KR100551292B1 - Connective structure of torque converter and drive plate - Google Patents

Abstract

The disclosed torque converter and drive plate coupling structure is installed between the engine and the automatic transmission of the vehicle, and connects the engine and the automatic transmission, and transmits the rotational power output from the engine to the automatic transmission. A drive plate coupled to a torque converter and a crankshaft of the engine; A bolt for directly coupling the torque converter and the drive plate; A stopper installed on the drive plate to one side of the bolt to transmit power when the engine rotates and to allow the torque converter to rotate in the rotational direction of the engine by one step manually by a predetermined amount of force; A bush installed between the bolt and the drive plate to allow the drive plate and the torque converter to perform relative movement; And rotating means installed on one side of the torque converter to apply a constant force to the torque converter to rotate in the rotational direction of the engine. According to the present invention, it is possible to work in the production plant of the engine, improve the NVH, reduce the exchange of automatic transmission, there is an advantage that can reduce the service working time.

Drive Plate, Torque Converter, Automatic Transmission

Description

CONNECTIVE STRUCTURE OF TORQUE CONVERTER AND DRIVE PLATE}

1 is a view schematically showing the configuration of a general torque converter and drive plate coupling structure.

Figure 2 schematically shows the configuration of the torque converter and drive plate coupling structure according to the present invention.

3 is a cross-sectional view taken along the line A-A in FIG.

4 is a cross-sectional view taken along the line B-B in FIG.

5 is a cross-sectional view taken along the line C-C in FIG.

<Description of the symbols for the main parts of the drawings>

10. Torque Converter

11. Rotating groove

20. Drive plate

21.Front Plate

22. Back plate

23. Slot

31.bolts

32. Stopper

33. Bush

34. Spring

35. Push pin

The present invention relates to a torque converter and drive plate coupling structure, and more particularly, to a torque converter and drive plate coupling structure for improving noise vibration harness (NVH).

In general, an automatic transmission of a vehicle is composed of a torque converter, a transmission gear mechanism connected to the torque converter, and a hydraulic control circuit for selectively operating a gear of the transmission gear mechanism in accordance with the driving state of the vehicle.

The torque converter includes an impeller that is directly connected to the crankshaft of the engine and rotates, a turbine that is directly connected to the input and output of the automatic transmission and is opposed to the impeller, and transfers and recovers kinetic energy from the impeller within a certain operating range. It is composed of a stator to change the direction of the oil to increase the rotational force of the impeller again.

As such, the output of the engine transmitted to the impeller of the torque converter is transmitted to the transmission gear mechanism through the turbine. The transmission gear mechanism is a planetary gear device composed of a plurality of sun gears, ring gears, and carriers. By proper control, the rotational force supplied from the turbine by the relative motion between the gears is converted into an appropriate transmission ratio and transmitted to the propulsion shaft.

In order to control each gear of the transmission gear mechanism, a plurality of friction members are used. The friction members generally use a front clutch, a rear clutch, a low-reverse brake, an end clutch, and a kickdown brake. , The friction member is operated by the hydraulic pressure generated by the oil pump operated in accordance with the rotation of the engine.

The shifting action of the automatic transmission as described above is a precondition for the rotational force transmitted from the engine to the impeller, and as shown in FIG. 1 to transfer power from the engine to the impeller of the torque converter, the crankshaft of the engine The drive plate 104 which is fastened by bolts 102 to 100 is fastened by three to four bolts 110 arranged circumferentially to the front cover 108 of the torque converter to which the impeller 106 is directly connected. It is a structure.

On the other hand, the rotation center of the engine is optimally designed in consideration of NVH and manufactured to a certain specification. The rotation center of the automatic transmission is also optimally designed and manufactured with constant projection considering NVH. In particular, the torque converter of the automatic transmission is precisely axisymmetric, but after manufacturing, in order to balance the balance due to errors in the manufacturing process, a weight or digging groove for adjusting the balance is used in the inspection process. Also

However, these precisely balanced torque converters, when combined with the engine and mounted on the vehicle, can also produce disadvantageous vehicles in terms of NVH due to subtle differences between vehicles.

These vehicles cause customer dissatisfaction, and it takes a lot of time and money to correct them. In some cases, the entire automatic transmission is replaced. In the current service site, NVH, which has no problem, removes the transmission for the unfavorable vehicle and turns the assembly angle of the torque converter and the drive plate to assemble it, which is good for reducing the NVH, but this is also time-consuming and expensive.

The present invention has been made to solve the above problems, and an object thereof is to provide a torque converter and drive plate coupling structure in which the NVH is reduced by changing the assembling angle of the torque converter without removing the automatic transmission.

