Self-adaptive tensioning device for three-roller machine

Abstract

The utility model relates to a self-adaptive tensioning device for a three-roller machine. The self-adaptive tensioning device comprises a frame body, the roller mechanism is used for grinding the materials; the driving mechanism comprises a driving part and a transmission assembly, the transmission assembly is used for connecting the driving part and the roller and comprises an output wheel, a connecting wheel and a synchronous belt, and the driving part can drive the output wheel to rotate so as to drive the roller to rotate; the transmission assembly further comprises an adjusting wheel arranged between the output wheel and the connecting wheel, the adjusting wheel is located on one side of a connecting line of the output wheel and the connecting wheel, and the adjusting wheel can move relative to the connecting line under the action of external force, so that the synchronous belt wound on the outer side can move relative to the connecting line according to changes of pressure and friction force between the rollers. The tensioning degree of the synchronous belt is adjusted in a self-adaptive mode, stable rotation of the rollers can be guaranteed, excessive abrasion caused by the fact that the synchronous belt is too tight or too loose can be prevented, meanwhile, damage caused by abnormal stress to the rollers and other components is reduced, and the overall service life of the synchronous belt and the three-roller machine is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to three roll machine grinding technical field, concretely relates to a kind of self-adapting tensioner for three roll machine. BACKGROUND

[0002] The existing three roll machine roller transmission mechanism usually adopts relatively fixed transmission mode, i.e. the driving member drives the roller to rotate through directly connected transmission components. However, in actual production process, due to the nature of materials, the requirements of grinding process and the wear of equipment after long time running, the pressure and friction between rollers will change, which may cause the tensioning degree of synchronous belt difficult to maintain in ideal state. When synchronous belt is too loose, it is easy to appear skidding phenomenon, reduces transmission efficiency, affects the rotational speed stability of roller, and further affects the uniformity and quality of material grinding; while synchronous belt is too tight, it will increase the rotational resistance of roller, accelerate the wear of transmission components, shorten the service life of equipment, and also may cause motor load too large, increase energy consumption and the risk of equipment failure.

[0003] Therefore, it is necessary to improve the prior art to overcome the defects in the prior art. SUMMARY

[0004] Therefore, the present application provides a self-adapting tensioner for three roll machine to solve at least one problem in the background art, which comprises:

[0005] a frame body;

[0006] a roller mechanism installed on the frame body, comprising at least three rollers arranged in close contact, and adjacent two rollers rotate and carry materials to grind the materials;

[0007] a driving mechanism comprising a driving member and a transmission assembly, the transmission assembly is used to connect the driving member and the roller, comprising an output wheel connected with the driving member, a connecting wheel connected with the roller and a synchronous belt connecting the output wheel and the connecting wheel, the driving member can drive the output wheel to rotate to drive the roller to rotate;

[0008] wherein the transmission assembly further comprises an adjusting wheel arranged between the output wheel and the connecting wheel, the adjusting wheel is located on one side of the connecting line of the output wheel and the connecting wheel, and the adjusting wheel can move relative to the connecting line under external force to approach or move away from the connecting line.

[0009] Optionally, the self-adapting tensioner described above further comprises a mounting seat movable in a second direction, and the adjusting wheel is mounted on the mounting seat in a first direction;

[0010] The first direction and the second direction are perpendicular to each other in the horizontal direction.

[0011] Optionally, the adaptive tensioning device, the transmission assembly further comprises an elastic member arranged in the second direction, one end of the elastic member is connected with the mounting seat, and the other end is connected with the frame body.

[0012] Optionally, the adaptive tensioning device, a guide sliding groove is arranged on the mounting seat in the second direction, and the mounting seat can move relative to the frame body along the guide sliding groove.

[0013] Optionally, the adaptive tensioning device, the adaptive tensioning device further comprises a transition wheel arranged on the frame body.

