Transition block for mining winch Polymer interlayer transition block

The transition block between wire rope layers (referred to as the transition block) is suitable for use when the wire rope of a single-rope mine hoist is wound on more than one layer to reduce the occurrence of rope biting, rope squeezing and other unfavorable situations when the wire rope is wound (turning over the rope) to the upper layer. In order to achieve safe and stable rope turning transition, it can extend the service life of the equipment and wire rope.
If there are no special requirements, the number of each group of transition blocks is generally determined according to the following table:
<= d - serial number
Drum diameter
Block/each group


block

.
block


block

.
block


Block

.
Block

The transition area will change quickly due to the poor wear resistance of the wood lining, so the transition Blocks should be used with plastic liners for optimal use.
When installing the transition block, the bottom of the layer transition block should be as close as possible to the plastic lining. The bottom of the layer transition block should be as close as possible to the top of the bottom wire rope. If you have difficulty tapping the rope retaining plate, you can drill a through hole and fix it with a nut. The installation of the transition block must be fixed and reliable to prevent loosening and throwing out and causing accidents.
= Transition block Transition block-d% d
Determination of the spiral direction of the transition block
:
Determination of the left and right hand spiral: Stretch out your hands with your thumbs straightened and four fingers slightly bent. The thumb of the hand is the direction of the wire rope. The four fingers of the hand are the winding direction of the wire rope. If the left hand is left-handed, the right hand is right-handed.
Determine the rope outlet and winding method
:

The position of the gap between the transition block and the wire rope and the rope retaining plate:
Installation method:
Before installation, you should Drill mounting holes and countersunk holes at appropriate locations (positions/blocks) of the transition block. The screws used are cylindrical-head hexagon socket screws (). The depth of the countersunk hole should be such that the head of the screw sinks - it is appropriate.
The elevator with a newly installed plastic lining should be run at least several times under load after the steel wire ropes are installed. The transition block can be installed only after the steel wire ropes are completely arranged.
Installation steps: When the cage is under load, lift the cage to the distance between the elevator wire rope and the rope retaining plate. When the cage is in a circle, test-install the transition block marked with # (the above elevator transition block can be tested starting from # Installation) According to the position of the gap between the wire rope and the rope retaining plate, move it forward as much as possible (see the picture) and mark #Continue to lift the drum. Put the # and # transition blocks in sequence for trial installation. Continue to lift the drum and observe the operation of the wire rope. transition situations and make adjustments.
If the wire rope transition is too fast, the position of the transition block mark can be moved forward as a whole. On the other hand, if the wire rope transition is too slow, the position of the transition block mark can be moved backward as a whole and repeatedly adjusted to the best operating condition to determine the corresponding transition block. Position according to the position of the installation hole of the transition block, drill and tap, and fix the transition block on the rope retaining plate.
Transition block Transition block-d% d
Due to its extremely high molecular weight, the nylon transition block produced by our company has unparalleled wear resistance, impact resistance, corrosion resistance, low temperature resistance, self-lubricating, and other plastic properties. Comprehensive properties such as absorbing impact energy.
Performance characteristics:
The wear resistance ranks the highest among plastics, which is several times higher than that of nylon and polytetrafluoroethylene.
The impact strength ranks first among plastics and can be maintained at liquid nitrogen temperature (-℃), which is a characteristic that no other plastic has.
Excellent chemical resistance. Except for strong oxidizing acid, it can withstand various corrosive media (acid, alkali, salt) and organic media (except naphthalene solvent) within a certain temperature and concentration range. It can be immersed in various organic solvents at ℃ and ℃ without any trace on the surface Abnormal phenomena There are almost no changes in other physical properties.
The impact energy absorption is the highest and the sound attenuation is good.
Extremely low friction coefficient and good self-lubricating properties.
The non-adhesive and anti-adhesive ability is equivalent to Teflon.
Excellent low temperature resistance and still has certain ductility at liquid helium temperature (-℃).
Transition block transition block-d% d