KR100426539B1 - Continuously variable transmission - Google Patents

Abstract

The present invention connects the rotary pump connecting the input shaft and the output shaft with the plunger pump operated by the operation of the shift lever, the pressure of the oil filled in the rotary pump by the operation of the shift lever through the plunger pump to shift the shock The present invention relates to a continuously variable transmission for the purpose of maintaining a load or no load state capable of moving forward and backward without a load. The present invention relates to a wheel that is rotated with an input shaft, an output shaft having a output gear, and a periodic gear built into the wheel. A rotary pump consisting of planetary gears which are held in the wheel and hold the main gears and the planetary gears; A valve housing made of a valve housing fixed to the wheel so that the output shaft penetrates therein, and a valve mechanism fixed to the speed change box in the valve housing; A plunger plate having a plurality of cylinders interviewed with the valve port and fixed to the valve housing, a piston entering the cylinder of the plunger plate, a rotating plate connected to the piston by a hinge plate, and a rotating plate supported by the rotating ball. A plunger pump comprising a fixed plate fixed to the shift lever so as to be freely moved forward and backward, and the gear plate, the valve mechanism, and the like to increase the pressure of the oil in the rotary pump through the plunger pump by the operation of the shift lever to control the power. It is characterized by forming an oil path for communicating the valve housing and the cylinders.

Description

Continuously variable transmission {.}

The present invention connects the plunger pump operated by the operation of the rotary pump and the shift lever connecting the input shaft and the output shaft, the pressure of the oil filled in the rotary pump by the operation of the shift lever through the plunger pump to shift the shock The present invention relates to a continuously variable transmission that maintains a load or no load state capable of moving forward and backward without a load.

In general, the transmission has a function of changing the driving force according to the environment in which the vehicle is driven, that is, the torque between the engine and the driving wheel, and the transmission is equipped with a plurality of gears to change the bite of the driving wheel There are types of manual transmissions that change torque and rotation speed, and automatic transmissions that automatically achieve clutch action and mission action.

However, the manual transmission is cumbersome to operate, and the conventional automatic transmission uses a torque converter and a fluid coupling, which is structurally expensive and has a problem in that an impact occurs at a shift point.

Accordingly, the present invention was created to solve the above problems, by connecting a rotary pump connecting the input shaft and the output shaft with the plunger pump operated by the operation of the shift lever, the pressure of the oil filled in the rotary pump It is an object of the present invention to provide a continuously variable transmission in which a load or no load state capable of moving forward and backward without shift shock is increased and decreased by manipulating a shift lever through a plunger pump.

The present invention for realizing the above object, the wheel is provided with both the input shaft and the receiving groove on both sides of the rotation, and the output gear having a main gear embedded in the wheel and the main gear is kept in a state in which the main gear is engaged in the built-in wheel A rotary pump made of a planetary gear, a gear plate having gear balls having a partition wall which communicates between the main gear and the planetary gears and blocks the planetary gears; A valve means formed of a valve housing fixed to a wheel so as to penetrate the output shaft by forming a concave groove on one side, and a valve mechanism fixed to a transmission box in a state in which the concave groove is bisected and fixed to the shift box; A plunger plate secured to the valve housing by having a plurality of cylinders interviewed with the valve port, a piston entering the cylinder of the plunger plate, a slide plate connected to the piston by a hinge, and slide grooves so that the slide plate slides up and down. And a plunger pump composed of a rotating plate and a fixed plate fixed to the shift lever so as to be free to move forward and backward while being supported by the rotating ball on the rotating plate, and by operating the shift lever, the pressure of the oil in the rotary pump through the plunger pump increases To form the first oil groove on one side of the separation wall of the gear plate and to form a second oil groove having a relatively small volume relative to the first oil groove on the other side, Forming an incision surface in communication with some of the cylinders on one side and an oil hole in communication with the remaining cylinders on the other side, A first oil path is formed in the housing to communicate with the first oil groove and the cylinder through the oil hole on one side of the valve port, and the second oil communicates with the second oil groove and the cylinder through the incision surface on the other side. The furnace is formed to have a characteristic configuration.

Pressure reducing tank in which oil flows in order to achieve a reduced pressure for easy operation of the shift lever, a pressure reducing piston entering the pressure reducing tank, a pressure reducing slide plate connected to the pressure reducing piston by a hinge, and a pressure reducing slide plate fixed on the fixed plate so as to slide up and down. A pressure reducing slide groove is formed, and the first oil pipe and the second oil pipe are installed on both sides of the pressure reducing tank to communicate with each other through the cutout and the oil hole.

The check valve is installed in the pressure reducing tank in communication with the first oil pipe and the second oil pipe, the check valve is characterized in that the connection between the oil filling tank and the filling tube to maintain a constant pressure in the pressure reducing tank.

1 to 3 are cross-sectional views showing the configuration and use of the transmission according to the present invention.

