A small radius self-adjusting device for belt conveyor

Abstract

The present invention discloses a belt conveyor small radius self-adjusting device, comprising a frame, a lower roller group and an upper roller group, wherein the frame has a first horizontal frame, a second horizontal frame and a third horizontal frame, wherein the lower roller group is arranged on the first horizontal frame in the shape of a U-shaped groove, and the upper roller group is arranged on the second horizontal frame in the shape of a U-shaped groove, wherein an adjustment mechanism is arranged between the third horizontal frame and the upper roller group, and when the conveyor belt turns and the edge is folded and lifted, the adjustment mechanism moves to change the groove angle of the roller group. Since the present invention is designed to arrange an adjustment mechanism between the third horizontal frame and the upper roller group, when the conveyor belt turns and the edge is folded and lifted, the adjustment mechanism moves to change the groove angle of the roller group, thereby changing the clamping angle of the conveyor belt to the material, thereby preventing the material from spilling.

Description

Technical Field

[0001] The invention belongs to the technical field of belt conveyor turning, and in particular to the technical field of small-radius self-adjusting devices for belt conveyors. Background Art

[0002] Belt conveyors are widely used, and are commonly used in industries such as mining, metallurgy, building materials, and electricity. The turning radius of common belt conveyors is greater than 300m, and the turning angle is less than 23°. When the belt conveyor turns at a small radius, due to the elasticity and plastic deformation of the conveyor belt, the outer side of the conveyor belt will appear folded and tilted. At this time, the conveyed material will run out due to extrusion, that is, the material will be scattered. At the same time, the conveyor belt will bend, which greatly shortens its life. However, many industries are now restricted by the site and cannot use general belt conveyors. Some auxiliary measures need to be added, such as adding a new conveyor or using a roller-type turning device. However, a transfer station needs to be added at the corner, which has high costs and maintenance costs. Based on the applicant's technical disclosure book and the existing technical problems, technical features and technical effects in the background technology, the application technical scheme of the present invention is made. Summary of the invention

[0003] The technical problem to be solved by the present invention is that when the belt conveyor turns at a small radius, due to the elasticity and plastic deformation of the conveyor belt, the outer side of the conveyor belt will be folded and lifted, and the conveyed material will be squeezed out, that is, the material will be scattered. At the same time, the conveyor belt is bent, which affects the life of the conveyor belt.

[0004] In order to solve the above problems, the present invention provides a small radius self-adjusting device for a belt conveyor, comprising a frame, a lower roller group and an upper roller group, the frame having a first horizontal frame, a second horizontal frame and a third horizontal frame, the lower roller group is arranged on the first horizontal frame in the shape of a U-shaped groove, and the upper roller group is arranged on the second horizontal frame in the shape of a U-shaped groove, wherein an adjustment mechanism is arranged between the third horizontal frame and the upper roller group, and when the conveyor belt turns and the edge is folded and warped, the adjustment mechanism moves to change the groove angle of the roller group.

[0005] Since the present invention is designed to provide an adjustment mechanism between the third cross frame and the upper roller group, when the conveyor belt turns and the edge is folded and lifted, the adjustment mechanism moves to change the groove angle of the roller group, thereby changing the clamping angle of the conveyor belt to the material, thereby preventing the material from spilling.

[0006] Furthermore, the upper roller group includes a vertical roller for pressing the belt, left and right side rollers for adjusting the inclination angle of the conveyor belt, and a transverse roller for bottom support. The vertical roller consists of two rollers, one end of which is connected to the left and right side rollers through an L-shaped side support, and the other end is pressed on the conveyor belt.

[0007] Furthermore, the vertical roller and the supporting transverse roller are installed in the same plane, the lower part is supported by a column or a pillar, and the upper part is connected to the deviation adjustment mechanism. There are two vertical rollers, one end of which is connected to the left and right side rollers through an L-shaped side support, and the other end is pressed on the conveyor belt.

[0008] One end of the left and right side rollers are movably connected to the left and right ends of the second cross frame through roller brackets, and have active points. The other ends of the left and right side rollers are respectively connected to the deviation adjustment mechanism. When the deviation adjustment mechanism moves, the left and right side rollers can rotate around their respective active connection points.

[0009] Furthermore, the deviation adjustment mechanism includes a left connecting rod, a right connecting rod, a positioning pin and a slide rail with a long hole, one end of the left connecting rod is connected to the left roller, and the other end is connected to the right connecting rod through the positioning pin, one end of the right connecting rod is connected to the right roller, and the other end is connected to the left connecting rod through the positioning pin, one end of the slide rail is connected to the middle part of the third cross frame of the frame, and the other end is connected to the left and right connecting rods.

