JPS59208231A - Fixing part of one way clutch of speed change gear - Google Patents

Abstract

PURPOSE:To prevent the shock of a spline fitting part to be generated at the time of inversion from a free state to a locking state, by energizing a race, on which a spline connecting with a spline formed on a supporting component is formed, in the locking direction of a one way clutch. CONSTITUTION:An outer spline 261 is provided on the circumference of an outer race 26 of a one way clutch F2, a spline fitting of which is made in an inner spline 25 provided on the inner circumference of a main case and connected with the external circumference with a bolt 2. Then it is energized in the locking direction A of the one way clutch through a leaf spring 1 inserted through a slit 3 formed on the case. As an outer race 26 is pressed against in the locking direction even when the one way clutch F2 is being revolved in the free direction in consequence of this, a shock is not generated at a spline fitting part when a state is inverted in the locking direction from a free state.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a one-sided clutch (mainly used in automatic transmissions).
(including one-way brakes).

In a one-way clutch, one race of an outer race or an inner race is connected to a rotating member or is formed integrally with the rotating member, and the other race is held by a fixed or rotating holding member of the one-way clutch. (-1) Spline fitting is commonly used as a means of connecting the other race and the holding member, and from the viewpoint of improving assembly ease and preventing uneven external force from being applied to the race during fitting. A loose fit is adopted.For this reason, when the one-way clutch reverses from the free direction to the lock direction, the spline fitting part of the race returns to the free state, and the sliding friction causes the above assembly to be compensated for. The lock, which had previously been displaced in one direction, suddenly moves it in the opposite direction, creating a shock at the spline fitting.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a one-way latch mounting portion for a transmission that can prevent impact generated at the spline fitting portion during reversal from free to lock.

The one-sided clutch mounting portion of the transmission of the present invention includes a spline formed on a holding member, a one-sided clutch in which an inner race or an outer race is provided with a spline that engages with the spline, and a race in which the spline is provided. and means for biasing the one-sided clutch in the locking direction.

Next, the present invention will be explained based on embodiments shown in the drawings.

FIG. 1 shows a cross section of an automatic transmission for a vehicle, and FIG. 2 shows its main parts.

Automatic transmission @ 100 is fluid type 1 to lux converter 20
It consists of a 0 and 1 lance tensioner 300 and a hydraulic control II device.

The transmission 300 includes a first gear set 1 to 40 and a second gear set 1 to 40.・50 and two multi-disc clutches C1 and C2 operated by hydraulic servo
, 1 belt brake B1. 2 multi-disc brakes B2
, B3, a transmission 10 with three forward speeds and one reverse speed comprising two one-way latches F1 and F2, a third planetary gear H1-8o, and one multi-disc clutch operated by a hydraulic servo. C3, one multi-disc brake B4, one one-way latch F3, and an underdrive device 60, and includes a differential arrangement 11 and 90.

The automatic transmission case 110 includes a torque converter 200
, a front case 1201 integrally formed with each chamber housing the differential 90, a transmission 10, a main case 130 integrally formed with each chamber housing the underdrive device 60 and a differential rear cover 131, and a transmission. It consists of a rear cover 140 that accommodates the output key 746 of the device and the input gear 47 of the underdrive device 60, and also covers the rear side of the automatic transmission, and includes a front case 120, a main case 130, and a main case 13.
0 and the rear cover 140 are each fastened with bolts.

The torque converter 200 is housed in the torque converter chamber 121 referred to in the front section 1j (engine side). Between the cylindrical transmission chamber 132 continuously covering the rear of the torque converter chamber 121 and the torque converter 121,
An oil pump front cover 151 is firmly fastened to the main case 130 and has a cylindrical portion 152 that is a dot plate that houses the oil pump 150 and projects forward inward. , an oil pump cover 154 having a cylindrical front center support 153 that is coaxial with the cylinder upper part 152 and protrudes rearward is tightened to connect the front cover 153 and the rear cover 1.
54 forms a partition wall 155 between both chambers. Furthermore, an intermediate support wall 157 having cylindrical center sabots 1 to 156 projecting forward is provided at the rear of the transmission v132.

The transmission chamber 13 is located between the partition wall 155 and the intermediate support wall 157.
2, the space between the intermediate support wall 157 and the rear cover 140 forms an output gear chamber 141 of the transmission, and the rear cover 140 has a cylindrical rear center boat 142 that is coaxial with the front center support 153 and faces forward. It is installed protrudingly.

A cylindrical underdrive device chamber 133 is provided in parallel to the side of the cylindrical transmission chamber 132, and a hole-shaped front cover support is provided in the wall 121 of the front case 120 at the center of the front thereof. -1-158 is provided, and a cylindrical center support 15 that protrudes long forward is provided at the rear of the
An intermediate support wall 160 is provided to which 9 is fastened with bolts, and an input gear chamber 142 of the underdrive device is formed between the rear cover 140 and the intermediate support wall 160.
21 forms an underdrive device to 133.

A fixed shaft 203 of a one-way clutch 202 that supports the stator 201 of the 1 to LU converter 200 is fitted inside the Freon 1 center support 153, and the fixed shaft 203
An input shaft 41 of the Herans transmission 1, which is the output shaft of the torque converter, is rotatably supported inside the shaft 3.

