资源目录
压缩包内文档预览：
编号：90960846
类型：共享资源
大小：1.53MB
格式：RAR
上传时间：2020-08-01
上传人：QQ24****1780
认证信息
个人认证
王**（实名认证）
浙江
IP属地：浙江
40
积分
- 关 键 词：
-
圆盘
设计
毕业设计
- 资源描述：
-
圆盘给料机设计毕业设计,圆盘,设计,毕业设计
- 内容简介：
-
辽宁科技大学本科生毕业设计 - 5 -Chip screw conveyor with feed assistAbstractA screw conveyer for conveying metal turnings from a machining operation. The chip screw conveyor includes an auger-like screw configured to move metal turnings in a given direction. The conveyor includes a tubular housing and an input chute defining an input opening. A secondary feeder arm is pivoted to the conveyor housing. The arm is pivoted out of the way in direction when agglomerated scraps/chips are dumped threw input opening into the input chute. Once the chips are dumped in place, the arm is allowed to rotate downwardly to press on the top of the agglomerated scraps/chips. This prevents the chips from bridging between the sides of the input chute and prevents the scraps from balling or rolling on top of the screw in a manner that makes the screw ineffective. The arm creates sufficient force to press the scrap into engagement with the flutes of the screw. In an alternative embodiment, an arm includes a small secondary screw mounted to the arm for moving agglomerated scraps/chips along the arm and into engagement with the underlying screw. In yet another embodiment, an arm includes a vibrator for vibrating the arm to make it more effective. Claims The invention claimed is: 1. A screw conveyor apparatus for conveying agglomerated metal scrap that has a tendency to bridge and ball up in a manner reducing effectiveness of the screw conveyor apparatus, comprising:a screw conveyor including a housing defining an inlet chute with angled sides and a screw rotatable in the housing, the screw including an inlet end proximate the inlet chute, the housing and the screw being constructed from heavy-duty materials and designed to engage and convey highly-abrasive agglomerated metal scrap; and a feed assist operably mounted to the housing at the inlet chute, the feed assist being movable between a first position allowing addition of agglomerated metal scrap into the inlet end and movable to a second position for pressing the agglomerated metal scrap in the inlet end against an outer surface of the screw. 2. The apparatus defined in claim 1 wherein the feed assist includes an arm pivoted to the housing. 3. The apparatus defined in claim 2 wherein the arm is gravity actuated. 4. The apparatus defined in claim 3 wherein the arm is weighted. 5. The apparatus defined in claim 2 wherein the arm includes a first end hinged to the housing and an opposite end that is free to move up and down, with the opposite end being located closer to the inlet end than the first end. 6. The apparatus defined in claim 5 wherein the screw conveyor is configured to operate at an upwardly extending angle from the inlet chute. 7. The apparatus defined in claim 2 wherein the arm includes a vibrator. 8. A screw conveyor apparatus comprising: a screw conveyor including a housing defining an inlet chute with angled sides and a screw rotatable in the housing, the screw including an inlet end proximate the inlet chute; and a feed assist operably mounted to the housing at the inlet chute, the feed assist being movable between a first position allowing addition of agglomerated metal scrap onto the inlet end and movable to a second position for pressing the agglomerated metal scrap material in the inlet end against an outer surface of the screw, the feed assist including an arm pivoted to the housing, the arm including a secondary screw positioned adjacent the conveyor screw when the arm is in a downward/operating position. 9. The apparatus defined in claim 8 wherein the secondary screw includes a drive for rotating the secondary screw in a direction the same as the conveyor screw. 10. A method comprising steps of: providing a screw conveyor having a primary screw with a feed assist positioned at an inlet end of the screw conveyor, the screw conveyor being constructed from heavy-duty materials adapted to engage and convey highly abrasive agglomerated metal scrap; moving the feed assist to a first position permitting agglomerated metal scrap to be added to the inlet end; adding agglomerated metal scrap to the inlet end; moving the feed assist to a second position for pressing the agglomerated metal scrap onto the primary screw in the screw conveyor; and pressing the agglomerated metal scrap into engagement with the screw of the screw conveyor to assist in moving the agglomerated metal scrap while rotating the primary screw. 