CN203306953U

CN203306953U - Automatic crane lifting zoom device

Info

Publication number: CN203306953U
Application number: CN2013203449066U
Authority: CN
Inventors: 王远军; 孟庆琳; 张通友; 卢胜军
Original assignee: Shandong Fenghui Equipment Technology Co Ltd
Current assignee: Shandong Fenghui Equipment Technology Co Ltd
Priority date: 2013-06-17
Filing date: 2013-06-17
Publication date: 2013-11-27
Anticipated expiration: 2023-06-17

Abstract

The utility model provides an automatic crane lifting zoom device capable of directly realizing automatic lifting zoom through operation of a driver, thereby being simple, convenient and feasible to operate, safe, reliable, time-saving and labor-saving. The automatic crane lifting zoom device comprises a dead pulley, a zoom pulley, a movable pulley block, a hanging beam and a fixing shaft; the fixing shaft is arranged on a crane, and the dead pulley and a steel wire rope fixer are installed on the fixing shaft; one end of the hanging beam is hinged on the fixing shaft, and a hanging shaft is arranged at the other end of the hanging beam; the zoom pulley is installed on a pulley shaft, the pulley shaft is located below the hanging shaft, a hanging plate is connected on the pulley shaft, and the hanging plate can be integrally hung with the hanging shaft; the movable pulley block is installed on a movable pulley bracket through a movable pulley shaft, the movable pulley shaft is located below the pulley shaft and comprises a first movable pulley and a second movable pulley; the dead pulley, the first movable pulley, the zoom pulley and the second movable pulley are sequentially wound through steel wire ropes.

Description

The automatic zoom rate of crane hoisting device

Technical field

The utility model relates to a kind of hoisting crane zoom rate device, and the especially a kind of automatic zoom rate of manually operated crane hoisting device that do not need, belong to engineering machinery field.

Background technology

The mode of hoisting crane by the conversion multiplying power realizes that the conversion of hoisting capacity and lifting velocity is to meet the requirement of different user and different construction periods.And the conversion multiplying power is generally to realize by a slice zoom rate pulley, this sheet zoom rate pulley can serve as movable pulley, also can serve as fixed pulley.When serving as movable pulley, zoom rate pulley is pressed abd fixed on by hoist rope on the running block of suspension hook, is at this moment the low range state, and hoisting capacity is little, and lifting velocity is large; When serving as fixed pulley, zoom rate pulley is fixed on the end of arm in some way, is now the high magnification state, and hoisting capacity is large, but lifting velocity is little.The key of conversion multiplying power operation is the fixing and disengagement of zoom rate pulley in the arm end.At present, zoom rate pulley is the mode that adopts bearing pin fixing at the fixing of arm end basically, need to play suspension hook to be raised to maximum height, by the pin shaft hole of manual operation zoom rate pulley, aims at the pin shaft hole of arm end, and bearing pin is installed.The shortcoming of this mode is the personal height operation, abnormally dangerous, and efficiency is very low.

The utility model content

For overcoming above-mentioned defect of the prior art and deficiency, the utility model provides the automatic zoom rate of a kind of crane hoisting device, can be directly operation by the driver realize the auto-changing multiplying power that hoists, easy to operation, safe and reliable, time saving and energy saving.

The technical solution adopted in the utility model is as follows:

The automatic zoom rate of a kind of crane hoisting device, comprise fixed pulley, zoom rate pulley, running block, drop in beam and anchor shaft; Anchor shaft is arranged on hoisting crane, and fixed pulley and Wirerope fixing device are installed on anchor shaft; Drop in beam one end is hinged on anchor shaft, and the drop in beam other end is provided with hanging scroll; Zoom rate pulley is arranged on sheave shaft, and sheave shaft is positioned at the hanging scroll below, on sheave shaft, is connected with link plate, and this link plate can articulate and be integrated with hanging scroll; Running block is arranged on the movable pulley frame by the movable pulley axle, and the movable pulley axle is positioned at sheave shaft below, and running block comprises the first movable pulley and the second movable pulley; Fixed pulley, the first movable pulley, zoom rate pulley and the second movable pulley are wound around successively by steel rope.

Preferably, on link plate, be provided with the pocket for the punch head that can hold hanging scroll, and link plate is provided with block.

Preferably, on link plate, outwards be provided with downward-sloping extended surface along the pocket for the punch head side.

