JP6227987B2 - Jig for assembling driving device for vehicle and method for assembling driving device for vehicle using this jig - Google Patents

Description

  According to the present invention, an output spline formed in an output portion of the driving force on the engine side and an input spline formed in an input portion on the transmission side for inputting the driving force are fitted to each other, thereby The present invention relates to a traveling driving device assembly jig in a vehicle used when the transmission side and the transmission side are assembled to each other, and a traveling driving device assembly method in the vehicle using this jig.

  Conventionally, there is a driving device for driving in a vehicle as disclosed in Patent Document 1 below. According to this publication, the driving device includes an engine side and a transmission side that inputs a driving force output from the engine side and transmits the driving force to the wheel side so as to be able to change gears. Supported by

  Specifically, the engine side includes an engine that is an internal combustion engine, and a flywheel and a clutch that are sequentially supported on the end side of the crankshaft of the engine. A portion on the axial center of the driven member of the clutch is an output portion for driving force, and an output spline (inner spline) is formed in the output portion.

  On the other hand, the transmission side has a plurality of power transmission shafts arranged in parallel with each other and a gear set supported by these shafts and capable of meshing with each other. Of each of the shafts, an end portion of one shaft serves as an input portion for driving force from the engine side, and an input spline (outer spline) is formed at the input portion.

  In a state where the engine side and the transmission side are assembled to each other and the drive device is assembled, the output and input splines are spline-fitted to each other on their axis.

  Here, when carrying out maintenance and inspection work on the transmission side of the drive unit, the transmission side is usually lifted by a chain block or the like while the engine side is supported on the vehicle body and removed from the engine side. Perform the above maintenance work. After that, the operation of assembling the transmission side to the engine side is performed in the reverse procedure to the above, and the drive device is assembled accordingly.

JP-A-9-222133

  By the way, as described above, when the transmission side is assembled to the engine side, the above-mentioned output and input splines are fitted to each other on their axial centers. In this case, one of these output and input splines is The positions of the tooth and the tooth space of the other spline around the axis do not necessarily match. In this case, it is difficult to fit the above-mentioned input and input splines close to each other on their axial centers, so that at least one of the splines is slightly around the axis. It is required that the positions of the teeth of the one spline and the tooth grooves of the other spline are made to coincide with each other around the axis.

  However, as described above, when the spline is rotated around its axis, heavy objects such as the driven side of the clutch and the gear set are interlocked with the spline, and the lubricating oil is agitated accordingly. Rotating work of the above-mentioned spline tends to be heavy. Therefore, the assembling work becomes complicated accordingly, that is, the assembling work of the driving device may be complicated.

  The present invention has been made paying attention to the above-described circumstances, and an object of the present invention is to provide an output spline formed at the output portion of the driving force on the engine side and an input on the transmission side for inputting the driving force. By fitting the input spline formed in the part to each other, the engine side and the transmission side are assembled to each other, so that this assembly work can be facilitated when assembling the traveling drive device in the vehicle. Is to do.

According to the first aspect of the present invention, the engine side 2 is held in a fixed posture around the axis 10 of the output portion 11, and the transmission side 3 is held in a fixed posture around the axis 17 of the input portion 18. The output spline 12 formed in the output unit 11 and the input spline 19 formed in the input unit 18 are fitted to each other to be used when the engine side 2 and the transmission side 3 are assembled to each other. A jig for assembling a driving device for traveling in a vehicle,
A first fitting spline 39 that can be fitted to one of the above-mentioned input splines 12 and 19 is formed at one end in the axial direction, while the other spline is fitted to the other end. A fitting shaft 38 on which a second fitting spline 40 is formed, and a projecting body 43 projecting outward from a midway portion in the axial direction of the fitting shaft 38. 38, the tooth 39a of the first fitting spline 39 and the tooth groove 40a of the second fitting spline 40 are matched with each other as viewed in the line of sight along the axial direction 38 (FIG. 2). FIG.