11. The method defined in claim 10 wherein the feed assist includes an arm pivoted to the screw conveyor, and wherein the step of moving includes pivoting the arm. 12. The method defined in claim 11 including vibrating the arm to improve effectiveness of the feed assist.13. The method defined in claim 11 wherein the arm is weighted and wherein the step of moving includes utilizing gravity to cause the arm to move. Description BACKGROUND OF THE INVENTION The present invention concerns screw conveyors particularly adapted for handling agglomerated metal turnings and scrap from machining operations, and more particularly concerns a feed assist for use with a chip screw conveyor. Agglomerated metal scrap from machining and lathe operations is difficult to handle since the metal scrap material is intertwined and twisted, and is very abrasive. Problems arise when trying to convey this agglomerated metal scrap since it bunches up and bridges across side portions of a conveyor chute, preventing the conveyor screw from engaging the scrap material and thus making the screw ineffective. The metal scrap material will also form tumbleweed like masses that roll along a top of the conveyor screw against the operating direction of the conveyor screw. Accordingly, a feed assist is required that is relatively simple, and that will function in the environment of agglomerated metal scrap without itself causing a conveyor plugging problem. Further, it is preferable that any feed assist be compatible with existing equipment so that it is retrofitable. Accordingly, an improved apparatus and method solving the aforementioned problems is desired. SUMMARY OF THE INVENTION In one aspect, the present invention includes a screw conveyor apparatus including a screw conveyor. The screw conveyor includes a housing that defines an inlet chute and a screw rotatable in the housing with an end proximate the inlet chute. Further, the screw conveyor includes a feed assist operably mounted to the housing at the inlet. The feed assist is movable between a first position allowing addition of agglomerated metal scrap into the inlet chute and movable to a second position for pressing the agglomerated metal scrap material in the inlet against the outer surface of the screw. In another aspect, the present invention includes a method including steps of providing a screw conveyor with a feed assist positioned at an inlet end of the screw conveyor. The method also includes moving the feed assist to a first position permitting agglomerated scrap to be added to the inlet, adding agglomerated metal scrap to the inlet, moving the feed assist to a second position for pressing the agglomerated metal scrap onto the screw in the screw conveyor, and pressing the agglomerated metal scrap into engagement with the screw of the screw conveyor to assist in moving the agglomerated metal scrap while rotating the screw. These and other features, advantages and objects of the present invention will be further understood and appreciated by those skilled in the art by reference to the following specification, claims and appended drawings. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view, partially broken away, of an apparatus embodying the present invention; FIG. 2 is an enlarged fragmentary view of a longitudinal cross section of the chute area of the screw conveyer shown in FIG. 1; FIG. 3 is a side view of a modified feed assist similar to FIG. 2 but including an arm with a secondary feeder screw thereon; and FIG. 4 is another modified feed assist similar to FIG. 2 but including an arm with a vibrator thereon. Notably, conveyor screw bearing arrangements and also vibrators are known in the metalworking and conveying industry, and accordingly it is not necessary that these components be described in detail herein for a skilled artisan to understand the present invention. It is contemplated that a variety of means can be provided on the feed assist arm to make the arm more effective, such as plungers, belts, and the like, and the present invention is contemplated to cover such arrangements. Further, different motions of arm movement can be provided to increase the effectiveness of the arm. 辽宁科技大学本科生毕业设计 第3页带有给料装置的碎屑螺旋输送机摘要一种螺旋输送机用于输送加工作业的金属削。该碎屑螺旋输送机包括一个螺旋式螺杆配置移动金属镟在一个特定的方向。传送带包括管状外壳和输入槽和输入口。一个备用馈路机械臂是转动输送外壳。机械臂的旋转方向正对着团聚的碎屑从输入口输入到输入槽。一旦碎屑倾倒在地，机械臂可以旋转向下按顶部的团聚碎屑。这样就避免了碎屑“连接”之间的输入槽，防止碎屑以一个使螺旋杆无效的方式在螺旋杆的顶部滚动。机械臂创造足够的力，去约束螺旋杆。在另一种体现，安装有一个二级的螺旋杆的机械臂，用于移动机械臂和螺旋杆周围的碎屑团。另外，机械臂安装有振动器，使其更加有效。要求这个发明的要求是：1 输送烧结金属废料的螺旋输送机有一种以桥连和滚动的方式减少螺旋输送机的影响的趋势，包括：螺旋输送机包括直角进槽两侧的外壳和螺杆旋转的外壳，螺杆包括进口和近似的入口槽，外壳和用于输送高度磨料烧结金属的废料并用重型材料制造的螺杆；和安装在输入槽外壳处的给料装置，可动的给料装置安装在允许增加烧结金属废料的进口底的第一个位置，和可转动的推动烧结金属废料离开螺杆外表面的第二的位置之间。2 要求1的条件下，给料装置外壳上有一个可转动的机械臂。3 要求3中提到的机械臂是重力驱动的。4 要求3中提到的机械臂是加重的。5 要求2中提到的机械臂，包括一个外壳上的铰链和可自由上下移动的另一端，是另一端更靠近入口底部。6 要求5中提到的螺旋输送机被配置为运行在从进槽向上延伸的角度上。7 要求2中提到的机械臂带有一个振动器。8 螺旋输送机包括：螺旋输送机,包括含有直角边入口槽的外壳,和在外壳内的螺杆,螺杆包括一个入口端接近输入槽。和一个给料装置安装在进槽外壳处，可动的给料装置安装在允许增加烧结金属废料的进口底的第一个位置，和可转动的推动烧结金属废料离开螺杆外表面的第二的位置之间。带有机械臂的给料装置安装在外壳的枢轴上，带有二次螺杆的机械臂被安置在输送螺杆附近，当机械臂在向下操作位置时。9 要求8中提到的二次螺杆的驱动旋转方向与输送机的螺杆旋转方向相同。10 包含全部方法的步骤：提供螺旋输送机具有带有给料装置的初级螺杆，放置在螺旋输送机的入口处，螺旋输送机用重型材料制造，以适应参与并输送高度磨料烧结金属废料；移动给料装置到第一位置，允许烧结金属废料添加到入口；填
- 温馨提示:
1: 本站所有资源如无特殊说明，都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
2: 本站的文档不包含任何第三方提供的附件图纸等，如果需要附件，请联系上传者。文件的所有权益归上传用户所有。
3.本站RAR压缩包中若带图纸，网页内容里面会有图纸预览，若没有图纸预览就没有图纸。
4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
5. 人人文库网仅提供信息存储空间，仅对用户上传内容的表现方式做保护处理，对用户上传分享的文档内容本身不做任何修改或编辑，并不能对任何下载内容负责。
6. 下载文件中如有侵权或不适当内容，请与我们联系，我们立即纠正。
7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
人人文库网所有资源均是用户自行上传分享，仅供网友学习交流，未经上传用户书面授权，请勿作他用。
川公网安备: 51019002004831号