A method for evaluating the unloading impact of a loader bucket
An evaluation method, loader technology
Active Publication Date: 2019-06-28
QINGDAO LOVOL EXCAVATOR
View PDF5 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Moreover, the vibration it generates will also cause other damage, such as loosening of fixing bolts such as pipeline harnesses, impact cracks in welds, impact on the driving cylinder, and vibration of the loading machine.
[0004] The inventor found that there is currently no clear impact evaluation method to measure whether the impact of the collision during unloading is reasonable, but passively adopts a way to reduce damage, such as using rubber cushions at the bolt joints to reduce vibration, and using washers and glue for bolts to prevent damage. Vibration loosening, etc.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0025] Wheel loader structure such as figure 1 As shown, it includes: bucket, boom and frame, and headlights are arranged on the boom; since the headlights are set on the boom, the high-amplitude vibration generated by the impact of the loader bucket unloading becomes an influence The main external factors of the failure of the headlights, at the same time, will also cause the loosening of fixing bolts such as other pipeline harnesses.
[0026] refer to figure 2 After the loader shovels the material on the ground, the bucket is retracted and transported to the destination position. After being lifted to the highest position, the bucket is flipped down to realize unloading. It collides with the limit surface of the boom to achieve the purpose of limit and vibration discharge. At this time, the collision impact will cause the structure to vibrate, causing the failure of the headlight and other aforementioned problems.
[0027] refer to image 3 , it is assumed that the link...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a method for evaluating the unloading impact of a loader bucket. The method comprises the steps that in the unloading state, the rotating energy of a bucket limiting block at the contact moment of a bucket and a movable arm is calculated, the rotating energy is compared with ideal rotating energy obtained through experiments, and if the rotating energy obtained through calculation is larger than the ideal rotating energy, it is judged that the unloading impact of the loader bucket is too large. The invention has the beneficial effects that the rotation energy of the bucket limiting block at the contact moment of the bucket and the movable arm is related to the relative position of each hinge point of the connecting rod mechanism and the moment of inertia of the bucket, and the rotation energy obtained by actual calculation is not greater than ideal rotation energy by adjusting the position of the hinge point of the connecting rod mechanism; and clear parameter standard guidance is provided for the position design of each hinge point when the loader connecting rod mechanism is developed.
Description
technical field [0001] The invention relates to the technical field of wheel loaders, in particular to an evaluation method for the discharge impact of a loader bucket. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] As the main construction machinery and equipment for infrastructure construction, wheel loaders have high shovel loading efficiency, which greatly improves the speed of engineering construction. Due to the complex and harsh working conditions of infrastructure projects, the reliability requirements for loaders are extremely high. Among them, the reliable operation of the loader headlights is an indispensable condition for the loader to work at night. The reliability of the headlights is mainly determined by two aspects, one is the life of the headlights itself, and the other is the external environment (power supply, vibrati...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 宋洋洋陈维雄吴琼蒙小行贾方闻王孟刘虹
Owner QINGDAO LOVOL EXCAVATOR