CN203612227U

CN203612227U - Three-axis turntable capable of moving in all directions

Info

Publication number: CN203612227U
Application number: CN201320855831.8U
Authority: CN
Inventors: 刘金国; 刘志伟; 张阳; 孙澍锋
Original assignee: Shenyang Institute of Automation of CAS
Current assignee: Shenyang Institute of Automation of CAS
Priority date: 2013-12-20
Filing date: 2013-12-20
Publication date: 2014-05-28
Anticipated expiration: 2023-12-20

Abstract

The utility model relates to a movable test turntable, in particular to a three-axis turntable capable of moving in all directions. The three-axis turntable comprises a turntable body and a moveable platform, wherein the turntable body comprises a rotating rod, a middle ring and an outer ring; the moveable platform comprises a pedestal, a supporting rod and universal wheels; the outer ring is rotationally arranged on the pedestal; a plurality of supporting rods are uniformly arranged around the pedestal; each supporting rod is connected with one universal wheel to realize back and forth translation freedom degree and left and right translation freedom degree in the horizontal direction through the universal wheel; the middle ring is rotationally arranged in the outer ring; as a carrier of a tested target, the rotating rod is rotationally arranged in the middle ring; three rotation freedom degrees are realized through the rotation of the rotating rod relative to the middle ring, the rotation of the middle ring relative to the outer ring, and the rotation of the outer ring relative to the pedestal. According to the three-axis turntable, a driving element is not required, the three-axis turntable is simple in structure and practical, and has five freedom degrees, and the freedom degrees can be selected according to test conditions; the universal wheels on the bottom can also be replaced according to needs, and the turntable is more convenient to use.

Description

Three-axle table that can all-around mobile

Technical field

The utility model relates to mobile test turntable, specifically a kind of three-axle table that can all-around mobile.

Background technology

Along with the progress in epoch, the development of science and technology, is the key of Navigation Guidance Equipment as the three-dimensional turntable of the crucial wayside equipment in Aeronautics and Astronautics research, so the technical study of turntable is subject to the great attention of developed country's aerospace field always.Three-axle table is for aircraft, guided missile, the key equipment of other aircraft such as airship and ground HWIL simulation, it can simulate in real time the reproduction skyborne dynamics of aircraft and aircraft carry out middle rolling, pitching, driftage etc. athletic posture in space in laboratory environment, and turntable technology is widely used in aviation, navigation, national defense construction field.

At present, the turntable that various countries' research is made is all the large-scale control turntable with driver train, and these test tables are that physical construction or Measurement and Control System are all extremely complicated, the making use cost costliness of turntable, complicated operation; And these platforms not can move freely mostly.The compact simplified experimental flying vehicle that this need to move freely on ground for some and some other equipment that needs low cost HWIL simulation, be obviously not suitable for.And move freely on ground for this, low cost, is used, easy to operate aircraft devices experiment simulation test platform is comparatively rare at present.

Utility model content

For the technical matters of above-mentioned existence, the purpose of this utility model is to provide a kind of three-axle table that can all-around mobile.This three-axle table has mobile and five degree of freedom of rotation, is applicable to some aircraft experimental simulation tests.

The purpose of this utility model is achieved through the following technical solutions:

The utility model comprises the turntable and the mobile platform that are rotationally connected each other, its intermediate station comprises bull stick, middle ring and outer shroud, described mobile platform comprises base, pole and cardan wheel, described outer shroud is rotatably installed on base, on this base, edge is circumferentially evenly equipped with multiple poles, each pole is all connected with cardan wheel, realizes two of horizontal direction all arounds translation freedoms by described cardan wheel; Described middle ring is rotatably installed in outer shroud, described bull stick is rotatably installed in middle ring as the carrier of measurand, by described bull stick with respect to middle ring rotate, described middle ring with respect to outer shroud rotate and described outer shroud rotate and realize three rotary freedoms relative to base.

Wherein: between described bull stick and middle ring and between middle ring and outer shroud, be rotationally connected respectively by rotating shaft, described rotating shaft is provided with the axle jump ring that prevents that rotating shaft from coming off; Described bull stick two ends are rotationally connected by rotating shaft and middle ring respectively, and the both sides of described middle ring are rotationally connected by rotating shaft and outer shroud respectively; Line between two rotating shafts between line between two rotating shafts between described bull stick and middle ring and middle ring and outer shroud is vertical and coplanar; Between described outer shroud and rotating shaft, being interference fit, is free-running fit between described middle ring and rotating shaft; Described outer shroud is rotationally connected by lower shaft and base, and one end of described lower shaft is connected in the bottom of outer shroud, and the other end is rotationally connected by angular contact bearing and described base; The bottom of described outer shroud has the through hole of pegging graft for lower shaft one end, and has the tapped bore being connected with lower shaft for realizing in the both sides of described through hole, and one end of described lower shaft is affixed by the bottom of screw and outer shroud; Angular contact bearing between the other end and the base of described lower shaft is two, adopts back-to-back mounting means, and the contact wire intersection point of two angular contact bearings is in bearing outside, and fixes by jump ring; One end of described each pole is connected in respectively the side surface of base by pin, the other end of each pole is fixed in respectively on the contiguous block of cardan wheel; Described cardan wheel can be replaced by buphthalmos wheel.