Preferably, pocket for the punch head is semicircular structure.

Preferably, by a rotating shaft, be connected with baffle plate on link plate, the baffle plate center of gravity is positioned at the left side of center of turn.

Preferably, baffle plate lower-left end is connected with clump weight.

Preferably, the baffle plate upper end is the dip plane that is tilted to lower setting.

Preferably, link plate is two, is separately positioned on the sheave shaft two ends.

The utility model beneficial effect:

1) without personnel, climb to the arm end and carry out packing into of zoom rate pulley pin shaft and split out, the risk of having avoided aloft work to bring, make hoisting crane hommization more.

2) time and labour saving, because zoom rate process is automatically to carry out, move more coherently, so efficiency is high more a lot of than manual operation, easy operating, easily, do not need extra personnel to coordinate in addition except the driver.

The accompanying drawing explanation

Fig. 1 is the utility model structural representation;

Fig. 2 is the lateral plan of Fig. 1;

Fig. 3 a is that two multiplying powers become four multiplying power process schematic diagrams to Fig. 3 d, and wherein Fig. 3 a-2 is the lateral plan of Fig. 3 a-1, and Fig. 3 b-2 is the lateral plan of Fig. 3 b-1, and Fig. 3 c-2 is the lateral plan of Fig. 3 c-1, and Fig. 3 d-2 is the lateral plan of Fig. 3 d-1;

Fig. 4 is that four multiplying powers become two multiplying power process signals, and scheming wherein Fig. 4 a-2 is the lateral plan of Fig. 4 a-1, and Fig. 4 b-2 is the lateral plan of Fig. 4 b-1, and Fig. 4 c-2 is the lateral plan of Fig. 4 c-1, and Fig. 4 d-2 is the lateral plan of Fig. 4 d-1;

1. fixed pulleys in figure, 2. drop in beam, 3. hanging scroll, 4. link plate, 401. pocket for the punch head, 402. extended surfaces, 403. blocks, 5. baffle plate, 501. dip plane, 6. zoom rate pulley, 7. running block, 8. anchor shaft, 9. Wirerope fixing device, 10. the first movable pulley, 11. the second movable pulley, 12. clump weights, 13. sheave shafts, 14. the movable pulley frame, 15. movable pulley axles, 16, steel rope.

The specific embodiment

Referring now to Figure of description, illustrate selected embodiment of the present utility model, the following explanation of embodiment of the present utility model is only exemplary, is not in order to limit scheme of the present utility model.

With reference to figure 1,2, the automatic zoom rate of a kind of crane hoisting device, comprise fixed pulley 1, zoom rate pulley 6, running block 7, drop in beam 2 and anchor shaft 8; Anchor shaft 8 is arranged on hoisting crane, and fixed pulley 1 and Wirerope fixing device 9 are installed on anchor shaft 8; Drop in beam 2 one ends are hinged on anchor shaft 8, and drop in beam 2 other ends are provided with hanging scroll 3; Zoom rate pulley 6 is arranged on sheave shaft 13, and sheave shaft 13 is positioned at hanging scroll 3 belows, on sheave shaft 13, is connected with link plate 4, and this link plate 4 can articulate and be integrated with hanging scroll 3; Running block 7 is arranged on movable pulley frame 14 by movable pulley axle 15, and movable pulley axle 15 is positioned at sheave shaft below, and running block comprises the first movable pulley 10 and the second movable pulley 11; Fixed pulley, the first movable pulley, zoom rate pulley and the second movable pulley are wound around successively by steel rope 16.

In the present embodiment, on link plate 4, be provided with the pocket for the punch head 401 that can hold hanging scroll 3, and link plate 4 is provided with block 403, pocket for the punch head 401 is semicircular structure, when anchor shaft 8 rotates, can meet the swing requirement that link plate 4 was hung into or thrown off to hanging scroll 3 when drop in beam 2.

In the present embodiment, along pocket for the punch head 401 sides, outwards be provided with downward-sloping extended surface 402 on link plate 4, baffle plate 5 upper ends are that the 501， dip plane 501, dip plane and the extended surface 402 that are tilted to lower setting play the guiding role when hanging scroll 3 is hung into or thrown off.

