CN101229900B - Circular orbit runner pair of polar crane - Google Patents
Circular orbit runner pair of polar crane Download PDFInfo
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- CN101229900B CN101229900B CN200710073115A CN200710073115A CN101229900B CN 101229900 B CN101229900 B CN 101229900B CN 200710073115 A CN200710073115 A CN 200710073115A CN 200710073115 A CN200710073115 A CN 200710073115A CN 101229900 B CN101229900 B CN 101229900B
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- circular orbit
- rotary wheel
- ring rail
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Abstract
The invention relates to a ring rail rotary wheel set of a ring crane, which consists of a ring rail and a conical rotary wheel which is driven to autorotate by a motor and a reducer and thereby rolling on the ring rail. The ring rail rotary wheel set of the ring crane provided by the invention enables the rotary wheel to rotate around a central axis of the ring rail through the rotary wheel rolling on a plane of the ring rail to realize pure rolling. The invention overcomes the defects that an inner side of a cylindrical rotary wheel of the traditional ring rail rotary wheel set has a high linear speed but an external side has a low linear speed with friction slip, improves motion and dynamic characteristics of the rotary wheel set and avoids unreasonable fatigue wear and additional vibration of the rotary wheel set, which causes the rotary wheel set to move steadily and prolongs the service life of the ring rail rotary wheel set.
Description
Technical field
The present invention relates to a kind of crane handling equipment, particularly a kind of circular orbit runner pair of factory building ring crane.
Background technology
With the nuclear reactor factory building is example, and ring crane is one of main handling facilities of nuclear power plant's nuclear reactor, and it comprises circular orbit and runner, and runner is the cylinder with certain width, and circular orbit is arranged to circumference with the rail with certain width and forms.Roll on circular orbit by runner, realize transporting operation.
A kind of circular orbit with world-class ring crane and runner thereof of introduction, through behind nuclear station factory building place in operation soon, the contriver finds that obscission appears in circular orbit and runner top layer metal thereof very soon that introduce, illustrates that there are problems such as improper fatigue damage and vibration in circular orbit and runner thereof.The contriver finds that through after former circular orbit and the research of runner relative motion relation there is design defect in it.
Fig. 1 is circular orbit and the structure of runner pair and the scheme drawing of relative position of explanation prior art, and circular orbit shown in Figure 1 and runner have following relative motion relation:
Runner is driven by motor and retarder, around the horizontal shaft rotation of self, makes arc track simultaneously along the plane of circular orbit and rolls; The midsection of runner with radius around the circular orbit center steering.
See that intuitively cylindrical runner is at the horizontal shaft time rotational around self, the linear velocity of the interior outside each point on its periphery numerically is identical.On the other hand, runner is when circular orbit rolls, because the influence of the wide factor of wheel of runner, raceway surface and runner be contacted, and to take turns the radius of turn at the wide relative circular orbit of each point center, the interior outside different, thereby make inside and outside the circular orbit the relative linear speed of side joint contact inequality.So as if the midsection with runner is benchmark, on the contact wire of circular orbit and runner,, just can find to exist following two kinds of situations through behind the velocity resultant:
The first, at the medial segment of runner, its synthetic thread speed or title residue linear velocity are the zero maximum that is to the inside edge from mid point, distribution triangular in shape, and direction is opposite with rotating direction;
The second, at the segmentum laterale of runner, its synthetic thread speed or title residue linear velocity are the zero maximum that is to the inside edge from mid point, distribution also triangular in shape, and direction is identical with rotating direction.
Below either way can between circular orbit and runner, produce additional friction and wear.That is to say that design-calculated " pure rolling " relation is not satisfied in the relative motion of original circular orbit of prior art and runner.Here so-called " pure rolling " is meant when runner is done rolling on circular orbit, do not have slide relative between runner and the circular orbit.Its kinematic meaning is exactly on the contact wire of circular orbit and runner, and the synthetic thread speed of each point is zero on the runner.
Under load carrying situation, its additional friction and wear will become more fierce, and the mechanical vibration aggravation makes the loading condiction of circular orbit and runner and moving condition worsen more.Cause the heel and toe wear and the endurance failure of circular orbit and runner thus, so that occurred circular orbit and the unusual peeling phenomenon of runner top layer metallo-in a large number.
To sum up analyze, there is following design defect in the circular orbit runner pair that we can obtain prior art: cylindrical runner is done the rolling of arc trajectory on the circular orbit plane, because it is not " pure rolling ", add rolling but slide, therefore cause track and wheel surface serious wearing and tearing and spalling fatigue problem to occur.
Summary of the invention
The present invention is intended to overcome above-mentioned defective; a kind of circular orbit runner pair of new-type ring crane is provided; its design meets " pure rolling " principle and principle of design; improper fatigue wear problem can not appear in circular orbit of the present invention and runner; can make the relative motion normalisation of circular orbit and runner, make its motion and tractive performance obtain greatly to improve.
