CN2272842Y

CN2272842Y - Skew plate leveling mechanism

Info

Publication number: CN2272842Y
Application number: CN 96226861
Authority: CN
Inventors: 张明元; 李月生
Original assignee: Shenyang Fire Truck Factory; NO 601 INST CHINA AERONAUTICS INDUSTRY CORP
Current assignee: Shenyang Fire Truck Factory; NO 601 INST CHINA AERONAUTICS INDUSTRY CORP
Priority date: 1996-07-17
Filing date: 1996-07-17
Publication date: 1998-01-21
Anticipated expiration: 2006-07-17

Abstract

The utility model relates to a skew plate leveling mechanism, which comprises a motor and a reducer. A pivotal bearing outer ring is fixed on the bottom of a pivotal table, the pivotal bearing inner ring matched with the outer ring is provided with an inner gear ring which is engaged with the pinion gear on the shaft of the reducer, the lower end of the inner gear ring is fixedly provided with an inner loop, the inner loop is connected with the middle loose in the rolling manner through a steel ball, the middle loose is fixedly connected with the outer loose on a chassis in the rolling manner through a steel ball. The inner loose and the middle loose are two skew plates, and the lower parts of the middle loose and the inner loose are provided with locks for locking the middle loose and the inner loose. The utility model has the advantages of reasonable structure, high reliability, computer system control of the leveling motion, advanced technology and high precision. The skew plate leveling mechanism is a high-tech product with broad application areas and higher application values.

Description

Skew plate leveling mechanism

The utility model is a kind of levelling gear, and it is a kind of mechanics that is used for the bench board leveling equipment on the mechanical equipments such as fire fighting turnable ladder, wheel crane, excavating machine and power shovel.

The car body top of mechanical equipments such as fire fighting turnable ladder, wheel crane, excavating machine and power shovel is connected bench board by swing bearing, have operating mechanisms such as aerial ladder or arm on the bench board, when road surface, work-yard and horizontal surface at angle the time, when just the road surface tilts, fire extinguishing tanker aerial ladder luffing or crane rise in the working processs such as arm luffing lifting, will produce a bigger additional tilting moment, the comparison danger of working is in this case overturned easily.

The purpose of this utility model provides a kind of inclined disc type levelling gear, this mechanism can make all kinds of Work machines that have revolving table under various tilted road surface situations under computer control, can both be transferred to horizontality to revolving table exactly, create a reasonable and safe service conditions.

The purpose of this utility model is to realize like this; This mechanism is installed on the chassis, under the revolving table, it comprises motor, retarder, revolving table, feature is, is fixed with the swing bearing outer ring below revolving table, and the swing bearing inner ring supporting with the swing bearing outer ring has internally toothed annulus, pinion on it and the reducer shaft, fixed interior ring in the lower surface of internally toothed annulus, interior ring rolls with middle ring by steel ball and is connected, and middle ring is fastened on outer shroud on the chassis by the steel ball rolling; In ring parallel with the track that steel ball between the outer shroud rolls with chassis, interior ring is relative with steel ball roller track between the middle ring middlely to be encircled, the steel ball roller track between the outer shroud becomes an angle of inclination; In the ring upper surface internal steel ball roller track angle that also tilts between ring and the middle ring mutually, and above two angles of inclination are identical, below middle ring and interior ring below be separately installed with the lock of ring and interior ring in the pinning.

Be fixed with the lockhole dish in interior ring lower surface, interior ring lock be installed in the bottom of middle ring inner ring surface; In the lower surface of middle ring the lockhole dish is installed, on vehicle frame, is fixed with middle ring lock.

In ring lock and interior ring lock be hydraulic lock, it comprises a lock body that has into and out of hydraulic fluid port, be equipped with in the lock body piston and with the dead bolt of piston one.

