Replaceable friction carrier roller

Abstract

The utility model relates to the technical field of friction carrier rollers, and discloses a replaceable friction carrier roller which comprises a bottom frame and a friction carrier roller body, a base is fixedly installed on the inner bottom wall of the bottom frame, and a swing downward moving assembly facilitating replacement of the friction carrier roller body is arranged on the base. According to the replaceable friction carrier roller, the swing downward moving assembly is arranged, after the swing downward moving assembly is used, movable blocks on the two sides get close to each other, a supporting rod and a movable rod gradually move to be in an approximately-horizontal state, and a side plate is fixedly installed on the movable rod, then gradually moves to be in the approximately-horizontal state along with the movable rod and moves downwards to be away from a conveying belt; the top plate moves downwards to be away from the conveying belt, a large space is formed between the friction carrier roller body on the top plate and the conveying belt and between the friction carrier roller body on the side plate and the conveying belt, then the old friction carrier roller body is taken down from the supporting block, the new friction carrier roller body is placed on the supporting block again, and therefore the friction carrier roller body is conveniently replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of friction idlers, in particular to a replaceable friction idler. Background Technique

[0002] Idlers are important components of belt conveyors. There are many types and large quantities. They can support the weight of the conveyor belt and materials. They account for 35% of the total cost of a belt conveyor and generate more than 70% of the resistance. Therefore, the quality of idlers is particularly important. There are two types: steel and plastic. The function of the idler is to support the weight of the conveyor belt and materials.

[0003] At present, the friction idler is placed on the mounting frame, and the mounting frame is fixed by screws. Since the friction idler placed on the mounting frame does not have a corresponding adjustment structure, the friction idler after installation is always in contact with the conveyor belt. If the friction idler is damaged and needs to be replaced, the contact with the conveyor belt will prevent the friction idler from being taken out. If the screws are unscrewed, the friction idler can only be replaced by pulling out the mounting frame together, which brings inconvenience to the replacement of the friction idler. For this reason, a replaceable friction idler is proposed. Content of the Utility Model

[0004] In view of the deficiencies of the prior art, the utility model provides a replaceable friction idler, which has the advantage of being convenient for replacing the friction idler.

[0005] To achieve the above purpose of being convenient for replacing the friction idler, the utility model provides the following technical solution: a replaceable friction idler, including a chassis and a friction idler body. A base is fixedly installed on the inner bottom wall of the chassis, and a swing-down component for conveniently replacing the friction idler body is arranged on the base;

[0006] The swing-down component includes a support rod, a bolt column, a movable rod, a movable block, a bidirectional lead screw, a top plate and a side plate. The support rod is hinged inside the base. The bolt column passes through the support rods on the front and rear sides and is rotatably connected to the support rods. The movable rod is rotatably connected to the outer surface of the bolt column. The movable block is arranged on the outer surface of the bolt column. The bidirectional lead screw is threadedly connected to the movable block. The top plate is rotatably connected between the opposite sides of the movable rods on the front and rear sides. The side plates are fixedly installed on the side walls of the movable rods.

[0007] Further, the support rod and the movable rod have the same length. The support rod is located outside the movable rod. A fastening nut is threadedly connected to the outer surface of the bolt column.

[0008] Further, the bidirectional lead screw penetrates through the movable block. The side plates are located on both sides of the top plate. Connecting bolts are inserted through the movable rod, the top plate and the side plate. A connecting nut is threadedly connected to the outer surface of the connecting bolt.

[0009] Further, support blocks are fixedly installed on both the top plate and the side plates. Ear grooves are formed in the support blocks, and the friction roller body is assembled in the inner walls of the ear grooves. A protective ring that contacts the support block is arranged on the outer surface of the friction roller body.

[0010] Further, mounting holes are formed in the bottom wall of the chassis and outside the base. Driving blocks are fixedly connected to both ends of the bidirectional lead screw. Driving grooves are formed in the side walls of the driving blocks, and the driving grooves are in the shape of hexagonal prisms.

