JPS59176130A - Powdery granule transport car - Google Patents

Abstract

PURPOSE:To make one tractor alone accommodable to plural trailers different in each discharge system, by installing plural hydraulic pumps at the side of a tractor. CONSTITUTION:In time of discharge at an elevated spot, each of pipe joints A, B, C and D is set up at both discharge side and suction side end parts of each of hydraulic pumps 10 and 11, and furthermore, pipe joints E and F are set up at the suction side of the hydraulic pump 10 in parallel with the pipe joint D. With the operation of a selector valve 17, hydraulic motors 20 and 21 are reversed with each other in rotation, while a cylinder rises or falls by the operation of a selector valve 19. In time of chuting discharge, the pipe joint B at the discharge side and the pipe joint C at the suction side of the hydraulic pump 11 are connected to these pipe joints E and F of the hydraulic pump 10 respectively. In addition, a pipe joint (a)' installed in the end part of a high pressure main pipe 14' and a pipe joint (d)' in stalled in the end part of a low pressure main pipe 15' at the side of a trailer 2 are connected to the pipe joint A at the discharge side and the pipe joint D at the suction side, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a powder transport vehicle, and more particularly, a plurality of trailers with different discharge methods are selectively connected to a single tractor equipped with a plurality of hydraulic pumps, and a plurality of trailers with different discharge methods are selectively connected to one tractor equipped with a plurality of hydraulic pumps. It is designed to transport and discharge powder and granular materials in accordance with the above.

Generally, in order to reduce transportation costs, powder and granule transport vehicles that use tractors and trailers to transport large quantities of powder and granules are equipped with a hydraulic pump on the tractor side, and a hydraulic pump on the trailer side. A screw conveyor is driven via a hydraulic motor connected to a hydraulic pump on the tractor side to discharge the powder and granules in the storage tank mounted on the single deck to the outside.

By the way, there are two ways to discharge powder and granules from a storage tank mounted on the trailer: one is to discharge it to an elevated location such as a silo (hereinafter referred to as "high-place lid discharge"), and the other is to discharge it to the ground such as underground equipment (hereinafter referred to as "drop-in discharge"). There is something called "exhaust". Therefore, the number of screw drive hydraulic motors changes in response to these different discharge methods, resulting in an excess or deficiency in the discharge volume of the hydraulic pump installed on the tractor side. The drawback was that a tractor equipped with a hydraulic pump whose discharge amount was set according to the discharge method had to be prepared.

The present invention has been made in view of the above points, and is configured such that a plurality of hydraulic pumps are provided on the tractor side, and the discharge side of one hydraulic pump is connected to the suction side of the other hydraulic pump several times depending on the discharge method. However, one tractor can handle a number of trailers with different discharge methods.

Below, the embodiments of the invention will be explained based on the first page.
In the figure, reference numeral 1 denotes a tractor equipped with an engine and a plurality of hydraulic pumps, which will be described later. A coupler 3 is provided at the rear of the tractor 1, so that a trailer 2 can be connected and towed as needed. On the other hand, a powder storage tank 5 is mounted on the frame 4 of the trailer 2 towed by the tractor 1, and two different discharge methods are set for the storage tank 5 depending on the customer's specifications. ing. That is, as shown in FIG. 1, the storage tank 51 that allows local discharge is provided with a bottom screw 6F6R over the entire length of the bottom of the storage tank.
A vertical screw 7 for upward conveyance is connected to the rear ends of the bottom screws 6F and 6R, and a discharge screw 8 is connected to the vertical screw 7 to stop the discharge, and the discharge screw 8 has rotation marks in both the vertical and horizontal directions. These screw groups are driven by a hydraulic motor, which will be described later.
The powder and granules are discharged into a silo, etc.

On the other hand, as shown in Figure 2, the accommodation tank 52 that allows for downward discharge has only bottom screws 6F and 6R disposed over the entire length of the acid section of the accommodation tank, not shown at the rear end of the tank.
The discharge valve is configured such that it can be opened and closed automatically by a shutter, and the bottom screws 6F and 6R are driven by a hydraulic motor, which will be described later, to discharge the discharge underground.

Next, we will discuss the hydraulic circuit for high-place discharge and fallen discharge in Chapter 6.
To explain with reference to Figs. 4 and 4, Fig. 6 shows a sparse hydraulic circuit connecting the storage tank 51 and the tractor 1, which enable high-place discharge. Only nine stones are in the trailer 21j (the same applies to FIG. 4, which will be described later). Tractor 11! II is provided with dual pressure pumps 10 and 11 that produce a pressure of 1 and 200 m, and are driven simultaneously by an engine (not shown), as well as the discharge per 1 rotation of the hydraulic pump 10. The amount is set to be large compared to that of the hydraulic pump 11.

The discharge side end and suction side 1 of each hydraulic pump 1L), 11 are provided with U handles A, B, and O, respectively.

D' is arranged, and furthermore, W is arranged at the suction of the hydraulic motor 10.
Joints E and F are placed in parallel with the joint.

By the way, the trailer 2] Shinji has the discharge side pipe joint 1000 and the long λ7. The four joints a that can be connected are facing each other, and the pressure oil from the hydraulic pump 10 is transferred to the switching valve 17.19 via the pressure main/total 16. 'A in series: jj
The hydraulic motor 20 for the discharge screw 8 and the hydraulic motor 21 for the vertical screw 7 rotate forward and backward, and on the other hand, the undulation cylinder 24 that controls the undulation angle of the discharge screw 8 is extended and contracted by switching the switching valve 19.

