1、1Design and Analysis of Transmission small hammer meat machineAbstract： In order to improve the taste of grilled food ， while reducing human labor ， this paper designed a belt drive and explained design ideas .It uses the gear drive， belt drive in the analysis and designof the system. Finally， it in
2、troduced the working principle and performance of the system detaiedlyl. Keywords： gear drive ； belt drive ； working principle 1.A research background and significance With the rapid development of economic level ， peoples living standards is improving， barbecue is becoming more and more popular for
3、 most people . However， the current meat ingredients becomes looseafter the mans hammering ， so that the spices can go through to improve the taste of the meat. To reduce labor ， to substitute the people of the machine ， so the design of a small hammer meat machine is greatly needed . And its drive
4、system design and analysis ， then has a significant impact on the system s efficiency， power and other factors. 22.Designs The overall structure of small meat hammer are the rack ， transmission， hitting system and its subsidiary structure . The overall structure is interrelated and interdependent .
5、Detailed model scheme shown below： Rack section contains aluminum angle brackets and rectangular iron structures . Transmission of consolidation in the rectangular bosses . Among them， there are security rectangular switches， circuit boards and other necessary components. Transmission is mainly comp
6、osed of gears and levers drive . To get the size of the meat （10mm 16mm） determines the operating frequency of the hammer shaft and the hammer contact portion 3 is symmetrical ， the reliability of the contact is considered ， taking the effective hitting coefficient to be 0.8 ； shaft and the driven g
7、ear for the interference fit ， you can approximately think that both of them have the equal speed； in order to improve the stability of the transmission systemand increase the carrying capacity ， it should be negative transmission 1 ， but the round flat gear transmission mechanism dont also have a h
8、igher transmission ratio，but high mechanical efficiency 2 for the puposes of 3impoving the transmission reliability and the transmission efficiency ， the motor and the gear are fixed with a flat key consolidation . System by striking the projecting portion of the shaft of the force transmitted to th
9、e rear of the hammer ， the borrow output power zoom lever principle ， when the projecting portion of the rod from sliding ， with the action of gravity hammer drooping naturally， to achieve hitting purposes. For the purpose of increasing meat striking ， hammer can be used for the casting process ， jo
10、ined at the center of a large heavy metals. Also， due to the different meats will have different lines， so the design of specific hammerhead for beef， chicken， pork ， according to the needed. Further， in order to increase the strength of the striking hammer ， the hammer is designed quadrangular pyra
11、midal .In addition， the system will work after a previous cut of meat ， the use of a conveyor belt to the bottom of the hammer . As the conveyor belt using the sliding gear transmission ， the system can speed regulation ， can be artificially regulated according to the degree of loose flesh . Since u
12、nder the same conditions ， V belt drive with a capacity of three times the level in the general machinery ， the use of V-belt drive 3.Due to the 4mechanism of the belt is intermittent work ， it should be used to ensure the transmission capability of the first ， reduce life to determine the criteria
13、for V-belts with a rated power of V 4 . Sub -chip structure of the belt on the shank guides the portion of the slide hammer . Guide plates are intended to prevent the meat from getting away from the conveyor belt ； slide shaft and the hammer is to increase the friction ， improving the reliability of
14、 striking . Considering this is a food processing machine ， so institutions should be madeof iron ， steel. 3.Working principles and performance analysis Turn on the power t ， then choosethe hitting intensity level ， it is driven by the motor to achieve the use of power transmission gear and gear sha
15、ft ； due to the use of the hammer and the frame is hinged connection ， so you can use the length of the different arm to achieve similar power amplification and increase the striking intensity on meat. Meanwhile， considering the hammer after each hit，if there be the absence of other mechanical mecha
16、nism ，the meat will stay on a conveyor belt to hinder the movement of the others.Thus there should be the design of a spring means connected with the hammer arm .The choice of a certain stiffness coefficient of 5the spring when the hammer is to achieve the lowest possible distance of 10mm to 16mm be
17、tween the spring hammer and belt theand.At the same time， the hammer is in the highest point of the spring tension ， it will largely increase the striking intensity of meat . This design uses conveniently and easily to operate. Users just needto open a switch to complete the hammer meat function . I
18、t has the following advantages ： （ 1 ） simple structure ， good processability and low cost. （ 2 ） cost-effective ， broad market prospects. （ 3 ） for the home entertainment ， with good usability .（ 4 ） easy to use . （ 5 ） no longer relying on the human meat hammer ， free the manfrom manual labor . Th
19、is design has broad market prospects， and can greatly improve the taste of food ， while reducing the human labor. The design process to fully consider the manufacturing cost.The whole meat machine structure is simple and easily processed. It is able to provide better food for a family barbecue， picn
20、ic and is highly attractive. The designetakes full account of the cost and feasibility of processing.The use of standard parts as much as possible can reduce costs， so that the whole design have both practicality and simplicity. 6References 1 Xie Jin， WAN Chao Yan， Du Lijie “ mechanical principles “
21、 142 Beijing ： Higher Educatio 2 Zhang Chunlin ， Wing Fai ， Huang Zude ， “round flat gear transmission mechanism of action research “， “ Beijing University of Technology“ ， Vol 16， No. 3 ： June 1996 ； 3 Min Li ， Huang Ping ， “ analyzes several problems with transmission design “ and “Machinery and electronics “ ， Volume XI： 2010 ； 4 Zhang Siwan ， Ning Xiaohui ， “ Methods of V belt drive design “ and “Silicon Valley“ ， the twelfth period ： 2010.