[0011] Compared with the prior art, the present utility model provides a replaceable friction roller, which has the following beneficial effects:

[0012] For this replaceable friction roller, by arranging a swinging and descending assembly, after the swinging and descending assembly is used, the movable blocks on both sides approach each other, and the support rod and the movable rod gradually move to a state close to horizontal. Since the side plate is fixedly installed with the movable rod, it gradually moves to a state close to horizontal and moves downward away from the conveyor belt at this time. The top plate also moves downward away from the conveyor belt, so that there is a large space between the friction roller body on the top plate and the friction roller body on the side plate and the conveyor belt. Then, the old friction roller body is removed from the support block, and the new friction roller body is placed on the support block again, thus realizing the convenient replacement of the friction roller body. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a front three-dimensional schematic diagram of the structure of the present utility model;

[0014] Figure 2 is an upper three-dimensional schematic diagram of the structure of the present utility model;

[0015] Figure 3 is a side three-dimensional schematic diagram of the structure of the present utility model.

[0016] In the figure: 1 chassis, 2 friction roller body, 3 base, 4 swinging and descending assembly, 41 support rod, 42 bolt column, 43 movable rod, 44 movable block, 45 bidirectional lead screw, 46 top plate, 47 side plate, 5 support block, 6 ear groove, 7 protective ring, 8 mounting hole, 9 driving block, 10 driving groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0018] Please refer to Figures 1-3, A replaceable friction idler, comprising a chassis 1 and a friction idler body 2. The friction idler body 2 is used to support the weight of the conveyor belt and the materials. A base 3 is fixedly installed on the inner bottom wall of the chassis 1. An installation hole 8 is provided on the bottom wall of the chassis 1 and outside the base 3, which is conducive to the installation and disassembly of the chassis 1.

[0019] Please refer to Figures 1-3 , A swinging and descending assembly 4 is provided on the base 3 to facilitate the replacement of the friction idler body 2. The swinging and descending assembly 4 includes a support rod 41, a bolt column 42, a movable rod 43, a movable block 44, a bidirectional lead screw 45, a top plate 46 and a side plate 47. The support rod 41 is hinged inside the base 3 and can rotate around the base 3. The bolt column 42 passes through the support rods 41 on the front and back sides and is rotatably connected to the support rods 41. A fastening nut is threadedly connected to the outer surface of the bolt column 42 to connect the support rods 41 on the front and back sides to rotate synchronously. The movable rod 43 is rotatably connected to the outer surface of the bolt column 42 and can rotate around the outer surface of the bolt column 42. The lengths of the support rod 41 and the movable rod 43 are equal, and the support rod 41 is located outside the movable rod 43.

[0020] Moreover, the movable block 44 is arranged on the outer surface of the bolt column 42. The bidirectional lead screw 45 is threadedly connected in the movable block 44. The movable block 44 is threadedly connected to the forward and reverse threads on the outer surface of the bidirectional lead screw 45. When the bidirectional lead screw 45 rotates, it can drive the movable blocks 44 on both sides to approach or separate from each other. The bidirectional lead screw 45 penetrates through the movable block 44. The top plate 46 is rotatably connected between the opposite sides of the movable rods 43 on the front and back sides, enabling the movable rods 43 on the front and back sides to move synchronously.

[0021] At the same time, the side plate 47 is fixedly installed on the side wall of the movable rod 43 and can swing along with the movable rod 43. When the movable rod 43 moves to an almost horizontal state and descends and the top plate 46 descends, the friction idler body 2 does not contact the conveyor belt, leaving a large space between the friction idler body 2 and the conveyor belt, thus facilitating the removal and replacement of the friction idler body 2. The side plates 47 are located on both sides of the top plate 46. Connecting bolts are inserted through the movable rod 43, the top plate 46 and the side plates 47, and connecting nuts are threadedly connected to the outer surface of the connecting bolts.

[0022] Among them, support blocks 5 are fixedly installed on both the top plate 46 and the side plates 47. Ear grooves 6 are provided on the support blocks 5. The friction idler body 2 is assembled in the inner wall of the ear grooves 6. The friction idler body 2 is assembled in a plug-in manner. A protective ring 7 in contact with the support block 5 is provided on the outer surface of the friction idler body 2 to reduce damage to the side wall of the friction idler body 2.

[0023] In addition, driving blocks 9 are fixedly connected to both ends of the bidirectional lead screw 45. Driving grooves 10 are formed in the side walls of the driving blocks 9. The end of the motor output shaft is inserted into the driving groove 10. After the motor is started, with the rotation of the output shaft, the bidirectional lead screw 45 is driven to rotate, and the replacement work of the friction roller body 2 is gradually carried out. The ends of the output shaft and the driving groove 10 are both in the shape of a hexagonal prism.

