JPH0211378Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is a linear reciprocating movement for discharging lumps such as coal, granules and powders such as grains (hereinafter referred to as stored materials). The present invention relates to stored material equipment such as a silo, which is equipped with a dispensing device for discharging, and a conveying device for transporting the stored material discharged by the dispensing device.

[Prior art] A movable stored material dispensing device having a discharge port at the bottom and repeating linear reciprocating motion is provided at the discharge port, and the stored material discharged by the dispensing device is conveyed below the dispensing device. The present applicant previously filed a patent application for a storage facility equipped with a conveyor or other conveyance device for the purpose of carrying out such storage (see Japanese Patent Application Laid-open No. 158079/1983).

According to this technology, the stored material can be discharged stably without clogging the discharge port unlike conventional stored material equipment in which the discharge port is provided with an on-off valve or the like.

[Problems to be solved by the invention] By the way, in the stored material equipment for which the patent application was previously applied, the conveyor or other conveyance device is operated at a constant speed in one direction (forward direction), whereas the mobile stored material dispensing device is operated at a constant speed in one direction (forward direction). Since the device is operated at a constant speed in two directions (forward and reverse directions), the relative speed of the mobile accumulated material dispensing device to the transport device during forward and reverse transport is different, and therefore the transport capacity of the transport device is Since it is a constant speed, it should be constant, but in reality, the conveyance load amount of the conveyance device at the dispensing port section is different when the mobile stored material dispensing device is in normal operation and in reverse operation.

For this reason, in conventional apparatuses, in order to ensure the conveying capacity of the conveying apparatus at the dispensing port, the capacity of the conveying apparatus is determined according to the slower relative speed.
However, if the speed of the transport device is constant, the transport capacity of the transport device must be changed by changing the transport width. For example, if the speed of the transport device is 60 m/
min, and in an actual machine where the speed of the mobile stored material dispensing device is 10 m/min, the relative speed ratio of the mobile stored material dispensing device to the conveying device during forward and reverse operation is 1.4, so the belt width is made 1.4 times wider. Must have. The length of the transport device is generally 50 to 100 m.
This increases the transport width, which inevitably increases the price and increases the installation space, resulting in a huge loss.

[Structure of the invention] The present invention has been made to solve the above-mentioned conventional problems.According to the invention, the traveling speed of the conveying device is changed in relation to the moving direction of the mobile stored material dispensing device. By doing so, even when the dispensing device reciprocates, the amount of stored items on the conveyor is always equalized.

That is, according to the present invention, a discharge port is provided at the bottom of the silo, a cone is provided above the discharge port,
A mobile stored material dispensing device is provided that repeatedly reciprocates linearly over the discharge port to discharge the stored material with a scraper, and a section below the dispensing device for conveying the stored material discharged by the dispensing device is provided. In a storage facility equipped with a conveying device that travels in a direction, the conveying device has a traveling speed when the dispensing device moves in a backward direction opposite to the traveling direction of the conveying device. A speed changing means is provided for changing the traveling speed in conjunction with the reciprocating movement of the dispensing device so that the traveling speed is slower than the traveling speed when moving in the forward direction of the same direction.

[Operation of the invention] The conveyance device 5, such as a conveyor, travels in one direction (forward direction) at a constant speed. On the other hand, the mobile stored product dispensing device 4 moves at a constant speed in two directions (forward and reverse directions). The scrapers 9a and 9b of the dispensing device 4 are opened on the moving direction side of the dispensing device 4 and set to the dispensing position, and the stored materials are discharged from the stored material equipment 1 such as a silo, and the stored materials discharged by the dispensing device 4 are transferred to the conveying device 5. It falls and is transported by the transport device 5 to an appropriate location outside the storage equipment 1.

