Middle driving and tensioning forward and reverse rotation device of belt conveyor

Abstract

The utility model discloses a belt conveyor middle driving and tensioning forward and reverse rotation device which comprises a transmission drum frame, a transmission drum and a driving device, the transmission drum is installed on the transmission drum frame and connected with the driving device, and the belt conveyor middle driving and tensioning forward and reverse rotation device is characterized by further comprising a tensioning support which is divided into an upper layer and a lower layer, the lower layer is provided with a surface-increasing turnabout drum, the turnabout drum is arranged on a drum base, the drum base is in sliding connection with a tensioning support, and the drum base is connected with a spiral tensioning device. The transmission drum frame and the spiral tensioning frame are manufactured into a whole, the tensioning support and the spiral pull rod are combined, installation and use are convenient, and installation accuracy and bearing capacity are improved. The wrap angle of the transmission drum and the belt can be adjusted and increased by adopting the surface-increasing turnabout drum, so that the belt is tensioned, and the belt is further prevented from loosening and slipping.

Description

TECHNICAL FIELD

[0001] The utility model relates to a belt conveyor middle part drive and tensioning positive and negative rotation device belongs to belt conveying technical field. BACKGROUND

[0002] The belt conveyor is a general series product, and can be widely used in coal, electric power, metallurgy, chemical industry, machinery, grain, light industry, port and building material industries. 3 The belt conveyor is a general series product, and can be widely used in coal, electric power, metallurgy, chemical industry, machinery, grain, light industry, port and building material industries.

[0003] A belt conveyor middle part screw tensioning device is disclosed in Chinese patent CN212100618U. It contains a belt body, characterized by: a rack, a redirection roller I, a redirection roller II, a redirection roller III and an adjusting roller; the rack top side is provided with a redirection roller I and a redirection roller II, the inside of the rack is provided with a redirection roller III below the redirection roller I and an adjusting roller below the redirection roller II, and the adjusting roller is located on the side of the redirection roller II away from the redirection roller I; the belt body is wound from the top of the redirection roller I in sequence, the redirection roller I, the redirection roller III, the adjusting roller and the redirection roller II; the axes of the redirection roller I, the redirection roller II, the redirection roller III and the adjusting roller are parallel; the utility model effectively solves the problem of large space occupation of the existing belt conveyor adjusting mechanism. This structure is not stable enough for a belt machine with high power, and it is inconvenient to adjust. SUMMARY

[0004] The utility model discloses a belt conveyor middle part drive and tensioning positive and negative rotation device, solve the belt conveyor operation instability, belt loosening, skidding and other problems.

[0005] The utility model discloses the following technical scheme: a belt conveyor middle part drive and tensioning positive and negative rotation device, including transmission drum frame, transmission drum and drive arrangement, transmission drum is installed on transmission drum frame, transmission drum connects drive arrangement, still include tensioning support, tensioning support divides into 2 layers of upper and lower, and the upper layer is equipped with the redirection roller, and the lower layer is equipped with the redirection roller of increasing surface, and the redirection roller is arranged on the drum base, and the drum base is connected with the tensioning support slidingly, and the drum base is connected spiral tensioning device.

[0006] The screw tensioning device comprises a screw pull rod, one end of the screw pull rod is provided with a thread, the thread is connected with a screw hole on the drum base, and the other end of the screw pull rod is movably connected to the side of the tensioning support away from the drum base.

[0007] The driving device comprises a driving device frame and a hollow shaft reduction motor, the hollow shaft reduction motor is installed on the driving device frame, the output end of the hollow shaft reduction motor is connected with the transmission drum, and the hollow shaft reduction motor drives the transmission drum to rotate to realize bidirectional transportation.

[0008] The tensioning support is provided with a sliding groove at the lower layer, and the base of the face-increasing redirecting drum is connected with the sliding groove through bolts.

[0009] The transmission drum is wound with a conveying belt, and the conveying belt is wound with the redirecting drum, the conveying belt and the face-increasing redirecting drum from top to bottom.