[0010] Furthermore, one end of the left connecting rod is set as a convex part with a pin hole, and one end of the right connecting rod is set as a U-shaped concave part with a pin hole. The convex part of the left connecting rod is inserted into the U-shaped concave part of the right connecting rod to form a connection, and the pin holes on the convex part and the U-shaped concave part are aligned, and the pin holes have the same diameter.

[0011] Furthermore, the long hole is used to connect the positioning pin to the slide rail and is designed as a long hole that passes through the front and back. The length of the long hole is smaller than the length of the slide rail. The positioning pin passes through the long hole and the pin holes of the left and right connecting rods and is connected to the slide rail. The positioning pin can carry the left and right connecting rods to slide up and down in the long hole of the slide rail.

[0012] Compared with the prior art, the deviation adjustment mechanism is designed to change the groove angle of the roller group, thereby changing the clamping angle of the conveyor belt to the material, thereby preventing the material from spilling, reducing the bending of the conveyor belt, and greatly improving the life of the conveyor belt.

[0013] In the present technical solution, a device with left and right connecting rods sliding up and down in the long holes of the slide rails and one end of the side rollers being movably connected to the second cross frame through a roller bracket, can change the groove angle of the roller group under the drive of the connecting rods. This is an important technical feature and has novelty, creativity and practicality in the field of belt conveyor turning technology. The terms in the present technical solution can be explained and understood using patent documents in this technical field. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the structure of the small radius self-adjusting device of the belt conveyor;

[0015] Figure 2 The state of the tape during small radius turns;

[0016] Figure 3 Schematic diagram of the structure when turning;

[0017] Figure 4 Schematic diagram of the connection between the connecting rod and the slideway;

[0018] Figure 5 Schematic diagram of the connection between the connecting rod and the side roller.

[0019] In the attached figure: 1-frame, 2-lower roller group, 3-upper roller group, 4-adjustment mechanism, 5-conveyor belt, 6-roller bracket

[0020] Wherein: the frame 1 comprises: 11-a first horizontal frame, 12-a second horizontal frame, 13-a third horizontal frame;

[0021] The upper roller group 3 includes: 31-vertical roller, 33-left roller, 34-right roller, 35-transverse roller, 36-side support;

[0022] The deviation adjustment mechanism 4 includes: 41 - left connecting rod, 411 - convex part, 42 - right connecting rod, 421 - concave part, 43 - positioning pin, 44 - long hole, 45 - slide rail. DETAILED DESCRIPTION

[0023] According to the Examination Guidelines, terms such as “having”, “including” and “comprising” used in the present invention should be understood as not dispensing with the existence or addition of one or more other elements or combinations thereof.

[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. In addition, unless otherwise specified, the equipment and materials used in the following examples are commercially available. If the processing conditions are not clearly stated, please refer to the purchased product manual or proceed according to conventional methods in the art.

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Figure 1 It is a structural schematic diagram of a small radius self-adjusting device for a belt conveyor, and this embodiment is specifically described in conjunction with the accompanying drawings.

[0029] In this embodiment, a belt conveyor small radius self-adjusting device includes a frame 1, a lower roller group 2 and an upper roller group 3. The frame has a first horizontal frame 11, a second horizontal frame 12 and a third horizontal frame 13. The lower roller group 2 is arranged on the first horizontal frame 11 in a U-shaped groove, and the upper roller group 3 is arranged on the second horizontal frame 12 in a U-shaped groove. It is characterized in that: a deviation adjustment mechanism 4 is arranged between the third horizontal frame 13 and the upper roller group 3. When the conveyor belt 5 turns and the edge is folded and tilted, the deviation adjustment mechanism 4 moves to change the groove angle of the roller group. The technical purpose is: when the conveyor belt turns and the edge is folded and tilted, the deviation adjustment mechanism moves to change the groove angle of the roller group, thereby changing the clamping angle of the conveyor belt to the material, thereby preventing the material from spilling.

[0030] In this embodiment, the upper roller group 3 includes a vertical roller 31 for pressing the belt, left and right side rollers 33 and 34 for adjusting the inclination angle of the conveyor belt, and a transverse roller 35 for bottom support. The vertical roller 31 is composed of two rollers, one end of which is connected to the left and right side rollers 33 and 34 through an L-shaped side support, and the other end is pressed on the conveyor belt 5. The left and right side rollers 33 and 34 are respectively connected to the left and right ends of the second cross frame 12 through roller brackets 6 at one end, and have a movable connection point, and the other end is respectively connected to the deviation adjustment mechanism 4. When the deviation adjustment mechanism 4 moves, the left and right side rollers 33 and 34 can rotate around their respective movable connection points. The technical purpose is: the side rollers 33 and 34 are movably connected at one end to the left and right ends of the second cross frame 12 respectively. When the connecting rod in the deviation adjustment mechanism 4 moves, the left and right side rollers 33 and 34 can be rotated around their respective movable connection points, thereby changing the groove angle of the upper roller group 3, and then changing the inclination of both sides of the conveyor belt, changing the clamping angle of the conveyor belt to the material, thereby achieving the purpose of preventing the material from spilling.

