KR101071986B1 - Belt conveyor - Google Patents

Abstract

The present invention relates to a belt conveyor having an improved support structure of a carrier roller for supporting a transfer belt.

The belt conveyor according to the present invention is provided between a support frame, support members installed on both sides of the support frame, and two side carrier rollers and the side carrier rollers, which are installed between the shafts installed on the support frame. A rotational frame rotatably installed by a support means, a center roller unit having two or more center carrier rollers installed on the rotation frame, and a conveyance belt supported by the side carrier rollers and the center carrier rollers. The rotation frames correspond to each other, and the first and second support members spaced apart from each other in a direction crossing the extending direction of the transfer belt, and the first and second support members for strength reinforcement of the first and second support members. And a reinforcing rib protruding a predetermined length outward from an edge of the supporting member, wherein the shaft supporting means comprises: And the shaft support bracket is installed on being mounted to the first and second support members, and a fixed axis which ends are supported by the axle support bracket.

Belt conveyer

Description

Belt Conveyor {Belt conveyor}

The present invention relates to a belt conveyor, and more particularly to a belt conveyor with improved support structure of a carrier roller for supporting a conveying belt.

In general, conveyors can be classified into belt conveyors, roller conveyors, chain conveyors, etc. according to the characteristics of the product to be transported. Such a conveyor is used to interconnect the conveyor units having a predetermined length or have a length corresponding to the length of the space to be transported products.

Among these conveyors, the belt conveyor may be mainly used for transporting unit products, light sources, coal, grains, etc., which are often installed in open air according to the products to be transported. In particular, in the case of conveying the ore, coal, etc., the load applied to the carrier roller by the belt is relatively large, so that the carrier roller and the bearing supporting the coal are easily damaged.

Such a breakage of the carrier roller and the bearing has a problem of damaging the belt supported by the carrier rollers, the consumption of power for driving the belt conveyor becomes relatively large.

Meanwhile, Korean Unexamined Patent Publication No. 2002-0041925 discloses a belt conveyor having a carrier for preventing meandering of the belt conveyor, and Korean Utility Model No. 1993-023601 discloses a trapping carrier roller for a belt conveyor. The arc discloses a belt conveyor capable of adjusting the roller stand width.

The roller supporting structure used in the belt conveyors configured as described above has the rollers supported at both centers and the side carrier rollers located at both sides of the rollers being independently supported by the frame, so that the load applied to the belt is transmitted to each roller. Will be. In particular, since the center roller located at the center has a relatively large load acting on one roller, the bearing life of the center carrier roller is relatively shortened, and the driving power loss of the conveyor is relatively increased due to the damage of the bearing. Problems can not be ruled out

Accordingly, the present applicant has applied for a belt conveyor disclosed in Patent No. 10-0620132, and the present invention includes a rotating frame rotatably installed on the frame and at least two center carrier rollers installed on the rotating frame. A center carrier roller unit is included to minimize the amount of breakage or wear while adequately supporting the load of the conveyed material.

However, in order to maintain the support strength of the center carrier roller unit at the appropriate level in the case of the above-described invention, the size of each component has to be large, so there is a problem in that it takes a lot of manufacturing cost and is not easy to carry and install.

The present invention has been made to solve the above problems, it is possible to distribute the load applied to the roller supporting the belt, reduce the bending of the belt to reduce the resistance due to the transfer of the belt, the idle roller unit of the support belt It is an object of the present invention to provide a belt conveyor that can extend the service life while reducing the production and maintenance costs by minimizing the amount of material used while maintaining strength.

Belt conveyor according to the present invention for achieving the above object is to be installed between the support frame, two side carrier rollers supported by the support member installed on both sides of the support frame, and the side carrier rollers, A rotational frame rotatably installed by the axial support means installed on the support frame, a center roller unit having two or more center carrier rollers installed on the rotation frame, and the side carrier rollers and the center carrier rollers. And a conveying belt which is supported, the pivot frames correspond to each other, and reinforce strength of the first and second supporting members spaced apart from each other in a direction crossing the extending direction of the conveying belt, and the first and second supporting members. And a reinforcing rib protruding a predetermined length outward from an edge of the first and second supporting members, The shaft support means includes a shaft support bracket installed on the support frame, and a fixed shaft installed on the first and second support members, the end of which is supported by the shaft support bracket.

