JPH04112739U - Transmission assembly equipment - Google Patents

Abstract

(57) [Summary] [Purpose] To easily fix a shaft, prevent the shaft from rotating, and tighten a nut onto the shaft. [Structure] A transmission assembly device for tightening nuts on the respective upper ends of a first shaft whose lower end penetrates outside the case and a second shaft disposed parallel to the first shaft. a fixing means for fixing the lower end of the shaft; a nut runner for tightening a nut on the upper end of each of the first shaft and the second shaft; and either the first shaft or the second shaft attached to the nut runner. and a sleeve shift means for axially moving a sleeve provided in the axial direction, and the gear of the first shaft and the gear of the second shaft, which are engaged with each other, are shifted by the sleeve shifted in the axial direction. fixed to the second shaft.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a transmission assembly device, particularly a transmission assembly that tightens nuts. Regarding equipment.

0002

[Conventional technology]

Conventionally, a tightening tool is used to tighten a nut on the shaft end of a temporarily assembled transmission shaft. When tightening, start tightening the nut onto the shaft using a tightening tool, but When a torque exceeding a certain level is applied to the shaft, the shaft itself will move in the tightening direction. The problem was that it would start to turn and the nut could not be tightened enough onto the shaft.

0003 As a solution to this problem, for example, it is disclosed in Japanese Utility Model Application Publication No. 61-81876. As shown, the tightening tool body has a gear part that can engage and lock with the gear part of the shaft. By providing a gear member for preventing rotation, rotation can be prevented without damaging the gear part. This makes it possible to tighten the nut onto the shaft with sufficient torque. Tightening tools are known.

0004

[Problem that the idea aims to solve]

However, in the conventional tightening tool mentioned above, the gear part for preventing rotation of the gear part The additional work of attaching the material makes the tightening work more complicated, and The nuts had to be tightened for each shaft, which took a lot of time. Therefore, the present invention was made to solve the above-mentioned drawbacks of the conventional technology. , you can easily fix the shaft to prevent it from rotating and tighten the nut onto the shaft. The purpose is to provide a transmission assembly device that can perform fitting. .

[0005]

[Means to solve the problem]

In order to achieve the above object, the present invention provides a first system whose lower end penetrates outside the case. shaft and a second shaft arranged parallel to the first shaft. In a transmission assembly device that tightens a nut on the upper end, the lower end of the first shaft a fixing means for fixing the first and second shafts; and upper ends of each of the first shaft and the second shaft. A nut runner that tightens the nut, and a nut runner attached to this nut runner. The sleeve provided on either the first shaft or the second shaft is and a sleeve shift means for moving the sleeve in the axial direction. The gears of the first shaft and the gears of the second shaft that are engaged with each other are connected to the first shaft. It is characterized in that it is fixed to the shaft and the second shaft.

[0006] In the present invention configured as described above, first, the lower end of the first shaft is fixed. fixed by means. Next, either the first shaft or the second shaft The sleeve provided in the sleeve is moved in the axial direction by a sleeve shift means. This conclusion As a result, this sleeve allows the gears of the first shaft and the second shaft to mesh with each other. A gear of the foot is fixed to the first shaft and the second shaft.

[0007]

【Example】

An embodiment of the transmission assembly apparatus of the present invention will be described below with reference to FIGS. 1 to 3. I will clarify. Figure 1 is a diagram showing a transmission assembled by the transmission assembly apparatus of the present invention. A top view, FIG. 2 is taken along line II-II in FIG. 1 showing an embodiment of the transmission assembly device of the present invention. FIG. 3 is a partial sectional view of FIG. 1 showing an embodiment of the transmission assembly apparatus of the present invention. It is a partial sectional view along the III-III line.

[0008] In FIG. 1, 1 indicates a transmission to be assembled, and this transmission 1 is a primary - a shaft 2 and a secondary disposed parallel to this primary shaft 2; It has a shaft 3. A hub sleeve 4 is installed on this primary shaft 2. The hub sleeve 4 is attached to the shaft along the shift rod 5. A shift fork 6 for moving in the direction is provided in engagement with the shift fork 6. 7 is transmission 1 It is a case.

[0009] As shown in FIG. 2, the primary shaft 2 and the secondary shaft of the transmission 1 Shaft 3 has primary 5th gear 10 and secondary 5th gear 1. 1 are attached in a state where they are meshed with each other. At the upper end of primary shaft 2 is the primary gear No. 5 gear 10 and other gears (not shown). A lock nut 12 to be tightened to the shaft 2 is temporarily fastened. secondary -A lock nut 13 is also temporarily tightened at the upper end of the shaft 3. . 4 indicates the above-mentioned hub sleeve, and this hub sleeve 4 moves in the axial direction and It is fitted with the initial No. 5 gear 10.

