Adjustable spring impact idler set

Abstract

The utility model discloses an adjustable spring buffer carrier roller set, and relates to the technical field of carrier roller sets. The device comprises a base, fixing cylinders are symmetrically and fixedly installed in the middle of the base, and first springs are arranged in inner cavities of the two fixing cylinders. When materials are placed on a conveying belt, the weight acts on a first carrier roller and two second carrier rollers and is transmitted to a first spring through a connecting rod, buffering force of a traditional carrier roller set is fixed when the materials are changed, many defects exist, the carrier roller set can be adjusted according to different material flows and sizes, and when the buffering force of the springs needs to be adjusted, the buffering force of the first carrier roller and the buffering force of the second carrier roller need to be adjusted. An operator rotates the rotation adjusting mechanisms with hands, due to the fact that the two rotation adjusting mechanisms are connected through a chain, when one rotation adjusting mechanism rotates, the other rotation adjusting mechanism can rotate synchronously, the rotation adjusting mechanisms can change the acting relation between the rotation adjusting mechanisms and the bottom of the first spring, and therefore the compression degree of the first spring is adjusted, and the elastic potential energy of the spring is changed; and the buffering force of the spring can be adjusted.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of roller group, specifically, and particularly relates to an adjustable spring buffer roller group. BACKGROUND

[0002] The roller group is an important component of the belt conveyor, and is widely used in the material conveying system of many industries such as mines, ports, electric power, metallurgy and chemical industry. It is mainly composed of rollers, supports and related connecting parts. The roller is usually cylindrical and arranged on the conveying belt at a certain interval, which plays a key role in supporting the conveying belt and its load. In the material conveying process, the roller rotates around its axis to reduce the friction between the conveying belt and the roller, and to ensure the smooth and efficient operation of the conveying belt.

[0003] The spring buffering degree of the traditional roller group is fixed, and cannot be adjusted according to the change of the actual working condition. When the flow of the conveyed material is large and the material is large, the spring with fixed buffering degree cannot provide sufficient buffering force, which makes the impact force borne by the conveying belt too large, accelerates the wear of the conveying belt, and frequent replacement of the conveying belt not only increases the maintenance cost, but also causes production interruption and affects production efficiency.

[0004] At present, no effective solution has been proposed for the problems in the related art. CONTENT OF THE UTILITY MODEL

[0005] In view of the problems in the related art, the utility model provides an adjustable spring buffer roller group to overcome the above technical problems existing in the prior art.

[0006] To solve the above technical problems, the utility model is realized by the following technical scheme:

[0007] The utility model is an adjustable spring buffer roller group, which comprises a base, a fixed cylinder is symmetrically fixed and installed in the middle part of the base, a first spring is arranged in the inner cavity of each fixed cylinder, a connecting rod is fixedly installed at the top of the first spring, the connecting rod is slidingly installed on the fixed cylinder, a rotating adjusting mechanism is arranged at the bottom of each first spring, the rotating adjusting mechanisms are connected by a chain, a first roller is arranged between the connecting rods, a second roller is arranged at the end of each connecting rod away from each other, a support frame is arranged at the end of each second roller away from each other, the support frames are rotatably installed at the bottom of the base, a buffer mechanism is rotatably installed at the middle part of each support frame, and the other end of the buffer mechanism is rotatably installed on the base.

[0008] Further, the fixed cylinder is symmetrically provided with a sliding groove, the rotating adjusting mechanism comprises a moving disc, the moving disc is fixedly installed on the first spring, and the moving disc is slidingly installed in the sliding groove on the fixed cylinder.

[0009] Further, threaded rods are threadedly installed at two ends of the moving disc, the threaded rods are rotationally installed on the base, and the bottoms of the two threaded rods are fixedly installed with rotating gears.

[0010] Further, the rotating adjusting mechanism further comprises gear plates, the gear plates are engaged with the rotating gears, the two gear plates are rotationally installed on the base, and the chain is arranged on the two gear plates.

[0011] Further, the two buffer mechanisms each comprise a rotating rod, and the two rotating rods are rotationally installed at the middle portions of the two support frames.

[0012] Further, connecting blocks are fixedly installed at one end of the two rotating rods, and second springs are fixedly installed at one end of the two connecting blocks.

[0013] Further, rotating blocks are fixedly installed at the other ends of the two second springs, the rotating blocks are rotationally installed on the base, one end of the rotating block is fixedly installed with a sliding rod, the sliding rod is located in the second spring inner cavity, and the sliding rod is slidingly installed with the rotating rod and the connecting block.

