Usual manner is to utilize directly lifting penstock of steel rope, the perpendicular card of steel plate; Length overall, relative height, the weight-lifting equipment of considering the perpendicular card of steel rope, steel plate hoist position and lifting hook with factors such as the vertical point penstock center of gravity; Be difficult to guarantee the synchronized movement between each suspension centre; The situation that the perpendicular card of each steel plate unbalance stress will certainly occur; Can directly cause the penstock lifting like this, fall to producing instantaneous impulse force, this impulse force brings uncertainty for the circularity of penstock and the stationarity of lifting; And the method for conventional high vertical shaft handling penstock is given lifting personnel dress, is torn hook open and also brought very big inconvenience.
Practical fresh content:
The purpose of the utility model is in order to overcome above-mentioned shortcoming; A kind of lifting balance, transportation that can effectively solve the balance of being hung penstock, particularly high vertical shaft is provided, avoids damaging because of the irregular hoist cable that causes of lifting thing; Avoid damage equipment, the penstock lifting equalizing bar device of safety.
The purpose of the utility model realizes like this:
The utility model penstock lifting equalizing bar device; Comprise the lifting equalizing bar; Hanging hook is played with lifting equalizing bar bonded assembly equalizing bar in the upper end, and playing hanging hook with equalizing bar is that the center symmetry is positioned at the connecting bridge machine at lifting two ends, equalizing bar top or the fixed wheel connecting portion of door machine steel rope fixed pulley group with lifting equalizing bar connecting portion, is connected with penstock through steel rope; Effect with same each suspension centre of fulcrum dispersion reaches balance usefulness.
Above-mentioned lifting equalizing bar is the box beam structure.
Above-mentioned lifting equalizing bar bottom lifting place has two suspension hook brace panels parallel to each other, and equalizing bar plays the upper end of hanging hook and stretches in two grooves between the suspension hook brace panel, and the suspension hook adapter shaft is through the suspension hook brace panel and equalizing bar rises in the hole on the hanging hook.
The utility model penstock lifting equalizing bar device is installed and used: after the penstock tube coupling is transported to vertical shaft lifting position; Utilize bridge machine (door machine) to wait the weight-lifting equipment assembly pulley that the utility model equalizing bar device, steel rope, tube coupling are connected, with the steel plate card with each suspension centre of tube coupling tighten, locked; Slowly upgrade hanging hook, tube coupling is placed in the high pressure vertical shaft smoothly; Slowly put down bridge machine steel rope, treat to accomplish this penstock vertical shaft lifting, transportation burden after penstock is transferred to the installation position.
The dismounting of the utility model penstock lifting equalizing bar device: tube coupling lifts to construction part and sets level, and unloads the lower steel plate card, and the utility model equalizing bar device, steel rope, steel plate card are promoted taking-up as a whole, accomplishes next vertical shaft penstock lifting job.
The utility model penstock lifting equalizing bar device can effectively solve the lifting operation of major diameter, large-tonnage penstock in the practice of construction process, the balance that particularly can be used for keeping being hung penstock is avoided hoist cable damage equipment or penstock; Shorten the height of hoist cable, reduce movable pulley sling height; The horizontal pressure that is born during the lifting of minimizing equipment is avoided damage equipment.Also evade simultaneously big part lifting process safe problem, made the safe lifting of penstock under vertical shaft lifting, transportation and other operating mode obtain full-scope safeguards.
Use the utility model device can reduce lifting commander, operating personnel's construction intensity, can effectively evade in the lifting process because of the suspension centre overbalance take place unpredictable; This penstock lifting equalizing bar can reduce the influence of causing for penstock circularity because of lifting, transhipment suspension centre unbalance stress to greatest extent, avoids penstock finished product tube coupling because of lifting operation generation out-of-round phenomenon; Two suspension centres are adopted in the utility model penstock lifting equalizing bar top, can arrange 4 to 8 suspension centre liftings down; The utility model penstock lifting equalizing bar device influences, tears open flexible to the irregular nothing of lifting thing in the handling process, but long-term use is safe and efficient.
The utility model is rational in infrastructure, and stability under loading is dexterous convenient, adorn, tear open easy, guaranteed to the safety of high vertical shaft penstock lifting, transportation.The utility model is suitable for the lifting of penstock tube coupling, the hauling operation of any thickness of slab.
Referring to Fig. 1, Fig. 2; Present embodiment penstock lifting equalizing bar device; The lifting equalizing bar 1 that comprises the box beam structure; Hanging hook 2 is played with lifting equalizing bar bonded assembly equalizing bar in the upper end, plays the fixed wheel connecting portion 3 that hanging hook and lifting equalizing bar connecting portion are center symmetry connecting bridge machine (or door machine) the steel rope fixed pulley group that is positioned at lifting two ends, equalizing bar top with equalizing bar.
Referring to Fig. 1, Fig. 2, bottom lifting place of lifting equalizing bar has two suspension hook brace panels 4 parallel to each other, and equalizing bar plays the upper end of hanging hook and stretches in two grooves between the suspension hook brace panel, and suspension hook adapter shaft 5 is through the suspension hook brace panel and equalizing bar rises in the hole on the hanging hook.
Referring to Fig. 3, the utility model is lifted equalizing bar top two fixed wheel coupling ends be connected with bridge machine (door machine) steel rope fixed pulley group 6.Hanging over equalizing bar plays steel rope 7 lower ends on the hanging hook and is connected just with penstock 8 and can lifts by crane penstock.Sequence number 9 is a chain block among Fig. 3.