KR960016044B1 - Hydraulic system of the feed-stuff transporting cargo - Google Patents

Abstract

The system is designed to discharge animal food fluently with a circuit for rotating only a vertical screw and a discharging screw. The system includes : an oil tank (40); a drive shaft (44) for driving an oil pump (42); a control section (48); a pair of check valves (70, 72) connected between a screw control valve (47) and a fluctuation cylinder control valve (46); a stop valve (76) for blocking oil flow; a discharge orbit motor (59); a vertical orbit motor (56); a bottom orbit motor (53); and an actuator section (49).

Description

Hydraulic system of feed carrier

1 is a perspective view of a feed vehicle,

2 is a hydraulic circuit diagram of a conventional feed vehicle,

3 (a) is a hydraulic circuit diagram of a feed vehicle according to the present invention, the hydraulic flow diagram when only the hydraulic pump is driven,

(B) shows the hydraulic flow rate when switching the relief cylinder control valve to the 'gi' position.

(C) the hydraulic flow rate at feed discharge,

(D) shows the hydraulic flow chart for reversing only vertical and discharge screws;

(E) is the hydraulic flow chart at the time of forward rotation of vertical and discharge screw only.

* Explanation of symbols for main parts of the drawings

40: oil tank 41: slew valve

42,42 ': Oil pump 43,43': Relief valve

44: drive shaft 45: pressure source

46: relief cylinder control valve 47: screw control valve

48: control unit 49: actuator unit

50: feed tank 51: manhole cover

52: bottom screw 53: bottom orbit motor

54: vertical screw 55: vertical tube

56: vertical orbit motor 57: discharge screw

58: discharge tube 59: discharge orbit motor

60: relief cylinder 70: check valve

72: check valve 74: check valve

76: stop valve 100: feed carrier

The present invention relates to a hydraulic system of the feed vehicle, in particular, when the feed is discharged vertical screw and the discharge screw is clogged to configure the circuit to rotate only the vertical screw and the discharge screw forward and reverse to easily feed the feed It relates to a hydraulic system of a feed carrier that enables the discharge of clogged feed without loss of food.

In general, the feed carrier 100 is configured as shown in Figure 1, the feed tank 50 placed in the rear of the vehicle is covered with a manhole cover 51 on the upper portion thereof to open and close the powder feed It is carried in the loading, the bottom screw 52 is built in the feed tank 50 to discharge the feed loaded in the feed tank 50, the bottom orbit motor 53 for rotating the bottom screw 52 is It is installed at the rear end, the feed conveyed by the bottom screw 52 is discharged by the discharge screw 57 is discharged to the discharge tube 58 is installed through the vertical tube 55, the vertical screw 54 is installed. At the lower end of the vertical screw 54 and one end of the discharge screw 57, the respective vertical and discharge orbit motors 56 and 59 for driving thereof are attached.

The hydraulic circuit of the feed vehicle 100 is as shown in Figure 2, this hydraulic circuit is a bottom orbit motor for driving the bottom screw 52 through the slew valve 41 in the oil tank (40) The hydraulic line for the hydraulic line for the 53 and the vertical orbital motor 56 for driving the vertical screw 54 and the hydraulic line for the discharge orbital motor 59 for driving the discharge screw 57 and the hydraulic line of the relief cylinder 60 are separately. It is composed of complicated circuits, and two oil pumps (42, 42 ') and relief valves (43, 43') are attached so that the hydraulic piping is complicated, and expensive components are used repeatedly, which makes management cost expensive. As the end of the circuit has been closed, and as shown in the circuit configuration, the forward and reverse rotation of only the vertical screw 54 and the discharge screw 57 is impossible, and the bottom screw 52 also rotates together so that the vertical and discharge screws ( In the case of feed blockage, Opening the outlet window of the screw (54,57) according to Sikkim release to the station has been a closed end that is a loss of feed occurs.

It is an object of the present invention to eliminate the closed end of the conventional feed carrier hydraulic system as described above, consisting of only a minimum of hydraulic functional parts can be used for the maximum use, simple operation, without using any additional parts It is to provide a means for facilitating the discharge of clogged feed by allowing only vertical and discharge screws to be rotated forward and backward.

In order to achieve the above object, the present invention provides a feed carrier comprising a pressure source part consisting of an oil tank and an oil pump, a control part consisting of a relief cylinder control valve and a screw control valve, and an actuator part consisting of a relief cylinder and three orbit motors. To provide hydraulic system.

The pressure source is the oil pump is driven by the drive shaft to send hydraulic pressure to the pressure cylinder of the relief cylinder control valve and screw control valve, and the control cylinder appropriately switch between the relief cylinder control valve and the screw control valve, the relief cylinder and three orbits The motor can be controlled to perform the desired task.

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

In the hydraulic system of the feed vehicle, the control unit 48 includes a pressure source part 45 consisting of an oil tank 40 and an oil pump 42, a relief cylinder control valve 46, and a screw control valve 47. And an actuator unit 49 consisting of one relief cylinder 60 and three orbit motors 53, 56, and 59.

The pressure source part 45 is driven by the drive shaft 44. In addition, the relief cylinder control valve 46 and the screw control valve 47 of the control unit 48 employs a three-position manual switching valve, and the control unit 48 has one relief valve 43 and two check valves ( 70, 72).

