CN201254440Y - Hoister operating mechanism for hanging cradle with two stage pinch wheel mechanism - Google Patents
Hoister operating mechanism for hanging cradle with two stage pinch wheel mechanism Download PDFInfo
- Publication number
- CN201254440Y CN201254440Y CNU2008200415527U CN200820041552U CN201254440Y CN 201254440 Y CN201254440 Y CN 201254440Y CN U2008200415527 U CNU2008200415527 U CN U2008200415527U CN 200820041552 U CN200820041552 U CN 200820041552U CN 201254440 Y CN201254440 Y CN 201254440Y
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- rope
- pressure roller
- stage
- stage pressure
- casing
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Abstract
The utility model relates to an operating mechanism for a lifting device, in particular to a lifting machine operating mechanism for a sling basket with two stage clamping roller mechanism; the device comprises a case body, and a rope inlet is arranged at the upper side of the case body. The operating mechanism is characterized in that; a rope pulley is arranged in the case body, a V-shaped groove is arranged on the outer circularity of the rope pulley; and L-shaped two stage clamping roller mechanisms are arranged at the upper part and the sides thereof; wherein, the clamping roller is arranged on a first stage lever nearby a rope pulley end, and the other end is connected with a second stage lever through a connecting rod; a pulling rod is arranged on the second stage lever, and a spring is sleeved on the pulling rod; one end of the spring is propped against a spring seat, and the other end is ended on the pulling rod through a pulling rod sleeve and a nut. A rope outlet is arranged at the lower part of the case body; and an arc-shaped check ring is arranged on the outer circularity of the rope pulley correspondingly to the rope outlet, a rope-separating block and the other side of the clamping roller. The lifting machine operating mechanism for a sling basket with two stage clamping roller mechanism has the advantages that the work performance is stable and reliable, the structure is simple, the volume is small, the manufacture cost is low, the service life is long, and the rated lifting force can be increased.
Description
Technical field
The utility model relates to a kind of operating mechanism of bont, relates in particular to a kind of hoist working mechanism for nacelle that has two-stage pressure roller mechanism.
Background technology
Aerial work basket is widely used in external wall construction and the decoration and the fitting-out work of high level and multi-story structure as a kind of electric lifting finishing machinery.Gig is the engine installation of aerial work basket, plays crucial effects.At present, the hanging basket usefulness α type gig that generally uses, the pressing wheel mechanism lever is long, and spring stiffness is big, pinch roller is little, steel rope has small beating when hanging basket normally moves, and press rope wheel is damaged, and the specified hoisting force of this mechanism is also less, improve specified hoisting force iff the power that strengthens braking motor, will cause hanging basket steel rope when moving up and down to skid because of the friction force of steel rope in the rope sheave V-shaped groove is not enough, dangerous.
Summary of the invention
The purpose of this utility model is a kind of hoist working mechanism for nacelle that has two-stage pressure roller mechanism of design, reduces press rope wheel mechanism lever length and spring stiffness, increases the pinch roller diameter, increases the specified hoisting force of gig.
The technical scheme that provides according to the utility model: the described hoist working mechanism for nacelle that has two-stage pressure roller mechanism comprises: casing and be positioned at the rope inlet on casing top, rope sheave is arranged in casing, and it is characterized in that: on described rope sheave, two-stage pressure roller mechanism is arranged; In described two-stage pressure roller mechanism, the right-hand member and the casing of first order lever are hinged, one end of the left end of first order lever and connecting rod is hinged, and the right-hand member of the other end of connecting rod and second stage lever is hinged, and the left end of second stage lever is hinged with the upper end of the pull bar that can move up and down; At the hinged side plate of a side of close its right-hand member in the middle part of first order lever, connect pinch roller in the bottom of side plate, be with spring on the described pull bar, lower box has rope outlet; Described pinch roller is pressed on the rope sheave.
On the cylindrical of rope sheave, corresponding to rope outlet, divide the opposite side of rope piece and pinch roller that the circular arc back-up ring is set.Between the front and rear wall of casing wheel shaft is set, described rope sheave utilizes bearing installation on wheel shaft; Cylindrical at rope sheave is provided with V-shaped groove.
Upper end at described pull bar is provided with spring perch, in the lower end of pull bar drag link sleeve is set, and described spring is between spring perch and drag link sleeve.Described rope outlet and rope inlet are distinguished in a tubular form, and the outlet section of rope outlet departs from the central axis of rope inlet.Described pinch roller has two, and the vertical centre axis of the central axis of two pinch rollers and rope sheave is on same straight line.Rope outlet, rope inlet, pull bar and spring are distributed in the same side of operating mechanism.
