Caterpillar tractors, combine harvesters, straw returning machines, and other farmland work machines, when operating in the field, are likely to be pulled off due to large traction resistance or untimely maintenance. Here's how to remove broken bolts.
1. Remove the dirt from the broken end of the broken bolt. Use the center pin to make a hole in the center of the section. Then install a hand drill with a 6 to 8 mm drill to drill in the center hole of the section. Note that this hole must be drilled . After drilling, remove the small drill and replace it with a drill with a diameter of 16 mm. Continue to expand and drill through the holes of the bolt.
2. Select the electrode with a diameter of 3.2m or less, use the medium and small currents in the drill hole of the broken bolt to weld from the inside to the outside, and use the 1/2 of the entire length of the bolt as the starting point for surfacing. When starting welding, do not start the arc too long so as not to burn the outer wall of the broken bolt. After surfacing to the upper end of the broken bolt, a further cylinder with a diameter of 14 to 16 mm and a height of 8 to 10 mm is continuously welded.
3. After welding is completed, hammer the end face with a hammer to cause the broken bolt to vibrate along its axial direction. Due to the heat generated by the arc and its subsequent cooling, coupled with the vibration at this time, the loosening occurs between the broken bolt and the thread of the body.
4. Look carefully after percussion. When traces of rust fall out at the fracture, you can put the nut of M18 on the stencil welded out and weld the two together.
5. After welding, it is possible to cool slightly. Afterwards, use a spanner to put the wrench on the nut and turn it to the right or left (also twist the nut face with a small hammer while twisting the left and right hands). This will remove the broken bolt. .
6. After removal, thread the inside of the rack hole with a suitable tap to remove rust and other debris from the hole.
Bee Pollen is the pollen ball that has been packed by worker honeybees into pellets. Bee bread is also the bee pollen with added nectar and enzymes and stored in brood cells, chambers of honeybees or of wood and mud created by female ground-nesting when the pollen ball is complete, a single female lays an egg on top of the pollen ball, and seals the brood cell. Pollen balls are harvested as food for humans. Bee pollen is sometimes referred to as ambrosia., whereas with honey bees, the thing to keep in mind is that the forager bees that gather pollen do not eat it themselves, since when they transition to foraging, they stop producing the proteolytic enzymes necessary to digest it. So the foragers unload the pollen they`ve gathered directly into open cells located at the interface between the brood and stored honey, creating a typical band of what is called beebread - the substance which is the main food source for honey bee larvae and workers.
Foraging bees bring pollen back to the hive, where they pass it off to other worker bees, who pack the pollen into cells with their heads. During collection and possibly packing, the pollen is mixed with nectar and bee salivary secretions. Bee pollen is the primary source of protein for the hive. This method of packing can be seen in the bee species
Composition
Like honey and propolis, other well-known honey bee products that are gathered rather than secreted (i.e., in contrast to royal jelly and beeswax), the exact chemical composition depends on the plants the worker bees gather the pollen from, and can vary from hour to hour, day to day, week to week, colony to colony, even in the same apiary, with no two samples of bee pollen exactly identical. Accordingly, chemical and nutritional analyses of bee pollen apply only to the specific samples being tested, and cannot be extrapolated to samples gathered in other places or other times. Although there is no specific chemical composition, the average composition is said to be 40-60% simple sugars (fructose and glucose), 20-60% proteins, 3% minerals and vitamins, 1-32% fatty acids, and 5% diverse other components. A study of bee pollen samples showed that they may contain 188 kinds of fungi and 29 kinds of bacteria. Despite this microbial diversity, stored pollen (also called bee bread) is a preservation environment similar to honey, and contains consistently low microbial biomass.
Use as a health supplement
Bee pollen has been touted by herbalists as a treatment for a variety of medical conditions but there is scientific controversy with some saying it does not have any health benefits whilst others claiming it does. Nonetheless there seems to remain the potential risks of consuming bee pollen that include contamination by fungal mycotoxins, pesticides or toxic metals. Bee pollen is safe for short term use, but for those with pollen allergies, allergic reactions may occur (shortness of breath, hives, swelling, and anaphylaxis). Bee pollen is not safe for pregnant women and should not be used during breastfeeding. The Food and Drug Administration has warned against the use of some bee pollen products because they are adulterated with unapproved drugs including sibutramine and phenolphthalein.
Bee Pollen
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