KR20030043270A - Over load preventive device by using pulley rotating force - Google Patents

Abstract

PURPOSE: An overload preventing device is provided to maximize the unloading efficiency by preventing an overload and minimizing a deadlock of an equipment. CONSTITUTION: Many driving sprockets(33a,b) and band sprockets(35a,b) are installed in lower chutes(15a,b). A driving chain(36) is arranged to be hung in the sprockets. Many rollers are elastically operated on a frame of an upper belt conveyor(10) on the lower chutes. A forward roller driver(20) and a backward roller driver(21) are alternatively installed on both shafts of the rollers and are selectively geared with the driving chain according to the load of the belt conveyor. Thereby, the reduction of the unloading efficiency and the environmental pollution are prevented.

Description

OVER LOAD PREVENTIVE DEVICE BY USING PULLEY ROTATING FORCE}

The present invention relates to a device that can prevent in advance the overload generated when cutting the raw material of the unloader, and more particularly, such as the specific gravity and excess moisture of the raw material when the unloader chopped into the ground belt conveyor For other reasons, the present invention relates to an overload prevention device using a pulley rotational force to prevent the belt conveyor from being stopped due to overload when a large amount of cutting is performed.

In general, the unloading operation of raw materials and subsidiary materials of steel mills is carried in the yard by relaying the transport items to the respective ground belt conveyors through the upper and lower belt conveyors in the cabin by a feedstock feedrate using an unloading crane.

In this process, due to the excessive moisture of the fuel and the misoperation of the operator during the cutting of the fuel, a large amount of fuel is poured into the upper belt conveyor, which does not pass through the outer chute. An overload occurs that causes a trip.

In the related art, as illustrated in FIGS. 1 and 2, when an overload occurs, an operator climbs to the upper belt conveyor 10 to manually handle the soft and raw material 100 in the upper belt conveyor 10 on land to solve the overload. . However, in such a method, the overload recovery time is excessively generated so that the efficiency of the unloading machine is lowered, and various safety accidents may occur in the process of processing.

In addition, when processing the fuel raw material 100 in the land as well as the loss of the fuel raw material (100) falls to the sea and marine pollution and various environmental pollution occurs.

In addition, the reference numeral '11' is the lower belt conveyor, '13' is the outer suit, '14' is the upper chute, '15a, b' is the lower chute.

The present invention was created in order to solve the above-mentioned conventional problems, the lower portion so as to enable safe cutting without overloading the belt conveyor even if a large amount of fuel is poured into the belt conveyor at the same time in the process of cutting the fuel raw material. A device that can transfer the driving force of the driving pulley to the outer wall of the belt conveyor can transmit power to the upper belt conveyor to prevent overload and to prevent overload by using the pulley rotational force to maximize the unloading efficiency by minimizing downtime of equipment. The object is to provide a device.

1 and 2 is an exemplary view showing a fuel feed facility according to the prior art,

3 is a side view of the device of the present invention;

4 and 5 is a detailed view of the main portion of the apparatus of the present invention,

6 is a partial perspective view of the device of the present invention;

7 and 8 are perspective views of main parts of the device of the present invention;

Explanation of symbols on the main parts of the drawings

10: upper belt conveyor 11: lower belt conveyor

15a, b: lower chute 20: forward roller drive unit

21: reverse roller drive unit 23: reverse rotation prevention frame

25: roller drive sprocket 26: roller sprocket

33a, b: drive sprocket 35a, b: band sprocket

36: drive chain 45: spring fixing plate

48: frame

The above object of the present invention is a plurality of drive sprockets and band sprockets installed in the lower chute; A drive chain disposed to be caught by the drive and the band sprocket; A plurality of rollers installed elastically in a vertical direction on a frame of an upper belt conveyor installed on an upper side of the lower chute; It is installed alternately on both shafts of the roller and comprises a forward roller drive unit and a reverse roller drive unit that is selectively engaged with the drive chain according to the load of the upper belt conveyor using a pulley rotational force, characterized in that By providing an overload protection device.

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

3 to 6, the present invention uses the driving power of the pulleys 30a and b of the lower belt conveyor 11 to the pulley blocks 31a and b and the driving sprockets 33a and b and the driving chain ( 36) by connecting the roller drive chain 28 to the forward roller drive unit 20 and the reverse roller drive unit 21 of the upper belt conveyor 10 to reduce the overload applied to the upper belt conveyor 20. It is configured to reduce.

The lower belt conveyor 11 is a conveyor driven in the forward direction and the reverse direction, and is installed in the lower chutes 15a and b.

The rotational force of the pulleys 30a and b is transmitted by connecting driving sprocket shafts 32a and b to the left and right side pulley blocks 31a and b of the pulleys 30a and b installed in the lower belt conveyor 11. Drive sprockets 33a and b at the ends of the drive sprocket shafts 32a and b.

Then, the band sprocket shafts 34a and b were installed on the driving sprockets 33a and b, and the band sprockets 35a and b were installed at the ends thereof.

