CN102141463A

CN102141463A - Slewing mechanism of swing test bench

Info

Publication number: CN102141463A
Application number: CN2010101027249A
Authority: CN
Inventors: 欧阳昕; 刘山尖; 杨咏
Original assignee: 704th Research Institute of CSIC
Current assignee: 704th Research Institute of CSIC
Priority date: 2010-01-29
Filing date: 2010-01-29
Publication date: 2011-08-03

Abstract

The invention relates to a slewing mechanism of a swing bench, which mainly solves the technical problems on realization of heavy load, high precision and the like. In the technical scheme mainly adopted by the invention, the slewing mechanism is arranged on a base, a strut is fixedly arranged on the slewing mechanism, a toothed outer ring of the slewing mechanism is engaged with a pinion of a slewing driving braking machine set which is fixedly arranged on a slewing supporting chassis of the slewing mechanism, the chassis is connected with an inner ring of a slewing bearing of the slewing mechanism, and the toothed outer ring of the slewing bearing is connected with the base. The slewing mechanism of the swing bench is suitable for various kinds of swing test benches with heavy load and high precision.

Description

The Swaying Test Platform slew gear

Technical field:

The present invention relates to a kind of combination metering device of measuring two or more kinematic variableses, particularly a kind of support that is exclusively used in kit.

Background technology:

Swaying Test Platform, in fields such as ship motion, vehicle movement, sporting flying and earthquakes, in order to simulate various spatial movement attitudes, experience development over a long time, progressively develop into the platform mechanism of four-degree-of-freedom, six degree of freedom from two early stage degree of freedom, it mainly is to carry out the dynamic simulative emulation test at the equipment that is under different sea situations, road conditions, empty day state and the seismic condition, is applicable to the test of boats and ships, space flight, vehicle and electronic equipment or product; Existing Swaying Test Platform, what be applied in space flight, aviation field is accurate Swaying Test Platform, its design feature is to adopt motor-driven mechanism or small-sized electric servo control mechanism, its control accuracy can reach higher requirement, but the size of Swaying Test Platform is little, the load that can carry is littler, thereby its scope of application is quite limited; The Swaying Test Platform of the large-scale load of existing another kind of adaptation, be common in boats and ships, industries such as vehicle, its driving mechanism is to adopt hydrostatic transmission, this mechanism is positioned at the contiguous below of work top, Fig. 4 is the structural representation of the type Swaying Test Platform, top of the trellis at pedestal 5 ' is provided with supporting bable tops 51 ', this supporting bable tops 51 ' top is provided with slew gear 2 ', slew gear 2 ' top is connected with work top 6 ', but this work top 6 ' is gone up the subjects 9 of installation testing, the characteristics of above-mentioned existing Swaying Test Platform are, hydraulicdriven slew gear 2 ' load-bearing capacity is strong, thereby can adapt to boats and ships, the heavy load subjects 9 in fields such as vehicle, but the control accuracy of this structure is low, its static immobilization precision is far below the rad level, can't adapt to modernized boats and ships, the performance test of field main equipments such as vehicle, analogue simulation and fail-test, in addition, existing heavy load Swaying Test Platform, its slew gear 2 ', work top 6 ' and subjects 9 are all away from pedestal 5 ', the centre of gravity place that is the three is very high, inclined to one side square and added force of inertia square that its deadweight is produced all can make the bigger mechanical clearances of generation such as slew gear 1 ', thereby reduce the measuring accuracy of Swaying Test Platform, be that Swaying Test Platform is carried out rolling, when pitching or compound rolling test, can't realize high-precision position control, also make the load capacity of subjects 9 will be subjected to bigger restriction thus.

Summary of the invention:

Technical matters to be solved by this invention is, a kind of improved Swaying Test Platform slew gear is provided, its load-bearing capacity height, and the equipment that can satisfy several tons of weights carries out performance test, analogue simulation and fail-test, and has high control accuracy simultaneously.

The technical scheme that the present invention solves the problems of the technologies described above is: the Swaying Test Platform slew gear includes pedestal, work top and pillar, the pedestal top of Swaying Test Platform is provided with pillar, the pillar top is provided with work top, be characterized in: pedestal is provided with slew gear, be installed with the pillar of band work top on this slew gear, the band tooth outer ring of the swing bearing of this slew gear and revolution drive the pinion of braking unit, this revolution drives the braking unit and is installed on the revolution support chassis of slew gear, this revolution support chassis is connected with the inner ring of the swing bearing of slew gear, and the band tooth outer ring of this swing bearing is connected with pedestal.Drive the motor start-up of braking unit when revolution after, the pinion wheel of this unit is given transmission of power and the band tooth outer ring of the slew gear of its engagement, this band tooth outer ring is to be fixed on pedestal, thereby make revolution drive the center rotation of braking unit wraparound rotation mechanism (being swing bearing), and the revolution support chassis that thereupon drives slew gear is rotated, be fixed on the pillar and the also revolution thereupon of work top of revolution support chassis, realize the revolute function of Swaying Test Platform.

The present invention adopts servo electricity driving and slew gear to be arranged on the new construction of contiguous pedestal, can improve the control accuracy of Swaying Test Platform, overcome a conventional hydraulic driving and a high position many disadvantages that slew gear brings is set, the present invention simultaneously structurally also fully guarantees its load-bearing capacity, and the subjects that can adapt to heavy load (as several tons of weights) is carried out performance test, analogue simulation and fail-test.