Hydraulic pressure is supplied from the oil pump 42 of the pressure source part 45 to the relief cylinder control valve 46 of the control part 48 and the pressure port P of the screw control valve 47 through the check valves 70 and 72. The hydraulic cylinder 60 of the actuator unit 49 is connected to the hydraulic line via the stop valve 76 in the operating unit A of the relief cylinder control valve 46 of the control unit 48, and the actuator unit ( The discharge orbit motor 59, the vertical orbit motor 56, and the bottom orbit motor 53 of 49 are connected in series to supply hydraulic pressure from the operating portion A of the screw control valve 47 of the controller 48. The check valve 74 is connected between the vertical orbit motor 56 and the bottom orbit motor 53, and a relief valve 43 ′ is connected between the vertical orbit motor 56 and the oil tank 40.

3 (a) is a hydraulic circuit diagram showing the hydraulic system of the feed vehicle according to the present invention, the pressure source portion 45 consisting of an oil pump 40 driven by the oil tank 40 and the drive shaft 44 Is formed, the hydraulic pressure is supplied from the pressure source unit 45 to the control unit 48 consisting of the relief cylinder control valve 46 and the screw control valve 47 and the actuator unit 49, that is, the relief cylinder from the control unit 48 A circuit is connected to the 60 and three orbit motors 53, 56, and 59 to switch both valves 46 and 47 of the controller 48 to operate the actuator unit 49.

Hereinafter will be described the operation and effect of the present invention.

First, the feeding process is explained in order.

First, when the PTO connection is made in the cab, the drive shaft 44 drives the oil pump 42, and the hydraulic pressure flows in the direction of the arrow as shown in FIG. Since both valves 46 and 47 of the control unit 48 are in a neutral position, the relief cylinder 60 and the three orbit motors 53, 56 and 59 are not operated.

Then, in order to drive the relief cylinder 60 to raise the discharge tube 58 to the required height, the stop valve 76 is set to 'open', and then the relief cylinder control valve 46 is turned to FIG. When switching to the 'gi' position as shown in b), the hydraulic pressure is supplied in the direction of the arrow, the discharge tube 58 is raised by the expansion of the relief cylinder 60.

In order to lower the discharge tube 58, the relief cylinder control valve 46 may be placed in the 'bok' position. To fix the discharge tube 58 at the required height, the relief cylinder control valve 46 may be moved in the 'neutral' position. Switch over and place the stop valve 76 in the 'closed' position.

After raising and fixing the discharge tube 58 to the required height, as shown in FIG. 3 (C), the screw control valve 47 is switched to the 'discharge' position, and then the shutter in the feed tank 50 is opened. The hydraulic pressure is supplied in the direction of the arrow so that the three orbit motors 53, 56, and 59 drive the three screws 52, 54, and 57, respectively, to discharge the feed. When pausing while discharging the feed it is necessary to switch the screw control valve 47 to the 'neutral' position.

In addition, in the event of clogging of feed due to foreign matter caught between the vertical and discharge screws (54, 57) and the vertical and discharge tubes (55, 58) during discharge, the relief cylinder control valve as shown in FIG. Switch 46 to the 'neutral' position and set the screw control valve 47 to the 'reverse' position. Hydraulic pressure is supplied in the direction of the arrow so that the bottom screw 52 is not rotated and the vertical and discharge screws 54, 57 ) Will only reverse.

To rotate the vertical and discharge screws 54 and 57 forward, close the stop valve 76 as shown in FIG. 3 (e), and then switch the relief cylinder control valve 46 to the 'return' position and screw When the control valve 47 is switched to the 'discharge' position, the hydraulic pressure is supplied in the direction of the arrow so that only the vertical and discharge screws 54 and 57 rotate forward.

As described above, in the hydraulic system of the feed vehicle according to the present invention, by using a combination of the relief cylinder control valve 46 and the screw control valve 47 of the control unit 48, the vertical and discharge screws 54, 57 only. It is possible to reverse rotation, so that if the blockage of the feed occurs, it can effectively discharge the blocked feed without losing the feed, and the hydraulic system is simple to make the production cost is low, and its operation and operation is simple. It also has the effect of reducing the cost of maintenance.

Claims (2)

In the hydraulic system of the feed vehicle, the oil pump 42 is driven by the drive shaft 44 from the oil tank 40 to form a pressure source portion 45 consisting of sending oil to the control unit 48, The control unit 48 is configured such that a pair of check valves 70 and 72 are connected between the screw control valve 47 and the relief cylinder control valve 46 to flow the hydraulic flow in only one direction, and the control unit 48 And a stop valve 76 for transmitting and blocking the flow of hydraulic pressure between the relief cylinder 60 of the actuator unit 49 and the discharge orbit motor 59 of the control unit 48 and the actuator unit 49, Vertical orbit motor 56, the bottom orbit motor 53, the circuit is connected to the hydraulic system of the feed carrier, characterized in that the configuration is configured. The oil pressure is supplied from the oil pump 42 of the pressure source part 45 to the relief cylinder control valve 46 of the control part 48 and the pressure port P of the screw control valve 47, The actuator Relief cylinder 60 of the unit 49 is connected to the hydraulic line via the stop valve 76 in the operating portion (A) of the relief cylinder control valve 46 of the control unit 48, the actuator of the 49 The discharge orbit motor 59, the vertical orbit motor 56, and the bottom orbit motor 53 are connected in series to supply hydraulic pressure from the operating portion A of the screw control valve 47 of the controller 48. Feed valve, characterized in that the check valve 74 is connected between the motor 56 and the bottom orbit motor 53, the relief valve 43 is connected between the vertical orbit motor 56 and the oil tank (40). Hydraulic system of the truck.