Automatic deviation correcting device used in climbing conveying belt ribbon state

Abstract

The utility model discloses an automatic deviation rectifying device used in a ribbon state of a climbing conveying belt, which is arranged right above an arcing climbing section of the conveying belt and comprises a deviation rectifying roller set, a carrier roller support, a rotating shaft column, a supporting arm and a supporting seat, the carrier roller support is rotatably hung on a rack through the rotating shaft column, the symmetric center of the carrier roller support is located in the rotation center of the rotating shaft column, and the supporting arm is arranged on the supporting seat. The tail end of the support arm is connected with the support guide structure; the deviation rectifying roller set and the conveying carrier roller set are the same in structure and are arranged up and down in a mirror symmetry mode. The automatic deviation correcting device can limit the ribbon quantity, and meanwhile, the centering operation of the conveying belt can be kept in the ribbon floating process; when the conveying belt deviates in a ribbon state, the deviation rectifying roller set passively rotates under the action of sliding friction force generated by the ribbon, a certain included angle is formed between the deviation rectifying roller set and the conveying belt, the conveying belt is promoted to automatically run in a centering mode, the purpose of automatic dynamic deviation rectifying is achieved, and therefore the maintenance cost of the belt conveyor is effectively reduced, and the service life of the conveying belt is prolonged.

Description

Technical Field

[0001] The utility model relates to the field of conveyors, in particular to an automatic deviation-correcting device for a climbing conveyor belt in a streamer state. Background Art

[0002] When arranging the process equipment for bulk material yards, the stacker and reclaimer and belt conveyor need to work together to enter and exit the material yard. In the process of loading and unloading materials, the belt conveyor belt of the material yard will basically not stream under the pressure of the material. However, when the stacker and reclaimer are close to the head area of ​​the belt conveyor during the stacking operation, the change in the tension of the conveyor belt is likely to cause streamering. During the streamering period, the conveyor belt lacks the operation of the load-bearing section deviation correction device, which is easy to deviate, causing damage to the equipment and conveyor belt, and thus easily causing safety accidents. In order to prevent the streamer from affecting the operation of the equipment, the existing design generally sets a belt pressure wheel at the climbing arc starting point to ensure the normal operation of the stacker and reclaimer in the area before the arc starting point. However, the deviation problem of the conveyor belt during the streamering period has not been solved. This problem restricts the comprehensive utilization of the material yard space and the safe operation of the equipment. Therefore, in response to the problem of the belt conveyor belt deviation, an automatic deviation correction device that can safely operate the conveyor belt in the streamer state has been developed and designed. Utility Model Content

[0003] The purpose of the utility model is to overcome the defects of the prior art and provide an automatic deviation correction device for a climbing conveyor belt in a streamer state, so as to solve one or more problems raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the technical solution of the utility model is as follows:

[0005] The invention relates to an automatic deviation-correcting device for a climbing conveyor belt in a streamer state. The automatic deviation-correcting device is arranged just above the arc-starting climbing section of the conveyor belt, and comprises a deviation-correcting roller group, a roller support, a rotating shaft column, a support arm and a support seat. The deviation-correcting roller group is installed below the roller support, and the roller support can be rotatably hoisted on the upper crossbeam of the frame through the rotating shaft column at its upper end. The symmetry center of the roller support is located on the rotation center of the rotating shaft column. Support arms are respectively arranged on both sides of the roller support, and support seats are respectively arranged on both sides of the frame. A support guide structure is arranged on the support seat, and the end of the support arm is connected to the support guide structure and can rotate and slide relative to the plane to support the deflection adjustment movement of the roller support and the guide roller support; the deviation-correcting roller group has the same structure as the conveying roller group, and both are constructed to form a groove structure. The deviation-correcting roller group and the conveying roller group are arranged up and down in a mirror-symmetrical manner.

[0006] Furthermore, the deviation-correcting roller group includes a transverse roller and two oblique rollers rotatably arranged on a roller bracket, the transverse roller is arranged horizontally, and the two oblique rollers are symmetrically arranged on both sides of the symmetry center, and the roller bracket is provided with a U-shaped slot for quickly inserting the transverse roller and the two oblique rollers, and a pressure plate is arranged on the notch of the U-shaped slot.

[0007] Furthermore, the support guide structure includes a support groove and a guide hole. The support groove is arranged on the inner side surface of the support seat. The guide hole is an elongated arc-shaped hole structure, which is opened on the upper end surface or the lower end surface of the support seat and passes through the support groove. The center of the guide hole is located on the rotation center. The end of the support arm can be slidably inserted into the support groove, and a guide column is vertically arranged on the end thereof. The guide column is penetrated in the guide hole and is used for deflection adjustment of the guide roller bracket.