0010 Furthermore, as shown in FIG. 2, above the transmission 1, there is a transmission assembly assembly of the present invention. 20 is arranged to be movable in the axial direction. This transmission assembly device 20 has two shafts. It has a nut runner 21, and this two-shaft nut runner 21 has a primary shaft. Spindle 22 and tightening socket 23 for shaft 2 and spindle for secondary shaft 3 A pindle 24 and a tightening socket 25 are provided. Furthermore, 2-axis nutrunner 2 1 on the outer periphery of the spindle 22 and tightening socket 23 for the primary shaft 2. A cylindrical member 26 is integrally provided, and a slidable member is provided on the outer peripheral surface of the cylindrical member 26. A sleeve shifter 27 is provided, and this sleeve shifter 27 is supported by a spring 28. is urged downward by. On the other hand, the lower end of the primary shaft 2 is connected to the case. It penetrates outward, and its lower end is fixed by a lower end fixing device 29.

[0011] Next, the assembly operation will be explained. On the assembly line, transmission 1 is brought to the lock nut tightening station, first the transmission assembly device 20 The two-shaft nut runner 21 moves down, and the sleeve shift tool 27 first moves to the primary seat. Contact and press the hub sleeve 4 of the shaft 2 to move the hub sleeve 4 axially downward. Then, the hub sleeve 4 is fitted with the primary No. 5 gear 10. As a result, the The primary gear 10 and the primary shaft 2 are coupled and fixed, and this The secondary of the secondary shaft 3 meshed with the primary 5th gear 10 of The fifth gear 10 is also fixed at the same time. As a result, the primary shaft 2 has a lower end It is fixed by the part fixing device 29, the hub sleeve 4 and the primary No. 5 gear 10. , the rotation is stopped. When tightening the lock nut, the secondary shaft 3 Although the structure was difficult to prevent from rotating, this example has improved the primary system. via the secondary No. 5 gear 11 that meshes with the primary No. 5 gear 10 of shaft 2. It is fixed to the primary shaft 2 and prevented from rotating. Next, tighten the socket. The nut 23 engages with the lock nut 12 of the primary shaft 2 and tightens. cormorant. At the same time, the tightening socket 24 is connected to the lock nut 13 of the secondary shaft 3. engages and tightens. Note that the sleeve shift tool 27 should not touch the hub sleeve 4. When the hub sleeve 4 is moved downward in the axial direction by contacting and pressing, more force than necessary is applied to the hub. If it touches the sleeve 4, there is a risk of damaging the primary No. 5 gear 10. In this case, the spring 28 causes the sleeve shifter 27 to retreat upward; There is no damage to the primary No. 5 gear 10 during work.

0012 Next, as shown in FIG. 3, above the shift fork 6 there is a shift fork shaft. A foot 30 is integrally attached to the two-shaft nut runner 21. this shift The fork shift tool 30 allows the shift fork 6 to be moved during assembly work. It can be moved downward along the shift rod 5. This shift fork 6 is engaged with the hub sleeve 4 as described above. this shift fork shift The tool 30 causes the hub sleeve 4 to be moved to the primary shaft by the sleeve shift tool 27. When moving the foot 2 downward in the axial direction, the shift fork 6 is attached to the shift rod 5 at the same time. can be moved downward along the line. For this reason, the deflection of the shift fork 6 is This makes it possible to perform shift operations smoothly.

[0013] In the above embodiment, the hub sleeve 4 is not provided on the primary shaft 2. However, in the present invention, the hub sleeve 4 is provided on the secondary shaft 3. It can also be applied to transmissions.

[0014]

[Effect of the idea]

As explained above, according to the present invention, by using the sleeve, it is possible to The nut can be tightened to the shaft by fixing the shaft to the shaft.

[Brief explanation of drawings]

FIG. 1 is a plan view showing a transmission assembled by the transmission assembly apparatus of the present invention.

FIG. 2 is a partial sectional view taken along line II-II in FIG. 1, showing an embodiment of the transmission assembly apparatus of the present invention.

FIG. 3 is a partial sectional view taken along line III--III in FIG. 1, showing an embodiment of the transmission assembly apparatus of the present invention.

[Explanation of symbols]

1 Transmission 2 Primary shaft 3 Secondary shaft 4 Hub sleeve 6 Shift fork 7 case 10 Primary 5th gear 11 Secondary 5th gear 12 Lock nut 13 Lock nut 20 Transmission assembly equipment 21 2-axis nutrunner 23 Tightening socket 25 Tightening socket 27 Sleeve shift tool 28 Spring 29 Lower end fixing device 30 Shift fork shift tool

Claims (2)

[Scope of utility model registration request] 1. A transmission assembly device for tightening nuts on the respective upper ends of a first shaft whose lower end penetrates outside the case and a second shaft disposed parallel to the first shaft. a fixing means for fixing the lower end of the first shaft; a nut runner for tightening a nut on the upper end of each of the first shaft and the second shaft;
a sleeve shift means for axially moving a sleeve attached to the nut runner and provided on either the first shaft or the second shaft; A transmission assembly device characterized in that a gear on the shaft and a gear on the second shaft are fixed to the first shaft and the second shaft. 2. The transmission assembly apparatus according to claim 1, wherein the nut runner is provided with shift fork shifting means for axially moving the shift fork engaged with the sleeve.