CN203402894U - Raising device of portable transformer lifting machine - Google Patents

Abstract

The utility model discloses a raising device of a portable transformer lifting machine. The raising device comprises a carframe, a fork, two chain wheels, two chains and a hoist cylinder. The carframe comprises a base, an outer portal frame which is fixed on the base, and an inner portal frame which is slidably installed on the outer portal frame. The outer portal frame comprises a pair of upright columns, and a bracket which is connected across rear sides of upper portions of the pair of upright columns. The inner portal frame comprises a pair of straight beams and a cross beam. The straight beams of the inner portal frame are slidably installed on inner side surfaces of the pair of upright columns of the outer portal frame. The fork is slidably installed on inner side surfaces of the pair of straight beams of the inner portal frame. The two chain wheels are rotatably lifted on the cross beam of the inner portal frame. The two chains are wounded around the two chain wheels in a one-to-one manner, one end of each chain is connected onto the bracket of the outer portal frame, and the other end of each chain is connected onto the fork. The hoist cylinder is fixed on the base. The upper end of the piston rod of the hoist cylinder is connected onto the cross beam of the inner portal frame. The raising device of the utility model can be used to ensure stable and reliable lifting of the lifting machine.

Description

A kind of jack up unit of portable transformer lifting machine

Technical field

The utility model relates to a kind of jack up unit of portable transformer lifting machine.

Background technology

Along with developing rapidly of national economy, electric power system construction also steps on a new stage, and needs every year the newly-increased a considerable number of electrical equipment of installing, and simultaneously existing electrical equipment needs regular maintenance.

The place of erection of electrical equipment totally can be divided into two kinds of situations, and a kind of is that operating environment is better, and as urban district, highway etc., this situation electrical equipment can lift by rubber tired crane as the installation of voltage transformer.Another kind of situation is that operating environment is poor even severe, as farmland, mountain area etc., this situation rubber tired crane cannot arrive, now electrical equipment as the installation method of voltage transformer is: first utilize electric engineering car that voltage transformer is transported to the near Highway nearest from place of erection, then adopt a dead lift to place of erection, last setting support puts voltage transformer lifting in place.

In the second situation, electrical equipment from highway to this section of place of erection at least tens meters of transportation distance and whole dependence of hoisting process that hundreds of rice even km at most manually complete, there is following defect in current method therefore:

(1) transportation is low with lifting efficiency

Owing to transporting the electric engineering car of electrical equipment, can only be anchored on highway, electrical equipment relies on the mode of a dead lift to complete by lorry to that segment distance that lifts place as voltage transformer completely, and support build need to be longer setup time, therefore transportation is lower with lifting efficiency.

(2) labour intensity is large

Electrical equipment is comprised of iron core, winding, capacitor oil and accessory thereof etc. as voltage transformer, nearly 1 ton of the weight of miniature transformer, even approach 2 tons, so heavy equipment even km to lifting place from tens meters of electric engineering car a dead lifts, hundreds of rice, workmen's labour intensity is excessive, and construction cost is too high.

(3) security risk is large

Electrical equipment is all farmland or mountain area as the distance of voltage transformer carrying, in way, conventionally has gully, and volume of transformer is huge and heavy, and therefore transportation is being contained potential safety hazard greatly with hoisting process.

Along with upgrade of rural power grids, upgrading, as the voltage transformer of one of electrical network important component, increase newly with transformation quantity and increase sharply, therefore voltage transformer being lifted puts in place repeats and hard work being one.

Summary of the invention

The purpose of this utility model is the defect that overcomes prior art, and a kind of jack up unit of portable transformer lifting machine is provided, and effectively solves lifting machine lifting problem out of control when large object of lifting, and it can guarantee that the lifting of lifting machine is steadily reliable.

The technical scheme that realizes above-mentioned purpose is: a kind of jack up unit of portable transformer lifting machine, comprises that vehicle frame, a goods are inserted, two sprocket wheels, two chains and hoist cylinder; Wherein, described vehicle frame comprises that the outer mast and that a base, is fixed on base is slidably mounted in the inner upright mounting on described outer mast, and described outer mast comprises a pair of Men Liang of the column on described base, a top rear that is connected across a column and the bracket of a top rear side that is connected across a column of being fixed on; Described inner upright mounting comprises a pair of straight beam and a crossbeam that is connected across a pair of straight beam upper end, the straight beam of this inner upright mounting is slidably mounted on the medial surface of a column of described outer mast, and described goods is inserted on the medial surface of a pair of straight beam that is slidably mounted in described inner upright mounting; Described two sprocket wheels are lifted on the crossbeam of described inner upright mounting rotationally; Described two chains are walked around two sprocket wheels correspondingly, and one end of these two chains is connected on the bracket of described outer mast, the other end is connected to described goods and plugs; Described hoist cylinder is fixed on described base, and the upper end of the piston rod of this hoist cylinder is connected on the crossbeam of described inner upright mounting.

The jack up unit of above-mentioned portable transformer lifting machine, wherein, described goods is inserted and to be comprised a bracket and to be a pair ofly suspended on sliding rack and transversely movable slotting arm.

The jack up unit of above-mentioned portable transformer lifting machine, wherein, described two sprocket wheels are lifted on the crossbeam of described inner upright mounting by a bearing pin.