[0008] Furthermore, two lifting mechanisms are fixedly arranged on both sides of the frame, the two lifting mechanisms are symmetrically located on both sides of the rotation center, and the support seat is arranged at the top of the lifting mechanism.

[0009] Furthermore, a guide wheel group is arranged on the back of the support seat, and a guide track is vertically arranged on the column of the frame. The guide wheel group is at least a set of guide wheel pairs, and the guide wheel pairs cooperate with the guide tracks to laterally limit the support seat and guide the vertical lifting of the support seat.

[0010] Furthermore, two protection switches are provided on the adjustable clamp on one side column of the frame. The two protection switches are respectively located directly above and directly below the support seat and are used to set the upper limit point and the lower limit point of the support seat. The protection switch feeds back the trigger signal to the lifting mechanism.

[0011] Compared with the prior art, the automatic deviation correction device for a slope conveyor belt in a streamer state of the utility model has the following beneficial effects:

[0012] The automatic deviation-correcting device is arranged just above the arc-starting climbing section of the conveyor belt. It can limit the amount of ribbon when the conveyor belt is unloaded, and reduce the additional force of the conveyor belt on the conveyor equipment structure. At the same time, the roller bracket is constructed to have the same structure as the conveying roller group and is mirror-set, which is conducive to adapting to the conveyor belt structure and keeping the conveyor belt in the center during the ribbon process. When the conveyor belt deviates in the ribbon state, the deviation-correcting roller group is passively rotated under the action of the sliding friction force generated by the ribbon, and forms a certain angle with the conveyor belt, prompting the conveyor belt to automatically run towards the center, so as to achieve the purpose of automatic dynamic deviation correction, thereby effectively reducing the maintenance cost of the belt conveyor and extending the service life of the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the assembly structure diagram of the automatic deviation correction device of the utility model

[0014] Figure 2 for Figure 1 A three-dimensional diagram of the structure of the middle lifting seat.

[0015] In the figure: 1. frame; 11. upper crossbeam; 12. guide rail; 2. conveying roller group; 3. automatic deviation correction device; 31. roller bracket; 32. inclined roller; 33. transverse roller; 34. support arm; 35. guide column; 36. shaft column; 4. lifting mechanism; 41. lifting cylinder; 42. support seat; 421. support groove; 422. guide hole; 423. guide wheel group; 5. protection switch. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only the best embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] An automatic deviation-correcting device for a climbing conveyor belt in a streamer state is suitable for climbing transportation of a belt conveyor with an unloaded working condition. It is generally arranged behind the conveyor belt pressure wheel and directly above the arc-starting climbing section of the conveyor belt. It is arranged on a frame 1. The frame 1 can be an independent frame with an independent foundation, or a combined frame with an intermediate frame of a belt conveyor as an integral structure. The automatic deviation-correcting device 3 can be used to construct a conveyor roller group 2 forming a trough-shaped support structure, and the conveyor roller group 2 supports a trough-shaped conveyor belt to form a trough;

[0018] like Figure 1-Figure 2 As shown, the automatic deviation-correcting device 3 includes a deviation-correcting roller group, a roller support 31, a rotating shaft column 36, a support arm 34 and a support seat 42. The roller support 31 is an integrated structure. A rotating shaft column 36 is vertically fixed on the symmetry center of the roller support 31. The roller support 31 is rotatably and slidably suspended under the upper beam 11 of the frame 1 through the rotating shaft column 36, and is used to rotate the deviation-correcting conveyor belt;

[0019] Since the aggregate trough formed by the trough-type conveyor belt is generally a symmetrical structure, the trough surfaces on both sides are bent to form a material-blocking structure, which can be an inclined plane or a transition formed by multiple inclined planes. Therefore, the deviation-correcting roller group is arranged directly above the conveying roller group 2. The two are mirror-symmetrical structures and are arranged the same on the roller bracket 31. Therefore, corresponding to the roller composition of the conveying roller group 2, the deviation-correcting roller group includes at least one transverse roller 33 and two inclined rollers 32. The transverse roller 33 is used to limit the maximum belt height of the floating height setting height. When the conveyor belt is floating, the two outermost inclined belt surfaces first contact the outermost inclined roller 32 surface of the deviation-correcting roller group. If the conveyor belt runs correctly in the center , when the conveyor belt is in the streamer state, the two sides of the conveyor belt are in uniform contact with the two inclined rollers 32, the forces on both sides are balanced, the horizontal rollers 33 and the inclined rollers 32 are limited together, the conveyor belt streamers are controlled within a suitable range, and a certain tensioning effect is played, so that the conveyor belt in the climbing position has a certain contact area with the bottom conveying roller group 2; when the conveyor belt deviates from the streamer, the inclined rollers 32 on both sides are not only subjected to rolling friction, but also the inclined rollers 32 on the deviated side will generate a large sliding friction under the pressure of the conveyor belt moving forward, and the unbalanced sliding friction drives the roller bracket 31 to rotate around the rotating shaft column 36, and the roller bracket 31 deflects, driving the conveyor belt in the streamer state to automatically return to the center for deviation correction;