[0024] When this embodiment is in use, the end of the motor output shaft is inserted into the driving groove 10. When the motor is started, the bidirectional lead screw 45 rotates, and the movable blocks 44 on both sides move closer to each other. The bolt columns 42 pull the support rods 41 and the movable rods 43 on both sides to gradually move into a state close to horizontal. At this time, the side plates 47 fixedly installed with the movable rods 43 move into a horizontal state accordingly. Since the support rods 41 and the movable rods 43 move downward, the top plate 46 and the friction roller body 2 on the side plate 47 are driven to move downward accordingly, leaving a large space between the friction roller body 2 and the conveyor belt. The old friction roller body 2 is taken out from the support block 5, and the new friction roller body 2 is reinserted into the inner wall of the ear groove 6. The motor is started in reverse. As the bidirectional lead screw 45 rotates in the reverse direction, the movable blocks 44 on both sides move away from each other. The bolt columns 42 pull the support rods 41 and the movable rods 43 on both sides to gradually move into an inclined state. After the new friction roller body 2 contacts the conveyor belt, it supports and conveys the conveyor belt, thus realizing the replacement of the friction roller body 2.

[0025] The beneficial effects of the above embodiment are as follows:

[0026] For this replaceable friction roller, by setting the swinging and descending assembly 4, after the swinging and descending assembly 4 is used, the movable blocks 44 on both sides move closer to each other, and the support rods 41 and the movable rods 43 gradually move into a state close to horizontal. Since the side plates 47 are fixedly installed with the movable rods 43, they gradually move into a state close to horizontal and move downward away from the conveyor belt at this time. The top plate 46 also moves downward away from the conveyor belt, so that there is a large space between the friction roller body 2 on the top plate 46 and the friction roller body 2 on the side plate 47 and the conveyor belt. Then, the old friction roller body 2 is removed from the support block 5, and the new friction roller body 2 is placed back on the support block 5, thus realizing the convenient replacement of the friction roller body 2.

[0027] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A replaceable friction roller, comprising a base frame (1) and a friction roller body (2), wherein a base (3) is fixedly mounted on the inner bottom wall of the base frame (1), characterized in that: The base (3) is provided with a swinging downward moving assembly (4) for facilitating replacement of the friction roller body (2); The swing downward moving assembly (4) comprises a support rod (41), a bolt column (42), a movable rod (43), a movable block (44), a bidirectional screw rod (45), a top plate (46) and a side plate (47); the support rod (41) is hinged on the inner side of the base (3); the bolt column (42) passes through the support rods (41) on the front and rear sides and is rotatably connected to the support rods (41); the movable rod (43) is rotatably connected to the outer surface of the bolt column (42); the movable block (44) is arranged on the outer surface of the bolt column (42); the bidirectional screw rod (45) is threadedly connected in the movable block (44); the top plate (46) is rotatably connected between the opposite sides of the movable rod (43) on the front and rear sides; and the side plate (47) is fixedly mounted on the side wall of the movable rod (43).

2. The replaceable friction roller according to claim 1, characterized in that: The support rod (41) and the movable rod (43) are of equal length, the support rod (41) is located outside the movable rod (43), and the outer surface of the bolt column (42) is threadedly connected with a fastening nut.

3. The replaceable friction roller according to claim 1, characterized in that: The bidirectional screw rod (45) passes through the movable block (44), the side plates (47) are located on both sides of the top plate (46), and connecting bolts are inserted through the movable rod (43), the top plate (46) and the side plates (47). The outer surface of the connecting bolt is threadedly connected with a connecting nut.

4. The replaceable friction roller according to claim 1, characterized in that: A support block (5) is fixedly mounted on the top plate (46) and the side plate (47), an ear groove (6) is provided on the support block (5), the friction roller body (2) is assembled in the inner wall of the ear groove (6), and a protective ring (7) in contact with the support block (5) is provided on the outer surface of the friction roller body (2).

5. The replaceable friction roller according to claim 1, characterized in that: A mounting hole (8) is provided on the bottom wall of the base frame (1) and located outside the base (3); both ends of the bidirectional screw rod (45) are fixedly connected to a driving block (9); a driving groove (10) is provided on the side wall of the driving block (9); and the driving groove (10) is in the shape of a hexagonal prism.

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