Further, on the trailer 2 side, there is a fitting that can be connected to the discharge 1j pipe fitting B of the hydraulic pump 11, and the pressure oil from the hydraulic pump 11 can be supplied to the switching valve 18 via the high-pressure main pipe 14. , cut? 8, the hydraulic motors 22 and 23 for the bottom screws 6R and 61F rotate forward.

In addition, 12 is an oil reservoir provided on the trailer 2 side, and pipe fittings d and C connectable to the suction side pipe fittings and O of the hydraulic pumps 10 and 11 are facing each other, and are connected to the low-pressure main pipes 16 and 11, respectively. 15 and is connected to the oil reservoir 12 through L7.

Next, the hydraulic circuit when the storage tank 52 and the tractor 1 are connected to each other, which enables drop discharge, will be explained with reference to FIG.
First, connect the discharge side pipe joint B and suction side pipe joint 0 of the hydraulic pump 11 to the suction side pipe joints E and F of the hydraulic pump 10, respectively, and then connect the discharge side pipe joint B and suction side pipe joint 0 of the hydraulic pump 10 to the discharge side pipe joint B and suction side pipe joint 0, respectively. , Trailer 2I! ! l high pressure main pipe 14'
Connect the pipe fitting a″ installed at the end of the pipe and the pipe fitting d’ installed at the low-pressure main #15′ end. At this time, connect the pipe fitting a securely to the corresponding joint A. As shown, pipe fittings A, pipe fittings E and F are set to have different sizes.

Therefore, the pressure oil from the oil reservoir 12 according to the trailer 21 rule is supplied from the hydraulic pump 10 to the switching valve 18 via the high pressure main frame 14, and by the switching operation, the oil for the bottom screws 6R, 6F...motor 22°2 filter is supplied. Rotate forward.

In this case, the pressure oil from the hydraulic pump 11 is returned to the hydraulic pump 11 again, resulting in no-load operation where the oil is simply circulated to the sheep.

As described above, in the present invention, one tractor can handle a plurality of storage tanks with different discharge methods, so that powder and granular materials can be transported efficiently.

In addition, the discharge side pipe joint of the front pressure pump 10 is the hydraulic pump 1.
Since the male and female discharge side pipe joints B in 1 are different, and only the trailer side pipe joint a or a) can be used at all times.
There is no fear of manipulation.

Furthermore, since the discharge amount of the hydraulic pump 10 is set to be larger than that of the hydraulic pump 11, the storage tank 52
If this is connected, the efficiency of the hydraulic pump 10 that performs forward rotation of the load decreases, and even if the discharge volume decreases, the pressure oil from the hydraulic pump 11, which is in no-load operation, acts on the biting side and increases the temperature pressure. It never becomes.

Further, although the oil reservoir is provided on the trailer side, there is no difference in effectiveness even if it is provided on the tractor side.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and Fig. 1 is a side view of the entire granular material transport vehicle in a form in which a storage tank that enables spot discharge is connected to a tractor 1N, and Fig. 42 is a side view of a drop-in discharge. 6 is a hydraulic circuit diagram of the powder transport vehicle shown in Fig. 1, and Fig. 4 is the hydraulic circuit diagram shown in Fig. 2. FIG. 1...Tractor, 2...Trailer, 5...
Powder storage tank, 10.11...Hydraulic pump, A
T13, O, D, E, 1... Connection part.

Claims (1)

[Scope of Claims] (1)) The first. A second hydraulic pump is installed, and a storage tank equipped with a screw conveyor driven by a hydraulic motor is mounted on the vehicle frame on the trailer side, and the trailer is towed by a tractor. A powder and granular material transport vehicle is configured such that the discharge side of one hydraulic pump can be connected to the suction side of the other hydraulic pump in accordance with the discharge method of the storage tank. (2) The storage tank has a bottom screw, a vertical screw, and a discharge screw, and has a first storage tank that enables discharge to a high place such as a silo, and a bottom screw, and has an underground facility, etc. 2. The powder and granular material transport vehicle according to claim 1, wherein the powder and granular material transport vehicle can be selected from a second storage tank that allows for dropping and discharging. (6) If the storage tank is a Taji 1 storage tank that allows discharge to a high place, the hydraulic motor for the discharge screw and the hydraulic motor for the vertical screw are connected in series and pressure oil is supplied from the other hydraulic pump. 3. The powder transport vehicle according to claim 1, wherein the bottom screw hydraulic motor is supplied with pressure oil from one of the hydraulic pumps. (4) If the storage tank is a second storage tank with an iJ function for falling discharge, the bottom screw hydraulic motor is supplied with pressure oil from the other hydraulic pump, and the discharge side of the hydraulic pump is connected to the other hydraulic pressure. A granular material transport vehicle according to claim 1 or claim 2, which is connected to the suction side of a gimp. (5) The powder and granular material transport vehicle according to claim 1, wherein the discharge distribution of the other hydraulic pump is larger than that of the one hydraulic pump. (6) The male and female pipe joints provided at the discharge end of the other hydraulic pump and the one hydraulic pump are different, and the pipe joint provided at the suction end of the bottom screw hydraulic motor is , the powder and granular material transport vehicle according to claim 1JA or claim 4, wherein the male and female are set so that they can be connected only to the discharge side pipe joint of the other hydraulic pump.