[0010] Compared with the prior art, the transmission drum frame and the screw tensioning frame are integrated, the tensioning support and the screw pull rod are combined, the installation is convenient, the installation precision and the bearing capacity are improved, the face-increasing redirecting drum can adjust the wrap angle of the transmission drum and the belt to realize the tensioning of the belt, and the belt is prevented from loosening and slipping. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a structural schematic view of the utility model;

[0012] Figure 2 It is a connection schematic view of the transmission drum and the driving device;

[0013] Figure 3 It is a connection schematic view of the face-increasing redirecting drum and the tensioning support;

[0014] Figure 4 It is a structural schematic view of the sliding groove on the tensioning support. DETAILED DESCRIPTION

[0015] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. EMBODIMENT

[0016] A belt conveyor middle part driving and tensioning positive and negative rotation device, like Figures 1-4As shown, it comprises a transmission roller frame 1, a transmission roller 2 and a driving device 3, the transmission roller 2 is installed on the transmission roller frame 1, the transmission roller 2 is connected with the driving device 3, further comprising a tensioning support 4, the tensioning support 4 is divided into two layers, the upper layer is provided with a redirecting roller 5, the lower layer is provided with a face-increasing redirecting roller 6, the redirecting roller 5 is arranged on a roller base 7, the roller base 7 is slidably connected with the tensioning support 4, and the roller base 7 is connected with a screw tensioning device 8.

[0017] The screw tensioning device 8 comprises a screw pull rod 81, one end of the screw pull rod 81 is provided with a thread, and the thread is connected with a screw hole on the roller base 7, and the other end of the screw pull rod 81 is movably connected with the tensioning support 4 on the side away from the roller base 7.

[0018] The transmission roller 2 is wound with a conveying belt 9, and the conveying belt 9 is sequentially wound on the redirecting roller 5, the conveying belt 9 and the face-increasing redirecting roller 6 from top to bottom.

[0019] In use, the redirecting roller 5 and the face-increasing redirecting roller 6 can tension the belt conveying, the screw pull rod 81 of the screw tensioning device 8 is rotated to move the roller base 7 and the redirecting roller 5 left and right, so as to adjust the tension of the belt, the screw pull rod 81 is more convenient to adjust, is not easy to slip, and can be applied to a higher-power belt conveying mechanism. Embodiment

[0020] The driving device 3 comprises a driving device frame 31 and a hollow shaft reduction motor 32, the hollow shaft reduction motor 32 is installed on the driving device frame 31, the output end of the hollow shaft reduction motor 32 is connected with the transmission roller 2, and the hollow shaft reduction motor 32 drives the transmission roller 2 to rotate to realize bidirectional transportation. Embodiment

[0021] Further, the lower layer of the tensioning support 4 is provided with a sliding groove 41, and the base 61 of the face-increasing redirecting roller 6 is connected with the sliding groove 41 through a bolt 42. The base 61 of the face-increasing redirecting roller 6 can move left and right along the sliding groove 41, the position of the face-increasing redirecting roller 6 can be adjusted, the contact area of the conveying belt 9 and the transmission roller 2 is adjusted, and the belt loosening and slipping are further prevented.

[0022] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A drive and tensioning forward and reverse reversing device for a belt conveyor, comprising a drive roller frame (1), a drive roller (2), and a drive device (3), wherein the drive roller (2) is mounted on the drive roller frame (1) and the drive roller (2) is connected to the drive device (3), characterized in that: It also includes a tensioning support (4), the tensioning support (4) is divided into two layers, the upper layer is provided with a redirection roller (5), and the lower layer is provided with a face-increasing redirection roller (6); the redirection roller (5) is arranged on a roller base (7), the roller base (7) is in sliding connection with the tensioning support (4), and the roller base (7) is connected with a screw tensioning device (8).

2. The central driving and tensioning reversing device of the belt conveyor according to claim 1, characterized in that: The screw tensioning device (8) comprises a screw pull rod (81), one end of the screw pull rod (81) is provided with a thread, the thread is connected with a screw hole on the roller base (7), and the other end of the screw pull rod (81) is movably connected to one side of the tensioning support (4) away from the roller base (7).

3. The central drive and tensioning reversing device for belt conveyors according to claim 1, characterized in that, The driving device (3) comprises a driving device frame (31) and a hollow shaft reduction motor (32), the hollow shaft reduction motor (32) is installed on the driving device frame (31), the output end of the hollow shaft reduction motor (32) is connected with the transmission roller (2), and the hollow shaft reduction motor (32) works to drive the transmission roller (2) to rotate and realize bidirectional transportation.

4. The central drive and tensioning reversing device for belt conveyors according to claim 1, characterized in that, The lower layer of the tensioning support (4) is provided with a sliding groove (41), and the base (61) of the face-increasing redirection roller (6) is connected with the sliding groove (41) through bolts (42).

5. A central drive and tensioning reversing device for a belt conveyor according to claim 1, characterized in that, The transmission roller (2) is wound with a conveying belt (9), and the conveying belt (9) is wound with the redirection roller (5), the conveying belt (9) and the face-increasing redirection roller (6) from top to bottom.

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