In the present embodiment, on link plate 4, be connected with baffle plate 5 by a rotating shaft, baffle plate 5 centers of gravity are positioned at the left side of center of turn, baffle plate 5 lower-left ends are connected with clump weight 12, at Action of Gravity Field lower baffle plate 5, can rotate around the axis, under clump weight 12 effects, block 403 by link plate 4 spacing, baffle plate 5 can stop in the position shown in the figure 1, and the state of namely closing the door can prevent hanging scroll 3 disengagements.

In practice, link plate 4 is two, is separately positioned on the two ends of sheave shaft 13.

To as shown in Fig. 3 d-2, when two multiplying powers became four multiplying powers, suspension hook rose as Fig. 3 a-1, and hanging scroll 3 contact 501Bing Yan dip plane 501, dip plane are descending, until bump against baffle plate 5, and made hanging scroll 3 slightly lower than the pocket for the punch head 401 of link plate 4.The suspension hook climbed, under Action of Gravity Field, hanging scroll 3 will enter in the pocket for the punch head 401 of link plate 4 slowly, drop in

beam

2 and 6 combinations of zoom rate pulley, the operation suspension hook descends, and zoom rate pulley 6 is separated with running block 7, completes the process that two multiplying powers become four multiplying powers.

As shown in Figure 4 a-1 to 4 d-2, when four multiplying powers become two multiplying powers, the operation suspension hook rises, until zoom rate pulley 6 enters running block 7 and is combined as a whole, the suspension hook climbed, hanging scroll 3 contact extended surfaces 402 descending along extended surface 402, pressing simultaneously baffle plate 5 to clockwise rotate, until baffle plate 5 separates and return under Action of Gravity Field with hanging scroll 3, the operation suspension hook descends, and hanging scroll 3 separates with zoom rate pulley 6, because baffle plate 5 has been closed the door, therefore hanging scroll 3 can not reenter pocket for the punch head 401 under Action of Gravity Field, complete four multiplying powers and become two multiplying power processes.

Although above-mentioned, by reference to the accompanying drawings the specific embodiment of the present utility model is described; but be not the restriction to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various modifications that creative work can make or distortion still in protection domain of the present utility model.

Claims

1. the automatic zoom rate of a crane hoisting device, is characterized in that: comprise fixed pulley (1), zoom rate pulley (6), running block (7), drop in beam (2) and anchor shaft (8); Anchor shaft (8) is arranged on hoisting crane, upper fixed pulley (1) and the Wirerope fixing device (9) installed of anchor shaft (8); It is upper that drop in beam (2) one ends are hinged on anchor shaft (8), and drop in beam (2) other end is provided with hanging scroll (3); It is upper that zoom rate pulley (6) is arranged on sheave shaft (13), and sheave shaft is positioned at hanging scroll (3) below, on sheave shaft, is connected with link plate (4), and this link plate (4) can articulate and be integrated with hanging scroll (3); It is upper that running block is arranged on movable pulley frame (14) by movable pulley axle (15), and movable pulley axle (15) is positioned at the sheave shaft below, and running block comprises the first movable pulley and the second movable pulley; Fixed pulley (1), the first movable pulley (10), zoom rate pulley (6) and the second movable pulley (11) are wound around successively by steel rope (16).

2. the automatic zoom rate of crane hoisting device according to claim 1, is characterized in that: on link plate (4), be provided with the pocket for the punch head (401) that can hold hanging scroll (3), and link plate (4) is provided with block (403).

3. the automatic zoom rate of crane hoisting device according to claim 2, it is characterized in that: link plate (4) is upper outwards is provided with downward-sloping extended surface (402) along pocket for the punch head (401) side.

4. according to the automatic zoom rate of the described crane hoisting of claim 2 or 3 device, it is characterized in that: pocket for the punch head (401) is semicircular structure.

5. the automatic zoom rate of crane hoisting device according to claim 1, it is characterized in that: link plate (4) is upper is connected with baffle plate (5) by a rotating shaft, and baffle plate (5) center of gravity is positioned at the left side of center of turn.

6. the automatic zoom rate of crane hoisting device according to claim 5, it is characterized in that: baffle plate (5) lower-left end is connected with clump weight (12).

7. the automatic zoom rate of crane hoisting device according to claim 5, it is characterized in that: baffle plate (5) upper end is the dip plane (501) that is tilted to lower setting.

8. according to claim 1 or the automatic zoom rate of the described crane hoisting of 2 or 3 or 5 or 6 or 7 any one device, it is characterized in that: link plate (4) is two, and the sheave shaft two ends are set respectively.