[0020] The support of the roller bracket 31 should meet its rotational freedom requirements, such as Figure 1 As shown, support arms 34 are symmetrically arranged on both sides thereof, connected to support seats 42 mounted on both sides of the frame 1, and support guide structures are arranged on the support seats 42 to allow the support arms 34 to rotate along the rotation center of the rotating shaft column 36; the support guide structure can be an arc bottom support groove, which is arranged on the inner side of the support seat 42, and the groove bottom surface of the arc bottom support groove is an arc bottom surface concentric with the rotation center of the rotating shaft column 36, and the end of the support arm 34 is an arc end surface adapted to the arc bottom surface, and the two ends of the support arm 34 are symmetrically inserted into the arc bottom support groove for support, and are deflected and adjusted under the guidance of the arc bottom surface; the support guide structure is preferably a combination of a support groove 421 and a guide hole 422, as shown in FIG. Figure 1 and 2As shown, the end of the support arm 34 is inserted into the support groove 421, and the support groove 421 is opened on the inner side of the support seat 42. In order to support the plane rotation and sliding of the support arm 34, the support groove 421 should have sufficient space in the groove. In addition, it is necessary to limit the height direction of the roller bracket 31 to prevent the roller bracket 31 from moving when the conveyor belt streamers are transported. The groove height of the support groove 421 should match the arm thickness of the support arm 34. The guide hole 422 is a long arc hole structure concentric with the rotation center of the shaft column 36, which can be opened on the upper end face or the lower end face of the support seat 42. The guide hole 422 vertically penetrates to the support groove 421. A guide column 35 is vertically arranged on the end of the support arm 34. The guide column 35 is penetrated in the guide hole 422, which is used to symmetrically limit the support arm 34 and guide the deflection adjustment of the roller bracket 31;

[0021] The conveying bracket is generally provided with a U-shaped slot structure for quickly inserting each roller of the conveying roller group 2. Each roller maintains rolling support under gravity and load conditions. Since the roller bracket 31 is inverted, in order to quickly insert the transverse roller 33 and the inclined roller 32, the roller bracket 31 is also provided with a U-shaped slot at the roller ends of the transverse roller 33 and the two inclined rollers 32 for quickly inserting. At the same time, the U-shaped slot should be detachably provided with a pressure plate with a covering slot; considering that the gap between adjacent rollers is small and it is inconvenient to install the pressure plate, a T-shaped slot can be provided on the roller bracket 31 between adjacent rollers along the slot width direction of the U-shaped slot, and a corresponding protrusion is provided on the pressure plate. The pressure plate is inserted into the gap from the side, and the protrusion cooperates with the T-shaped slot to limit the position, and the pressure plate extends to the slots of the U-shaped slot on both sides for blocking.

[0022] As a further technical solution, combined with the actual production operation on site, when the conveyor starts, the conveyor belt will be subjected to force and the streamer will bounce up and down. This is the normal streamer in the unstable state when the conveyor belt starts. The streamer force is large and the automatic deviation-correcting device 3 is easily damaged. The conveyor belt can quickly adjust itself and enter normal operation. It is not appropriate to restrict the streamer. Therefore, two lifting mechanisms 4 are fixedly arranged on both sides of the frame 1. The lifting mechanism 4 includes a lifting cylinder 41 and a support seat 42. The support seat 42 is located at the top of the lifting mechanism 4. The lifting cylinder 41 supports and can drive the support seat 42 to move up and down to adjust the position of the automatic deviation-correcting device 3. Before starting, the automatic deviation-correcting device 3 should be raised. When it enters a stable state, the anti-drifting height of the automatic deviation-correcting device 3 is adjusted according to the setting position of the automatic deviation-correcting device 3 and the control height of the streamer amount, so as to limit the streamer of the conveyor belt in the empty state of the conveyor and automatically and dynamically correct the deviation of the conveyor belt in normal operation.

[0023] In addition, in order to further guide the vertical movement of the support seat 42 and further limit the lateral deviation of the roller bracket 31 due to the unbalanced force, a guide wheel group 423 is provided on the back of the support seat 42. Figure 2As shown, the guide wheel group 423 is at least a set of guide wheel pairs, and guide rails 12 are vertically arranged on the columns on both sides of the frame 1. The guide rails 12 are clamped between the guide wheel pairs to reduce friction during lifting and lowering and ensure the reliability of the roller bracket 31 to correct the deviation.

