface is located on the one end side at the lower position in the rolling passage, and the large bottom surface is placed on the locking portion provided along the rolling passage. The tapered roller is moved by its rotation using the height difference while preventing the tapered roller from moving to a lower position in the width direction by locking. The transfer path is formed of two different and separate members,
The tapered roller movement method according to claim 1, wherein one of the two members is made to support the small bottom side, and the other is made to support the large bottom side. A method of moving a tapered roller using the difference in height between the moving source and the moving destination,
Preparing a path for separately supporting the vicinity of both ends of the tapered roller extending in the moving direction of the tapered roller,
Make one end in the width direction of the rolling path lower than the other end,
The large bottom surface is supported on the one end side, the small bottom surface is supported on the other end side, and the large bottom surface side of the axial center of the tapered roller when the tapered roller is placed on the rotation path Tilting the whole of the rotation path in the axial direction so as to be lower than the small bottom surface side,
The tapered roller is positioned by positioning the large bottom surface on the lower side of the rolling path, placing the tapered roller on the rolling path, and locking the large bottom surface to a locking portion provided along the rolling path. The tapered roller is moved by its rotation using the height difference while preventing the movement of the roller to a lower position in the width direction. A tapered roller moving device for moving a tapered roller,
A rolling path supporting a vicinity of both ends of the tapered roller and serving as a path of movement of the tapered roller,
The said change is
A first turn supporting the large bottom side of the tapered roller below the tapered roller;
A second turn supporting the small bottom side of the tapered roller below the tapered roller;
Height difference forming means for lowering the first rotation path relative to the second rotation path in the vertical direction;
When the tapered roller rotates on the turning path due to the difference in height between the moving source and the moving destination in the rolling path, the large bottom surface is locked and the tapered roller moves to the large bottom surface in the axial center direction The tapered roller moving device according to claim 1, wherein a locking portion for preventing the second roller is provided along the first rotation path. The height difference formation means is
The tapered roller moving device according to claim 4, wherein the first rotation path is vertically moved up and down. The height difference formation means is
The tapered roller moving device according to claim 4, wherein the rolling path and the locking portion are integrally inclined in the axial direction of the tapered roller. The height difference formation means is
A means for vertically moving the first path;
The tapered roller moving device according to claim 4, wherein the rolling passage and the locking portion are integrally made as a unit that inclines in an axial direction of the tapered roller.