Advantage of the present utility model and good effect are:

1. the utility model features simple structure, not demand motive mechanism, does not have complicated control system, uses easy to operately, and cost of manufacture is low.

2. the utility model applicability is strong, is applicable to various small aircrafts and measurand; Experimental subjects can be connected with bull stick, also can directly be connected with middle ring by rotating shaft.

3. the utility model can be realized ground omnibearing movement, and Universal wheel at bottom can be locked, also can change as required various types of cardan wheels.

4. the utility model can be realized three rotary freedoms and two one-movement-freedom-degrees adjustings.

5. the turntable in the utility model is connected with rotating shaft by jump ring, easy accessibility.

Accompanying drawing explanation

Fig. 1 is integral structure schematic diagram of the present utility model;

Fig. 2 is that the utility model and quadrotor install view;

Fig. 3 A is the structural representation that the utility model pole is connected with cardan wheel;

Fig. 3 B is that the utility model pole takes turns with buphthalmos the structural representation being connected;

Fig. 4 A is the structural representation that the utility model pole is connected with contiguous block;

Fig. 4 B is A-A cutaway view of Fig. 4 A;

Fig. 5 A is the partial enlarged drawing of rotating shaft place between the utility model outer shroud and middle ring;

Fig. 5 B is the partial enlarged drawing that encircles rotating shaft place between bull stick in the utility model;

Fig. 6 A is the structure cutaway view of the utility model base position;

Fig. 6 B is the partial enlarged drawing at I place in Fig. 6 A;

Fig. 7 is structure principle chart of the present utility model;

Wherein: 1 is bull stick, 2 is middle ring, and 3 is outer shroud, and 4 is axle jump ring, 5 is rotating shaft, and 6 is axle jump ring, and 7 is pole, and 8 is contiguous block, 9 is cardan wheel fix screw, and 10 is cardan wheel, and 11 is pin, and 12 is base, 13 is angular contact bearing, and 14 is hole jump ring, and 15 is lower shaft, 16 is outer shroud fix screw, and 17 is quadrotor, and 18 is quadrotor fix screw, 19 is buphthalmos wheel, and 20 is pole bottom attaching screw, and 21 is axle jump ring.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figure 1, the utility model comprises the turntable and the mobile platform that are rotationally connected each other, and its intermediate station comprises bull stick 1, middle ring 2 and outer shroud 3, and mobile platform comprises base 12, pole 7, contiguous block 8 and cardan wheel 10; Bull stick 1 is as the carrier of measurand, two ends are rotationally connected with in middle ring 2 by rotating shaft 5 respectively, the both sides of middle ring 2 are rotationally connected with in outer shroud 3 by rotating shaft 5 respectively, and the line between two rotating shafts 5 between the line between two rotating shafts 5 between bull stick 1 and middle ring 2 and middle ring 2 and outer shroud 3 is vertical and coplanar.Between outer shroud 3 and rotating shaft 5, being interference fit (flush fit), is free-running fit (easy fit) between middle ring 2 and rotating shaft 5, between middle ring 2 and bull stick 1 cooperation of rotating shaft 5 identical with it, guaranteed like this flexible rotating of turntable part.As shown in Fig. 5 A, Fig. 5 B, it is fixing that the rotating shaft 5 between bull stick 1 and king-rod 2 is provided with axle jump ring 6 clampings, prevents that rotating shaft 5 from coming off, and guarantee the stability of rotation of turntable; It is fixing that rotating shaft 5 between middle ring 2 and outer shroud 3 is provided with

axle jump ring

4,6 clampings, prevents that rotating shaft 5 from coming off, and guarantee the stability of rotation of turntable.

As shown in Fig. 6 A, Fig. 6 B, the bottom of outer shroud 3 has the through hole of pegging graft for lower shaft 15 one end, and has the tapped bore being connected with lower shaft 15 for realizing in the both sides of through hole, and one end of lower shaft 15 is affixed by the bottom of screw and outer shroud 3.Two angular contact bearing 13 support and connection are installed between the other end of lower shaft 15 and base 12, guarantee the steadily rotation flexibly of turntable part; Two angular contact bearings 13 adopt back-to-back mounting means, and the contact wire intersection point of two angular contact bearings 13 under this mounting means is in bearing outside, and good stability, can bear capsizing moment.Two angular contact bearings 13 use jump ring 14 and axle jump ring 21 to fix by hole, and two angular contact bearings 13 have been realized the flexible rotating of lower shaft 15, and have effectively prevented from rocking.

