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J_1—400型鼓筒形混凝土搅拌机原振动装置(见图1)是铰接在鼓筒下面机架的水平杠杆上。其原理是:垂直压杆5与水平杠杆4用销轴7铰接,触头3是一圆头可调螺栓,静止时由于辊轮1的重量和触头下面弹簧张力使其处于最高位置。当料斗到达上止点翻转卸料时,斗口边缘压下触头,通过杠杆作用,使装在鼓筒底部的振动辊轮抬起,迫使鼓轮外壁的三角楔铁冲击鼓轮使其振动。与辊轮连接着的杠杆系统反过来又用触头将振幅传给料斗,使料斗内存料落下。每次搅拌时间是1.5～2分钟,上料振动次数约15～20次。这种装置振动力大,噪声高,且振动力传递影响其他部位正常工作,振动装置磨损快,易出故障,需经常更换零件,现场维修不便。现将原振动装置拆除,在料斗底部装一台
The J_1-400 drum-concrete mixer’s original vibration device (see Figure 1) is hinged on the horizontal lever of the rack below the drum. The principle is that the vertical pressure rod 5 and the horizontal lever 4 are hingedly connected with the pin 7, and the contact 3 is an adjustable bolt with a round head, which is at the highest position due to the weight of the roller 1 and the spring tension under the contact at rest. When the hopper reaches the top dead center and reverses the discharge, the contact edge is pressed down by the bucket mouth, and the vibrating roller mounted on the bottom of the drum is lifted by the lever action to force the triangular wedge iron on the outer wall of the drum to impact the drum to make it vibrate. . The lever system connected to the roller, in turn, transmits the amplitude to the hopper with the contact, causing the hopper memory material to fall. Each stirring time is 1.5 to 2 minutes, and the feeding frequency is about 15 to 20 times. This kind of device has large vibration force and high noise, and the transmission of vibration force affects the normal operation of other parts. The vibration device wears quickly and is prone to failure. Parts need to be replaced frequently, and on-site maintenance is inconvenient. The original vibration device is now dismantled and installed at the bottom of the hopper