The utlity model has that working stability is reliable, simple in structure, volume is less, cheap for manufacturing cost, long service life, can increase advantages such as specified hoisting force.
Description of drawings
Fig. 1 is an integral structure scheme drawing of the present utility model.
Fig. 2 is the scheme drawing of pressing wheel mechanism 4 among Fig. 1.
The specific embodiment
As shown in Figure 1: the described hoist working mechanism for nacelle that has two-stage pressure roller mechanism comprises: casing 6, and be positioned at the rope inlet 5 on casing 6 tops, and rope sheave 2 is arranged in casing 6, it is characterized in that: on described rope sheave 2, two-stage pressure roller mechanism 4 is arranged; In described two-stage pressure roller mechanism 4, the right-hand member of first order lever 10 and casing 6 are hinged, one end of the left end of first order lever 10 and connecting rod 9 is hinged, and the right-hand member of the other end of connecting rod 9 and second stage lever 8 is hinged, and the left end of second stage lever 8 is hinged with the upper end of the pull bar 17 that can move up and down; At the hinged side plate 12 of a side of close its right-hand member in the middle part of first order lever 10, connect pinch roller 13 in the bottom of side plate 12, be with spring 16 on the described pull bar 17, rope outlet 1 is arranged at casing 6 bottoms; Described pinch roller 13 is pressed on the rope sheave 2.
On the cylindrical of rope sheave 2, corresponding to rope outlet 1, divide the opposite side of rope piece 3 and pinch roller 13 that circular arc back-up ring 7 is set.Between the front and rear wall of casing 6 wheel shaft is set, described rope sheave 2 utilizes bearing installation on wheel shaft; Cylindrical at rope sheave 2 is provided with V-shaped groove.
In the upper end of described pull bar 10 spring perch 15 is set, in the lower end of pull bar 10 drag link sleeve 18 is set, described spring 16 is between spring perch 15 and drag link sleeve 18.Described rope outlet 1 is distinguished in a tubular form with rope inlet 5, and the outlet section of rope outlet 1 departs from the central axis of rope inlet 5.Described pinch roller 13 has two, and the vertical centre axis of the central axis of two pinch rollers 13 and rope sheave 2 is on same straight line.Rope outlet 1, rope inlet 5, pull bar 17 and spring 16 are distributed in the same side of operating mechanism.
Described casing 6 is flat-shaped cuboid enclosed construction, and its upper surface is processed with the import of rope inlet 5, leaves the V-shaped groove of rope sheave 2 for preventing steel rope, on the cylindrical of rope sheave 2, corresponding to rope outlet 1, divide the opposite side of rope piece 3 and pinch roller 13 that circular arc back-up ring 7 is set.
As illustrated in fig. 1 and 2: the top of rope sheave 2 and next door are provided with L shaped two-stage pressure roller mechanism 4.The described L shaped pull bar 17 that is meant becomes L shaped with lever arrangement.Have two holes accordingly on the right-hand member of first order lever 10 and casing 6 front and rear walls, first order lever 10 utilizes bearing pin to be hinged on the casing 6.First order lever 10 middle parts take over and are provided with the hole, and side plate 12 is installed on the first order lever 10 by bearing pin and this hole.There are two holes side plate 12 belows with the central axis symmetric arrangement, and pinch roller 13 is installed on the side plate 12 by wheel pressing shaft 11 and this hole, and pinch roller 13 wherein offsets with the cylindrical of rope sheave 2.Have two holes accordingly on the right-hand member of second stage lever 8 and casing 6 front and rear walls, be fixed on the casing 6 by bearing pin, its left end is connected with pull bar 17, described pull bar 17 is vertical layout, one end of spring 16 withstands on the spring perch 15, and the other end is enclosed on the pull bar 17 by drag link sleeve 18 and nut 19.
Of the present utility modelly enter the position of rope outlet 5 and the spring 16 in the two-stage pressure roller mechanism 4 is distributed in gig the same side, the vertical centre axis of the central axis of two pinch rollers 13 and rope sheave 2 is on same straight line, satisfying under the condition of certain lever ratio, two-stage pressure roller mechanism 4 of the present utility model adopts the form of slab short lever secondary transmission, leverage is divided into first order lever, second stage lever two parts, the thickening lever plate also shortens the length of lever, be convenient to reduce the form and position tolerance when making, also improved the rigidity of lever simultaneously effectively; Consider that steel rope weight also increases thereupon when adopting large diameter steel rope, the central axis of rope inlet 5 is departed from rope outlet 1 and power output hole respectively a little, makes steel rope be in plumbness when the rope sheave V-shaped groove is walked out, and does not intersect with the power output hole.