1 is a side view of a load state in which power is transmitted;

2 is a side view of a neutral no-load state in which power is not transmitted;

3 is a plan sectional view of a non-load state,

4 and 5 are front views showing the configuration and use of the gear system connecting the input shaft and the output shaft applied to the transmission of the present invention,

4 is a rear view of a load state;

5 is a rear view of the no-load state,

6 is a perspective view showing the configuration of a wheel that accommodates the gear system of the present invention;

7 and 8 are a front view and a rear view showing the configuration of the gear plate embedded in the wheel in the state accommodating the gear system,

Figure 9 is a cross-sectional perspective view showing the configuration of the valve housing, the valve, the plunger plate to be sequentially mounted on the wheel of the present invention to form a transport path of oil,

10 is a front view of the valve housing;

11 is a perspective view showing the configuration of a valve;

12 is a front view of the plunger plate.

Explanation of symbols on the main parts of the drawings

102: shift lever 110: wheel 111: input shaft

120: gear plate 121: main gear 122: planetary gear

123: output shaft 126: the first oil groove 127: the second oil groove

130: valve housing 133: the first oil furnace 134: the second oil furnace

140: valve port 142: cutting end 143: oil hole

150: plunger plate 151: cylinder 160: piston

180: rotating plate 190: fixed plate 200: decompression tank

210: decompression piston 230: 1st oil pipe 240: 2nd oil pipe

300: check valve 310: filling tank

Hereinafter, with reference to Figures 1 to 12 attached to an embodiment of the present invention will be described in detail.

In the drawings, the present invention includes an input shaft 111 and a receiving groove 112 on both sides of the wheel 110 rotated, the output shaft 123 is provided with a main gear 121 embedded in the wheel 110 and The main gear 121 is engaged with the planetary gears 122 embedded in the wheel 110 by maintaining a predetermined interval, and the main gear 121 and the planetary gears 122 as shown in FIGS. 7 and 8. It is equipped with a rotary pump consisting of a gear plate 120 formed of gear holes 124 having a separation wall 125 that communicates with and blocks the planetary gears 122. The planetary gears 122 have a front projection. And a projection groove 113 into which the shaft projection 128 of the planetary gear 122 is inserted, as shown in FIG. In addition, the gear plate 120 forms a first oil groove 126 on one side of the separation wall 125 and a second oil groove having a relatively small volume relative to the first oil groove 126 on the other side. 127).

In addition, the recess groove 132 is formed at one side, and the valve housing 130 is fixed to the wheel 110 so that the output shaft 123 penetrates, and the recess groove 132 is built in the recess groove 132 of the valve housing 130. ) Is provided with a valve means consisting of a valve port 140 which is supported and fixed to the transmission box 101 by a fixed pipe 144 in a divided state. The cylinders 151 on one surface of the circumferential surface of the valve port 140. In addition to forming a cut surface 141 in communication with some of the oil hole 143 to communicate with the remaining cylinder 151 on the other surface. In addition, forming a first oil path 133 in communication with the first oil groove 126 and the cylinder 151 through the oil hole 143 on one side of the valve housing 130 in the valve housing 140 and In addition, a second oil passage 134 communicating with the second oil groove 127 and the cylinder 151 through the incision surface 141 is formed on the other side. The valve port 140 is fixed to the transmission box 101. The fixed tube is formed by forming a flange at both ends and fastening the flange with a screw, but is not limited thereto. In addition, a cut end 142 is formed on one surface of the valve port so that the valve housing and the space 135 are formed.

In addition, a plunger plate 150 having a plurality of cylinders 151 interviewed with the valve port 140 and fixed to the valve housing 130, and a piston 160 entering the cylinder 151 of the plunger plate 150. ), A slide plate 171 connected to the piston 160 by a hinge 172, a rotating plate 180 formed with respective slide grooves 181 so that the slide plate 171 slides up and down, The rotating plate 180 is provided with a plunger pump including a fixed plate 190 fixed to the shift lever 102 so as to be freely moved forward and backward while being supported by the rotating ball 191.

Meanwhile, the pressure reducing tank 200 in which oil is pumped out to achieve a reduced pressure for easy operation of the shift lever 102, the pressure reducing piston 210 entering the pressure reducing tank 200, and the hinge 172 on the pressure reducing piston 210 are provided. The pressure reducing slide plate 220 and the pressure reducing slide plate 220 connected to each other to form a pressure reducing slide groove 192 in the fixed plate 190 so as to slide up and down, respectively, valves ( The first oil pipe 230 and the second oil pipe 240 communicating with the cut surface 141 and the oil hole 143 of the 140 are installed.

In addition, the check valve 300 is installed in the decompression tank 200 in communication with the first oil pipe 230 and the second oil pipe 240, and the check valve 300 is an oil filling tank 310 and a filling pipe. Is connected to 312 is characterized in that to maintain a constant pressure in the pressure reduction tank 200.

Referring to the operation of the present invention by the above configuration as follows.

First, FIG. 1 shows that the shift lever 102 is in a position of a load state, in which the oil is filled in the gear plate 120, whereby the oil pressure between the main gear 121 and the planetary gears 122 is changed. In this case, the wheel 110 is rotated by the input shaft 111, and the main gear 121, the planetary gear 122, and the gear plate 120 are integrally rotated as shown in FIG. Thus, the output shaft 123 provided in the main gear 121 rotates to maintain the load state. At this time, since the valve housing 130 and the rotating plate 180 rotate in the same manner, the oil pressure in the gear plate 120 embedded in the wheel 110 is kept constant in the pressure state.