Torque converter and drive plate coupling structure of the present invention for achieving the above object is provided between the engine and the automatic transmission of the vehicle to connect the engine and the automatic transmission, the rotational power output from the engine is A drive plate fastened to the torque converter of the automatic transmission and the crankshaft of the engine for transmission to the automatic transmission; A bolt for directly coupling the torque converter and the drive plate; A stopper installed on the drive plate to one side of the bolt to transmit power when the engine rotates and to allow the torque converter to rotate in the rotational direction of the engine by one step manually by a predetermined amount of force; A bush installed between the bolt and the drive plate to allow the drive plate and the torque converter to perform relative movement; And rotating means installed on one side of the torque converter to apply a constant force to the torque converter to rotate in the rotational direction of the engine.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a block diagram schematically showing the configuration of the torque converter and drive plate coupling structure according to the present invention.

Referring to the drawings, the torque converter and the drive plate coupling structure according to the present invention is installed between the engine of the vehicle and the automatic transmission to connect the engine and the automatic transmission, and transmits the rotational power output from the engine to the automatic transmission. And a drive plate 20 fastened to the torque converter 10 of the automatic transmission and the crankshaft of the engine, and a bolt 31 directly connecting the torque converter 10 and the drive plate 20 to each other. .

In addition, the torque converter and the drive plate coupling structure according to the present invention transmits power when the engine rotates, so that the torque converter 10 can be manually rotated in the engine rotation direction by one step by a certain amount of force. One side of the bolt 31 is provided with a stopper 32 installed on the drive plate 20 and between the bolt 31 and the drive plate 20, the drive plate 20 and the torque converter 10. And a rotation means installed at one side of the torque converter 10 to rotate in the direction of rotation of the engine by applying a constant force to the torque converter 10. .

The drive plate 20 includes a front plate 21 and a rear plate 22 disposed on the rear surface of the front plate 21 and directly fastened and coupled by the bolt 31. In addition, four slots 23 are formed in the front plate 21 and the rear plate 22 at a predetermined angle to fasten the bolt 31.

In addition, the stopper 32 is installed on the rear plate 22 of the drive plate 20 formed of a double plate, and the stopper 32 has a rear side as shown in FIG. 5 for a return operation. The spring 34 is installed on one side of the plate 22. In addition, the stopper 32 is installed by a fixing pin 35 fastened through the side thereof.

And the rotation means, as shown in Figure 2, consists of a rotary groove 11 formed on one side of the torque converter 10.

Referring to the operation of the torque converter and drive plate coupling structure according to the present invention having the configuration as described above are as follows.

Referring again to the drawings, first, the power transmission path of the engine in the torque converter and drive plate coupling structure according to the present invention is as follows. When rotational power is generated in the crankshaft of the engine, it is transmitted to the rear plate 22 of the drive plate 20 connected thereto. At this time, it is transmitted to the stopper 32 installed on the rear plate 22, and this power is transmitted to the bolt 31 fastening structure.

In addition, the fixing pin 35 forms a pivot point of the stopper 32 to receive power when the engine is driven as described above, and the torque converter 10 is manually moved in the direction of rotation of the engine by one step. To be rotated and returned by the spring 34. At this time, the rotation of the torque converter 10 is inserted into the grooves 11 for rotation of the torque converter 10 by using an auxiliary device such as a rod by the operator to rotate the engine with a constant force. In the direction of rotation.

And the drive plate 20 consisting of the two plates is not relative movement because it is integrally coupled by the bolt (31).

As described above, the present invention can change the assembling angle of the torque converter 10 without removing the automatic transmission.

As described above, the torque converter and the drive plate coupling structure according to the present invention have the following effects.

It is possible to work in the engine's production plant, improve NVH, reduce the transmission of automatic transmissions, and reduce the service time.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent embodiments are possible. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

Claims (6)

It is installed between the engine of the vehicle and the automatic transmission and connects the engine and the automatic transmission, and is fastened to the torque converter of the automatic transmission and the crankshaft of the engine in order to transfer the rotational power output from the engine to the automatic transmission. Drive plate; A bolt for directly coupling the torque converter and the drive plate; A stopper installed on the drive plate to one side of the bolt to transmit power when the engine rotates and to allow the torque converter to rotate in the rotational direction of the engine by one step manually by a predetermined amount of force; A bush installed between the bolt and the drive plate to allow the drive plate and the torque converter to perform relative movement; And rotation means installed on one side of the torque converter to apply a predetermined force to the torque converter to rotate in the rotational direction of the engine. The method of claim 1, The drive plate, Torque converter and drive plate coupling structure comprising a front plate and a rear plate disposed on the rear of the front plate and coupled directly by the bolt. The method of claim 2, Torque converter and drive plate coupling structure characterized in that the front and rear plates are formed with four slots at a predetermined angle to the bolt is fastened. The method of claim 2, The stopper is installed on the back plate, and the torque converter and drive plate coupling structure, characterized in that the spring is installed on one side of the back plate for the stopper to return operation. The method of claim 1, The stopper is coupled to the torque converter and drive plate, characterized in that installed by the fixing pin fastened to the side thereof. The method of claim 1, The rotating means, Torque converter and drive plate coupling structure, characterized in that consisting of a rotary groove formed on one side of the torque converter.

Images