Invention of Claim 2 is the assembly method of the drive device for driving | running | working in the vehicle using the jig | tool of Claim 1,
First, the first fitting spline is fitted to the one spline, and in this fitted state,
The protrusion is rotated together with the fitting shaft to a predetermined position around the axis of the one spline, and then the first spline is moved from the one spline to the first spline while the fitting shaft and the protrusion are held at the predetermined position. 1 Remove the mating spline,
Next, the second fitting spline is fitted to the other spline, and in this fitted state,
By rotating the projecting body together with the fitting shaft to another predetermined position around the axis of the other spline, the position of the tooth groove around the axis of the output spline and that of the input spline The positions of the teeth around the axis are matched with each other, and then the second fitting spline is detached from the other spline while the fitting shaft and the projecting body are held in the other predetermined positions,
2. The output and input splines that are positioned coaxially with each other in the above-described state are fitted close to each other on their axial centers. It is the assembly method of the drive device for driving | running | working in the vehicle using a jig | tool .

  In addition, in this section, the reference numerals and drawing numbers appended to the above terms are not intended to limit the technical scope of the present invention to the “Example” section and the contents of the drawings described later.

  The effects of the present invention are as follows.

According to the first aspect of the present invention, the engine side is held in a fixed posture around the axis of the output portion, and the transmission side is held in a fixed posture around the axis of the input portion. By assembling the output spline to be formed and the input spline formed in the input portion to each other, an assembly jig for a traveling drive device in a vehicle used when the engine side and the transmission side are assembled to each other. There,
A first fitting spline that can be fitted to any one of the above-mentioned output and input splines is formed at one end in the axial direction, and can be fitted to the other spline at the other end. A fitting shaft on which a second fitting spline is formed and a projecting body projecting outward from a midway portion in the axial direction of the fitting shaft, and a line of sight along the axial direction of the fitting shaft. As seen, the teeth of the first fitting spline and the tooth groove of the second fitting spline are matched.

  For this reason, if the fitting shaft of the jig is rotated by an arbitrary amount of rotation about its axis, the output spline and the first fitting spline of the fitting shaft are fitted, Assuming that the input spline and the second fitting spline of the fitting shaft are fitted, the teeth of the first fitting spline and the second fitting are seen from the line of sight along the axial direction of the fitting shaft. According to the present invention that the tooth space of the combined spline matches, when viewed from the line of sight, the tooth space of the output spline to which the first fitting spline is fitted and the input spline to which the second fitting spline is fitted The teeth will match.

  Therefore, when the engine side and the transmission side are assembled to each other in the assembly operation of the drive device, for example, a tooth groove of the output spline positioned coaxially by using a jig as described above in advance. And the teeth of the input spline are matched, and the above-mentioned output and input spline are separated from each other on the shaft center to remove the jig, and then the output and input spline is mounted on the shaft center. If these are brought close to each other, the output and input splines can be smoothly fitted to each other. In addition, the handle is used to rotate the fitting shaft for fitting the output spline and the first fitting spline or fitting the input spline and the second fitting spline. Therefore, the work for each of the above-mentioned fittings can be facilitated accordingly. As a result, the assembly operation of the drive device can be facilitated.

Invention of Claim 2 is the assembly method of the drive device for driving | running | working in the vehicle using the jig | tool of Claim 1,
First, the first fitting spline is fitted to the one spline, and in this fitted state, the projecting body is rotated together with the fitting shaft to a predetermined position around the axis of the one spline. In addition, the first fitting spline is detached from the one spline while the fitting shaft and the protruding body are held in the predetermined position,
Next, the second fitting spline is fitted to the other spline, and in this fitting state, the projecting body is rotated together with the fitting shaft to another predetermined position around the axis of the other spline. By aligning the position of the tooth groove around the axis of the output spline with the position of the tooth around the axis of the input spline, the fitting shaft and the projecting body are The second fitting spline is detached from the other spline while being held at the other predetermined position,
Next, in the above state, the output and input splines that are positioned coaxially with each other are brought close to each other on the axis and are fitted to each other.

  Therefore, according to the assembly work between the engine side and the transmission side using the jig, the amount of movement between the engine side and the transmission side, which is considerably larger than the jig, is suppressed as much as possible. These can be assembled with each other. Moreover, in this assembling operation, when the projecting body is rotated together with the fitting shaft to a predetermined position or to another predetermined position as described above, the projecting body is moved to the predetermined position or other predetermined position. It can be used as a guide for positioning the fitting shaft with respect to the position. Therefore, the assembly work of the drive device can be further facilitated accordingly.