[0014] Compared with the prior art, the present application has the following beneficial effects: by arranging an adjusting wheel between the output wheel and the connecting wheel, and the adjusting wheel is located on one side of the connecting line of the output wheel and the connecting wheel, the adjusting wheel can also move relative to the connecting line under the action of external force, so that the synchronous belt arranged on the outside can adaptively adjust the tensioning degree of the synchronous belt according to the change of the pressure and friction between the rollers, not only ensuring the stable rotation of the rollers, but also preventing the excessive wear of the synchronous belt due to over-tightening or over-loosening, and reducing the damage of the rollers and other components caused by abnormal stress, prolonging the overall service life of the synchronous belt and the three-roller machine. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structure schematic diagram of a three-roller machine shown in the embodiment;

[0016] Figure 2 is a structure schematic diagram of an adaptive tensioning device in a three-roller machine shown in the embodiment.

[0017] REFERENCE NUMERALS:

[0018] 1-frame body;

[0019] 2-roller mechanism, 21-roller;

[0020] 3-driving mechanism, 31-transmission assembly, 311-output wheel, 312-connecting wheel, 313-synchronous belt, 314-adjusting wheel, 315-transition wheel, 316-mounting seat, 3161-guide sliding groove, 317-elastic member. DETAILED DESCRIPTION

[0021] Exemplary embodiments of the present application will be described in greater detail below. In the following description, numerous specific details are given to provide a thorough understanding of the present application. However, it will be apparent that the present application can be practiced without one or more of these specific details. In other instances, well-known structures and techniques have not been described in order to not unnecessarily obscure the present application.

[0022] It should be understood that when an element or layer is referred to as being "on", "adjacent", "connected to" or "coupled to" another element or layer, it can be directly on, adjacent, connected or coupled to the other element or layer, or one or more intervening elements or layers can be present. In contrast, when an element is referred to as being "directly on", "directly adjacent", "directly connected to", or "directly coupled to" another element or layer, then there are no intervening elements or layers present. It will be appreciated that, although terms such as first, second, third, etc. can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the present application and, similarly, a second element, component, region, layer or section discussed below could be termed a first element, component, region, layer or section without departing from the teachings of the present application.

[0023] Spatially relative terms, such as "beneath", "below", "lower", "under", "above", "upper" and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.

[0024] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising", when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. As used herein the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0025] For a thorough understanding of the present application, detailed steps and detailed structures will be presented in the following description in order to illustrate the technical solutions of the present application. The preferred embodiments of the present application are described in detail as follows, however, in addition to these detailed descriptions, the present application can also have other implementation manners.

[0026] Please refer to Figure 1 and Figure 2 A self-adaptive tensioning device for a three-roller machine is shown in a preferred embodiment of the present application, which comprises a frame body 1, a roller 21 mechanism 2 and a driving mechanism 3 mounted on the frame body 1. Among them, the roller 21 mechanism 2 comprises at least three rollers 21 arranged in close contact, and the adjacent two rollers 21 rotate and carry materials to grind the materials; the driving mechanism 3 is used to provide driving force to drive the rollers 21 to rotate.

[0027] Specifically, the driving mechanism 3 comprises a driving member and a transmission assembly 31, the transmission assembly 31 is used to connect the driving member and the roller 21, comprising an output wheel 311 connected with the driving member and a connecting wheel 312 connected with the roller 21, and a synchronous belt 313 connecting the output wheel 311 and the connecting wheel 312, the driving member can drive the output wheel 311 to rotate to drive the roller 21 to rotate.

[0028] It is worth noting that in the present embodiment, the transmission assembly 31 further comprises an adjusting wheel 314 arranged between the output wheel 311 and the connecting wheel 312, the adjusting wheel 314 is located on one side of the connecting line of the output wheel 311 and the connecting wheel 312, and the adjusting wheel 314 can move relative to the connecting line under the action of external force to approach or move away from the connecting line. The advantage of such arrangement is that by arranging the adjusting wheel 314 and enabling it to move relative to the connecting line of the output wheel 311 and the connecting wheel 312, a self-adaptive tensioning basic structure is provided for the entire transmission system. When the working condition between the rollers 21 changes and the tension of the synchronous belt 313 needs to be adjusted, the adjusting wheel 314 can flexibly change its position to ensure that the synchronous belt 313 always maintains a suitable tension, avoiding the problems of slipping or excessive wear caused by improper tension, ensuring the stable progress of material grinding, improving the grinding quality and efficiency, reducing the uneven material processing caused by transmission problems, and at the same time, the service life of the synchronous belt 313 can also be improved.