[0024] As a further technical solution, two protection switches 5 are provided on one side column of the frame 1 to assist in determining the end points of the lifting stroke of the lifting cylinder 41, which correspond to the upper limit point and the lower limit point of the support seat 42. The protection switch 5 is connected to the column through a detachable and fixed claw, and is located directly above and below the support seat 42, so as to adjust the highest stroke position and the lowest stroke position of the automatic correcting device 3 according to the streamer conditions in the startup state and the normal working state, so as to avoid the automatic correcting device 3 being damaged by excessive streamer pressure; the highest stroke position corresponds to the limit streamer amount in the startup state, and the lifting mechanism 4 drives the support seat 42 to rise. After triggering the upper protection switch 5 located at the upper limit point, the protection switch 5 feeds back the trigger signal to the control valve of the lifting cylinder 41 to stop rising; similarly, the lowest stroke position corresponds to the control streamer amount in the normal working state, and the support seat 42 descends until the lower protection switch 5 on the lower limit point is triggered and stops.

[0025] The directional words "upper", "lower", "inner", "outer", "side", "horizontal" and so on mentioned in this article are described based on Figure 1-Figure 2 These terms are mainly used to better describe the present invention and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation;

[0026] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this utility model can be understood according to specific circumstances.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic deviation-correcting device for a slope conveyor belt in a streamer state, characterized in that: The automatic deviation correction device (3) is arranged just above the arc starting climbing section of the conveyor belt, and comprises a deviation correction roller group, a roller support (31), a rotating shaft column (36), a support arm (34) and a support seat (42). The deviation correction roller group is installed below the roller support (31). The roller support (31) can be rotatably hoisted on the upper crossbeam (11) of the frame (1) through the rotating shaft column (36) at its upper end. The symmetry center of the roller support (31) is located on the rotation center of the rotating shaft column (36). The two sides of the roller support (31) are The surfaces are respectively provided with support arms (34), the two sides of the frame (1) are respectively provided with support seats (42), the support seats (42) are provided with support guide structures, the ends of the support arms (34) are connected to the support guide structures and can rotate and slide relative to the plane to support the deflection adjustment movement of the roller bracket (31) and the guide roller bracket (31); the structure of the deviation correction roller group is the same as that of the conveying roller group (2), both of which are constructed to form a groove structure, and the deviation correction roller group and the conveying roller group (2) are arranged up and down in a mirror-symmetrical manner.

2. The automatic deviation-correcting device for a slope conveyor belt in a streamer state according to claim 1, characterized in that: The deviation correction roller group comprises a transverse roller (33) and two oblique rollers (32) rotatably arranged on a roller support (31); the transverse roller (33) is arranged horizontally; the two oblique rollers (32) are symmetrically arranged on both sides of the symmetry center; the roller support (31) is provided with a U-shaped slot for quickly inserting the transverse roller (33) and the two oblique rollers (32); a pressure plate is arranged on the notch of the U-shaped slot.

3. The automatic deviation-correcting device for a slope conveyor belt in a streamer state according to claim 1, characterized in that: The support guide structure comprises a support groove (421) and a guide hole (422). The support groove (421) is arranged on the inner side surface of the support seat (42). The guide hole (422) is an elongated arc-shaped hole structure, which is opened on the upper end surface or the lower end surface of the support seat (42) and passes through the support groove (421). The center of the guide hole (422) is located on the rotation center. The end of the support arm (34) can be slidably inserted into the support groove (421). A guide column (35) is vertically arranged on the end of the support arm (34). The guide column (35) is inserted into the guide hole (422) and is used for deflection adjustment of the guide roller bracket (31).

4. The automatic deviation-correcting device for a slope conveyor belt in a streamer state according to claim 3 is characterized in that: Two lifting mechanisms (4) are fixedly arranged on both sides of the frame (1), and the two lifting mechanisms (4) are symmetrically located on both sides of the rotation center, and the support seat (42) is located on the top of the lifting mechanism (4).

5. The automatic deviation-correcting device for a slope conveyor belt in a streamer state according to claim 4 is characterized in that: A guide wheel group (423) is arranged on the back of the support seat (42), and a guide track (12) is vertically arranged on the column of the frame (1). The guide wheel group (423) is at least one set of guide wheel pairs, and the guide wheel pairs cooperate with the guide track (12) to horizontally limit the support seat (42) and guide the vertical lifting of the support seat (42).

6. The automatic deviation-correcting device for a slope conveyor belt in a streamer state according to claim 4, characterized in that: Two protective switches (5) are adjustable and clamped on a column on one side of the frame (1). The two protective switches (5) are respectively located directly above and directly below the support seat (42) and are used to set the upper limit point and the lower limit point of the support seat (42). The protective switches (5) feed back a trigger signal to the lifting mechanism (4).

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