It is a development perspective view of the drive device in vehicles. It is the II-II arrow partial enlarged view of FIG.

  The present invention relates to a jig for assembling a driving device for driving in a vehicle and a method for assembling a driving device for driving in a vehicle using this jig, so that the assembling work of the driving device for driving in the vehicle can be easily performed. In order to realize the above-described object, a mode for carrying out the present invention is as follows.

  That is, the assembly jig for the driving device for driving in the vehicle holds the engine side in a constant posture around the axis of the output portion, and holds the transmission side in a constant posture around the axis of the input portion, In this state, the engine side and the transmission side are assembled together by fitting the output spline formed in the output unit and the input spline formed in the input unit to each other.

  The jig is formed with a first fitting spline that can be fitted to one of the above-mentioned input and spline at one end in the axial direction, and the other spline at the other end. A fitting shaft on which a second fitting spline that can be fitted is formed, and a projecting body that projects outward from a midway portion in the axial direction of the fitting shaft. The teeth of the first fitting spline and the tooth groove of the second fitting spline are made to coincide with each other when viewed from the line of sight along the axial direction of the fitting shaft.

  In order to explain the present invention in more detail, an embodiment thereof will be described with reference to the accompanying drawings.

  In the figure, reference numeral 1 denotes a driving device for traveling in a vehicle exemplified by an automobile.

  The driving device 1 includes an engine side 2 and a transmission side 3 that inputs a driving force output from the engine side 2 and transmits the driving force to a wheel side (not shown) so as to be able to change gears. Each is detachably supported on the vehicle body via the illustrated elastic engine mount.

  Specifically, the engine side 2 is sequentially supported on an engine 6 that is an internal combustion engine, a crankshaft (not shown) supported by a crankcase 7 of the engine 6, and a shaft end side of the crankshaft. A flywheel 8 and a clutch 9 are provided. A portion of the driven member of the clutch 9 on the shaft center 10 is an output portion 11 for driving force, and an output spline 12 that is an inner spline is formed on the shaft center 10 of the output portion 11.

  On the other hand, the transmission side 3 includes a transmission case 16 that constitutes an outer shell thereof, a plurality of power transmission shafts (not shown) that are arranged in parallel in the transmission case 16 and supported by the transmission case 16, respectively. A gear set (not shown) that is supported by these shafts and that can be engaged with each other is provided. Of each of the shafts, an end portion on the shaft center 17 of one shaft is an input portion 18 for driving force from the engine side 2, and an input spline 19 that is an outer spline is formed on the shaft center 17 of the input portion 18. Is formed. The input spline 19 and the output spline 12 have the same shape and the same size, and the splines can be fitted to each other on the axial centers 10 and 17 of these 12 and 19. The shape of the outer spline out of the above-mentioned output and input splines 12 and 19 may be reversed.

  In the state where the engine side 2 and the transmission side 3 are assembled to each other and the drive device 1 is assembled, the opening edge portion 21 on the output portion 11 side of the crankcase 7 and the transmission case 16 described above. The opening edge portion 22 which is an outward flange formed on the input portion 18 side is joined to each other by a plurality of fasteners 23 provided in a direction along each of the opening edge portions 21 and 22, and the above-described output and input splines. 12 and 19 are spline-fitted to each other on the axial centers 10 and 17 of these 12 and 19.

  Each fastener 23 includes a screw hole 26 formed in the opening edge 21 of the crankcase 7, a bolt insertion hole 27 formed in the opening edge 22 of the transmission case 16, and the bolt insertion hole 27. And a bolt 28 whose male screw part is screwed into the screw hole 26.

  Here, when the drive device 1 is assembled, the knock pin 31 is detachably attached to at least one of the plurality of screw holes 26 described above. One end portion of the knock pin 31 is a male screw portion 32 screwed into the screw hole 26, and the other end portion is a knock pin main body 33 having substantially the same diameter as the bolt 28.

  A hollow set 34 that is a hexagonal hole is formed at the protruding end of the knock pin body 33. A hollow wrench (not shown) can be engaged with the holo set 34, and the knock pin 31 can be attached to and detached from the one screw hole 26 by rotating the wrench.