The technical solution adopted for the present invention to solve the technical problems is: the circular orbit runner pair of constructing a kind of ring crane, comprise circular orbit, thereby and drive the runner that rotation is rolled on described circular orbit by motor and retarder, wherein, described runner is a bevel wheel, and its axis is vertical or crossing with the central axis of described circular orbit;
In the circular orbit runner pair of ring crane of the present invention, when described circular orbit was in first end position, its surface was a level, the axis tilt of described runner, and its inclination angle size is identical with the semi-cone angle of described bevel wheel;
In the circular orbit runner pair of ring crane of the present invention, when described circular orbit was in second end position, its surface was male-tapered, the axis horizontal of described runner;
In the circular orbit runner pair of ring crane of the present invention, described circular orbit is between first end position and second end position, and described runner matches with described circular orbit.
In the circular orbit runner pair of ring crane of the present invention, the quantity of described runner is a plurality of, and its runner axis meets on the same point of circular orbit axis.
Implement the circular orbit runner pair of ring crane of the present invention, have following beneficial effect: the present invention calculates this parameter to the space behavior body by the principle of design of no slide relative between endless track and the runner, by at least one is relative rolling between endless track and the runner of space cone, realized the pure rolling formula relative motion between endless track and the runner, the improper fatigue wear that has solved the endless track of original introduction and runner causes occurring in a large number the problem of circular orbit and unusual spalling fatigue of runner top layer metallo-and damage, environmental pollution is little, social benefit and remarkable in economical benefits.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples, in the accompanying drawing:
Fig. 1 is the radial cross-section of the circular orbit runner pair of prior art;
Fig. 2 is the birds-eye view of the embodiment of circular orbit runner pair of the present invention;
Fig. 3 is the radial cross-section of the embodiment of circular orbit runner pair of the present invention;
Fig. 4 is the radial cross-section of another embodiment of circular orbit runner pair of the present invention.
The specific embodiment
Below, be example with the circular orbit and the runner of the ring crane of nuclear power plant's nuclear reactor factory building, the accompanying drawings specific embodiments of the invention.
As shown in Figures 2 and 3, the face width of endless track 1 is 340mm, it is the cone of 894.15mm, high 230mm that runner 2 adopts end diameter, runner is driven by motor and retarder, around the axle rotation of self, do simultaneously the rolling of arc track along circular orbit 1, the inner side end of runner 2 with the radius of r=17585mm around endless track 1 center steering.
The rolling surface of described runner 2 is the circular cone conical surface, and runner 2 outside end face circular diameter D should be greater than its inner side end circular diameter d,
Its construction parameter meets following formula:
d/r＝D/(r+H)
Wherein: d-runner 2 inner side end diameter, i.e. end diameters;
D-runner 2 outside end face diameter, i.e. outside diameters;
The track radius of a circle that r-runner 2 inner side ends cross section circles to the distance in circular orbit 1 axle center or the runner 2 roll on circular orbit 1;
Distance between H-runner inner side end and the outside end face.
Obtain having in the formula related parameter to be according to known conditions: runner 2 inner side end diameter d are 894.15mm; Distance H between runner 2 inner side ends and the outside end face is got 230mm, and runner 2 inner side ends are 17585mm to circular orbit 1 axle center apart from r.
To try to achieve runner 2 outside diameter D in the above-mentioned formula of known parameters substitution:
D＝d*(r+H)/r
＝894.15×(17585+230)/17585＝905.84mm。
Thus, the circular orbit runner pair of ring crane of the present invention by the relative motion of the conical surface on the runner 2 and circular orbit 1, is realized transporting operation with what the mode of pure rolling was finished.
Above instrument is the one group of construction parameter that meets " pure rolling " principle of design, and when actual design, the instruction that can provide according to the present invention after requiring to set r, H, d according to place, space, load, speed etc., is obtained D with formula.
Rolling surface at circular orbit 1 is under the situation on plane, and the axis of runner 2 meets at the center of circle on the rolling plane of circular orbit, and promptly the axle of runner is not in horizontality, and this is first end position of circular orbit 1.If change this state, then need the rolling surface of circular orbit is made trochoidal surface according to the designing requirement needs.
Fig. 4 is another specific embodiment of the circular orbit runner pair of ring crane of the present invention, and described runner has conical rolling surface, and described circular orbit also has conical rolling surface.
As shown in Figure 4, for the sake of clarity, specify the detailed Geometric figure drawing and the calculation procedure of the holonmic space truncated cone geometric profile method of calculating of the endless track that the contriver adopts below:
Fig. 4 draws the vertical curve AB of runner diameter 900mm in proportion, and O is a mid point; Draw the radius horizontal linear OP of endless track R=17700mm; Draw straight line PA from the center P of endless track 1 then, PB promptly gets a space cone; Make vertical curve from straight line AB both sides respectively apart from the 115mm place, get truncated cone CDFE, be the geometric profile of runner cone; Intercept 170mm respectively along DF alignment both sides, get GH 2 points, be the theoretical profile of endless track 1; Then, be the center of circle with P, justify respectively with PG, PH, can get the holonmic space truncated cone GJKH of endless track.Among Fig. 4, PJ is the symmetric line of PG.