[0014] The utility model has the following beneficial effects:

[0015] 1. When the material is placed on the conveying belt, the weight acts on the first supporting roller and the two second supporting rollers, and is transmitted to the first spring through the connecting rod. The traditional supporting roller group has many disadvantages in fixed buffering force when facing material changes. However, the supporting roller group can be adjusted according to the material flow and size. When the spring buffering force needs to be adjusted, the operator rotates the rotating adjusting mechanism by hand. Since the two rotating adjusting mechanisms are connected by the chain, when one of them is rotated, the other one will also rotate synchronously. The rotating adjusting mechanism changes the acting relationship with the bottom of the first spring, thereby adjusting the compression degree of the first spring, changing the elastic potential energy of the spring, and realizing the adjustment of the spring buffering force.

[0016] 2. In the material conveying process, if the material impact is large, the first spring can effectively absorb the impact energy after the spring buffering force is adjusted. At the same time, when the material impact is transmitted to the support frame, the buffer mechanism plays a role, one end of which is rotationally installed in the middle portion of the support frame, and the other end is rotationally installed on the base. Through the buffering effect of itself, the impact on the whole supporting roller group and the conveying belt is further reduced, the conveying belt can run stably and efficiently, and the problem that the traditional supporting roller group cannot adapt to different working conditions is overcome.

[0017] Of course, implementing any product of the utility model does not necessarily need to achieve all the advantages mentioned above at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the utility model embodiments, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings described in the following embodiment only constitute some of the embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0019] Figure 1 It is a three-dimensional structural drawing of the utility model;

[0020] Figure 2 It is a base schematic view of the utility model;

[0021] Figure 3 It is a chain schematic view of the utility model;

[0022] Figure 4 It is a moving disc schematic view of the utility model;

[0023] Figure 5 It is a fixed cylinder sectional view of the utility model;

[0024] Figure 6 It is a rotating rod schematic view of the utility model.

[0025] In the drawings, the component list represented by each number is as follows:

[0026] 1, base; 2, fixed cylinder; 3, first spring; 4, connecting rod; 5, rotating adjusting mechanism; 501, moving disc; 502, threaded rod; 503, rotating gear; 504, gear disc; 6, first idler; 7, second idler; 8, support frame; 9, chain; 10, buffer mechanism; 1001, rotating rod; 1002, connecting block; 1003, second spring; 1004, rotating block; 1005, sliding rod. DETAILED DESCRIPTION

[0027] The technical solutions in the utility model embodiments will be described clearly and completely below in conjunction with the drawings in the utility model embodiments. Obviously, the described embodiments only constitute some of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0028] In the description of the utility model, it is understood that the terms "opening", "upper", "lower", "top", "middle", "inner" and the like indicate the orientation or positional relationship, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the components or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0029] Please refer to Figures 1-6 As shown in the utility model is a kind of adjustable spring buffer carrier roller group, including base 1, the middle part of the base 1 is symmetrically fixedly installed with fixed cylinder 2, the inner cavity of two fixed cylinder 2 is equipped with first spring 3, the top of the first spring 3 is fixedly installed with connecting rod 4, the connecting rod 4 is slidably installed on the fixed cylinder 2, the bottom of two first spring 3 is equipped with rotating adjusting mechanism 5, two rotating adjusting mechanism 5 is connected by chain 9 between, first carrier roller 6 is equipped between two connecting rod 4, two second carrier roller 7 is equipped in the end of two connecting rod 4 away from each other, two second carrier roller 7 is equipped in the end of two away from each other and is equipped with support frame 8, the bottom of two support frame 8 is rotatably installed on the base 1, two support frame 8 is rotatably installed with buffer mechanism 10 in the middle part, the other end of two buffer mechanism 10 is rotatably installed on the base 1.

[0030] When material is placed on the conveying belt, weight acts on first carrier roller 6 and two second carrier rollers 7, is transmitted to first spring 3 by connecting rod 4, and the buffer force of traditional carrier roller group is fixed when facing material change, and there are many disadvantages, and the carrier roller group can be adjusted according to the material flow and size, when the spring buffer force needs to be adjusted, the operator rotates rotating adjusting mechanism 5 with hand, since two rotating adjusting mechanism 5 is connected by chain 9 between, one is rotated, the other is also rotated synchronously, rotating adjusting mechanism 5 changes the action relationship with the bottom of first spring 3, so that the compression degree of first spring 3 is adjusted, the elastic potential energy of spring is changed, and the adjustment of spring buffer force is realized.

