CN2271520Y

CN2271520Y - Antomatic aligning mechanism

Info

Publication number: CN2271520Y
Application number: CN 95219367
Authority: CN
Inventors: 刘金水; 陈世梁; 陈炳辉; 苏精华
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-08-23
Filing date: 1995-08-23
Publication date: 1997-12-31
Anticipated expiration: 2005-08-23

Abstract

The utility model relates to an automatic aligning mechanism. A bearing provided with a roller is connected to the connection position of a plunger piston of an oil cylinder of an oil pressure lifter and a carriage. The utility model has the structure that the utility model is provided with two concentric circular arc automatic aligning rolling structure bodies which use the center line of the plunger piston as a circle centre and have automatic aligning function; the carriage of the oil pressure lifter can automatically recover balance within a horizontal deviation range which is between one and five; in addition, the disadvantage that as a slide guiding device and a guide rail are worn or deformed and the plunger piston forms plastic deformation, an oil seal of the oil cylinder is squeezed to leak oil can not occur.

Description

Automatic aligning mechanism

This is novel to relate to the automatic aligning mechanism of a kind of oil lifter mechanism.

The elevator cage is when lifting, the balance of the front, rear, left and right of its center of gravity reaches to important, inadequate balance as the compartment, single compartment that can make shakes in travelling rising or fall, bear sliding guide and the guide rail that load weighs a side simultaneously and can cause early stage abrasion, promptly stop even, rise, or the compartment frame has adverse consequencess such as diagonal distortion when descending.This adverse consequences especially load-carrying is heavy more, and is fast and height of wagon is high more remarkable more at moving velocity.

Known oil lifter compartment is connected with the oil pressure plunger, as shown in Figure 3, its oil cylinder plunger head is to be that the radius car becomes convex shaped arc with its center, and in the below, supporting plate center of gravity place of compartment keel beam car system one convex shaped arc, both arc radius are identical with the plunger convex shaped arc, and the center of circle coexists on the plunger line of centers.

Existing as shown in Figure 2 the use by wide model is modified, in plunger head (plane) suit one is the automatic aligning assembly lower shaft board in the center of circle with the plunger center, this lower shaft board locks on its plunger top with sleeve pipe together with the lower shaft board is fixing with screw, and the supporting plate of compartment keel beam as shown in Figure 1 supporting plate still, be automatic aligning assembly head bearing plate, but the center car becomes to have the fixing with hole in the circle of cover external diameter of pipe greater than the lower shaft board of a break-through, and the contact surface that constitutes automatic aligning is the cliding friction structure.Above-mentioned elevator oil cylinder plunger and bottom, its compartment be connected the cliding friction structure, when just practicality being installed, all scribble lubricating grease between supporting plate concave arc and plunger convex arc contact surface, initial stage head bearing plate keeps the compartment balance to good its horizontal deflection of the automatic aligning function at plunger center in 5 degree scopes, but time one for a long time or the lifting frequency too much, because of exhausting, lubricating grease fails to add, the friction force of two arc contact surfaces slowly increases and mostly adopts medium-carbon steel because of the material of two friction faces, lose lubricated becoming after grease is done and be direct metal contact cliding friction, when meeting the improper running of lifting frequency excessive or non-central load or overload, produce compartment moment with regard to losing the automatic aligning function, often cause the damage or the fault of following structure.

(1) plunger of high-order journey oil cylinder damages oil cylinder because of the excessive generation of non-central load compartment moment makes plunger form nonvolatil plastic deformation.

(2) because of the automatic aligning function weaken or ineffective, the compartment balance is at once influenced, sliding guide and guide rail and compartment are failed from moving balance adjustment and compensation by the compartment moment that non-central load produced, and cause sliding guide damage or fault to be stuck on the guide rail

(3) loading off-centre, the compartment is crooked to make the oil sealing of oil cylinder be subjected to the extruding of plunger on one side, the gap then takes place and damages oil sealing and produce leakage of oil in the opposing party, and the oil cylinder oil pressure reduces shortcomings such as raising force is not enough.

This later-model purpose is: design the novel automatic aligning structural assembly that a kind of oil lifter oil cylinder plunger is connected with the compartment, make loading in the compartment be eccentric in certain a bit or certain and the balance that compartment moment also can often keep the compartment takes place, the fault that reduces oil hydraulic system takes place.

