CN101723270A

CN101723270A - Remote traction type crane

Info

Publication number: CN101723270A
Application number: CN201019161007A
Authority: CN
Inventors: 杜泽忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-02-08
Filing date: 2010-02-08
Publication date: 2010-06-09

Abstract

The invention discloses a remote traction type crane which comprises winches, a sliding seat, a guide track of the sliding seat, a limiting wheel, a bearing wheel, a hanging hook and a hanging hook seat, and is characterized in that two ends of the sliding seat are connected with traction steel cables on a traction winch; on one hand, a hoisting steel cable is ridden on a hoisting wheel which is connected with the sliding seat into a whole, on the other hand, the hoisting steel cable holds a bearing wheel of the hanging hook which is connected with the hanging hook seat into the whole; one end of the hoisting steel cable is connected with a hoisting winch, and the other end is connected with a steel frame; and the moving distance of the sliding seat is controlled by a stroke controller. Due to that the sliding seat moves along the track under the traction of the traction winch, the lifting distance is far, which can be up to 250 meters; due to that the steel cables can be selected according to needs, the crane can easily lift an object as heavy as 10 tons; due to that a support, the sliding seat and the hoisting winch can be assembled on the field after being detached into parts, the crane can be conveniently used for transportation, installation and use even in field mountains with non-through roads.

Description

A kind of remote traction type crane

Technical field

The present invention relates to a kind of hoisting crane, particularly relate to the remote traction type crane that a kind of handling distance, hoisting weight are big, be suitable for field work.

Background technology

At present, tower crane commonly used has two kinds of stand alone type and adhesion types, and its complex structure, stressed irrational distribution, the site assembly time is long, operating range is little, its operating range maximum only be 50 meters; Handling is in light weight, and the biggest lifting capacity is less than two tons; And general tower crane is owing to from great, must be transported to work-site by other crane during installation and assemble, this is in the obstructed place of road, for example: open-air high mountain, gully but need the place of hoisting crane, even take the people to draw, add pickaback rolling bar, also difficultly be willing to as the people.Once design-calculated " a kind of hoisting crane that can slide along track " was (CN201010463Y) for I, though solved an above-mentioned difficult problem, but, in use, still have the following disadvantages: one, because positioning stroke switch is not set in orbit, when winch orders about when sliding sway, regular meeting makes lifted weight because of misoperation or slides a bump support and a permanent seat, causes the damage of equipment, parts; Two, original cable one end links to each other with power distribution room, the other end be fixed on the electrical motor that slides on the seat and link to each other, in sliding a crank motion process, cable easily with slide that a guide rail twines mutually so that rupture, easily make whole fuselage charged, have major safety risks; Though three, work well under the reel on even keel; but in the lifting process; because it is oversize to slide a guide rail; under the effect of weight gravity, regular meeting produces an amount of deflection, makes reel be difficult to remain on horizontal general work; can not realize vertical lifting; and can cause hoisting wirerope to be stuck in change-speed box or electrical motor one side, cisco unity malfunction not only consequently, even can cause wire cable rupture or make the electrical motor overload operation and burn.

Summary of the invention

The object of the present invention is to provide the remote traction type crane that can slide along track that a kind of handling distance, hoisting weight are big, man-machine safely, work well, be particularly suitable for field work.

Purpose of the present invention can reach by following technical measures, that is: this remote traction type crane, comprise winch, slide seat, slide a guide rail, position-limited wheel, bogie wheel, hook and hook base, it is characterized in that: slide a two ends and be connected with carrying cable on the rack winch; The lifting wirerope rides over and slides on the lifting wheel that is connected as a single entity of seat on the one hand, catch the hook BOGEY WHEEL that is connected as a single entity with hook base on the other hand; One end of lifting wirerope is connected with hoisting winding, and the other end is connected with steelframe; The miles of relative movement that slides seat is controlled by journey controller.