  When assembling the drive device 1, first, the engine side 2 is supported by, for example, the vehicle body and held in a fixed posture around the axis 10 of the output portion 11, and the transmission side 3 Is suspended by, for example, a chain block and is held in a fixed posture around the axis 17 of the input portion 18. In this state, the axes 10 and 17 are positioned coaxially with each other. Then, the above-mentioned output and input splines 12 and 19 are brought close to each other on the coaxial shaft centers 10 and 17, and at this time, the knock pin main body 33 of the knock pin 31 attached to the one screw hole 26 is the above-mentioned. The bolt insertion hole 27 corresponding to one screw hole 26 can be closely fitted, and the outlet and input splines 12 and 19 can be fitted to each other.

  When the above-mentioned input and input splines 12 and 19 are fitted to each other, an assembly jig 37 of the driving device 1 is provided so that the fitting can be performed smoothly.

  The jig 37 has a fitting shaft 38, a first fitting spline 39 is formed at one end of the fitting shaft 38, and a second fitting spline 40 is formed at the other end. The first and second fitting splines 39 and 40 have the same shape and the same size, and can be fitted to any of the above-described output and input splines 12 and 19. When viewed from the line of sight along the axial direction of the fitting shaft 38 (FIG. 2), the teeth 39a of the first fitting spline 39 and the tooth grooves 40a of the second fitting spline 40 are in agreement with each other. .

  The jig 37 has a projecting body 43 projecting outward from a midway portion in the axial direction of the fitting shaft 38. The projecting body 43 includes a projecting body base 44 projecting radially outward from a middle portion of the fitting shaft 38, and a projecting end of the projecting body base 44 in the axial direction of the fitting shaft 38. And an extending portion 45 extending integrally. The outer end surface of the extending portion 45 on the radially outer side of the fitting shaft 38 has a tapered shape toward the radially outer side of the fitting shaft 38, and is sharpened on the outer end surface of the extending portion 45. A portion 46 is formed.

  Next, a method for assembling the driving device 1 using the knock pin 31 and the jig 37 will be described.

  First, as shown by a solid line in FIG. 2, the first fitting spline 39 of the fitting shaft 38 of the jig 37 is fitted to the output spline 12, and the fitting shaft 38 and the fitting shaft 38 are engaged in this fitting state. The protrusion 43 is rotated A to a predetermined position around the axis 10 of the output spline 12 (two-dot chain line in FIG. 2). This predetermined position is a position where the sharpened portion 46 of the projecting body 43 is directed to the knock pin 31 attached to the one screw hole 26 described above. That is, when the fitting shaft 38 is set to a predetermined position, the protruding body 43 serves as a pointer and the knock pin 31 serves as a scale. This scale may be provided separately.

  Then, the fitting shaft 38 is moved away from the output spline 12 while the fitting shaft 38 and the projecting body 43 are held at the predetermined position, and the fitting shaft 38 is moved away from the output spline 12. The first fitting spline 39 is released.

  Next, as shown by a three-dot chain line in FIG. 2, the second fitting spline 40 of the fitting shaft 38 of the jig 37 is fitted to the input spline 19, and the fitting shaft is fitted in this fitted state. 38, the protrusion 43 is rotated B to another predetermined position around the axis 17 of the input spline 19 (two-dot chain line in FIG. 2). The other predetermined position is a position where the sharpened portion 46 of the protrusion 43 is directed to the bolt insertion hole 27 corresponding to the one screw hole 26 described above. That is, when the fitting shaft 38 is set to the other predetermined position, the protruding body 43 functions as a pointer and the knock pin 31 functions as a scale. This scale may be provided separately.

  Here, the other predetermined position and the predetermined position are the same position. For this reason, the position of the tooth gap around the shaft center 10 of the output spline 12 interlocked with the rotation A to the predetermined position of the first fitting spline 39 of the fitting shaft 38 described above, The positions of the teeth around the axis 17 of the input spline 19 interlocked with the rotation B to the other predetermined position of the second fitting spline 40 coincide with each other. In this case, the predetermined positions may be set individually.

  Next, the fitting shaft 38 is moved away from the input spline 19 while the fitting shaft 38 and the projecting body 43 are held at the other predetermined positions, and the fitting from the input spline 19 is performed. The second fitting spline 40 of the shaft 38 is released.