The following structure of this novel employing realizes above-mentioned purpose, joining place in oil lifter oil cylinder plunger and compartment is connected with the bearing of band roller, concrete structure is: adopt one to have circular hollow automatic self aligning roller bearing lower bearing seat board, it is fixing with sleeve pipe and lower bearing roller to have the lower shaft board on it, one can be nested with the head bearing plate on cylindrical bearing lower bearing seat board roller, this plate has automatic self aligning roller bearing head bearing, and its central part be provided with the lower bearing seat board on roller with hole in the circle of size, and can be with the screw of circular hollow automatic self aligning roller bearing lower bearing seat board locking at the oil cylinder plunger head.

Adopt the oil lifter of said structure, lifting is steady, comfortable, safety; And can not cause that the crooked oil cylinder oil sealing that makes of deflection of plunger is damaged leakage of oil by excessive friction because of producing compartment moment, when compartment moment produced, its head bearing plate restored balance the compartment to the roller on the cylindrical bearing lower bearing seat board rapidly as friction of rolling in horizontal deflection 0-5 ° scope.

Illustrate below in conjunction with embodiment:

Fig. 1. be the generalized section of known initial stage oil lifter oil cylinder plunger and bottom, compartment connected structure.

Fig. 2. be the generalized section of improved existing oil lifter oil cylinder plunger and bottom, compartment connected structure.

Fig. 3. for compartment and plunger are subjected to compartment moment to influence crooked scheme drawing.

Fig. 4. the extruded scheme drawing of oil cylinder oil sealing during for the plunger deflection.

Fig. 5. be a generalized section of the linking automatic aligning structure of bottom, novel oil lifter oil cylinder plunger compartment.

Stopping lift with direct type the 4th buildings four, to be about 15 meters oil lifter be example:

Among Fig. 1,1 is the compartment guide rail, and 2 is sliding guide, and 3 is the compartment, and 4 for supporting the crossbeam in compartment, and 5 is shockproof excellent power offset plate, and 6 is the medium-carbon steel system support plate of crossbeam, and 7 is the plunger of oil cylinder, and 8 is oil sealing, and 9 is plunger,

Among Fig. 2,61 is the head bearing plate, but be central part place car with the support plate 6 at initial stage become to have a circular arc and break-through lower shaft board fixing with hole 61 in the bigger circle of sleeve pipe 64 external diameters ', 62 is the lower shaft board of circular hollow, cover lower shaft board is fixing with sleeve pipe 64, at 7 plunger heads, c is the upper and lower shaft bearing plate center of arc point on the plunger line of centers with screw 63 locking.

Among Fig. 3, w is loading, 3 ' be crooked compartment, 7 ' be the plunger of deflection.

Among Fig. 4,81 for being subjected to the part of plunger extruding, and 82 for producing the part that the gap goes out oil leakage.

614 is automatic self aligning roller bearing head bearing from Fig. 1-Fig. 5, be located at hole 61 in head bearing pallet block 61 circles of automatic aligning structure ' locate, 623 is automatic self aligning roller bearing lower bearing roller, 624 is automatic self aligning roller bearing lower bearing seat board, and become the automatic self aligning roller bearing lower bearing roller seat board body of tool circle hollow with fixing being set-located of lower bearing seat board with sleeve pipe 64, locking at oil cylinder plunger 7 tops with screw 63, c is center of arc's point of head bearing and lower bearing roller two contact surfaces, with the rolling touch of lower bearing and head bearing roller, the friction of rolling of making horizontal deflection 0-5 ° scope makes the compartment lifting often keep the automatic aligning structural assembly of balance.

Claims

1. automatic aligning mechanism, it is characterized in that: the joining place in oil lifter oil cylinder plunger and compartment is connected with the bearing of band roller, concrete structure is: adopt one to have circular hollow automatic self aligning roller bearing lower bearing seat board, it is fixing with sleeve pipe and lower bearing roller to have the lower shaft board on it, one can be nested with the head bearing plate on the roller of cylindrical bearing lower bearing seat board, this plate has automatic self aligning roller bearing head bearing, and its central part be provided with the lower bearing seat board on roller with hole in the circle of size, and can be with the screw of circular hollow automatic self aligning roller bearing lower bearing seat board locking at the oil cylinder plunger head.