[0031] In the material conveying process, if material impact is larger, after adjusting the enhanced spring buffer force, first spring 3 can effectively absorb impact energy, and at the same time, when material impact is transmitted to support frame 8, buffer mechanism 10 plays a role, one end is rotatably installed in the middle part of support frame 8, the other end is rotatably installed on base 1, further reduces the impact on the whole carrier roller group and conveying belt through the buffer effect of itself, guarantees that the conveying belt can run smoothly and efficiently, and overcomes the problem that traditional carrier roller group cannot adapt to different working conditions.

[0032] In one embodiment, for the fixed cylinder 2, the sliding grooves are symmetrically arranged on the fixed cylinder 2, the rotating adjusting mechanism 5 comprises a moving disc 501, the moving disc 501 is fixedly installed on the first spring 3, and the moving disc 501 is slidingly installed in the sliding groove on the fixed cylinder 2.

[0033] The two ends of the moving disc 501 are threadedly connected with threaded rods 502, the threaded rods 502 are rotatably installed on the base 1, and the bottoms of the two threaded rods 502 are fixedly installed with rotating gears 503.

[0034] The rotating adjusting mechanism 5 further comprises gear discs 504, the gear discs 504 are engaged with the two rotating gears 503, the two gear discs 504 are rotatably installed on the base 1, and the chain 9 is arranged on the two gear discs 504.

[0035] When the conveying belt carries the material, the weight of the material is transmitted to the first spring 3 through the first idler 6 and the two second idlers 7 via the two connecting rods 4, and the spring buffering force of the conventional idler group is fixed and difficult to adapt to the change of the material, while the spring buffering force of the present idler group can be adjusted, when it is necessary to adjust the spring buffering force, the operator rotates the gear disc 504 by hand, the moving disc 501 is fixed on the first spring 3 and can slide in the sliding groove of the fixed cylinder 2, which ensures the stability and directivity of the first spring 3 during the extension and contraction process, the two ends of the moving disc 501 are threadedly connected with the threaded rods 502, the threaded rods 502 are rotatably installed on the base 1, and the bottoms of the threaded rods 502 are fixedly installed with the rotating gears 503, when one of the gear discs 504 is rotated, because the gear disc 504 is engaged with the two rotating gears 503, and the two gear discs 504 are connected by the chain 9, the rotation of one gear disc 504 can drive the other gear disc 504 to rotate synchronously, so that the two rotating gears 503 engaged with the two gear discs 504 are simultaneously rotated, the rotation of the rotating gear 503 drives the threaded rod 502 to rotate, because the moving disc 501 is threadedly connected with the threaded rod 502, the rotation of the threaded rod 502 drives the moving disc 501 to move up and down in the sliding groove of the fixed cylinder 2, and the movement of the moving disc 501 directly changes the compression degree of the first spring 3, so as to change the elastic potential energy of the spring, and realize the precise adjustment of the spring buffering force.

[0036] During the material conveying, if a larger material impact is encountered, the first spring 3 can effectively absorb the impact energy after the spring buffer force is enhanced by the above adjustment mode. At the same time, when the material impact is transmitted to the support frame 8, the buffer mechanism 10 starts to work. One end of the buffer mechanism 10 is rotatably installed in the middle of the support frame 8, and the other end is rotatably installed on the base 1. The buffer mechanism 10 further reduces the impact on the entire carrier roller set through its buffer characteristics, ensures that the conveying belt can run smoothly and efficiently, and successfully overcomes the problem that the traditional carrier roller set cannot adapt to different working conditions.

[0037] In one embodiment, for the above-mentioned buffer mechanism 10, both of the buffer mechanisms 10 include a rotating rod 1001, and the two rotating rods 1001 are rotatably installed in the middle of the two support frames 8, respectively.

[0038] One end of each of the two rotating rods 1001 is fixedly installed with a connecting block 1002, and one end of each of the two connecting blocks 1002 is fixedly installed with a second spring 1003.

[0039] The other end of each of the two second springs 1003 is fixedly installed with a rotating block 1004, the rotating block 1004 is rotatably installed on the base 1, one end of the rotating block 1004 is fixedly installed with a sliding rod 1005, the sliding rod 1005 is located in the inner cavity of the second spring 1003, and the sliding rod 1005 is slidably installed with the rotating rod 1001 and the connecting block 1002.