When the shift lever 102 is pulled to have an inclination angle as shown in FIG. 2, the oil amount and the pressure difference in the gear plate 120 are generated.

That is, when the shift lever 102 is pulled at a predetermined angle, the fixed plate 190 and the rotating plate 180 form an inclined angle at a predetermined angle, and are pulled or pushed between the pistons 160 by this inclined angle.

Therefore, as shown in FIGS. 2 and 3, oil filled in the first oil groove 126 of the gear plate 120 is cut through the first oil path 133 and the valve port 140 of the valve housing 130. The piston 160 pulled through the 141 is sucked into the cylinder 151 entered, and the valve 160 in the cylinder 151 into which the piston 160 pushed into the second oil groove 127 of the gear plate 120 enters the valve. The pressure is reduced while entering through the oil hole 143 of the sphere 140 and the second oil passage 134 of the valve housing 130. At this time, the oil is guided by the space 135 formed in the cut end 142 of the valve mechanism.

Thus, as shown in FIG. 5, the planetary gear 122 is rotated, but the main gear 121 is not rotated to maintain no load, that is, a neutral state.

In addition, a pressure reducing pump operates on the flow path of the oil.

That is, according to the inclination angle of the fixed plate 190 and the rotating plate 180, the oil in the pressure reducing pump as the piston 160 is pushed to the oil hole 143 of the valve port 140 through the second oil pipe 240 Along with being discharged, the oil having a flow to the cut surface 141 of the valve port 140 through the first oil pipe 230 flows into the decompression tank 200 and pressurizes the decompression piston 210, thereby fixing plate 190. By having a resistance to the pressure applied to the shift lever 102 through, it becomes easy to operate the shift lever 102.

On the other hand, when the shift lever 102 is pulled in the neutral state of the shift lever 102, the planetary gear enters the first oil groove 126 relative to the amount of oil exiting from the first oil groove 126. By increasing the rotation force of the 122, as shown by the dotted arrow in Figure 5, the main gear 121 is rotated in the reverse direction with respect to the planetary gear to maintain the power transmitted to the drive wheels in the reverse state.

In addition, the amount of oil consumed to maintain the set amount of oil and pressure in the path of the oil is supplied from the oil filling tank 310 intermittent to the check valve (300).

The present invention connects the rotary pump connecting the input shaft and the output shaft with the plunger pump operated by the operation of the shift lever, thereby increasing and decreasing the pressure of the oil filled in the rotary pump by the operation of the shift lever through the plunger pump. Shifting shocks are eliminated in the process of maintaining a possible load or no load, as well as a structurally simple effect.

Claims (3)

A wheel 110 mounted to the transmission box 101 and having input shafts 111 and receiving grooves 112 formed at both sides thereof; The main gear 121 having the output shaft 123 in the body and inserted into the receiving groove 112 and inserted into the projection groove 113 of the wheel 110 are coupled to the gear train of the main gear 121. A gear hole 124 accommodating the planetary gears 122, a dividing wall 125 for blocking the planetary gears 122, and a 1.2 oil groove 126.127 formed at both sides of the dividing wall 125; A driving means composed of a gear plate (120) provided; The second oil furnace which is fixed to the receiving groove 112 of the wheel 110 and communicates with the inlet groove 132 through which the output shaft 123 of the main gear 121 passes and the 1.2 oil groove 126.127. 133. 134 is formed in the valve housing 130 and the oil hole 143 and the second oil furnace 134 which are fixed to the recess groove 132 and communicate with the first oil furnace 133 on both sides of the body. Dispensing means consisting of a valve port 140 each formed in communication with the incision surface 141; A plurality of cylinders 151 are fixed to the side of the valve housing 130 along the forming direction of the incision surface 141 and communicate with the first oil passage 133 or the second oil passage 134 in the body thereof. Plunger plate 150 and the fixed plate 190 which is mounted to the side of the plunger plate 150 to rotate around the rotation point during the operation of the shift lever 102, and is mounted to the side of the fixing plate 190 An operating means consisting of a rotating plate 180 fixed through the rotating ball 191 and a piston 160 connected via a hinge 172 to the sliding plate 171 sliding along the sliding groove of the rotating plate 180; ; Decompression tank (200) mounted in the speed change box (101) and the oil pressure is adjusted through the check valve 300, and the decompression piston (210) installed on the side of the decompression tank (200) and float in accordance with the oil pressure and , The pressure reduction slide plate 220 connected to the pressure reduction piston 210 through the hinge 172 and sliding along the pressure reduction slide groove 192 of the fixed plate 190, and the filling tank while communicating with the pressure reduction tank 200. The first oil pipe 230 and the second oil pipe (310) are connected through the filling tube 312 and supply the oil toward the incision surface 141 or the oil hole 143 of the valve port 140, respectively ( Decompression means consisting of 240; Continuously variable transmission characterized in that the configuration. delete delete