  Next, the engine side 2 and the transmission side 3 in the above state are brought close to each other on the shaft centers 10 and 17 positioned coaxially with each other. Then, first, the knock pin 31 and the bolt insertion hole 27 are fitted, and the relative position between the opening edge 21 of the crankcase 7 and the opening edge 22 of the transmission case 16 is determined with higher accuracy. Further, the tooth groove of the output spline 12 and the teeth of the input spline 19 are accurately matched around the shaft centers 10 and 17, so that the fitting of the output spline 12 and 19 is smoothly achieved. Accordingly, the assembly work of the drive device 1 can be easily performed.

  Further, when the engine side 2 and the transmission side 3 are further brought closer to each other, the opening edge 21 of the crankcase 7 and the opening edge 22 of the transmission case 16 come into contact with each other. The fitting between the input splines 12 and 19 is completed, and the assembly work between the engine side 2 and the transmission side 3 is completed. Therefore, the opening edge portions 21 and 22 are fastened by the fasteners 23. At this time, if the knock pin 31 is removed from the one screw hole 26 and the bolt 28 inserted into the bolt insertion hole 27 is screwed into the one screw hole 26, the both opening edge portions 21. , 22 is completed, and the assembly of the driving device 1 is completed.

  In the assembly operation between the engine side 2 and the transmission side 3, the protrusion 43 of the jig 37 can be used as a handle when the fitting shaft 38 is rotated A and B, and the protrusion 43 The sharpened portion 46 can also be used as a guide for positioning the fitting shaft 38 by rotating A and B to the predetermined position and other predetermined positions. Therefore, the assembling work of the driving device 1 can be made easier.

  The jig 37 may be made of metal or resin. Further, in the method of assembling the driving apparatus 1, the jig 37 is rotated A by fitting the first fitting spline 39 to the output spline 12, and the second fitting spline 40 is attached to the input spline 19. The order of fitting and rotating the jig 37 may be reversed.

DESCRIPTION OF SYMBOLS 1 Drive device 2 Engine side 3 Transmission side 6 Engine 7 Crankcase 10 Axle 11 Output part 12 Output spline 16 Transmission case 17 Axle 18 Input part 19 Input spline 21 Open edge 22 Open edge 23 Fastener 26 Screw hole 27 Bolt insertion hole 28 Bolt 31 Knock pin 32 Male thread portion 33 Knock pin main body 34 Holoset 37 Jig 38 Fitting shaft 39 First fitting spline 39a Tooth 40 Second fitting spline 40a Tooth groove 43 Projection body 44 Projection body base 45 Extension part 46 Sharp point

Claims (2)

The engine side is held in a fixed posture around the axis of the output unit, and the transmission side is held in a fixed posture around the axis of the input unit. In this state, the output spline formed in the output unit and the above An assembly jig for a traveling drive device in a vehicle used when the engine side and the transmission side are assembled to each other by fitting the input splines formed in the input part to each other,
A first fitting spline that can be fitted to any one of the above-mentioned output and input splines is formed at one end in the axial direction, and can be fitted to the other spline at the other end. A fitting shaft on which a second fitting spline is formed and a projecting body projecting outward from a midway portion in the axial direction of the fitting shaft, and a line of sight along the axial direction of the fitting shaft. As seen, the assembly jig for the travel drive device in the vehicle, wherein the teeth of the first fitting spline and the tooth groove of the second fitting spline are matched. An assembly method of a driving device for traveling in a vehicle using the jig according to claim 1,
First, the first fitting spline is fitted to the one spline, and in this fitted state,
The protrusion is rotated together with the fitting shaft to a predetermined position around the axis of the one spline, and then the first spline is moved from the one spline to the first spline while the fitting shaft and the protrusion are held at the predetermined position. 1 Remove the mating spline,
Next, the second fitting spline is fitted to the other spline, and in this fitted state,
By rotating the projecting body together with the fitting shaft to another predetermined position around the axis of the other spline, the position of the tooth groove around the axis of the output spline and that of the input spline The positions of the teeth around the axis are matched with each other, and then the second fitting spline is detached from the other spline while the fitting shaft and the projecting body are held in the other predetermined positions,
2. The output and input splines that are positioned coaxially with each other in the above-described state are fitted close to each other on their axial centers. A method for assembling a driving device for traveling in a vehicle using a jig .

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