At that time, the speed of the conveyor 5 is set such that the relative speed between the conveyor 5 and the dispensing device 4 is high when the dispensing device 4 moves in the opposite direction (when the dispensing device 4 moves in the opposite direction to the conveyor 5). 4 is slower than when the dispensing device 4 moves in the forward direction (when the dispensing device 4 moves in the same direction as the conveyor 5), where the relative speed with respect to the conveyor 5 is small. This makes it possible to equalize the relative speed between the conveyor 5 and the dispensing device 4 when the dispensing device 4 is moving in the forward direction, and the relative speed between the conveyor 5 and the dispensing device 4 when the dispensing device 4 is moving in the reverse direction. Even if the dispensing device 4 operates in the forward or reverse direction, the amount of stored items placed on the conveyor 5 can always be made equal.

[Embodiments] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

Fig. 1 shows a stored material facility with a built-in mobile stored material dispensing device, where 1 is a silo main body with a discharge port at the bottom, 2 is a cone provided at the top of the discharge port, and is arranged in the longitudinal direction of the silo 1. It extends, and a pair of running rails 3a, 3b are installed therein.
What is generally indicated by 4 is a mobile stored material dispensing device, which is connected to traveling rails 3a, 3b via its traveling wheels.
It is suspended from the sky and travels back and forth. Reference numeral 5 denotes a conveyor, which is disposed below the dispensing device 4, and is adapted to convey the stored material dispensed by the dispensing device 4, and moves in the direction of the arrow.

FIGS. 2 and 3 show details of the mobile stored material dispensing device 4, which rolls on traveling rails 3a and 3b. The running wheels 7 are driven by a running motor 8,
Then, the traveling motor 8 is switched between normal and reverse rotation by a limit switch or the like in the reverse position, so that the dispensing device 4 reciprocates.

A pair of scrapers 9a and 9b in a dogleg shape are provided at the bottom of the mobile storage device 4, and these scrapers 9a and 9b constitute dispensing means.
a and 9b are fixed at their bent portions to shafts 10a and 10b, respectively, which are rotatably supported by the machine frame. Furthermore, sector gears 11a and 11b that mesh with each other are fixed to the shafts 10a and 10b, and an adjustment arm 12 is fixed to one of the shafts, for example, the shaft 10b. This adjustment arm 12
A rope 13 is connected to the tip of the dispensing device 4, and the rope 13 is wound around drums 14a and 14b provided on both sides of the dispensing device 4, and the drums 14a and 14b are connected to motors 15a and 15, respectively.
It is designed to be rotated by b. Therefore, in FIG. 3, when one of the drums 14a rotates in the direction to wind the rope 13
1. Through the shaft 10b and the sector gears 11a, 11b which are engaged with each other, the right half of the scrapers 9a, 9b is opened to be in the dispensing position, and the left half is closed to be in the neutral position. When the other drum 14b winds up the rope 13, the left half of the scrapers 9a, 9b is opened to be in the dispensing position, and the right half is closed to be in the neutral position.

Of course, the side of the dispensing position where the scrapers 9a and 9b are open is the side in the moving direction of the mobile stored material dispensing device 4, but this switching is
This is done in conjunction with the switching from the forward direction to the reverse direction and from the reverse direction to the forward direction. This includes the dispensing device 4
The motors 15a and 15b of the scrapers 9a and 9b are alternately moved in the direction in which the rope 13 is wound in conjunction with the movement of the travel motor 8 which is switched from forward rotation to reverse rotation and from reverse rotation to forward rotation by a limit switch or the like in the reverse position. Just rotate it.

By the way, as mentioned above, the conveyor 5 is operated at a constant speed in one direction (forward direction), whereas the mobile stored material dispensing device 4 is operated at a constant speed in two directions (forward and reverse directions). , the relative speed of the dispensing device 4 during forward and reverse operation with respect to the conveyor 5 is different,
For this reason, the conveyance capacity of the conveyor 5 at the dispensing port section differs between when the dispensing device 4 is operated normally and when it is operated in reverse.