Such a configuration is provided on the left and right sides of the lower chutes 15a and b, respectively.

The forward roller drive unit 20 is installed on the frame 48 of the upper belt conveyor 10, as shown in FIG.

Instead of the conventional carrier roller, a long straight roller 40 was installed to receive the load of the upper belt conveyor 10 uniformly, and the roller bracket 41 provided the roller 40 on the left and right sides of the roller 40. It is installed in support.

The roller bracket 41 is provided on the upper surface of both ends of the bracket support 42, and the spring fixing plate 45 is provided on the left and right lower sides of the bracket support 42.

A plurality of springs 44 are installed in the lower portion of the bracket support 42, that is, inside the spring fixing plate 45, and the forward roller driving unit 20 according to the vertical action of the springs 44 is frame 48. The spring holder 46 is installed at the lower part of the spring 44 so as to be smoothly operated at the upper part, and the spring holder 46 is fixed to the frame 48.

The roller sprocket 26 is connected to the shaft of the roller 40 of the roller bracket 41 on the left and right sides of the roller 40, and the roller driving sprocket upper and lower operating plates 47 are connected to the left and right ends of the spring fixing plate 45. It is connected.

The roller drive sprocket 25 is provided on the roller drive sprocket upper and lower operation plates 47.

The roller drive sprocket 25 and the roller sprocket 26 are connected to the roller drive chain 28 so that when the roller drive sprocket 25 rotates, the roller sprocket 26 also rotates so that the rotational force can be transmitted to the roller 40. It is configured to be.

In addition, the roller drive sprocket 25 was connected to the roller drive sprocket shaft 24 so as to receive the rotational force of the lower belt conveyor 11, and a drive chain connection sprocket 22 was installed at the end thereof.

The driving chain connecting sprocket 22 has a groove so that the reverse rotation preventing frame 23 can be fixed to the rear side of the driving chain connecting sprocket 22 so that the rotational force does not affect the forward roller driving device 20 during the reverse rotation. 44 are dug up.

The reverse rotation preventing frame (23a, b) is connected to the groove 44 has a groove 55 is dug so that the reverse rotation preventing member (23-2) of the right triangle is pushed in, and therein the spring ( 23-1) is installed.

Therefore, during forward rotation, the anti-rotation guard 23-2 is pushed out by the force of the spring 23-1 to rotate the drive chain connecting sprocket 22.

However, at the time of reverse rotation, the reverse rotation prevention guide 23-2 is pushed into the reverse rotation prevention frame 23 and does not affect the roller driving sprocket 25 at all.

The reverse roller drive unit 21 has the same configuration as the forward roller drive unit 20, but the roller drive chains 28 'are connected to cross each other.

In order to eliminate friction between the roller drive chain 28 'during the operation of the roller drive chain 28', a chain protector 27 is installed on the spring fixing plate 45, so that the roller protector chains 28 'are different from each other. It is configured to prevent the friction of the roller drive chain 28 'by passing through the hole of the 27), the reverse rotation prevention frame 23 is installed to prevent the force is transmitted to the reverse roller drive unit 21 during the forward rotation It is.

However, in order to prevent the force from being transmitted in the forward direction, the reverse rotation prevention member 23-2 is installed in the opposite shape.

The plurality of forward roller drive unit 20 and the reverse roller drive unit 21 is installed between each other and installed on the frame 48 of the upper belt conveyor 10, it is installed under the outer suit 13 have.

Each drive chain connecting sprocket 22 is provided with a slight play so that it can be connected to the drive chain 36 by the vertical action of the spring 44.

The present invention made up of such a configuration works as follows.

The upper and lower belt conveyors 10 and 11 are driven to cut the soft and raw material 100.

At this time, the pulleys 30a and b installed in the lower chute 15a and b are rotated, and the rotational force rotates the driving sprocket shafts 32a and b through the pulley blocks 31a and b, thereby driving the sprocket 33a. rotate b).

The drive chain 36 connected to the drive sprockets 33a and b is connected through the band sprockets 35a and b installed on the top of the drive sprockets 33a and b so that the lower belt conveyor 11 always rotates when the drive belt is rotated. Will be

Since the lower belt conveyor 11 rotates in the forward or reverse direction, the drive chain 36 also rotates in the reverse or forward direction.

The upper belt conveyor 10 is a roller 40 by the spring 44 when a large amount of fuel raw material 100 is poured at the time of cutting when the load on the straight roller 40 installed in the lower portion of the outer chute 13 ) Acts to descend.

At this time, the roller 40, the roller bracket 41, the bracket support 42 works downward, but the spring fixing plate 45 is fixed on the upper frame 48.

In this way, when the drive chain connecting sprocket 22 of the forward roller drive unit 20 is engaged with the drive chain 36 of the lower belt conveyor 11, the rotational force is rotated by the roller drive sprocket shaft ( 24) to rotate the roller drive sprocket (25).

