CN2181494Y

CN2181494Y - Portable lift

Info

Publication number: CN2181494Y
Application number: CN 93237513
Authority: CN
Inventors: 何兆恒
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-08-26
Filing date: 1993-08-26
Publication date: 1994-11-02
Anticipated expiration: 2003-08-26

Abstract

The utility model relates to a portable lift which is characterized in that the neutral surface of a bobbin line groove of a bobbin disk in a winding system passes through the center of a rolling body of a supporting bearing in both the transverse and the longitudinal directions and is in superposition with the neutral surface of a hook; in a compressing system, the hinging site between a hinge seat and a casing is provided with a double-deck branch hinge seat, and an inclined plane stiffening rib is arranged at the outer surface of the front end. Both the wedge angle of the bobbin line groove of the bobbin disk in winding system and the cone angle of the margin of a compressing wheel in the compressing system must be between 16 DEG 30' and 17 DEG 30'.

Description

Portable lift

The utility model relates to a kind of building operation, lifting lifting means, particularly a kind of portable small-sized lifting means.

The used small-sized lifting means of domestic construction industry mostly is winch and electric block at present, their Heavy Weight, and volume is big, and difficult transportation is carried, and its lift is limited, and limitation is big, needs in addition could work with the 380V power supply, uses inconvenience.

Abroad, French Tirfor company has produced TR ₂Portable gig, it is by body, driving system, brake system, reel system and pressing system, motor and control apparatus thereof, decide the journey delivery system, compositions such as manual reel, though its volume is little, in light weight, be convenient to carry, but problems below it exists, 1. its load force active line does not pass through the midway location of reel bearing roller in the reel system, be it hook and the reel groove center all to retrodeviating 3～4mm, this is mainly used to be avoided not slippage forwards of outside race, but so load produces deflection moment to the bearing ball raceway, reduces the life-span of bearing.After the raceway wearing and tearing, easily form axial thrust, cause that end float misalignment appears in sun wheel in the driving system, clutch bearing before directly shaking in the end braking system, cause clutch bearing to release in the seat hole or loosening, also will damage wherein needle roller, cage (circle) and reed, needle roller is come off, make the braking effect forfeiture, the problem of decline load excessive velocities occurs.2. twisted seat in the pressing system of above-mentioned gig and body hinged place are the individual layer carrier base, so often rupture herein, have destroyed the normal engaged of planet circular system in the driving system, cause host function to lose too early.3. in the driving system end face of planetary wheel and sun gear can scraping the end face of front and back supporting sleeve of sun wheel, the end of cutting that produces falls between cog, has aggravated the damage flank of tooth, has destroyed intrinsic axial space confinement dimension, make sun wheel generation end float misalignment, also can make the braking effect forfeiture.4. in the reel system in the angle of wedge of the serving groove of reel and the pressing system wheel rim cone angle of pinch roller all bigger, reach more than 18 degree, then be prone to too early and skid, though i.e. reel then load can not promote, need often more renew rope.5. the torch door of this gig and feed cable and plug thereof all are arranged on body left side (from the body front), and manually reel and slack list rope outlet all on the right side, so not very convenient when operating.

The purpose of this utility model is exactly in order to address the above problem, and the portable gig of a kind of reliable working performance, easy to operate, long service life is provided.

Technical solution of the present utility model: a kind of portable gig, it includes casing 1, hook 2, by clutch bearing 3, stage clip 4, friction lining 5, the brake system that pressing plate 6 is formed, by sun wheel 7, fixed gear 8, satellite gear 9, the driving system that moving gear 10 is formed, by reel 11, the reel system that steel rope 12 is formed and by keep plate 13, load wheel 14, contact roller 15, guide plate 16, the pressing system that twisted seat 17 is formed, by shackle hook 18, upthrow side is adjustable collision block 19, the decline side is adjustable collision block 20 is formed decides the journey delivery system, and motor 21 and control apparatus and manual reel 22, crank 23, wherein reel system and pressing system are coupled, and it is characterized in that:

A, horizontal and vertical, the equal center by its backup bearing rolling body of the serving groove neutral surface of reel 11 in the reel system, and overlap with the neutral surface of hook 2;

B, in pressing system, its twisted seat 17 is a double-deck twisted seat in hinge joint place with casing 1, the front end appearance has oblique plane reinforced rib 24;

C, for the steel rope 12 of any diameter, in the reel system in the locking angle of the serving groove of reel 11 and the pressing system wheel rim cone angle of contact roller 15 all should be 16 ° 30 '～17 ° 30 '.

Rope capacity of the present utility model is not limit, and can determine hoisting depth arbitrarily, has both adapted to superelevation construction maintenances such as cigarette tower engineering, hotel mansion, is applicable to civil construction construction maintenance and light little load hoisting operation yet.The utility model volume is little, and is in light weight, only weighs 13 kilograms, carries convenient transfer.In addition, load force active line of the present utility model is by bearing roller center, the reliability and the service life of having improved complete machine; Twisted seat place at pressing system adopts the double-layer scaffold seat, and the front end appearance has the plane reinforced rib, so improved the intensity of the local thin end face of body front end actinal surface greatly, guarantees the serviceability of main frame.The utility model is reasonable in design, has overcome the end float misalignment of sun wheel in the legacy system, has guaranteed braking effect, and reel system adopts the best angle of wedge and wheel rim cone angle, and then steel rope is difficult for skidding and damaging, and it is very convenient to operate.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the A-A direction cross sectional drawing of Fig. 1;

Fig. 3 is the B direction view of twisted seat among Fig. 2;

Fig. 4 is the scheme drawing of reel and contact roller joint.