As shown in Fig. 3 A, Fig. 4 A and Fig. 4 B, on the side surface of base 12, along being circumferentially evenly equipped with multiple poles 7, the base 12 of the present embodiment has four sides, and each side connects a pole 7; One end of each pole 7 is fixed on the side surface of base 12 by pin 11 respectively, and the other end of pole 7 is fixed on the contiguous block 8 of cardan wheel 10 by screw.On contiguous block 8, have four tapped bore, realize and being connected of cardan wheel 10 by screw, can fix turntable with the cardan wheel 10 of brake.On contiguous block 8, can connect various types of cardan wheels, as shown in Figure 3 B, cardan wheel 10 can be taken turns 19 replacements by buphthalmos.

As shown in Figure 7, three-axle table of the present utility model has two of horizontal direction all arounds translation freedoms, is rotated and has three rotary freedoms with respect to middle ring 2 by bull stick 1 around Y-axis rotation, middle ring 2 with respect to outer shroud 3 around X-axis rotation and outer shroud 3 relative to base 12 around Z axis.

Principle of work of the present utility model is:

As shown in Figure 2, bull stick 1 can be connected by fixing realization of quadrotor fix screw 18 with quadrotor 17, and quadrotor 17 can rotate freely in turntable.Consider the variety of subjects, bull stick 1 can be taken off, measurand also can directly link together by rotating shaft 5 and middle ring 2.

Claims

One kind can all-around mobile three-axle table, it is characterized in that: comprise the turntable and the mobile platform that are rotationally connected each other, its intermediate station comprises bull stick (1), middle ring (2) and outer shroud (3), described mobile platform comprises base (12), pole (7) and cardan wheel (10), described outer shroud (3) is rotatably installed on base (12), this base (12) is upper along being circumferentially evenly equipped with multiple poles (7), each pole (7) is all connected with cardan wheel (10), realizes two of horizontal direction all arounds translation freedoms by described cardan wheel (10); Described middle ring (2) is rotatably installed in outer shroud (3), described bull stick (1) is rotatably installed in middle ring (2) as the carrier of measurand, is rotated and realizes three rotary freedoms with respect to middle ring (2) rotation, described middle ring (2) by described bull stick (1) with respect to outer shroud (3) rotation and described outer shroud (3) relative to base (12).
2. by three-axle table that can all-around mobile described in claim 1, it is characterized in that: between described bull stick (1) and middle ring (2) and between middle ring (2) and outer shroud (3), be rotationally connected respectively by rotating shaft (5), described rotating shaft (5) is provided with the axle jump ring that prevents that rotating shaft from coming off.
3. by three-axle table that can all-around mobile described in claim 2, it is characterized in that: described bull stick (1) two ends are rotationally connected by rotating shaft (5) and middle ring (2) respectively, the both sides of described middle ring (2) are rotationally connected by rotating shaft (5) and outer shroud (3) respectively; Line between two rotating shafts (5) between line between two rotating shafts (5) between described bull stick (1) and middle ring (2) and middle ring (2) and outer shroud (3) is vertical and coplanar.
4. by three-axle table that can all-around mobile described in claim 2 or 3, it is characterized in that: between described outer shroud (3) and rotating shaft (5), being interference fit, is free-running fit between described middle ring (2) and rotating shaft (5).
5. by three-axle table that can all-around mobile described in claim 1, it is characterized in that: described outer shroud (3) is rotationally connected by lower shaft (15) and base (12), one end of described lower shaft (15) is connected in the bottom of outer shroud (3), and the other end is rotationally connected by angular contact bearing (13) and described base (12).
6. by three-axle table that can all-around mobile described in claim 5, it is characterized in that: the bottom of described outer shroud (3) has the through hole of pegging graft for lower shaft (15) one end, and having the tapped bore being connected with lower shaft (15) for realizing in the both sides of described through hole, one end of described lower shaft (15) is affixed by the bottom of screw and outer shroud (3); Angular contact bearing (13) between the other end of described lower shaft (15) and base (12) is two, adopts back-to-back mounting means, and the contact wire intersection point of two angular contact bearings (13) is in bearing outside, and fixes by jump ring.
7. by three-axle table that can all-around mobile described in claim 1, it is characterized in that: one end of described each pole (7) is connected in respectively the side surface of base (12) by pin (11), the other end of each pole (7) is fixed in respectively on the contiguous block (8) of cardan wheel (10).
8. by three-axle table that can all-around mobile described in claim 7, it is characterized in that: described cardan wheel (10) can be taken turns by buphthalmos (19) and be replaced.