CN202346659U

CN202346659U - Crane turntable

Info

Publication number: CN202346659U
Application number: CN2011204687734U
Authority: CN
Inventors: 王仕良
Original assignee: ZHOUSHAN HAICHUAN MARINE MACHINERY CO Ltd
Current assignee: ZHOUSHAN HAICHUAN MARINE MACHINERY CO Ltd
Priority date: 2011-11-23
Filing date: 2011-11-23
Publication date: 2012-07-25
Anticipated expiration: 2021-11-23

Abstract

The utility model relates to a crane turntable which comprises a chassis (3), a face plate (1), a face plate (2) and a roller assembly, wherein a roller in the roller assembly is a conical roll ball (4); a bus of the conical roll ball on a horizontal plane is superposed with a radial line of the turntable on the same horizontal plane; and an upper surface of the chassis and a lower surface of each face plate are respectively inclined planes parallel to an upper bus and a lower bus on a vertical surface of the conical roll ball. Compared with the prior art, the diameters at different sections of the conical roll ball are matched with the rolling distance difference in the radius of the turntable where the conical roll ball is positioned, so that the dislocated wear phenomenon when the conical roll ball rolls along a circumferential track of the chassis is avoided and better linear contact between the conical roll ball and the upper surface and the lower surface (namely the upper surface of the chassis and the lower surface of the face plate) can be realized. In addition, a bearing force of the conical roll ball has a component force in a horizontal direction and a crane suspension arm and hanging goods thereof on the turntable also have a certain one-way direction. Therefore, the crane turntable has better bearing performance; and in addition, the turntable is small in rotational resistance, is flexible, and has little wear of the roll ball.

Description

Curl ring

Technical field the utility model relates to a kind of curl ring, especially a kind of hoister in large tonnage rotating disk, the hoisting crane technical field of the lifting of genus transportation.

The background technology curl ring is to support the parts that heavy-duty machine rotates relative to pedestal; Its structure mainly comprises the chassis of captiveing joint with pedestal, the face that Lifting device is installed; And place the roller assembly between chassis and the face, face place roller above.Roller in the hoisting crane roller assembly of prior art is mainly cylinder ball or double spherical ball.When the cylinder ball rotates at the supporting face; Though bearing capacity is bigger; But, cylinder ball two ends when rolling when circular orbit rolls along the chassis, need the outer end bigger rolling distance to be arranged than the inner because of having isometric rolling distance; Therefore, the ball relative orbit taking place easily slides and roller assembly is damaged.Also can make the wearing and tearing of cylinder ball two, produce bigger steering resistance, cause the rotating disk revolution dumb, shorten service life.And substitute the cylinder ball with the double-bank spherical ball; It has just overcome the wear phenomenon that cylinder ball rolling distance differs, and rolling resistance is little, but spherical ball is a contact; Double spherical ball then has only 2 lower planes in contact; Therefore bearing capacity reduces, or the ball rate of wear can aggravate, and is inappropriate on the large-tonnage hoisting crane and uses.

The innovation and creation content is to above-mentioned deficiency, and the utility model is exactly the curl ring that will propose the hoister in large tonnage that a kind of load-carrying capacity is high, wearing and tearing are little, steering resistance is little.

The curl ring of the utility model; Include chassis, face and roller assembly; Roller in the said roller assembly is the taper ball; Its horizontal surface Up Highway UHW overlaps with radial line on the same horizontal surface of rotating disk, chassis upper surface and face lower surface be respectively with taper ball vertical guide on two inclined-planes that bus is parallel up and down.

Compared with prior art; The rolling distance difference adapts on the diameter at the different cross section place of taper ball and its place rotating disk radius; Make its wear phenomenon that when the circular orbit along the chassis rolls, can not misplace, can make the taper ball have better linearity to contact with top and bottom (being chassis upper surface and face lower surface).Also have, the component that also has horizontal direction because of taper ball bearing capacity, and the crane arm on the rotating disk and hang thing also be have certain unidirectional; Therefore, the utlity model has better load-carrying properties, and the rotating disk steering resistance is little; Flexibly, the ball wearing and tearing are atomic.

The curl ring of the utility model; Microcephaly's one end of said taper ball is provided with spacing convex shoulder; It is the section that microcephaly's one end of taper ball has enlarged-diameter; Said chassis, face respectively have the side that offsets with the outside end face of convex shoulder, with the radial position on the relative chassis of restriction face, guarantee both right alignmenies; The outside end face of said convex shoulder is that radius is the sphere of turntable shaft to distance between the side, chassis, to improve the contact relation between ball and chassis, face.

The curl ring of the utility model, inboard, said chassis is shaped on sun gear; Sometimes splice the gear ring that one section same size is arranged on the sun gear lower surface, to reduce the material and the treating cost of the required consumption of processing equal height sun gear.