The roller drive chain 28 connected to the roller drive sprocket 25 is rotated in connection with the roller sprocket 26 connected to the straight roller 40, and this rotational force is transmitted to the straight roller 40 so that excessive fuel raw material 100 is applied. The force of the lower belt conveyor 11 during cutting is transferred to the upper belt conveyor 10 to reduce the load.

When the lower belt conveyor 11 rotates in reverse, the force is transmitted as above, but the reverse rotation prevention member 23-2 is pushed in by the reverse rotation prevention frame 23 installed on the rear side of the drive chain connecting sprocket 22. The rotational force is not transmitted and the reverse rotation prevention member 23-2 is returned by the spring 23-1 at the time of the forward rotation, thereby transmitting the forward force.

The reverse roller drive unit 21 has the same operation method as the forward roller drive unit 20, but the roller drive chain 28 'is alternately connected to each other, so that the roller sprocket 26 is always the upper belt conveyor 10. Rotate in the same direction of rotation.

The forward roller drive unit 20 and the reverse roller drive unit 21 installed as described above, when a large amount of the raw material 100 is poured at once, the roller 40 is operated by the spring 44 to the upper belt Not only does the raw material 100 pass through the outer chute 13 of the conveyor 10 but also the force of the lower belt conveyor 11 is transmitted to the upper part so as not to load the upper belt conveyor 11. Overloading will not occur.

As described above, according to the device of the present invention can reduce the unloading efficiency due to the overload occurs during the operation of discharging the fuel raw materials, there is an effect to prevent environmental accidents as well as to prevent environmental pollution.

Claims (6)

A plurality of drive sprockets 33a, b and band sprockets 35a, b provided on the lower chute 15a, b; A drive chain 36 disposed to be caught by the drive and band sprockets 33a, b, 35a, and b; A plurality of rollers (40) installed on the frame (48) of the upper belt conveyor (10) installed on the upper side of the lower chute (15a, b) so as to be elastically operated in the vertical direction; The forward roller drive unit 20 and the reverse roller drive unit 20 which are alternately installed on both axes of the roller 40 and selectively engage with the drive chain 36 according to the load of the upper belt conveyor 10. Overload prevention device using a pulley rotational force, characterized in that comprises a (21). The method of claim 1, wherein the forward roller drive unit 20 includes a spring (44) fixed to the upper surface of the frame (48); A roller bracket (41) and a bracket support (42) installed on the upper end of the spring (44) to rotatably support the roller (40); Roller sprockets 26 fixed to both shafts of the roller 40; A roller drive sprocket 25 fixed to a roller drive sprocket upper and lower operation plates 47 extending toward the roller bracket 41 opposite to the roller sprocket 26; A roller driving chain 28 connecting the roller sprocket 26 and the roller driving sprocket 25 so that the roller sprocket 26 and the roller driving sprocket 25 can rotate in the same direction; A drive chain connecting sprocket 22 which is coaxially fixed with the roller drive sprocket 25 and which is selectively engageable with the drive chain 36; It is fixed to the inner surface of the drive chain connecting sprocket 22 and is installed on the shaft comprises a reverse rotation prevention frame 23 provided to prevent the shaft of the roller drive sprocket 25 to reverse rotation Overload prevention device using pulley rotation force. The reverse roller driving unit (21) comprises: a spring (44) fixed to an upper surface of the frame (48); A roller bracket (41) and a bracket support (42) installed on the upper end of the spring (44) to rotatably support the roller (40); Roller sprockets 26 fixed to both shafts of the roller 40; A roller drive sprocket 25 fixed to a roller drive sprocket upper and lower operation plates 47 extending toward the roller bracket 41 opposite to the roller sprocket 26; A roller drive chain 28 'that cross-connects the roller sprocket 26 and the roller drive sprocket 25 so that they can be rotated in opposite directions; A drive chain connecting sprocket 22 which is coaxially fixed with the roller drive sprocket 25 and which is selectively engaged with the drive chain 36; It is fixed to the inner surface of the drive chain connecting sprocket 22 and is installed on the shaft comprises a reverse rotation prevention frame 23 provided to prevent the shaft of the roller drive sprocket 25 to reverse rotation Overload prevention device using pulley rotation force. According to claim 2 or 3, wherein the anti-rotation frame 23 is inserted into the groove 44 formed in a corresponding shape so as to be caught in the reverse rotation direction on the rear surface of the drive chain connecting sprocket 22, The right angled triangular groove 55 is formed along the edge at regular intervals, Using the pulley rotational force, characterized in that the groove 55 is provided by the spring 23-1 through the interlocking spring 23-1 having a shape corresponding to the reverse rotation prevention 23-2 elastically withdrawable Overload protection. 4. The pulley according to claim 2 or 3, wherein the reverse rotation preventing frame (23) installed in the forward roller driving unit (20) and the reverse roller driving unit (21) is formed in a shape opposite to each other. Overload prevention device using torque. [4] The method of claim 3, wherein the roller driving chain 28 'is provided with an annular chain protector 27, which is formed to form different flow paths so that the intersecting portions do not interfere with each other. Overload prevention device using pulley rotational force.