This mechanism is external computerized control system when work, when the road surface tilts, two orthogonal horizon sensors that are installed on the revolving table are just used tilt signals, after (CPU control) measures well azimuth and angle of inclination through computer, the instruction CD-ROM drive motor, ring and middle ring turn to corresponding orientation in driving, first dead by ring lock in the middle ring lock handle, computer continuous drive motor, ring rotates separately in making, and, by interior ring lock interior ring is also pinned all during reveal competence up to two horizon sensors again, rotary table is transferred to horizontality like this, revolving table and on mechanism can start working.

The utility model has the advantages that; It rational in infrastructure, the reliability height, the leveling action can be controlled by computer system, advanced technology, the precision height is the high-tech product that wide application and higher using value are arranged.

Details of the present utility model provides by following examples and accompanying drawing thereof:

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

Fig. 2 is the scheme drawing of hydraulic lock among Fig. 1.

With reference to the accompanying drawings, chassis 11 is original on fire extinguishing tanker, the crane among the figure, has fixed outer shroud 12 on it, and outer shroud 12 is outer shrouds of a rolling bearing type, it encircles 13 in connecting by steel ball, and middle ring 13 is parallel with chassis 11 with the steel ball roller track between the outer shroud 12.In ring 13 inner ring surface by steel ball interior ring 14 has been installed again, the angle of steel ball roller track inclination during interior ring 14 is relative with steel ball roller track between the middle ring 13 between ring 13 and the outer shroud 12.The upper surface of interior ring 14 is fixedly mounted on the internally toothed annulus 6, this upper surface internally encircle mutually 14 and middle ring 13 between the steel ball roller track same angle that also tilts, internally toothed annulus 6 also is the inner ring of swing bearing, has internal tooth, be meshed with the miniature gears 3 that is installed in retarder 2 axle heads, swing bearing 4 be fixed on revolving table 15 below, it is connected with internally toothed annulus 6 by steel ball 5.Fix an interior ring lock porose disc 9 in the lower surface of interior ring 14, a circle lockhole is arranged above it, the inner ring surface bottom of ring 13 when dead bolt stretches out, just in time can be inserted in the hole of lockhole dish during cooresponding interior ring lock 10 was installed in.Ring lock porose disc 8 during the lower surface of middle ring 13 is fixed with, ring lock 7 was fixed on the vehicle frame during its was cooresponding.

The utility model uses HM Hydraulic Motor 1 to drive retarder 2, and HM Hydraulic Motor 1 is the commercially available prod.Used middle ring lock 7 and interior ring lock 10 are hydrostatic drive locks, and the dead bolt 18 that has piston 17 to drive in its lock body 16 respectively has a hydraulic fluid port 19 on the lock body of piston upper and lower.

Claims

1, Skew plate leveling mechanism, it is installed on the chassis, under the revolving table, it comprises motor, retarder, revolving table, it is characterized in that: be fixed with the swing bearing outer ring below revolving table, the swing bearing inner ring supporting with the swing bearing outer ring has internally toothed annulus, pinion on it and the reducer shaft, fixed interior ring in the lower surface of internally toothed annulus, interior ring rolls with middle ring by steel ball and is connected, and middle ring is fastened on outer shroud on the chassis by the steel ball rolling; In ring parallel with the track that steel ball between the outer shroud rolls with chassis, interior ring is relative with steel ball roller track between the middle ring middlely to be encircled, the steel ball roller track between the outer shroud becomes an angle of inclination; In the ring upper surface internal steel ball roller track angle that also tilts between ring and the middle ring mutually, and two bevelled angles are identical, below middle ring and interior ring below the lock of ring and interior ring in the pinning is installed.

2, Skew plate leveling according to claim 1 mechanism is characterized in that: be fixed with the lockhole dish in interior ring lower surface, in the bottom of middle ring inner ring surface interior ring lock be installed; In the lower surface of middle ring the lockhole dish is installed, on vehicle frame, is fixed with middle ring lock.

3, Skew plate leveling according to claim 1 mechanism is characterized in that used middle ring lock and interior ring lock are hydraulic lock, and it comprises a lock body that has into and out of hydraulic fluid port, be equipped with in the lock body piston and with the dead bolt of piston one.