[0031] In this embodiment, the adjustment mechanism 4 includes a left connecting rod 41, a right connecting rod 42, a positioning pin 43 and a slide rail 45 with a long hole 44. One end of the left connecting rod 41 is connected to the left roller 33, and the other end is connected to the right connecting rod 41 through the positioning pin 43. One end of the right connecting rod 42 is connected to the right roller 34, and the other end is connected to the left connecting rod 41 through the positioning pin 43. One end of the slide rail 45 is connected to the middle part of the third cross frame 13 of the frame 1, and the other end is connected to the left and right connecting rods 41 and 42. The technical purpose is: the slide rail is fixed to the middle part of the frame, which is conducive to supporting the left and right connecting rods, and does not move with the movement of the left and right connecting rods, which is conducive to the symmetry and stability of the upper roller groove angle.

[0032] In this embodiment, one end of the left connecting rod 41 is provided with a convex portion 411 having a pin hole, and one end of the right connecting rod 42 is provided with a U-shaped concave portion 421 having a pin hole. The convex portion 411 of the left connecting rod 41 is inserted into the U-shaped concave portion 422 of the right connecting rod 42 to form a connection, and the convex portion 411 is aligned with the pin hole on the U-shaped concave portion 421, and the pin holes have the same diameter. The left and right connecting rods 41 and 42 and the slide rail 45 are connected together by a positioning pin 43. The technical purpose is: designing the concave and convex portions with pin holes on the left and right connecting rods is conducive to the connection of the left and right connecting rods, and designing the pin connection is conducive to the pin driving the connecting rod to slide smoothly on the slide rail.

[0033] In this embodiment, the long hole 44 is used to connect the positioning pin to the slide rail. The long hole 44 is designed to be a long hole that penetrates from front to back. The length of the long hole is less than the length of the slide rail. The positioning pin 43 passes through the long hole and the pin holes of the left and right connecting rods to connect to the slide rail 45. The positioning pin 43 can carry the left and right connecting rods to slide up and down in the long hole of the slide rail 45. The technical purpose is that the size of the long hole matches the slide rail, which is conducive to the positioning pin to slide smoothly in the long hole of the slide rail and fix the left and right connecting rods in the slide rail without falling off.

[0034] The working principle of the present invention is: when the belt conveyor turns, the extension force on the outer side of the belt increases, and the folding force when the belt turns is used to drive the change of the groove angle of the roller group, so as to realize the automatic adjustment of the groove angle of the roller group. When the conveyor belt turns right, for example, the conveyor belt on the outer side of the turn has a tendency to fold, thereby driving the vertical roller 31 and the side rollers 33 and 34 to move to the middle of the conveyor, and the left connecting rod 41 and the right connecting rod 42 are driven to slide upward along the slide rail 35. As the turning radius decreases, the turning angle decreases, and the upper roller group 3 finally presents a U-shaped groove structure. At the end of the turn, the bending tendency of the belt decreases, thereby driving the vertical roller 31 and the side rollers 33 and 34 to move to the outside of the conveyor, and the left connecting rod 41 and the right connecting rod 42 are driven to slide downward along the slide rail 35, and finally the upper roller group 3 returns to its initial state.

[0035] The present invention has the following characteristics:

[0036] 1. Due to the design, a deviation adjustment mechanism 4 is provided between the third cross frame 13 and the upper roller group 3. When the conveyor belt 5 turns and the edge is folded and lifted, the deviation adjustment mechanism 4 moves to change the groove angle of the roller group, thereby changing the clamping angle of the conveyor belt to the material, thereby preventing the material from spilling.

[0037] 2. Due to the design, one end of the side rollers 33 and 34 are movably connected to the left and right ends of the second cross frame 12 respectively. When the connecting rod in the deviation adjustment mechanism 4 moves, the left and right side rollers 33 and 34 can be driven to rotate around their respective movable connection points, thereby changing the groove angle of the upper roller group 3, and then changing the inclination of both sides of the conveyor belt.

[0038] 3. Due to the design, the slide rail is fixed on the middle part of the frame, which is conducive to supporting the left and right connecting rods. It does not move with the movement of the left and right connecting rods, which is conducive to the symmetry and stability of the upper roller groove angle.