The curl ring of the utility model, roller assembly have a retainer, and said retainer has inner ring and outer ring, and the taper ball is put between Internal and external cycle, and taper ball center is provided with through hole, and an anchor shaft passes the centre hole of taper ball and captives joint with Internal and external cycle.

The curl ring of the utility model, said taper ball through bearing installation on anchor shaft.

The curl ring of the utility model has bolted connection between inside and outside circle between per two balls, outside bolt, also has limit casing.

Description of drawings Fig. 1 is the structural representation of a kind of curl ring of the utility model, and Fig. 2 is the enlarged drawing in I zone among Fig. 1, Fig. 3 be among Fig. 2 A-A to cutaway view, among the figure: 1, the flat board of face is turn-taked; 2, the swash plate of face is turn-taked, and 3, the chassis, 4, the taper ball, 5, inner ring; 6, outer ring, 7, bolt, 8, sleeve pipe, 9, nut; 10, anchor shaft, 11, seal ring, 12, bearing, 13, fluted disc.

Do further description in the face of the utility model under the specific embodiment.

1, like Fig. 1,2, shown in 3; Taper ball 4 places between inner ring 5 and the outer ring 6; The small end of taper ball is the inside circumference that places the chassis, and big end places the periphery on chassis, and the horizontal bus of taper ball overlaps with the radial line of its same horizontal surface of chassis; Parallel interval between Internal and external cycle distance is 8 spacing by sleeve pipe, in to wear bolt 7 fixing; Anchor shaft 10 passes the centre hole of taper ball, its two ends are separately fixed on inner ring 5 and the outer ring 6, promptly Internal and external cycle, sleeve pipe, bolt of rear end plate and anchor shaft etc. formed one can free rotating globality roller cage; The taper ball and upper surface linearity chassis 3 that is connected in the retainer is joined; The convex shoulder of taper ball small end is trapped in the groove circle on chassis; Inside side, the face inboard of the outside end face of this convex shoulder and chassis groove circle is that smooth sphere joins, to reduce to turn round friction drag; Turn-take 2 lower surface linearity of the swash plate that is connected taper ball and face in the retainer is joined, and swash plate is turn-taked and also is fixed with flat board above 2 and turn-takes 1, and swash plate is turn-taked and dull and stereotyped turn-taking constitutes the face in the rotating disk; Each flexibly connects taper ball two ends through plain bearing 12 and anchor shaft 10, between the anchor shaft within the bearing and the taper ball centre hole seal ring 11 is installed also, and with the fixing axial location of collar, to prevent an oil leak of inner core injection; There is injection device of lubricating oil to be arranged on the two ends of anchor shaft; The inboard on chassis 3 is shaped on sun gear, sun gear 13 below the chassis again splicing to have one section gear ring that the same size gear arranged to do the butt joint of cylinder tooth fixing, to prolong the cylinder height of sun gear.There is a satellite gear to cooperate on the face on the crane mainframe, turns the circular orbit that satellite gear can make hoisting crane on the taper ball, be provided with along the chassis and freely turn round with sun gear.

Claims

1. curl ring; Include chassis, face and roller assembly; It is characterized in that the roller in the said roller assembly is the taper ball; Its horizontal surface Up Highway UHW overlaps with radial line on the same horizontal surface of rotating disk, chassis upper surface and face lower surface be respectively with taper ball vertical guide on two inclined-planes that bus is parallel up and down.

2. curl ring as claimed in claim 1 is characterized in that microcephaly's one end of said taper ball is provided with spacing convex shoulder, and promptly microcephaly's one end of taper ball has the section of enlarged-diameter, and said chassis, face respectively have the side that offsets with the outside end face of convex shoulder.

3. curl ring as claimed in claim 2 is characterized in that the outside end face of said convex shoulder is that radius is the sphere of turntable shaft to distance between the side, chassis.

4. like claim 1 or 2 or 3 described curl rings, it is characterized in that inboard, said chassis is shaped on sun gear.

5. curl ring as claimed in claim 4 is characterized in that splicing on the said sun gear lower surface gear ring that one section same size is arranged.

6. like claim 1 or 2 or 3 described curl rings; It is characterized in that said roller assembly has a retainer; Said retainer has inner ring and outer ring; The taper ball is put between Internal and external cycle, and taper ball center is provided with through hole, and an anchor shaft passes the centre hole of taper ball and captives joint with Internal and external cycle.

7. curl ring as claimed in claim 6, it is characterized in that said taper ball through bearing installation on anchor shaft.

8. curl ring as claimed in claim 7 is characterized in that bolted connection being arranged between inside and outside circle between per two balls, outside bolt, also has limit casing.