[0029] Further, in the horizontal direction, the first direction and the second direction are perpendicular to each other. The transmission assembly 31 further comprises a mounting seat 316 movable in the second direction, and the adjusting wheel 314 is mounted on the mounting seat 316 in the first direction. That is, when the adjusting wheel 314 is subjected to the force of the synchronous belt 313, the adjusting wheel 314 can drive the mounting seat 316 to move in the second direction, so that the synchronous belt 313 is adjusted to a suitable tension.

[0030] Further, the transmission assembly 31 further comprises an elastic member 317 arranged along the second direction, one end of the elastic member 317 being connected with the mounting seat 316, and the other end being connected with the frame body 1. In the embodiment, the elastic member 317 provides the ability of automatic compensation. When the tension of the synchronous belt 313 changes due to various factors (such as changes in material properties, wear of the roller 21, etc.), the elastic member 317 can automatically expand or contract according to the force condition, drive the mounting seat 316 and the adjusting wheel 314 to move, thereby automatically compensating for the change of the tension, and maintaining the stable tension state of the synchronous belt 313. This not only reduces the need for manual intervention and improves the continuity of production, but also to a certain extent, buffers the impact of external force on the transmission system, protects the synchronous belt 313, the roller 21 and other transmission components from sudden overload or impact damage, and improves the reliability and stability of the equipment operation.

[0031] As described above, the mounting seat 316 is provided with a guide sliding groove 3161 along the second direction, and the mounting seat 316 can move relative to the frame body 1 along the guide sliding groove 3161 to increase the movable range of the adjusting wheel 314 in the second direction.

[0032] The adaptive tensioning device further comprises a transition wheel 315 arranged on the frame body 1 to optimize the running direction of the synchronous belt 313 during transmission, so that it can more smoothly pass through each component, reduce the problems of twisting and bending of the synchronous belt 313 caused by unreasonable layout of the belt wheel, reduce the wear risk of the synchronous belt 313, and prolong its service life.

[0033] The above is only one specific embodiment of the present application, and any improvement made on the basis of the concept of the present application is considered to be within the protection scope of the present application.

Claims

1. An adaptive tensioning device for a three-roll machine, characterized in that, The application relates to a self-adaptive tensioning device for a roller mechanism, which comprises a frame body, a roller mechanism mounted on the frame body and comprising at least three rollers arranged in close contact, two adjacent rollers rotating and carrying materials to grind the materials, a driving mechanism comprising a driving member and a transmission assembly, the transmission assembly being used for connecting the driving member and the rollers, the transmission assembly comprising an output wheel connected with the driving member, a connecting wheel connected with the rollers and a synchronous belt connecting the output wheel and the connecting wheel, the driving member being capable of driving the output wheel to rotate to drive the rollers to rotate, wherein the transmission assembly further comprises an adjusting wheel arranged between the output wheel and the connecting wheel, the adjusting wheel being located on one side of a connecting line of the output wheel and the connecting wheel, and the adjusting wheel being capable of moving relative to the connecting line under the action of external force to approach or move away from the connecting line. The transmission assembly further comprises a mounting seat capable of moving in a second direction, and the adjusting wheel is mounted on the mounting seat in a first direction. In a horizontal direction, the first direction and the second direction are perpendicular to each other. The transmission assembly further comprises an elastic member arranged in the second direction, one end of the elastic member being connected with the mounting seat, and the other end being connected with the frame body. A guide sliding groove is arranged on the mounting seat in the second direction, and the mounting seat can move relative to the frame body along the guide sliding groove.

2. The self-adapting tightening device according to claim 1, characterized in that The self-adaptive tensioning device further comprises a transition wheel arranged on the frame body. ​ 3. The self-adapting tightening device according to claim 2, characterized in that ​ 4. The self-adapting tightening device according to claim 3, characterized in that ​ 5. The self-adapting tightening device according to claim 4, characterized in that ​

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