[0039] 4. Due to the design, the concave and convex parts of the left and right connecting rods with pin holes are conducive to the connection of the left and right connecting rods. The design of the pin column connection is conducive to the pin column driving the connecting rod to slide smoothly on the slide rail.

[0040] 5. Due to the design, the size of the long hole matches the slide rail, which is conducive to the smooth sliding of the positioning pin in the long hole of the slide rail and the fixing of the left and right connecting rods in the slide rail to prevent them from falling off.

[0041] 6. Due to the design of the technical features of the present invention, the effects of the individual and combined technical features have been shown through experiments to have various performance indicators of the present invention that are at least 1.7 times the existing performance indicators, and have been evaluated to have good market value.

[0042] There are other technical features with left and right connecting rods moving in the slide rails to drive the side rollers to rotate and change the roller groove angles, which are all embodiments of the present invention, and the technical features of the above-mentioned embodiments can be combined arbitrarily. In order to meet the requirements of the Patent Law, Patent Implementation Rules and Examination Guidelines, all possible combinations of the technical features in the above-mentioned embodiments will no longer be described.

[0043] Therefore, in the field of belt conveyor turning technology, all technical contents including the left and right connecting rods moving in the slide rails to drive the side rollers to rotate and change the roller groove angles are within the protection scope of the present invention. The above embodiment is only one implementation form provided by the present invention. This turning technology can be extended to other turning self-adjusting technologies. In short, other variations of the scheme provided by the present invention, adding or reducing components or steps therein, or applying the present invention to other technical fields close to the present invention, all belong to the protection scope of the present invention.

Claims

1. A belt conveyor small radius self-adjusting device, comprising a frame (1), a lower roller group (2) and an upper roller group (3), wherein the frame has a first cross frame (11), a second cross frame (12) and a third cross frame (13), wherein the lower roller group (2) is arranged on the third cross frame (13) in a U-shaped groove, and the upper roller group (3) is arranged on the second cross frame (12) in a U-shaped groove, wherein: A deviation adjustment mechanism (4) is provided between the first horizontal frame (11) and the upper roller group (3); when the conveyor belt (5) turns and folds and tilts, the deviation adjustment mechanism (4) is subjected to force movement to change the groove angle of the roller group; The upper roller group (3) comprises a vertical roller (31) for pressing the belt, one at each end, a left roller (33) and a right roller (34) for adjusting the conveyor belt groove angle, and a transverse roller (35) for bottom support. The vertical roller (31) is two, one end of which is connected to the left roller (33) and the right roller (34) through an L-shaped side support (36), and the other end is pressed on the conveyor belt (5). One end of the left roller (33) and the right roller (34) are respectively movably connected to the left and right ends of the second cross frame (12) through roller brackets (6) and have active points. The other ends of the left roller (33) and the right roller (34) are respectively connected to the deviation adjustment mechanism (4). When the deviation adjustment mechanism (4) moves, the left roller (33) and the right roller (34) can rotate around their respective active connection points.

2. A belt conveyor small radius self-adjusting device according to claim 1, characterized in that: The deviation adjustment mechanism (4) comprises a left connecting rod (41), a right connecting rod (42), a positioning pin (43) and a slide rail (45) with a long hole (44); one end of the left connecting rod (41) is connected to the left roller (33), and the other end is connected to the right connecting rod (42) through the positioning pin (43); one end of the right connecting rod (42) is connected to the right roller (34), and the other end is connected to the left connecting rod (41) through the positioning pin (43); one end of the slide rail (45) is connected to the middle part of the first cross frame (11) of the frame (1), and the other end is connected to the left connecting rod (41) and the right connecting rod (42).

3. A belt conveyor small radius self-adjusting device according to claim 2, characterized in that: One end of the left connecting rod (41) is provided with a convex portion (411) having a pin hole, and one end of the right connecting rod (42) is provided with a U-shaped concave portion (421) having a pin hole. The convex portion (411) of the left connecting rod (41) is inserted into the U-shaped concave portion (421) of the right connecting rod (42) to form a connection. The pin holes on the convex portion (411) and the U-shaped concave portion (421) are aligned, and the pin holes on the convex portion (411) and the concave portion (421) have the same diameter.

4. A belt conveyor small radius self-adjusting device according to claim 3, characterized in that: The long hole (44) is used to connect the positioning pin (43) to the slide rail (45). The long hole (44) is designed to be a long hole that penetrates from front to back. The length of the long hole (44) is less than the length of the slide rail (45). The positioning pin (43) passes through the long hole (44) and is connected to the slide rail (45) through the pin holes on the left connecting rod (41) and the right connecting rod (42). The positioning pin (43) can carry the left connecting rod (41) and the right connecting rod (42) to slide up and down in the long hole (44) of the slide rail (45).

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