Described journey controller comprises one and the joining worm reducer of rack winch main shaft, one section leading screw is arranged on the output shaft of worm reducer, a nut is housed on the leading screw, be connected to a connecting rod on the nut, link rod head is stuck in the T slot of positioning plate, and travel switch also is housed on positioning plate.

Slide seat under the traction of rack winch for making, the sway light and flexible is embedded with bearing on the position-limited wheel, and its outer peripheral face is provided with the R groove;

For making weight light and flexible in the lifting process, be embedded with bearing on the lifting wheel, its outer peripheral face is provided with the R groove;

For preventing that the lifting wirerope from skidding off the R groove of lifting wheel and hook BOGEY WHEEL, is provided with bogie wheel and limited;

Its active reel pedestal of described rack winch is fixed on the steelframe, driven reel pedestal is fixed on massif or big ground;

Its reel pedestal of described hoisting winding is fixed on massif or on the ground big;

Described steelframe connects with the earth.

The present invention compared with prior art, but owing to slide seat orbiting under the traction of rack winch, with the hook base that is attached thereto, hook motion, its handling distance, even can reach 250 meters; Owing to slide a guide rail and wirerope can be selected as required, even weighing 10 tons, the object of handling also can realize light lifting, and therefore too much increase cost not; Owing to support, slide seat and hoisting winding all can split into assembling at the scene behind the parts, even need the place of hoisting crane in the obstructed open-air high mountain of road, gully etc., also can easily transport, install, be specially adapted to the stone pit and use; Owing to be provided with and slide a limitation travel switch, avoided because the improper accident that slides seat bump frame or massif that causes of manual operation takes place; Because hoisting winding is located on the massif, avoided the former motor cable that is useful on lifting with sliding the seat operation so that taking place to twine even fracture, make whole fuselage charged, there is the deficiency of major safety risks; Because hoisting winding is located on the massif, make reel remain on horizontal general work, avoided the lifting wirerope of existing equipment to be stuck in many deficiencies that change-speed box or electrical motor one side are brought.In addition, the present invention also has simple in structure, easy for installation, low cost of manufacture, high efficiency, characteristics easy to maintenance, safe and reliable.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is an overall structure scheme drawing of the present invention;

Fig. 2 is the principle of work scheme drawing of journey controller of the present invention.

Among the figure: 1. travel switch, 2. travel switch toucher, 3. rack winch 4. slides a guide rail, 5. the lifting wirerope, 6. bogie wheel 7. slides seat, 8. position-limited wheel, 9. lifting wheel, 10. lifting wirerope, 11. the traction track adjusting wheel, 12. hoisting windings, 13. steelframes, 14. hook BOGEY WHEELs, 15. hook, 16. hook bases, 17. massifs, 18. electrical motors, 19. motor shaft, 20. coupler, 21. retarders, 22. positioning plates, 23. connecting rod, 24. nuts, 25. leading screws, 26 worm reducers.

The specific embodiment

Referring to Fig. 1, a kind of remote traction type crane, comprise rack winch 3, hoisting winding 12, slide seat 7, slide a guide rail 4, position-limited wheel 8, bogie wheel 6, hook 15 and hook base 16, it is characterized in that: slide seat 7 two ends and be connected with carrying cable 10 on the rack winch 3; Lifting wirerope 5 rides over and slides on seat 7 lifting wheels that are connected as a single entity 9 on the one hand, catch the hook BOGEY WHEEL 14 that is connected as a single entity with hook base 16 on the other hand; One end of lifting wirerope 5 is connected with hoisting winding 12, and the other end is connected with steelframe 13; The miles of relative movement that slides seat 7 is subjected to journey controller 2 controls.