The input shaft 41 has a large diameter rear end 42 that projects rearward from the front center sabots 1 to 153;
A rearward facing hole 43 is formed in the center of 2. A first intermediate power transmission shaft 44 arranged in series with the input shaft 41 is rotatably mounted behind the input shaft 41 .
The tip is in contact with the hole 43, and the rear end is in contact with the output key 74.
The cylindrical portion 6A of the output gear is spline-fitted into the inner hole 6B of the cylindrical portion 6A at the center of the output gear. Transmission shaft 44
A Zang gear shaft 45 is rotatably fitted on the outer side of the front end side via a bearing.

The input gear 47 of the underdrive device that meshes with the output gear 4 ( ) has its central cylindrical portion IA supported by a center support 159 via a roller bearing 103 .
A rear end portion of a second intermediate transmission shaft 48 passing through the center of the underdrive device chamber 133 is spline-fitted into the inner hole 7B. The transmission shaft 48 has a rod shape with a seven-lunge-like protrusion 81 provided at the middle part of the tip side and an oil passage formed inside, and the tip end is connected to a roller bearing 104.
It is supported by the hole-shaped center support 158 via.

A pair of roller bearings 104 on the transmission shaft 48 and the flange-like protrusion 81 are assembled with a spring material 105 sandwiched between them, and a knurl 1-82 that is tightened at the tip with pre-adjustment. An output gear 49 of a multi-stage transmission consisting of a transmission 10 and an underdrive device 60 is supported via a tapered roller bearing 106, and the output gear 49 meshes with a large drive gear 91 of a differential 90. There is.

Between the flange-like protrusion 81 on the transmission shaft 48 and the center support 159, a cylindrical gear shaft 61 is rotatably supported via a bearing. A cylindrical inner race shaft 62 is rotatably supported via a bearing, and the outer rear end of the Zang gear shaft 61 and the inner side of the inner race shaft 62 are spline-fitted.

In the transmission chamber 132, first, in the front, 11
The gJi hydraulic servo drum 11, which opens at 1j, is rotatably fitted onto the front center support 153, and an annular piston 12 is fitted between the inner and outer peripheral walls of the gJi hydraulic servo drum 11, which is connected to the clutch C2.
When forming the hydraulic servo 13, a return spring 14 is attached to the inner circumferential wall of the shaft 6, and a clutch C2 is attached to the inside of the outer circumferential wall. On the rear side of the first oil tank servo drum 11,
A second hydraulic servo drum 1G that is open at the rear and has an annular projection 15 at the front is fixed to the rear end 42 of the input shaft 41, and the annular piston 1 is connected between the rear end 42 and the outer peripheral wall.
7 is fitted to form the hydraulic valve 18 of the clutch C1, and a return spring 19 is mounted on the inner circumferential side, and the clutch C1 is mounted on the inner side of the outer circumferential wall. Further, a clutch C2 is attached to the outer periphery of the annular projection 15, and the first and second hydraulic servo drums 11.16 are connected via the clutch C2. A first planetary gear set 40 is provided on the rear side of the second hydraulic servo drum 16, its ring gear R1 is connected to the second hydraulic servo drum 1G via a clutch C1, and the carrier P1 is connected to the intermediate shaft 44. The sun gear S1 is spline-fitted to the tip of the sun gear shaft 4.
It is integrated with 5. In addition, the connecting drum 20, which is molded to cover the 1.2 hydraulic servo drum 11.16 and the 1st brane gear sets 1 to 40 in a minimum space, is fixed to the outside of the 1st hydraulic servo drum 11 at its tip. The rear end is connected to the Zang gear shaft 45 on the rear side of the first planetary gear set 1-40, and a belt brake B1 is provided on the outer circumferential side.

An annular third hydraulic servo drum 22 that is open at the rear is fixed in the surplus space 21 outside the connecting drum on the first planetary gear set 40IA side, and a piston 23 is fitted therein to form a hydraulic servo 24 of the brake B2. .The hydraulic pressure υ
- The spline 25 formed inside the main case 130 on the rear side of the engine 24 includes the brake disc b2 of the brake B2 and the outer race 26 of the one-way clutch F2 from the front.
, the brake disc b3 of the brake B3 is spline-fitted to the center support 1 of the intermediate support wall 157 on the rear side.
Insert screws 1 and 2 into the annular hole between the outer circumferential side of 5G and the case 120.
7 is fitted to form the hydraulic servo 28 of the brake B3, and the return spring 29 of the hydraulic servo 28 is connected to the 7 lunge plate 3 attached to the tip of Rentazabo 1-156.
Supported by 0. A one-way latch F1 is provided on the inside of the brake B2, and the one-way latch F1 connects the gear shaft 45 with the inner race, and the outer race 31 is connected to the brake B2.
A second planetary gear set 50 is attached to the rear side of the one-way clutch F1. In the second planetary gear set 50, a sun gear S2 is formed integrally with a sun gear shaft 45, a carrier P2 is connected to an inner race 32 of an outer one-sided brake F2, and is also connected to a brake B3, and a ring gear R2 is an intermediate It is connected to a transmission shaft 44.