Each of the first and second support members includes a first support plate having a shaft support hole formed thereon so that the fixed shaft can be installed, and first and second ends extending outward from the both ends of the first support plate in the extending direction of the fixed shaft. A retracting groove extending from the upper end to the second extension plate and the front and rear directions along the extending direction of the conveying belt from the first and second extension plates and allowing the support shafts of the center carrier rollers to be inserted; And second and third support plates formed therein, wherein the reinforcing ribs extend along edges of the second and third support plates and protrude in a direction opposite to the center carrier roller along an extension direction of the fixed shaft. It is preferable to be.

And the fixed shaft is a cylindrical support pipe having a hollow, the insertion portion which is coupled to both ends of the support pipe and is inserted into the support pipe through the end of the support pipe, and connected to the insertion portion of the support pipe And a fixed block including an extension having a larger outer diameter than an outer diameter, and a protrusion extending from the extension and having a locking groove drawn inwardly from an outer circumferential surface on one side thereof, wherein the axial support bracket supports the support. A first support extending upwardly from the frame, a second support extending at an inclined angle with respect to the first support so as to support the support shaft of the side carrier roller from an upper end of the first support, a center carrier roller and a side From the second support so that mutual interference does not occur when installing the carrier roller A third support part extending in parallel with the support frame, and extending downward from the third support part toward the support frame, extending downward from an upper end to allow the protrusion of the fixing block to be inserted into the support frame; And a fourth support portion having a shaft fixing groove having a width corresponding to the outer diameter of the point, wherein the shaft support bracket has the first and second extension plates to minimize the separation distance between the side carrier roller and the center carrier roller. It is preferably installed so as to be interleaved therebetween, and a shock absorbing member is installed so that no damage occurs at the contact portion with the first and second extension plates when the pivot frame is tilted.

Belt conveyor according to the present invention can maintain a sufficient support strength while minimizing the weight of the idle roller unit for supporting the load of the conveyance, can reduce the manufacturing cost, there is an effect of extending the service life.

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

1 to 4 show a preferred embodiment of the belt conveyor 1 according to the invention.

Referring to the drawings, the belt conveyor 1 of the present invention includes a plurality of belt support means 20 installed on the main frame 10 and a conveyance belt 100 supported by the belt support means 20. do.

Although not shown, a head drum and a tail drum are installed at the end side of the mainframe 10, and a driving unit for driving the head drum or the tail drum is also provided so that the conveyance belt 100 moves while the conveying material is loaded. Formed.

The belt support means 20 includes a support frame 21 installed on the main frame 10, a side carrier roller 27 installed on the support frame 21, and a center roller unit 30. The frame 21 extends in a direction crossing the extending direction of the conveyance belt 100, and two side carrier rollers 27 are provided, one at each end of the support frame 21, one end of each of the support frame 21. It is coupled to the support member 22 formed at both ends of the (), and the other end is supported by a shaft support bracket 51 to be described later. And the side carrier roller 27 is provided so that it may incline downwards as it extends from the end side of the support frame 21 to the center roller unit 30 side.

The center roller unit 30 is installed between the side carrier roller 27, the rotation frame 31 rotatably installed on the support frame 21 and the two center carriers installed on the rotation frame 31. The roller 41 is provided.

The rotation frame 31 is formed on the first and second support members 32 and 33 spaced apart from each other along the extending direction of the support frame 21 and the first and second support members 32 and 33. Reinforcing ribs 42 are included.

The first and second support members 32 and 33 respectively extend the fixed shaft 61 from both ends of the first support plate 34 and the first support plate 34 on which the axial support holes 35 are formed. The first and second extension plates 36 and 37 extending outwardly and the second and second extension plates 36 extending back and forth along the extension direction of the conveyance belt 100 from the first and second extension plates 36 and 37. And third supporting plates 38 and 39, wherein the second and third supporting plates 38 and 39 are drawn in downwardly from an upper end thereof so that the support shaft of the center carrier roller 41 can be inserted therein. Is formed.