The jack up unit of portable transformer lifting machine of the present utility model, utilize hoist cylinder drive and can bear larger load by chain gear, effectively solve lifting machine lifting problem out of control when large object of lifting, thereby and can guarantee that the lifting of lifting machine is steadily reliable.

Accompanying drawing explanation

Fig. 1 is the structural representation of the jack up unit of portable transformer lifting machine of the present utility model;

Fig. 2 is the birds-eye view of Fig. 1.

The specific embodiment

In order to make those skilled in the art can understand better the technical solution of the utility model, below in conjunction with accompanying drawing, its specific embodiment is described in detail:

Refer to Fig. 1 and Fig. 2, the jack up unit of portable transformer lifting machine of the present utility model, comprises that vehicle frame, a goods insert 2, two sprocket wheels 31, two chains 32 and hoist cylinders 30.

Vehicle frame comprises that the outer mast 12 and that a base 11, is fixed on base 11 is slidably mounted in the inner upright mounting 13 on outer mast 12.

Outer mast 12 comprises column on a pair of front transverse arm 112 that is fixed on base 11 121, door beam 122 and a bracket 123 that is connected across the top rear side of a column 121 that is connected across the top rear of a column 121; Column 121 is that channel-section steel is as the orbit of inner upright mounting 13;

Inner upright mounting 13 comprises a pair of straight beam 131 and a crossbeam 132 that is connected across a pair of straight beam 131 upper ends; Also to be channel-section steel insert 2 orbit as goods to a pair of straight beam 131, and roller 133 is installed on lateral surface correspondingly, and inner upright mounting 13 is slidably mounted on the medial surface of a column 121 of outer mast 12;

Goods is inserted 2 and is slidably mounted on the medial surface of a pair of straight beam 131 of inner upright mounting 13; Goods is inserted 2 and is comprised sliding rack 21 and be a pair ofly suspended on sliding rack 21 and transversely movable slotting arm 22; Can need to adjust the distance between a pair of slotting arm 22 according to operation;

Two sprocket wheels 31 are lifted on the crossbeam 132 of inner upright mounting 13 rotationally by a bearing pin;

Two chains 32 are walked around two sprocket wheels 31 correspondingly, and one end of these two chains 32 is connected on the bracket 123 of outer mast 12, the other end is connected to goods and inserts on 2 sliding rack 21;

Hoist cylinder 30 is fixed on base 11, and the upper end of the piston rod of this hoist cylinder 30 is connected on the crossbeam 132 of inner upright mounting 13.

The jack up unit of portable transformer lifting machine of the present utility model, by pressure oil being injected to hoist cylinder 30, make the piston rod one speed V upward movement of hoist cylinder 30, promoting inner upright mounting 13 hoists with same speed V, due to movable pulley principle, chain 32 is leading the slotting 2 speed V with twice of goods and is hoisting, the piston rod of hoist cylinder 30 is elongated to after end position, inner upright mounting 13 is in the top of outer mast 12 end position, goods inserts 2 in the top of inner upright mounting 13 end position, during pressure oil in releasing hoist cylinder 30, the members such as goods and goods are slotting decline by self gravitation.

The jack up unit of portable transformer lifting machine of the present utility model, utilize hoist cylinder to drive and by chain gear, can bear larger load, effectively solve lifting machine lifting problem out of control when large object of lifting, thereby and can guarantee that the lifting of lifting machine is steadily reliable.

Those of ordinary skill in the art will be appreciated that, above embodiment is only for the utility model is described, and be not used as restriction of the present utility model, as long as within the scope of connotation of the present utility model, to the variation of the above embodiment, modification, all will drop within the scope of claims of the present utility model.

Claims (3)

1. a jack up unit for portable transformer lifting machine, comprises that vehicle frame, a goods are inserted, two sprocket wheels, two chains and hoist cylinder, it is characterized in that,

Described vehicle frame comprises that the outer mast and that a base, is fixed on base is slidably mounted in the inner upright mounting on described outer mast, and described outer mast comprises a pair of Men Liang of the column on described base, a top rear that is connected across a column and the bracket of a top rear side that is connected across a column of being fixed on; Described inner upright mounting comprises a pair of straight beam and a crossbeam that is connected across a pair of straight beam upper end, and the straight beam of this inner upright mounting is slidably mounted on the medial surface of a column of described outer mast;

Described goods is inserted on the medial surface of a pair of straight beam that is slidably mounted in described inner upright mounting;

Described two sprocket wheels are lifted on the crossbeam of described inner upright mounting rotationally;

Described two chains are walked around two sprocket wheels correspondingly, and one end of these two chains is connected on the bracket of described outer mast, the other end is connected to described goods and plugs;

Described hoist cylinder is fixed on described base, and the upper end of the piston rod of this hoist cylinder is connected on the crossbeam of described inner upright mounting.

2. the jack up unit of portable transformer lifting machine according to claim 1, is characterized in that, described goods is inserted and to be comprised a bracket and to be a pair ofly suspended on sliding rack and transversely movable slotting arm.

3. the jack up unit of portable transformer lifting machine according to claim 1, is characterized in that, described two sprocket wheels are lifted on the crossbeam of described inner upright mounting by a bearing pin.

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