When the hoist working mechanism for nacelle that has two-stage pressure roller mechanism of the present utility model is worked, rope sheave 3 rotates under the drive of actuating unit, steel rope enters in the casing 6 from the rope inlet 5 of casing 6, and behind the V-shaped groove that enters under minute effect of rope piece 3 on rope sheave 2 cylindricals, with rope sheave 2 rotations.Under the combined action of pinch roller 13, first order lever 10, second stage lever 8, spring perch 15, spring 16 and the pull bar 17 of L shaped two-stage pressure roller mechanism 4, steel rope is pressed in the V-shaped groove of rope sheave 2, and with rope sheave 2 mutual friction mutually, generation work hoisting force, the traction hanging basket climbs along steel rope, cooperates high-performance braking motor to increase the rated load of gig again.
Claims (7)
1, the hoist working mechanism for nacelle that has two-stage pressure roller mechanism comprises casing (6), and is positioned at the rope inlet (5) on casing (6) top, and rope sheave (2) is arranged in casing (6), it is characterized in that: two-stage pressure roller mechanism (4) is arranged on described rope sheave (2); In described two-stage pressure roller mechanism (4), the right-hand member of first order lever (10) and casing (6) are hinged, one end of the left end of first order lever (10) and connecting rod (9) is hinged, the right-hand member of the other end of connecting rod (9) and second stage lever (8) is hinged, and the left end of second stage lever (8) is hinged with the upper end of the pull bar (17) that can move up and down; At the hinged side plate of a side (12) of close its right-hand member in the middle part of first order lever (10), connect pinch roller (13) in the bottom of side plate (12), be with spring (16) on the described pull bar (17), rope outlet (1) is arranged at casing (6) bottom; Described pinch roller (13) is pressed on the rope sheave (2).
2, the hoist working mechanism for nacelle that has two-stage pressure roller mechanism as claimed in claim 1 is characterized in that: on the cylindrical of rope sheave (2), corresponding to rope outlet (1), divide the opposite side of rope piece (3) and pinch roller (13) that circular arc back-up ring (7) is set.
3, the hoist working mechanism for nacelle that has two-stage pressure roller mechanism as claimed in claim 1 is characterized in that: between the front and rear wall of casing (6) wheel shaft is set, described rope sheave (2) utilizes bearing installation on wheel shaft; Cylindrical at rope sheave (2) is provided with V-shaped groove.
4, the hoist working mechanism for nacelle that has two-stage pressure roller mechanism as claimed in claim 1, it is characterized in that: spring perch (15) is set in the upper end of described pull bar (10), in the lower end of pull bar (10) drag link sleeve (18) is set, described spring (16) is positioned between spring perch (15) and the drag link sleeve (18).
5, the hoist working mechanism for nacelle that has two-stage pressure roller mechanism as claimed in claim 1 is characterized in that: described rope outlet (1) is distinguished in a tubular form with rope inlet (5), and the outlet section of rope outlet (1) departs from the central axis of rope inlet (5).
6, the hoist working mechanism for nacelle that has two-stage pressure roller mechanism as claimed in claim 1 is characterized in that: described pinch roller (13) has two, and the vertical centre axis of the central axis of two pinch rollers (13) and rope sheave (2) is on same straight line.
7, the hoist working mechanism for nacelle that has two-stage pressure roller mechanism as claimed in claim 1 is characterized in that: rope outlet (1), rope inlet (5), pull bar (17) and spring (16) are distributed in the same side of operating mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200415527U CN201254440Y (en) | 2008-08-05 | 2008-08-05 | Hoister operating mechanism for hanging cradle with two stage pinch wheel mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200415527U CN201254440Y (en) | 2008-08-05 | 2008-08-05 | Hoister operating mechanism for hanging cradle with two stage pinch wheel mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201254440Y true CN201254440Y (en) | 2009-06-10 |
Family
ID=40737758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200415527U Expired - Lifetime CN201254440Y (en) | 2008-08-05 | 2008-08-05 | Hoister operating mechanism for hanging cradle with two stage pinch wheel mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201254440Y (en) |
-
2008
- 2008-08-05 CN CNU2008200415527U patent/CN201254440Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090610 Effective date of abandoning: 20080805 |