The reinforcing ribs 42 are formed to protrude outwardly along the longitudinal direction of the support frame 21 from the edges of the second and third support plates 38 and 39, which are second to support the center carrier roller 41. To reinforce the supporting strength of the third supporting plates 38 and 39.

Since the load of the conveyed material loaded on the conveyance belt 100 is mostly applied to the center carrier roller 41 extending in the horizontal direction, the first and second support members 32 supporting the center carrier roller 41 are supported. If the support strength of 33 is low, the first and second support members 32 and 33 may be damaged or deformed, and thus the transport belt 100 may not be fully supported.

Therefore, the support strength of the first and second support members 32 and 33 should be formed to be higher than or equal to a predetermined level. The reinforcement ribs can structurally increase the support strength of the rotation frame 31 through the reinforcement ribs 42. Since the required support strength can be obtained even if the overall thickness or size is smaller than when there is no (42), the amount of material used by the reinforcing ribs 42 is reduced, and the manufacturing cost is reduced. Done.

As described above, the center carrier roller 41 is provided with support shafts on the first and second support members 32 and 33 and is rotatable to support the transfer belt 100.

Since the two center carrier rollers 41 are installed at predetermined intervals in the extending direction of the conveying belt 100, the load of the support is distributed and acted on the two center carrier rollers 41 so that the conveying belt is stably provided. 100) can be supported.

In this embodiment, two center carrier rollers 41 are provided, but three or more may be installed as necessary.

The shaft support means 50 is for supporting the support shaft of the rotation frame 31 and the side carrier roller 27 with respect to the support frame 21, and includes a shaft support bracket 51 and a fixed shaft 61. .

The shaft support bracket 51 is for supporting the side carrier roller 27 and the fixed shaft 61 and is installed on the support frame 21 and includes first to fourth support parts 55.

The first support part 52 extends upward from the support frame 21, and the second support part 53 supports the first carrier part from the upper end of the first support part 52 so as to support the side carrier roller 27 in an inclined manner. It extends obliquely with respect to 52 at a predetermined angle.

The third support part 54 extends a predetermined length in the horizontal direction from the second support part 53, and the fourth support part 55 extends downward from the third support part 54 toward the support frame 21. The third support portion 54 is for separating the predetermined length so that mutual interference does not occur during installation of the center carrier roller 41 and the side carrier roller 27 which will be described later.

The fourth support part 55 is formed with a shaft fixing groove 56 downward from the upper end so that the fixing shaft 61 can be inserted.

Shock absorbing members 57 are formed on both side surfaces of the shaft support bracket 51.

The shaft support bracket 51 is positioned in the space between the first and second extension plates 36 and 37 so as to be adjacent to the first support plate 34 to support the end of the fixed shaft 61. However, since the first and second support members 32 and 33 rotate about the fixed shaft 61 to smoothly transport the conveyed material, the first and second extension plates 36 and 37 are supported by the shaft support bracket 51. When the rotational speed is high, the first and second extension plates 36 and 37 and the shaft support bracket 51 may be damaged by mutual collision, so that a shock absorbing member 57 may be used to alleviate the impact. It is provided on both side surfaces of the shaft support bracket 51 to prevent breakage due to collision with the first and second extension plates 36 and 37.

The buffer member 57 may be formed on the first and second extension plates 36 and 37.

The fixed shaft 61 supports the rotation frame 31 by fastening both ends to the axial support bracket 51 across the rotation frame 31. The fixed shaft 61 has a hollow cylindrical support pipe 62, and And a fixed block 63 installed at both ends of the support pipe 62.

