JPS6245930B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a gravity transport method for transporting earth and sand.

The applicant previously proposed a gravity transport system in which earth and sand are transported by gravity by circulating a continuous trolley.

However, the number of trolleys is determined by the transport distance and the total length of the trolley.

Therefore, although it is suitable for transporting large volumes of soil, it is not necessarily suitable for transporting medium to small volumes.

The present invention was made in view of the above circumstances, and its purpose is to make it easier to load earth and sand into trolleys at a loading site, and to reduce the gap between trolleys so that a simple spill guard can be installed. The purpose is to make it possible to load earth and sand into trolleys without dropping the earth and sand onto the tracks simply by installing the earth and sand.

Hereinafter, the present invention will be explained with reference to the drawings.

In the drawings, Q is a topographically high place, and R is a low place.

An up track 1 and a down track 2 are laid in parallel from a high point Q to a low point R.

And at a high place Q, the upward trajectory 1 is the downward trajectory 2.
is connected to via semicircular track 3, and low point R
It is connected to the downhill track 1 via a semicircular track 4.

A loading area 5 is provided on the high Q side of the down track 2, and a soil removal site 6 is provided on the low R side of the down track 2. A tension relief device 7 is provided.

The downward track 2 in the loading yard 5 is horizontal as shown in FIG. The downhill track 2 in the normal running section 9 on the side has an uphill section 10 with an upward slope, a horizontal section 11, and a downhill section 12.

In addition, the normal running section 15 that enters the tension relief device 7
The downhill track 2 has a downhill section 13 and an uphill section 14, and the normal running section 16 on the exit side of the tension relief device 7 has a downhill slope. In the drawing, 30 is a trolley, and the trolley 30 is equipped with a vessel 32 for side-turning. That is, Trotsko 10
A bracket 34 is fixed to one side of the carriage 33, and a bracket 35 provided on one side of the lower part of the vessel 32 is connected to this bracket 34 by a pin 36. Further, on the other side of the lower part of the vessel 32, wheels 38 for overturning are provided via a support member 37.

One side of the Bethel 32 is open, and an opening/closing door 39 is provided in this opening.

That is, an arm 40 is provided at one end of the opening/closing door 39.
The arm 40 is swingably attached to the front and rear surfaces of the vessel 32 by a pin member 41, and the arm 40 has a link 43 attached to a bracket 42 provided approximately in the center of the front and rear end of the truck 33. They are connected via

Furthermore, a claw 18 is provided at the bottom of the truck 33.

Adjacent trolleys 30 are connected by a coupler 20 consisting of a chain 19. Bending of the chain 19 in the vertical direction is performed by the link pin 21, and bending in the horizontal direction is handled by rotating the connecting portion between the pin 22 of the connecting portion of the trolley 30 and the chain link.

Due to the above structure, this coupler 20 can transmit force when pulling, but cannot transmit force when pushing.

The tension relaxation device 7 is the downward track side tension relaxation section 4
4 and an upward track side tension relaxation section 45.

The downward track side tension relief section 44 has main sprockets 47 and 48 which are supported by a machine base 46 and spaced apart from each other.
A main chain 49 is attached to both main sprockets 47 and 48. Also, machine stand 46
Idlers 50a, 51b, and 52c are provided to give tension to the main chain 49. The main chain 49 has a plurality of claws 5 at predetermined intervals.
0 is installed.

Transmission sprockets 51 and 53 are provided on the same shaft 62 on the machine base 46, and a sprocket 52 is attached to the shaft 52' of the main sprocket 47. In addition, the machine base 46 includes a generator 53 and a speed increaser 5.
4, and a sprocket 56 is provided on the input shaft 55 of the speed increaser 54.

A chain 57 is connected to the sprocket 52 and one transmission sprocket 51, and a chain 57 is connected to the other transmission sprocket 52 and sprocket 56.
A chain 58 is hung on it.

A control device 59 is provided on the machine base 46 . The braking device 59 includes a brake plate 60 provided on a shaft 62 and a caliper 61 that presses against the brake plate 60.

The up-track tension relaxation section 45 has the same configuration as the down-track tension relaxation section 44, except for the generator 53, and the explanation thereof will be omitted by adding '' to the number of each component.

The shafts 62 of the transmission sprockets 51 and 53 of the downward track tension relaxation section 44 and the upward track tension relaxation section 4
The shaft 52'' of the main gear 47' of No. 5 is the gear 63, 6
They are connected to each other via 3'.

Note that the tension relaxation device 7 (main chain 49
length) > (length of trolley 30 x 2 + coupler 20
If the length is not , the engagement between the trolley 30 and the pawl 50 of the main chain 49 will be incomplete.

The loading device 64 in the loading area 5 is shown in FIGS. 16 and 17.

The loading device 64 is equipped with four sprockets 66, 67, 68, and 69 that are pivotally supported on a base frame 65. A chain 70 is hung between the sprockets 66 to 69, and a chain 70 is provided at a predetermined interval. A plurality of spill guards 71 are attached at the center.

The spill guard 71 includes a roof-shaped guard body 72, and a guide 73 is attached to the guard body 72 to prevent soil from spilling to the left and right.
The guard body 72 is equipped with wheels 74. Base frame 6
Upper and lower guide rails 75 and 76 are attached to the sprocket 5, and a sprocket 66 is used for driving and is rotated by a motor 77.