Description of drawings:

Fig. 1 is a Swaying Test Platform slew gear synoptic diagram of the present invention.

Fig. 2 be among Fig. 1 A to view.

Fig. 3 is the local enlarged diagram that revolution drives braking unit and slew gear among Fig. 2.

Fig. 4 is existing Swaying Test Platform synoptic diagram.

Embodiment:

With reference to Fig. 1,2, Swaying Test Platform includes revolution and drives braking unit 1, slew gear 2, manual locking assembly 3, pedestal 5, work top 6 and pillar 7.

Revolution drives braking unit 1 and includes motor 11, detent 12, reducer casing 13 and pinion wheel 14, motor 11, detent 12, reducer casing 13 can be selected existing product for use, be provided with mounting flange on the output terminal casing of reducer casing 13, this flange can drive revolution all sides appropriate position that braking unit 1 usefulness bolt is connected the revolution support chassis 21 of slew gear 2; On the output terminal shaft extension of reducer casing 13 pinion wheel 14 is installed, this shaft extension can be to drive with pinion wheel 14 and be connected by flat key, spline or other similar structures, and mesh the band tooth outer ring 233 of the swing bearing 23 of this pinion wheel 14 and slew gear 2.Above-mentioned revolution drives arrestment mechanism 1 can adopt driven by servomotor, cooperate reducer casing 13 to drive the band tooth outer ring 233 of pinion wheel 14 transmission slew gears 2, servomotor has braking function, thereby also can realize the rotation and the braking of testing table by the clamping device of control motor.

Slew gear 2 includes revolution support chassis 21, goes up bolt 22, swing bearing 23 and following bolt 24, wherein

Revolution support chassis 21 is discoid body members, can be by the single board-like disk body of different demand systems, also can by upper and lower plate be connected the discoid component that floor forms, there is swing bearing 23 below of this dish with bolt on a group, thereby the rotation center that forms the rotation center of revolution support chassis 21 and swing bearing 23 is concentric; The flange that can connect reducer casing 13 in all sides appropriate position of revolution support chassis 21 with bolt; Above the middle part of revolution support chassis 21 can set firmly, be provided with the pillar 7 of work top 6, thereby guarantee that pillar 7 can be with 21 rotations of revolution support chassis;

Swing bearing 23, it is the existing universal product, include inner ring 231, prismatic roller 232 and band tooth outer ring 233, bolt 22 is fixedlyed connected with revolution support chassis 21 on one group of inner ring 231 usefulness, bolt 24 is fixedlyed connected with pedestal 5 under one group of band tooth outer ring 233 usefulness, this structure forms inner ring 231 and revolution support chassis 21 can be around band tooth outer ring 233 rotations of fixing, the tooth of band tooth outer ring 233 and pinion wheel 14 engagements;

The revolution of swing testing table realizes by the swing bearing 23 that revolution support chassis 21 is installed below, this structure can avoid traditional slew gear to be installed in inclined to one side square and the added force of inertia square of work top 6 lower floors because of the deadweight generation of equipment and testing table work top 6, reduced mechanical clearance, can carry out high-precision position control when Swaying Test Platform is carried out rolling, pitching or compound waving, also can increase the test load of equipment simultaneously.

Manual locking assembly 3; form by eyebolt and wing nut; one end of eyebolt is hinged on the end face of pedestal 5; after eyebolt rotates with pin joint; can embed the peripheral groove place of revolution support chassis 21; and screw wing nut can with the revolution support chassis 21 be fixed on the pedestal 5; cell-phone lock locking assembly 3 can carry out mechanical protection when the revolution driving arrestment mechanism 1 of Swaying Test Platform is not charged; the quantity of manual locking assembly 3 is at least 2, and evenly is laid in the peripheral appropriate position of revolution support chassis 21.

The present invention uses the servo-electric play moving, its load-bearing capacity is still very high, the equipment that can satisfy several tons of weights carries out performance test, analogue simulation and fail-test, the present invention can reach very high control accuracy requirement, the static immobilization precision reaches the rad level, is that existing big load Swaying Test Platform is incomparable.

Claims

1. Swaying Test Platform slew gear, include pedestal, work top and pillar, the pedestal top of Swaying Test Platform is provided with pillar, the pillar top is provided with work top, it is characterized in that: pedestal (5) is provided with slew gear (2), be installed with the pillar (7) of band work top (6) on this slew gear (2), the band tooth outer ring (233) of the swing bearing (23) of this slew gear (2) and revolution drive pinion wheel (14) engagement of braking unit (1), this revolution drives braking unit (1) and is installed on the revolution support chassis (21) of slew gear (2), this revolution support chassis (21) is connected with the inner ring (231) of the swing bearing (23) of slew gear (2), and the band tooth outer ring (233) of this swing bearing (23) is connected with pedestal (5).

2. Swaying Test Platform slew gear according to claim 1, it is characterized in that revolution drives braking unit (1) and includes motor (11), detent (12), reducer casing (13) and pinion wheel (14), motor (11) is coaxially connected with detent (12) and reducer casing (13), and be fixedly connected with the revolution support chassis (21) of slew gear (2) with its mounting flange, drive on the shaft extension of reducer casing (13) and be connected with pinion wheel (14).

3. Swaying Test Platform slew gear according to claim 1 is characterized in that revolution support chassis (21) periphery of described slew gear (2) is provided with one group of manual locking assembly.