The support pipe 62 is formed to have an outer diameter corresponding to the diameter of the shaft support hole 35, so that the support pipe 62 extends through the shaft support hole 35 so that the fixed shaft 61 rotates in the rotation frame 31. Combined with

The fixed block 63 is formed at both ends of the support pipe 62. The insert 64 is inserted into the support pipe 62 through an end of the support pipe 62, and is connected to the insert 64. And a protruding portion 65 having an enlarged portion 65 having an outer diameter relatively larger than the outer diameter of the support pipe 62, and extending from the expanded portion 65, and fastening grooves 67 drawn inwardly from the outer circumferential surface on one side thereof ( 66). Therefore, the expansion parts 65 formed at both ends of the support pipe 62 are in contact with the outer circumferential surfaces of the first and second support members 32 and 33 to fix the fixed shaft 61 so as not to flow. The protrusion 66 is inserted into the shaft fixing groove 56 of the fourth support part 55 in which the fastening groove 67 is formed.

The protrusion 66 is rotated when the width of the point where the fastening groove 67 is formed is relatively smaller than the width of the shaft fixing groove 56 so that the magnitude of the load applied to the two center carrier rollers 41 is different. The frame 31 may be rotated by a predetermined angle about the predetermined angle fixed shaft 61 according to the load.

Since the rotation frame 31 can be rotated as described above, even if a portion protruding to the lower portion of the conveyance belt 100 due to various shapes of the conveyed material is generated, the rotation frame 31 rotates at an appropriate angle to the specific center carrier roller 41. To prevent load concentration.

As described above, in the belt conveyor 1 of the present invention, the reinforcing ribs 42 are formed on the first and second support members 32 and 33 constituting the rotation frame 31 so that the first and second support members are provided. The volume of (32, 33) is minimized, and the fixed shaft 61 is also formed to include a support pipe 62 having a hollow and fixing blocks 63 formed at both ends of the support pipe 62. By reducing the weight, the driving load of the motor driving the conveyance belt 100 is minimized.

Hereinafter, the belt support means 20 of the present invention to which the reinforcing rib 42 and the fixed shaft 61 of the present invention are applied, and the reinforcing rib 42 is not formed, and the fixed shaft 61 is formed of a round bar. The belt support means 20 is compared.

First, Table 1 below shows the dimensions of the belt support means 20 of the present invention and the support members of the belt support means 20 of the prior embodiment, which support the transfer belt 100 having the same size and require the same support strength. The weight is compared.

A B C D E F G H I Weight (kg) Conventional 840 40 125.5 363 493 810 31 10 130 26 Invention 840 40 125.5 363 493 810 31 6.0 90 11.3

The items A to I as the comparison targets are A: CENTER SHAFT LENGTH, B: CENTER SHAFT DIA, C: ROLLER INTER-SPACE, D: ROLLER INSERT STK, E: STAND TOTAL STK, F: WIDTH, G: ROLLER SHAT HOLE, H: THICKNESS, and I: HEIGHT are shown, and in FIG. 5 and FIG. 6, the parts indicated by the respective items are shown in the conventional embodiments and the embodiments of the present invention for understanding each item.

As shown in Table 1, all other conditions are the same, including the distance between the first and second support members 32 and 33, but the embodiment of the present invention has a smaller thickness than the conventional embodiment, and the height is also relatively high. Lowered. Therefore, the overall weight was also reduced to less than half.

As the thickness and height are reduced and the overall weight is reduced, installation and transportation are easy, and the amount of materials used in manufacturing is also reduced to reduce the manufacturing cost.

In addition, when the center roller unit 30 of each embodiment is installed, the difference in the amount of current used in the motor was compared.

7 and 8 are graphs showing measurement results of measuring the amount of current required for the motor when the belt support means 20 of the present invention is applied and when the belt support means 20 of the present invention is applied, respectively. Is shown.

In order to compare this more accurately, it is listed in Table 2 below.

Measurement point Measurement date and time R current (A) S current (A) T current (A) Remarks Starting current Operating current Starting current Operating current Starting current Operating current Conventional 410.103 BC MCC 2009.06.02 1,427.0 173.7 1,436.0 174.9 1447.0 170.6 Invention 2009.06.08 1,415.0 153.3 1,420.0 154.5 1418.0 150.8

The motor used for the experiment is a 410.103 BC motor, first measuring the current amount of the motor in the state where the conventional belt support means 20 is installed, and then replace the belt support means 20 with an embodiment of the present invention. After that, the amount of current applied to the motor was measured.