Referring to Fig. 2, described journey controller comprises one and the joining worm reducer 26 of rack winch main shaft, one section leading screw 25 is arranged on the output shaft of worm reducer, a nut 24 is housed on the leading screw, be connected to a connecting rod 23 on the nut 24, connecting rod 23 heads are stuck in the T slot of positioning plate 22, and travel switch 1 also is housed on positioning plate.When rack winch is worked, with the coaxial mounted worm reducer work of rack winch, leading screw on the output shaft of worm reducer rotates thereupon, dress nut thereon moves axially, when arriving the position that needs, link rod head touches travel switch, and rack winch is cut off the power supply automatically, thereby has avoided causing weight bump steelframe and massif to cause the deficiency of parts damage because of manual operation is improper.

Described sliding on the seat; be close to the upper and lower that slides a track; two pairs of position-limited wheels that can rotate around the axis 8 and bogie wheel are housed respectively; this design not only can make and slide a seat operation light and flexible, guarantee to slide seat does not overstep the limit; also can reduce the wearing and tearing of its correlated parts greatly, increase the service life.

In the present embodiment, slide a guide rail 4 and be wirerope, an end is fixed on the massif 17, and the other end is fixed on the steelframe 5 that is connected as a single entity with the earth; Why adopting wirerope, is to be convenient to according to different service conditions to select very easily as the weight of the distance of handling distance, handling article.

Certainly, according to construction environment, rack winch 6 both can be positioned on the massif, can be positioned on the steelframe again.In the present embodiment, rack winch 3 is installed on the steelframe, so that maintaining.Slide seat 7 two ends and be connected with carrying cable 10 on the rack winch 3, the wirerope of this moment need not form closure state, and when needs slide seat 7 when the massif direction is moved, startup rack winch, carrying cable just can the traction slide seat 7 be drawn close to massif; Otherwise when needs slide seat 7 when the massif opposite sense move, the rack winch contrarotation because massif has certain angle with ground, is slided toilet and can be slided along sliding a guide rail easily, up to the article delivery with handling arrive need the position.Certainly, do not repel wirerope yet and form closure state, just under such service conditions, there is no need.

According to the above-mentioned remote traction type crane that assembles, during work, start rack winch, earlier will with slide the position that seat runs to be needed, after the wirerope of lifted weight is hung over hook and goes up, restart hoisting winding, weight is hung the height of needs, and then the startup rack winch, weight is transported to the position that needs, thereby finishes a working cycle.

Claims

1. remote traction type crane, comprise rack winch (3), hoisting winding (12), slide seat (7), slide a guide rail (4), position-limited wheel (8), bogie wheel (6), hook (15) and hook base (16), it is characterized in that: slide (7) two ends and be connected with carrying cable (10) on the rack winch (3); Lifting wirerope (5) rides over and slides the hook BOGEY WHEEL (14) that lifting wheel (9) is gone up, caught on the other hand and hook base (16) is connected as a single entity that seat (7) is connected as a single entity on the one hand; One end of lifting wirerope (5) is connected with hoisting winding (12), and the other end is connected with steelframe (13); The miles of relative movement that slides seat (7) is subjected to journey controller (2) control.

2. remote traction type crane according to claim 1, it is characterized in that: described journey controller comprises one and the joining worm reducer of rack winch main shaft (26), one section leading screw (25) is arranged on the output shaft of worm reducer, a nut (24) is housed on the leading screw, be connected to a connecting rod (23) on the nut (24), connecting rod (23) head is stuck in the T slot of positioning plate (22), and travel switch (1) also is housed on positioning plate.

3. remote traction type crane according to claim 1 is characterized in that: slide seat under the traction of traction elevator (3) for making, the sway light and flexible is embedded with bearing on the position-limited wheel, and its outer peripheral face is provided with the R groove.

4. remote traction type crane according to claim 1 is characterized in that: described sliding on the seat (7), be close to the upper and lower that slides a track, and two pairs of position-limited wheels that can rotate around the axis (8) and bogie wheel (6) are housed respectively.

5. remote traction type crane according to claim 1 is characterized in that: its active reel pedestal of described rack winch is fixed on the steelframe (13), driven reel pedestal is fixed on massif (17).