In the drawing, 78 is a hopper, and 79 is an apron feeder.

Next, the operation will be explained.

In the vicinity of loading area 5, as shown in Figure 3,
The trolley 30 at position C only needs to travel to position B during the time the trolley 30 travels to position A.
This is due to the topography mentioned above.

Therefore, the loading area 5 is an area where the coupler 20 is loose, and the trolley vehicle speed is slow, making loading easier and reducing the distance between trolleys.

Then, the sprocket 66 is rotated by the drive of the motor 77, the chain 70 is run, and the spill guard 71 is run on the lower rail 76, so that the spill guard 71 closes the gap 80 between the trolleys 30 from above. In this state, the earth and sand in the hopper 78 is fed by the apron feeder 79 and loaded onto the trolley 30.

When earth and sand are continuously loaded into the trolleys 30 in this manner, the group of trolleys 30 travels on the downward track 2 and enters the tension relief device 7.

If the tension relief device 7 is simply installed on the slope, the first
As shown in Figure 0, the coupler 20 becomes loose on the inlet side of the tension relief device 7 (because the distance between the trolleys 30 appears to become shorter), and the claw 50 of the downward track tension relief section and the trolley 30 become loose. The claws 18 do not mesh properly.

However, as mentioned above, since the descending track 2 is slightly lowered on the entrance side of the tension relief device 7 as shown _{in FIG} . 30 _3,3
Since a descending force of _0.04 is applied and the coupler 20 is always tensioned, the pawl 18 of the trolley 30 and the pawl 50 of the descending track side tension relief part 44 mesh well.

When the claw 18' of the trolley 30 and the claw 50 of the descending track side tension relief part 44 engage, the main chain 49,
Main sprocket 47, transmission sprocket 5
Power enters the shaft 62 through 3, and the gears 63, 6
3', the upward track side tension relief part 45 via the shaft 52''
The rotation of the main chain 49' drives the trolley 30 on the upward track 1 side.

Further, part of the power that has entered the main sprocket 47 enters the generator 53, and excess energy is absorbed. In this way, the overall trolley vehicle speed is controlled.

The trolley 30 that has left the tension relief device 7 is at the soil removal site 6
At this point, the overturning wheels 38 ride on the earth discharge rail 70, the vessel 32 falls sideways, the door 39 opens, and the earth and sand are discharged.

The trolley 30 that has left the dumping site 6 enters the upward trajectory 1.

The present invention has been described in detail above, and the up-trajectory 1
and the descending track 2 are installed in a loop from a high point Q to a low point R, and adjacent trolleys 30 are connected endlessly by a coupler 20 consisting of a chain so that a group of trolleys 30 circulates on the orbit by gravity. In this, the normal running section 8 on the entrance side of the loading area 5 provided on the high point Q side of the descending track 1 has a downward slope, and the normal running area 9 on the exit side of the loading area 5 is made to have a downward slope. Since the downhill track 2 has an upward slope to reduce the gap between the trolleys 30 at the loading yard 5 and reduce the vehicle speed of the trolleys 30, it is easy to load earth and sand onto the trolleys 30 at the loading yard 5. Also, since the gap between the trolleys 30 is small, just by installing a simple spill guard, the trolleys 30 can be moved without soil falling onto the track.
Sediment can be loaded into the area.

[Brief explanation of the drawing]

Fig. 1 is a schematic plan view of an embodiment of the present invention, Fig. 2 is a side view of the same, Fig. 3 is a topographical explanatory diagram of the downward trajectory of the loading area, and Fig. 4 is a downward view of the strain relief device. An explanatory map of the topography of the orbit, Figure 5 is a side view of Trotsko,
Figure 6 is a front view of the same, Figure 7 is an explanatory diagram of the same action, and Figure 8 is a front view of the same.
The figure is an explanatory diagram of the running state of the trolley connected by a coupler, Figure 9 is a plan view of the coupler, Figure 10 is an explanatory diagram of the trolley running state with the coupler loosened, and Figure 11 is the tension A plan view of the strain relief part on the downward track side of the relaxation device, FIG. 12 is a side view of the same, FIG. 13 is a plan view of the strain relief part on the upward track side, FIG. 14 is a side view of the same, and FIG. 15 is the strain relief device. Plan view, No. 16
The figure is a front view of the loading device, FIG. 17 is a sectional view of the same, FIG. 18 is a side view of the spill guard, FIG. 19 is a plan view of the same, and FIG. 20 is an explanatory diagram of the state of the coupler before and after the strain relief device. It is. 1 is the up track, 2 is the down track, 5 is the loading area, 3
0 is Trotsko.

Claims (1)

[Claims] 1 Upward track 1 and descending track 2 are installed in a loop from high point Q to low point R, and adjacent trolleys 3
0 is the entrance of the loading area 5 provided on the high Q side of the downward track 1, in which a group of 30 trolleys connected in an endless manner by a coupler 20 consisting of a chain circulates on the orbit by gravity. The downhill track 1 of the normal running section 8 on the side has a downward slope, and the downhill track 2 of the normal running section 9 on the exit side of the loading area 5.
The gravity transport method is characterized in that the vehicle speed of the trolleys 30 is reduced by providing an upward slope to reduce the gap between the trolleys 30 in the loading area 5.