As Fig. 1,2, when the utility model uses, to link up with 2 earlier hangs on the supporting mass, feed cable plug 27 energized (can select 220V, 380V or 110V power supply as required for use), load is hooked on the shackle hook 18, the rising of pressing torch door 28 or decline button, and then motor 21 driving torques increase moment of torsion after driveline retarder slows down, thereby obtain the low-speed running and the specified coiling hoisting capacity of reel 11, finish the lifting or the decline of load.Carry if need to make decide journey, then need according to promoting or dropping distance is adjusted the position of adjustable collision block 19 of upthrow side or the adjustable collision block 20 of decline side, but when the recoil spring above them touch rise outside just auto-stop during limiting device 30 outside limiting device 29 or the decline.During work, slack list rope 26 can be by crank 23 folding and unfoldings on manual reel 22.

In the utility model, because the equal center by its backup bearing rolling body of the serving groove neutral surface of reel 11 in the reel system, and overlap with hook 2 neutral surface, so the load line of action of force is the bearing center by reel 11 all, reduced the raceway wearing and tearing of bearing, can avoid producing the axial thrust between the driving system middle gear, thereby overcome the end float misalignment of sun wheel 7, avoid damaging clutch bearing 3, thereby prolong the service life of brake system.

The utility model wheel shaft two ends of sun wheel 7 in driving system respectively are set with a relocatable catch 25, it is used for preventing the front and back supporting sleeve of sun wheel 7 and satellite gear 9 both ends of the surface scraping sun wheels 7, can reduce the wearing and tearing of gear pair like this, prevent the play of sun wheel 7, in like manner also prolong the service life of brake system, improved the reliability of complete machine.

The utility model is in pressing system, its twisted seat 17 is a double-deck twisted seat in hinge joint place with housing 1, the front end appearance has oblique plane reinforced rib 24(such as Fig. 3), so improved the intensity of the local thin end face of body front end actinal surface greatly, guaranteed the normal engaged of planet circular system.

The work groundwork of steel rope 12 of the present utility model in reel 11 is " Taylor's belt " principle, through repeated calculation and test, reflect card mutually, in its reel system in the locking angle of the serving groove of reel 11 and the pressing system wheel rim cone angle optimum value of contact roller 15 be 17 °, this value all is suitable to the steel rope 12 in any rope footpath, the serving bottom radius R of reel 11 ₁Be 1.75mm, its groove depth h is 10mm, the edge arc radius R of contact roller 15 ₂Be 2.5mm(such as Fig. 4), this is best suited for the steel rope of φ 5.Reel system organically cooperates with pressing system like this, skidding can not occur, and whole aircraft reliability is improved greatly, and reduces the wearing and tearing to steel rope, reduces user's maintenance operating costs.

In the utility model, pressing system is located at the right side (seeing before the slave) of casing 1, and slack list rope 26 and feed cable and plug 27 thereof, torch door 28 are beneficial to the single bimanualness of user of service also all on the right side, and control is used convenient.

Claims

1, a kind of portable gig, it includes casing (1), hook (2), by clutch bearing (3), stage clip (4), friction lining (5), the brake system that pressing plate (6) is formed, by sun wheel (7), fixed gear (8), satellite gear (9), the driving system that moving gear (10) is formed, by reel (11), the reel system that steel rope (12) is formed and by keep plate (13), load wheel (14), contact roller (15), guide plate (16), the pressing system that twisted seat (17) is formed, by shackle hook (18), the adjustable collision block of upthrow side (19), the adjustable collision block of decline side (20) is formed decides the journey delivery system, and motor (21) and control apparatus and manual reel (22), crank (23), wherein reel system and pressing system are coupled, and it is characterized in that:

A, horizontal and vertical, the serving groove neutral surface of reel in the reel system (11) is the center by its backup bearing rolling body all, and overlaps with the neutral surface of hook (2);

B, in pressing system, its twisted seat (17) is a double-deck twisted seat in hinge joint place with casing (1), the front end appearance has oblique plane reinforced rib (24);

C, for the steel rope (12) of any diameter, in the locking angle of the serving groove of reel in the reel system (11) and the pressing system wheel rim cone angle of contact roller (15) all should be 16 ° 30 '～17 ° 30 '.

2, by the described portable gig of claim 1, it is characterized in that the wheel shaft two ends of sun wheel in driving system (7) respectively are set with a relocatable catch (25).

3,, it is characterized in that the wheel rim cone angle optimum value of contact roller (15) in the locking angle of serving groove of reel in the reel system (11) and the pressing system is 17 °, the serving bottom radius R of reel (11) by the described portable gig of claim 1 ₁Be 1.75mm, its groove depth h is 10mm, the edge arc radius R of contact roller (15) ₂Be 2.5mm.

4, by the described portable gig of claim 1, it is characterized in that pressing system is located at the right side of casing (1) (seeing before the slave), slack list rope (26) and feed cable and plug (27) thereof, torch door (28) are beneficial to the one man operation also all on the right side.