According to the above-mentioned geometric figure of painting, calculate the semi-cone angle a of runner cone and the parameters such as semi-cone angle b of endless track cone through simple trigonometric function formula:
Tg a＝CD/2*(17700+115)
＝EF/2*(17700-115)
＝900/2*17700
Can get through calculating:
The outside diameter of runner cone is: CD=905.847mm
The end diameter of runner cone is: EF=894.153mm
The semi-cone angle a=1 degree 4564 of runner cone
The semi-cone angle b=88 degree 5436 of endless track cone
After calculating the parameters such as semi-cone angle b of the semi-cone angle a of runner cone and endless track cone, we calculate this parameter to the space cone by the actual size of endless track 1 and runner 2.That is: this basic design formula to the space circle cone is: Tg a=D/2H
Wherein, a is the semi-cone angle of scroll wheel cone, also is the export-oriented leaning angle of ring rail; The semi-cone angle of ring rail cone is 90 °-a, and when roller axis PO was 0 ° with the horizon angle, ring rail cone semi-cone angle was a, and when encircling rail orbital plane and horizon angle and be 0 °, roller axis and horizon angle are a.
In this embodiment, circular orbit is in second end position, this moment runner 2 axis horizontal, circular orbit 1 has cylindrical-conical rolling surface, the semi-cone angle of its semi-cone angle and runner 2 is surplus mutually.Circular orbit 1 also can be between above-mentioned first end position and second end position, and correspondingly, runner 2 matches with circular orbit 1, and the position changes with it.
Can determine the quantity of runner 2 as required, though individual but how much quantity of runner 2 is, always the axis of runner meets on the same point of circular orbit axis.
Thus, described runner with conical rolling surface, the center shaft and the runner center shaft of the space cone that its conical rolling surface constituted are coaxial, described circular orbit with conical rolling surface, its annular is a circumferential, the center shaft of the space cone that its conical rolling surface constituted and the center shaft of annular circumferential are coaxial, and the space cone that the described runner conical surface is constituted must be total to the summit with the space cone that the described circular orbit conical surface is constituted.By the rolling of conical rolling surface on the conical rolling surface of circular orbit of runner, the runner work is rolled around the camber line of the center shaft rotation of circular orbit, realize " pure rolling ".
Claims (2)
1. the circular orbit runner pair of a ring crane, comprise circular orbit, thereby and drive the runner that rotation is rolled by motor and retarder on described circular orbit, described runner is a bevel wheel, its axis is vertical or crossing with the central axis of described circular orbit; It is characterized in that,
When described circular orbit was in first end position, its surface was a level, the axis tilt of described runner, and its inclination angle size is identical with the semi-cone angle of described bevel wheel;
When described circular orbit was in second end position, its surface was male-tapered, the axis horizontal of described runner;
Described circular orbit is between first end position and second end position, and described runner matches with described circular orbit.
2. the circular orbit runner pair of ring crane according to claim 1 is characterized in that, the quantity of described runner is a plurality of, and its runner axis meets on the same point of circular orbit axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710073115A CN101229900B (en) | 2007-01-26 | 2007-01-26 | Circular orbit runner pair of polar crane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710073115A CN101229900B (en) | 2007-01-26 | 2007-01-26 | Circular orbit runner pair of polar crane |
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| Publication Number | Publication Date |
|---|---|
| CN101229900A CN101229900A (en) | 2008-07-30 |
| CN101229900B true CN101229900B (en) | 2010-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710073115A Active CN101229900B (en) | 2007-01-26 | 2007-01-26 | Circular orbit runner pair of polar crane |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101901029B1 (en) * | 2016-11-29 | 2018-09-21 | 세메스 주식회사 | Overhead Hoist transport device |
| CN112158725A (en) * | 2020-10-12 | 2021-01-01 | 宁波盈瑞聚合科技有限公司 | Automatic driving PLC control system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2320890B1 (en) * | 1975-08-12 | 1978-12-22 | Voyer Sa | |
| CN2104854U (en) * | 1991-08-14 | 1992-05-20 | 首都钢铁公司 | Annular bridge type hoist for blast furnace |
| CN101209799A (en) * | 2006-12-28 | 2008-07-02 | 上海起重运输机械厂有限公司 | Ring shaped crane swiveling mechanism and vertical wheel used for the same |
-
2007
- 2007-01-26 CN CN200710073115A patent/CN101229900B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2320890B1 (en) * | 1975-08-12 | 1978-12-22 | Voyer Sa | |
| CN2104854U (en) * | 1991-08-14 | 1992-05-20 | 首都钢铁公司 | Annular bridge type hoist for blast furnace |
| CN101209799A (en) * | 2006-12-28 | 2008-07-02 | 上海起重运输机械厂有限公司 | Ring shaped crane swiveling mechanism and vertical wheel used for the same |
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| Publication number | Publication date |
|---|---|
| CN101229900A (en) | 2008-07-30 |
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