阅读说明：本技术 一种磨粉机喂料辊摩擦式离合器 (Friction type clutch for feeding roller of flour mill ) 是由 段博峰 张东生 孙伟 李志安 于 2019-10-12 设计创作，主要内容包括：本发明公开了一种磨粉机喂料辊摩擦式离合器,包括主动轮和主动轴,两者联接达到传递转矩作用,从动部分为从动轴,可通过轴端的楔形接口与喂料辊轴联接,离合器体为偏心轴、离合套、摩擦片回位弹簧等,偏心轴转动时控制离合套轴向移动推动摩擦片结合或分离,达到合或离状态。该离合器是由磨粉机控制系统的气动回路作用控制气缸,带动偏心轴转动,实现离合控制,该离合器采用全封闭式结构,将运动部件包裹于离合器壳体内,结构紧凑,不受外界粉尘污染,离合动作灵活迅速,可靠性高,能保证喂料辊转停平稳工作。(The invention discloses a friction clutch of a feeding roller of a flour mill, which comprises a driving wheel and a driving shaft, wherein the driving wheel and the driving shaft are connected to achieve the effect of transmitting torque, the driven part is a driven shaft and can be connected with a feeding roller shaft through a wedge-shaped interface at the shaft end, a clutch body comprises an eccentric shaft, a clutch sleeve, a friction plate return spring and the like, and the clutch sleeve is controlled to axially move to push the friction plates to be combined or separated when the eccentric shaft rotates, so that the on-off state is achieved. The clutch is a fully-closed structure, moving parts are wrapped in a clutch shell, the clutch is compact in structure and free from external dust pollution, the clutch is flexible and rapid in clutch action and high in reliability, and the feeding roller can be guaranteed to rotate and stop stably.)

1. The utility model provides a rubbing clutch of milling machine feed roller, includes casing (2), its characterized in that: a driven shaft (1), a return spring (3) and a clutch sleeve (4) are arranged in the shell (2), the tail end of the driven shaft (1) is connected with the front end of a driving shaft (9), the clutch sleeve (4) can axially slide on the driven shaft (1), an eccentric shaft (6), a shifting shaft rod (5) and a static friction plate (7) adhered to the side surface of the clutch sleeve (4) are arranged on the clutch sleeve (4), one end of the shifting shaft rod (5) is pushed by a cylinder of a control loop, the eccentric shaft (6) is rotated by the other end of the shifting shaft rod (5) to shift the clutch sleeve (4) to be far away from a dynamic friction plate (8), the static friction plate (7) and the dynamic friction plate (8) are arranged in the shell (2) side by side, the friction plate (8) is adhered to the driving shaft (9), and the driving shaft (9) is connected with a driving wheel (10) through a flat key (, the flat key (11) is arranged between the driving shaft (9) and the driving wheel (10).

2. A mill feed roll friction clutch as claimed in claim 1, wherein: the driving wheel (10) moves circularly through belt transmission, and the driving wheel (10) and the driving shaft (9) rotate synchronously.

3. A mill feed roll friction clutch as claimed in claim 1, wherein: the shaft end of the driven shaft (1) is provided with a wedge-shaped interface which can be connected with the corresponding wedge-shaped interface of the feeding roller shaft, and the driven shaft (1) and the clutch sleeve (4) can axially slide and circumferentially synchronously rotate.

4. A mill feed roll friction clutch as claimed in claim 1, wherein: when the static friction plate (7) on the clutch sleeve (4) is contacted with the dynamic friction plate (8) on the driving shaft (9), the static friction plate (7) makes circular motion along with the dynamic friction plate (8) under the pressure action of the return spring (3) and achieves synchronous motion.

5. A mill feed roll friction clutch as claimed in claim 1, wherein: when the clutch sleeve (4) is pulled away from the dynamic friction plate (8) by the eccentric shaft (6), the static friction plate (7) is separated from the dynamic friction plate (8), so that the clutch sleeve (4) is separated from the rotation of the driving shaft (9), and the driven shaft (1) is separated from the driving shaft (9).

Technical Field

The invention relates to a clutch, in particular to a friction clutch of a feeding roller of a flour mill, belonging to the technical field of grain processing equipment.

Background

The feed roller clutch of the flour mill is an indispensable device of the flour mill, and controls the important action of whether the feed roller feeds materials in the process of milling. After the grinding rollers are rolled together, the feeding rollers rotate to realize the feeding function, and before the grinding rollers are separated from the rolling, the feeding rollers stop rotating to close the feeding, so that the rotation and the stop of the feeding rollers directly influence the working performance of the flour mill.

The existing flour mill feeding roller clutch has more types and different performances. Dog clutches are associated with significant impact loads during engagement and disengagement, causing wear and failure of parts. The traditional pneumatic clutch has the defects of high part number and complex structure, and air leakage can occur after parts are worn, so that frequent maintenance is caused. Early mechanical clutches suffered from lubrication limitations and dust contamination problems, leading to premature wear failure of parts.

Disclosure of Invention

The invention aims to solve the problems and provide a friction clutch of a feeding roller of a flour mill.