[0040] During the material conveying, if a larger material impact is encountered, the first spring 3 can effectively absorb the impact energy after the spring buffer force is enhanced by the above adjustment mode. At the same time, when the material impact is transmitted to the support frame 8, the rotating rod 1001 is rotatably installed in the middle of the support frame 8. When the support frame 8 shakes due to the material impact, the rotating rod 1001 rotates, and the connecting block 1002 fixedly connected to one end of the rotating rod 1001 drives the second spring 1003 to move. The rotating block 1004 connected to the other end of the second spring 1003 is rotatably installed on the base 1, and plays a role of stable support. The sliding rod 1005 located in the inner cavity of the second spring 1003 has one end fixedly connected to the rotating block 1004, and is slidably connected with the rotating rod 1001 and the connecting block 1002. During the stretching and contraction of the second spring 1003, the sliding rod 1005 limits the radial displacement of the spring on one side, ensures the stable stretching and contraction of the spring, further buffers the influence of the material impact on the support frame 8 through the elastic deformation of the second spring 1003, thereby reducing the impact on the entire carrier roller set and the conveying belt, ensuring that the conveying belt can run smoothly and efficiently, and successfully overcoming the problem that the traditional carrier roller set cannot adapt to different working conditions.

[0041] In the description of the application, references to "one embodiment", "an example", "certain examples" etc. mean that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. The appearances of the phrases "in one embodiment", "an example" or "certain examples" in various places in the specification are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0042] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all of the details of the application, nor limit the application to the specific embodiments described. Obviously, many modifications and variations of the application can be made in light of the teachings above. The embodiments are chosen and described in order to best explain the principles of the application and its practical application, to thereby enable others skilled in the art to best utilize the application. The application is merely limited by the claims and their full scope and equivalents.

Claims

1. An adjustable spring-loaded buffer roller assembly, comprising a base (1), characterized in that: A fixed cylinder (2) is symmetrically fixedly installed in the middle of the base (1). A first spring (3) is provided in the inner cavity of each of the two fixed cylinders (2). A connecting rod (4) is fixedly installed on the top of the first spring (3). The connecting rod (4) is slidably installed on the fixed cylinder (2). A rotation adjustment mechanism (5) is provided at the bottom of each of the two first springs (3). The two rotation adjustment mechanisms (5) are connected by a chain (9). A first roller (6) is provided between the two connecting rods (4). A second roller (7) is provided at the ends of the two connecting rods (4) that are far apart from each other. A support frame (8) is provided at the ends of the two second rollers (7) that are far apart from each other. The bottom of the two support frames (8) is rotatably installed on the base (1). A buffer mechanism (10) is rotatably installed in the middle of each of the two support frames (8). The other end of the two buffer mechanisms (10) is rotatably installed on the base (1).

2. The adjustable spring buffer roller assembly according to claim 1, characterized in that, The fixed cylinder (2) is provided with symmetrical sliding grooves. The rotation adjustment mechanism (5) includes a movable disk (501). The movable disk (501) is fixedly installed on the first spring (3), and the movable disk (501) is slidably installed in the sliding groove on the fixed cylinder (2).

3. An adjustable spring-loaded buffer roller assembly according to claim 2, characterized in that, Both ends of the movable disk (501) are threaded with threaded rods (502), which are rotatably mounted on the base (1). Rotating gears (503) are fixedly mounted on the bottom of both threaded rods (502).

4. An adjustable spring-loaded buffer roller assembly according to claim 3, characterized in that, The rotation adjustment mechanism (5) further includes a gear disk (504), which meshes with two rotating gears (503). Both gear disks (504) are rotatably mounted on the base (1), and the chain (9) is disposed on the two gear disks (504).

5. An adjustable spring-loaded buffer roller assembly according to claim 1, characterized in that, Both of the buffer mechanisms (10) include a rotating rod (1001), and the two rotating rods (1001) are respectively rotatably installed in the middle of the two support frames (8).

6. An adjustable spring-loaded buffer roller assembly according to claim 5, characterized in that, A connecting block (1002) is fixedly installed at one end of each of the two rotating rods (1001), and a second spring (1003) is fixedly installed at one end of each of the two connecting blocks (1002).

7. An adjustable spring-loaded buffer roller assembly according to claim 6, characterized in that, The other ends of the two second springs (1003) are fixedly mounted with rotating blocks (1004). The rotating blocks (1004) are rotatably mounted on the base (1). One end of the rotating blocks (1004) is fixedly mounted with a sliding rod (1005). The sliding rod (1005) is located in the inner cavity of the second spring (1003) and is slidably mounted with the rotating rod (1001) and the connecting block (1002).

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