That is, when the mobile stored material dispensing device 4 moves in the forward direction (the direction in which the conveyor runs), the relative speed with respect to the conveyor 5 is small, and when the dispensing device 4 moves in the opposite direction (in the direction opposite to the direction in which the conveyor runs), the relative speed is small. The relative speed with the conveyor 5 increases.
Now, the payout amount of the payout device 4 is the same during the reciprocation, and the conveyance capacity of the conveyor 5 is the same as that of the payout device 4.
If set to the conveyance capacity when moving in the forward direction (the running direction of the conveyor), the conveyor 5 will be
The conveyance capacity of the conveyor 5 is too large and uneconomical, and if the conveyance capacity of the conveyor 5 is set to the conveyance capacity when the dispensing device 4 moves in the reverse direction, when the dispensing device 4 moves in the forward direction, it will exceed the conveyance capacity of the conveyor 5. The payout amount becomes .

Therefore, the traveling speed of the conveyor 5 when the dispensing device 4 is moving in the opposite direction to the traveling direction of the conveyor 5 is calculated from the traveling speed of the conveyor 5 when the dispensing device 4 is moving in the forward direction in the same direction as the traveling direction of the conveyor 5. I'll make it late too. This can be done by controlling the motor pulley 6 of the conveyor 5 in conjunction with the direction of movement of the dispensing device 4 being reversed by a limit switch or the like. As a specific example of the speed changing means, a pole change of the motor pulley 6, a frequency control method, a fluid coupling method, a combination method of a gear and a chain/sprocket, etc. can be adopted.

In this way, the running speed of the conveyor 5 when the relative speed between the conveyor 5 and the dispensing device 4 is high when the dispensing device 4 is moving in the reverse direction is compared with the traveling speed of the dispensing device 4 when the relative speed between the conveyor 5 and the dispensing device 4 is small when the dispensing device 4 is moving in the forward direction. By setting the traveling speed of the conveyor 5 to be slower than the traveling speed of the conveyor 5, the amount of stored items placed on the conveyor 5 can always be made equal even when the dispensing device 4 moves back and forth. Therefore, the conveyor 5 can demonstrate its full conveying capacity.

[Effects of the invention] As explained above, the present invention is capable of changing the running speed of the conveying device in relation to the reciprocating movement of the dispensing device, that is, when the dispensing device moves in the opposite direction to the conveying device, the dispensing device is conveyed. Since the speed of the conveyance device is slower than the speed of the conveyance device when moving in the same direction as the device, the relative speed between the conveyance device and the dispensing device when the dispensing device moves in the forward direction, and the relative speed of the conveyance device when the dispensing device moves in the reverse direction. The relative speed between the device and the dispensing device can be made equal, so that even when the dispensing device moves back and forth, the amount of accumulated material on the conveying device is always the same, and the capacity of the conveying device can be fully utilized. . Further, the intended purpose can be achieved by simply changing the speed of the conveying device in relation to the reciprocating motion of the dispensing device without adding any additional means to the dispensing device.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view of a stored material facility incorporating a mobile stored material dispensing device;
2 and 3 show details of the mobile stored material dispensing device provided in the stored material facility of FIG. 1, with FIG. 2 being a front view and FIG. 3 being a plan view. DESCRIPTION OF SYMBOLS 1... Silo, 2... Cone, 3a, 3b... Traveling rail, 4... Mobile stored material dispensing device, 5... Conveyor, 6... Motor pulley, 7... Traveling wheel, 8... Traveling motor, 9a, 9b... Scraper, 10a, 10
b...shaft, 11a, 11b...sector gear, 12...adjustment arm, 13...rope, 14a, 14b...drum, 15a, 15b...scraper operating motor, 1
6a, 16b...pin rack, 17a, 17b...drive sprocket.

Claims (1)

[Scope of utility model registration request] A discharge port is provided at the bottom of the silo, a cone is provided above the discharge port, and a mobile stored material dispensing device is installed that repeatedly reciprocates linearly over the discharge port to discharge the stored material with a scraper. In storage equipment, in which a conveyance device that runs in one direction is installed below the device to convey stored materials discharged by a dispensing device, the conveyance device is arranged so that the dispensing device runs in a direction opposite to the traveling direction of the conveyance device. The traveling speed is related to the reciprocating operation of the dispensing device so that the traveling speed when moving in the backward direction is slower than the traveling speed when the dispensing device moves in the forward direction in the same direction as the traveling direction of the conveying device. A storage installation characterized in that it is provided with means for changing the speed.