Mechanical rocker arm-type vertical feeding cushioning device

• US 9,938,083 B2
• Filed: 04/21/2015
• Issued: 04/10/2018
• Est. Priority Date: 04/21/2014
• Status: Active Grant

• Current Assignee: Science Academy Of China University Of Mining And Technology
• Original Assignee: China University of Mining and Technology
• Inventors: Zhang, Jixiong, Zhang, Qiang, Gao, Rui, Yan, Hao, Li, Meng
• Primary Examiner(s): Nicholson, III, Leslie A
• Assistant Examiner(s): CAMPBELL, KEITH
• Application Number:
  US14/917,817
• Publication Number:
  US 20170283174A1
• Time in Patent Office: 1,085 Days
• Field of Search: 193 27, 193 32, 198534
• CPC Class Codes: B65G 11/088 for bulk
• CPC Class Codes: B65G 11/206 for bulk
• CPC Class Codes: B65G 2201/045 Sand, soil and mineral ore
• CPC Class Codes: B65G 2207/28 Impact protection
• CPC Class Codes: B65G 2814/0211 using moving braking means to slow down the speed during free fall
• CPC Class Codes: B65G 65/32 Filling devices
• CPC Class Codes: B65G 69/00 Auxiliary measures taken, or devices used, in connection with loading or unloading by means incorporated in, or operatively associated with, conveyors B65G47/00; preventing fire A62C3/00; in vehicles, see the relevant subclasses, e.g., B60P1/58, B61D7/32, B62D33/00, B63B25/00, B64D9/00
• CPC Class Codes: B65G 69/16 Preventing pulverisation, deformation, breakage, or other mechanical damage to the goods or materials

Abstract

A mechanical rocker-arm type vertical feeding cushioning device, consisting of two identical cushioning units and a box body (7). The two cushioning units are respectively arranged with a certain height difference on the inner side of the box body (7). Each cushioning unit consists of a cushioning mechanism and a fixing hinge mechanism. The cushioning mechanism is composed of a cushioning plate (1), a spring (5) and a balance weight (6). The fixing hinge mechanism is composed of a hinge plate (2), a right angle circular rod (3) and an elastic limiting device (4). The cushioning plate (1) is fixed to the hinge plate (2) via connection holes and using bolts. The hinge plate (2) is welded to the right angle circular rod (3). The elastic limiting device (4) consists of two elastic limiting plates and a hollow iron ring in a welded manner. The right angle circular rod (3) is connected to the elastic limiting device (4) in a sleeved manner via the hollow iron ring of the elastic limiting device (4). An upper end of the spring (5) is connected to the right angle circular rod (3), and the balance weight (6) is suspended at a lower end of the spring (5). Material is fed to the cushioning plates via a feeding pipe, and falls down after being cushioned twice by the cushioning plates (1). The cushioning device repeatedly cushions and recovers under the joint effect of the cushioning plates (1) and the cushioning balances (6).

Claims

1. A mechanical rocker arm-type vertical feeding cushioning device, comprising a box body (7), and two cushioning units disposed in an upper layer and a lower layer in a staggered manner on the box body (7), each cushioning units consists a cushioning mechanism and a fixing hinge mechanism respectively, the cushioning mechanism comprises a cushioning plate (1), a spring (5), and a balance weight (6), the fixing hinge mechanism comprises a right-angle round rod (3) and a hinge plate (2) welded to the right-angle round rod (3), and an elastic limiting device (4) is disposed on the two sides of the hinge plate (2), wherein, the elastic limiting device (4) comprises two elastic limiting plates and a hollow iron hoop, the elastic limiting plates are fixed to the upper surface and lower surface of the hollow iron hoop, the right-angle round rod (3) is plug-in mounted in the hollow iron hoop of the elastic limiting devices (4), the cushioning plate (1) is fixed to the hinge plate (2) and swings up and down along with the hinge plate (2), the upper end of the spring (5) is connected to the right-angle round rod (3) and the lower end of the spring (5) hangs the balance weight (6).

2. The mechanical rocker arm-type vertical feeding cushioning device according to claim 1, wherein:

in the elastic limiting devices (4), the included angle between the two elastic limiting plates is equal to the included angle between the edge of the spring (5) hung outside of the box body (7) and the horizontal plane when the right-angle round rod (3) is in its natural state.

3. The mechanical rocker arm-type vertical feeding cushioning device according to claim 1, wherein:

the balance weight (6) is a homogeneous iron block, the weight of which is determined according to the feeding height;

the initial weight of the balance weight (6) is set to 25 kg, the weight of the balance weight (6) increases by 1 kg if the feeding height increases by 10 m, and the maximum weight of the balance weight (6) does not exceed 125 kg.

4. The mechanical rocker arm-type vertical feeding cushioning device according to claim 1, wherein:

the spacing between the two cushioning units disposed in an upper layer and a lower layer in a staggered manner is 300-500 mm;

the projecting of the two cushioning plates (1) in the horizontal direction forms an overlap with each one of the cushioning plates (1) including an overlap segment, wherein each of the overlap segments has an area ⅕

-¼

of the area of one of the cushioning plates (1).