As shown in the measurement result table, the starting current and the operating current of the belt support means 20 to which the present invention is applied are relatively smaller than those of the conventional belt support means 20, and it can be confirmed that power consumption is less.

Thus, the belt conveyor 1 of the present invention can minimize the weight and material usage of the belt support means 20 through the reinforcing ribs 42 and also minimize the power consumption of the motor for driving the transfer belt 100. It can be confirmed.

1 is a partial cutaway perspective view showing a preferred embodiment of the belt conveyor according to the present invention,

Figure 2 is an exploded perspective view showing the belt support means of Figure 1,

Figure 3 is a partial excerpt perspective view showing a rotating frame and a fixed shaft of Figure 1,

Figure 4 is a partial excerpt perspective view showing the shaft support bracket of Figure 1,

5 and 6 is a view showing each part of the conventional support member and the support member of the present invention for the understanding of Table 1,

7 and 8 are graphs showing the amount of current applied to the motor when the conventional belt support means and the belt support means of the present invention are applied, respectively.

<Explanation of symbols for the main parts of the drawings>

One; Belt conveyer

20; Belt support means

21; Support frame

30; Center roller unit

31; Rotating Frame

50; Shaft support means

51; Shaft Support Brackets

61; Fixed shaft

Claims (3)

delete A support frame; Two side carrier rollers supported by support members installed on both sides of the support frame; A center roller unit installed between the side carrier rollers, the center frame unit including a rotation frame rotatably installed by the shaft support means installed on the support frame, and two or more center carrier rollers installed on the rotation frame; And a conveyance belt supported by the side carrier rollers and the center carrier rollers. The pivot frames correspond to each other, and the first and second support members spaced apart from each other in a direction crossing the extending direction of the conveyance belt, and the first and second support members for strength reinforcement of the first and second support members. A reinforcing rib protruding a predetermined length outward from an edge of the member, The shaft support means is provided with a shaft support bracket installed on the support frame, the first and second support members, and a fixed shaft end is supported on the shaft support bracket, Each of the first and second support members includes a first support plate having a shaft support hole formed thereon so that the fixed shaft can be installed, and first and second ends extending outward from the both ends of the first support plate in the extending direction of the fixed shaft. A retracting groove extending from the upper end to the second extension plate and the front and rear directions along the extending direction of the conveying belt from the first and second extension plates and allowing the support shafts of the center carrier rollers to be inserted; Including the second and third supporting plates formed therein, The reinforcing rib extends along edges of the second and third support plates and is formed to protrude in a direction opposite to the center carrier roller along an extension direction of the fixed shaft. 3. The method of claim 2, The fixed shaft is a cylindrical support pipe having a hollow, the insertion portion which is coupled to both ends of the support pipe is inserted into the support pipe through the end of the support pipe, and connected to the insertion portion and the outer diameter of the support pipe And a fixed block including an extension having a relatively larger outer diameter, and a protrusion extending from the extension and having a locking groove formed at one side from the outer circumferential surface thereof. The shaft support bracket may include a first support part extending upward from the support frame and a second support part inclined at an angle with respect to the first support part so as to support the support shaft of the side carrier roller from an upper end of the first support part. And a third support extending from the second support side by side with the support frame so as to prevent mutual interference during installation of the center carrier roller and the side carrier roller, and extending downward from the third support toward the support frame. And a fourth support part having a shaft fixing groove having a width corresponding to an outer diameter of a point at which the fastening groove is formed and extending downward from an upper end so that the protrusion of the fixing block can be inserted therein. The shaft support bracket is installed to be inserted between the first and second extension plates so as to minimize the separation distance between the side carrier roller and the center carrier roller, and the first and second extension plates when the pivot frame is tilted. Belt conveyor characterized in that the cushioning member is installed so that no damage occurs in the contact portion.

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