The invention realizes the purpose through the following technical scheme: the utility model provides a rubbing clutch of feeding roller of flour mill, includes the casing, be equipped with driven shaft, return spring, separation and reunion cover in the casing, the tail end of driven shaft links together with the front end of driving shaft, the separation and reunion cover can be made the axial slip on the driven shaft, be equipped with eccentric shaft, group axostylus axostyle, the static friction disc of adhesion in separation and reunion cover side on the separation and reunion cover, the cylinder that the one end of dialling the axostylus axostyle passes through control circuit promotes, the other end of dialling the axostylus axostyle rotates the eccentric shaft and dials the separation and reunion cover and keeps away from the dynamic friction disc, the static friction disc is the setting side by.

As a still further scheme of the invention: the driving wheel moves circularly through belt transmission, and the driving wheel and the driving shaft rotate synchronously.

As a still further scheme of the invention: the shaft end of the driven shaft is provided with a wedge-shaped interface which can be connected with the corresponding wedge-shaped interface of the feeding roller shaft, and the driven shaft and the clutch sleeve can axially slide and circumferentially synchronously rotate.

As a still further scheme of the invention: when the static friction plate on the clutch sleeve is contacted with the dynamic friction plate on the driving shaft, the static friction plate generates friction force under the pressure action of the return spring to make the static friction plate move circularly along with the dynamic friction plate and achieve synchronous movement.

As a still further scheme of the invention: when the clutch sleeve is pulled away from the dynamic friction plate by the eccentric shaft, the static friction plate and the dynamic friction plate are separated, so that the clutch sleeve is separated from the rotation of the driving shaft, and the driven shaft is separated from the driving shaft.

The invention has the beneficial effects that: the friction clutch of the feeding roller of the flour mill has reasonable design, and the clutch controls the cylinder under the action of a pneumatic loop of a flour mill control system to drive the eccentric shaft to rotate so as to realize clutch control; the clutch adopts a totally enclosed structure, the moving parts are wrapped in the clutch shell, the structure is compact, the clutch is free from external dust pollution, the clutch action is flexible and rapid, the reliability is high, and the stable work of the feeding roller during rotation and stop can be ensured.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

In the figure: 1. the device comprises a driven shaft, 2, a shell, 3, a return spring, 4, a clutch sleeve, 5, a shaft shifting rod, 6, an eccentric shaft, 7, a static friction plate, 8, a dynamic friction plate, 9, a driving shaft, 10, a driving wheel, 11 and a flat key.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a friction clutch for a feeding roller of a flour mill comprises a housing 2, a driven shaft 1, a return spring 3 and a clutch sleeve 4 are arranged in the housing 2, the tail end of the driven shaft 1 is connected with the front end of the driving shaft 9, the clutch sleeve 4 can axially slide on the driven shaft 1, the clutch sleeve 4 is provided with an eccentric shaft 6, a poking shaft rod 5 and a static friction plate 7 adhered to the side surface of the clutch sleeve 4, one end of the poking shaft rod 5 is pushed by a cylinder of the control loop, the other end of the poking shaft rod 5 rotates the eccentric shaft 6 to poke the clutch sleeve 4 to be far away from the dynamic friction plate 8, the static friction plate 7 and the dynamic friction plate 8 are arranged in the shell 2 side by side, the friction plate 8 is adhered on the driving shaft 9, the driving shaft 9 is connected with the driving wheel 10 through a flat key 11, and the flat key 11 is arranged between the driving shaft 9 and the driving wheel 10.

Further, in the embodiment of the present invention, the driving wheel 10 moves circularly by the belt transmission, and the driving wheel 10 rotates synchronously with the driving shaft 9.

Furthermore, in the embodiment of the invention, the shaft end of the driven shaft 1 is provided with a wedge-shaped interface which can be connected with a corresponding wedge-shaped interface of the feeding roller shaft, and the driven shaft 1 and the clutch sleeve 4 can slide axially and rotate circumferentially synchronously.

Further, in the embodiment of the invention, when the static friction plate 7 on the clutch sleeve 4 is contacted with the dynamic friction plate 8 on the driving shaft 9, the static friction plate 7 follows the dynamic friction plate 8 to make circular motion by the friction force generated by the pressure action of the return spring 3, and the synchronous motion is achieved.

Further, in the embodiment of the invention, when the clutch sleeve 4 is pulled away from the dynamic friction plate 8 by the eccentric shaft 6, the static friction plate 7 is separated from the dynamic friction plate 8, so that the clutch sleeve 4 is separated from the rotation of the driving shaft 9, and the driven shaft 1 is separated from the driving shaft 9.

The working principle is as follows: when the friction clutch of the feeding roller of the flour mill is used, a cylinder in a pneumatic loop is controlled to push a shifting shaft rod 5 to drive an eccentric shaft 6 to rotate, and then a clutch sleeve 4 is pushed to axially slide on a driven shaft 1, so that a static friction plate 7 is separated from a dynamic friction plate 8, and a return spring is compressed to contract, and the driven shaft 1 is rotationally separated from a driving shaft 9; when the shifting shaft lever 5 is reversely acted by the air cylinder, namely, when the shifting shaft lever reversely rotates, the eccentric shaft 6 also reversely rotates to push the clutch sleeve 4 to axially and reversely slide, the static friction plate 7 is close to the dynamic friction plate 8 to reach a joint state, and the static friction plate 7 and the dynamic friction plate are tightly jointed under the action of pressure generated by the extension of the return spring to enable the driving shaft 9 and the driven shaft 1 to be integrated into a whole to realize synchronous rotation, and at the moment, the rotation of the driving wheel 10 can be transmitted to the feeding roller through the driving shaft 9, the dynamic friction plate 8, the static friction plate 7, the clutch sleeve.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.