In the underdrive device chamber 133, the output gear 4
At the rear end of 9 is a parking gear 11 in the form of a large-diameter 7-lung plate.
1 is fixed, and a governor drive gear 112 is fixed in the gap between the output gear 49 and the parking gear 111. A third planetary gear set 80 is provided on the rear side of the output gear 49, a ring gear R3 is connected to a protrusion 81 of the second intermediate transmission shaft 48 via a seven flange plate 63, and a planetary carrier P3 is connected to a connecting drum 64. The sun gear S3 is connected to the parking gear 111 via the sun gear shaft 61. A fourth hydraulic servo drum 65 that opens forward and covers the rear side of the third planetary gearlet 80 is fixed to the inner race shaft 62, and an annular piston 6G is fitted between the outer peripheral wall and the inner race shaft 62 to form a clutch. C
A return spring 68 is attached to the inner race shaft side, and a clutch C3 is attached to the inner side of the outer peripheral wall.
is connected to. One-way brake F with inner race shaft 62 attached to the rear side of hydraulic servo drum 65
A brake B4 is provided between the inner race shaft 62 and the main case 130 on the rear side, and an annular hole 69 between the outer peripheral side of the center support 159 of the intermediate support wall 160 on the rear side and the main case 130. A piston 70 is fitted to form a hydraulic servo 71 of the brake B4, and return springs 72 are fitted into grooves provided at equal intervals on the outer circumferential side of the brake B4.

A differential gear chamber 12 is provided on the side of the torque converter chamber 121.
A differential gear 11 is supported by a tapered roller bearing 107, and a large input wheel 91 provided at the rear end meshes with the output gear 49.

The transmission 300 engages each clutch and brake using hydraulic pressure selectively output from a hydraulic control device (not shown) to the hydraulic pressure number of each frictional engagement device according to vehicle running conditions such as vehicle speed and throttle angle. Alternatively, the transmission is released, and the gear is shifted to four forward gears or one reverse gear.

Table 1 shows examples of the gear positions (RANGE) achieved by the operation of each clutch, brake, one-way clutch, and one-way brake.

Table 1 In Table 1, E indicates that the corresponding clutch, brake, one-way clutch, or one-way brake is engaged. However, E) indicates that the corresponding one-sided clutch or one-sided brake is engaged only in the engine drive state, and is not engaged in the engine braking state. Furthermore, e indicates that the corresponding one-way latch or one-way brake is engaged in the one-engine drive state, but the transmission of power is ensured by a clutch or brake built in parallel with this engagement. This shows that it is not necessarily required.

Figures 3 to 5 show one-way clutch F2 and main case 1.
Showing the extra edition with 30.

An outer spline 261 is provided around the outer race 26 of the one-way clutch F2, and is spline-fitted to the inner spline 25 provided on the inner periphery of the main case, and is also bolted to the outer periphery of the case with bolts 2 and formed on the case. A plate spring 1 inserted through a slit 3 is biased in the six directions of arrows, which are the locking directions of the one-way clutch. 4 is a reinforcing plate superimposed on the outer surface of the leaf spring 1 for reinforcement, and 5 is a washer.

The leaf spring 1 has a fastening part IB with a bolt 2, and a fastening part 1B.
an action plate portion 1△ which is extended in one direction and whose tip is bent into a 1-shape, and which, when installed, urges the outer race 26 in the direction of the arrow 6, which is the locking direction of the one-way clutch F2, as shown by 1Δ′; It consists of a locking plate part 1C that extends in the opposite direction to the plate part 1A, is bent to match the outer shape of the case 130, and forms a rotation stopper for the fastening part 1B.

This leaf spring 1 applies a spring load (=J) in the locking direction to the outer race 26 of the one-way clutch F2, and even when the one-way clutch is freely rotating in one direction, the outer race 26 is pressed in the locking direction. Because
No impact is generated at the spline fitting portion even when it is reversed from the free to the lock direction.

Note that the means for biasing the outer race of the one-way clutch in the locking direction may be a spring of another structure other than a leaf spring, or an elastic body such as a rubber plate, or another means for fixing the outer race in one direction. .

As described above, the one-way clutch mounting portion of the transmission of the present invention is
A one-way clutch including a spline formed on a holding member, a spline that engages with the spline on an inner race or an outer race, and means for biasing the race provided with the spline in one direction in a locking direction of the latch. As a result, it is possible to prevent impact generated at the spline fitting portion during the reversal from free to lock.

[Brief explanation of the drawing]

Figure 1 is a sectional view of a vehicle automatic transmission, Figure 2 is an enlarged view of its main parts, Figure 3 is a perspective view of the one-way clutch attachment part of the transmission, Figure 4 is a plan view thereof, and Figure 5. is a side view. Figure 3-201

Claims (1)

[Claims] 1> A one-sided clutch in which a spline formed on a holding member, a spline that engages with the spline in the inner race or outer race is provided, and a means for biasing the race provided with the spline in the locking direction of the one-sided clutch. A one-way latch phrase part of a transmission consisting of.