CN202213590U

CN202213590U - Supporting turntable

Info

Publication number: CN202213590U
Application number: CN2011202980311U
Authority: CN
Inventors: 朱建国
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-08-17
Filing date: 2011-08-17
Publication date: 2012-05-09
Anticipated expiration: 2021-08-17

Abstract

The utility model relates to a supporting turntable which is characterized in that: a lower turntable is horizontally equipped below the upper turntable; a turntable shaft is provided between the upper turntable and the lower turntable; the turntable shaft vertically penetrates between the upper turntable and the lower turntable; the upper turntable is connected with the lower turntable through the turntable shaft; a ball bearing is provided between the upper turntable and the outer end of the lower turntable; the ball bearing is of a waist-drum shape; the left side and the right side of the ball bearing are provided with a retaining ring A and a retaining ring B; two ends of the lower turntable are respectively provided with an inner protecting ring; two ends of the upper turntable are provided with outer protecting rings; the lower turntable is provided with a positioning ring at a position which is next to the turntable shaft; the upper turntable is connected with the frame; the lower turntable is connected with a bogie; a rotary turntable is provided between the bogie and the frame; the bogie is connected with the frame through the rotary turntable; and the front end of the bogie is provided with a pulling rack. The supporting turntable has the following advantages: high bearing capability, high rigidity, high bearing capacity of a thrust bearing, high impact resistance when the cargo is loaded/unloaded, high flexibility in steering, small weight, high stability and reliable safety.

Description

Supporting turntable

Technical field

The utility model relates to mechanical engineering equipment, and a kind of specifically supporting turntable is applied on 5～200 tons of flat trucks, and degreeof turn is 360 °, and it is all big also can be used in axial bearing capacity and diametral load, on lower other construction machinery and equipment of rotating speed.

Background technology

Turn in the prior art mechanism by just form with upper and lower two block plates and main shaft, at work because planar friction, do not have lubricating point; Corrosion easily between upper and lower two block plates; Friction drag is very big, and flat truck turns to very dumb, can not satisfy user's requirement.The steering box that has is provided with ball between upper and lower two block plates, the shortcoming of this steering box is: the bad oil leab that is provided with.Clamp between upper and lower two block plates, ball damages easily, and stuck phenomenon is arranged.Between upper and lower two block plates gap a little more greatly, ball can be escaped from and, failure frequency is very high, the raceway diameter on upper and lower two block plates is big, requires highly, processing is difficulty relatively, needs bigger Fabricating machinery could accomplish, processing charges cost height.Maintenance difficult, labour intensity is big.

Summary of the invention

The utility model technical matters to be solved is the deficiency that overcomes prior art, and a kind of supporting turntable is provided, and the utility model solves the technical scheme that its technical matters adopted and is: the structure of the utility model comprises top rotary table, lower rotary table, turntable shaft, maintenance circle A, ball, maintenance circle B, nest, interior guard collar, outer guard collar, vehicle frame, revolution rotating disk, bogie truck, drawbar frame; It is characterized in that being horizontally disposed with lower rotary table below the top rotary table, be provided with turntable shaft in the middle of top rotary table and the lower rotary table, turntable shaft is up and down through between top rotary table and the lower rotary table; Top rotary table is connected with lower rotary table through turntable shaft; Be provided with ball between top rotary table and the lower rotary table outer end, ball is the waist drum type, and the left and right sides of ball is provided with and keeps circle A and keep circle B; The two ends of lower rotary table are provided with interior guard collar; The two ends of top rotary table are provided with outer guard collar, and the position near turntable shaft on lower rotary table is provided with nest, and top rotary table connects to ground; Lower rotary table is connected with bogie truck; The revolution rotating disk is arranged between bogie truck and the vehicle frame, and bogie truck connects to ground through the revolution rotating disk, and the bogie truck front end is provided with drawbar frame.

Principle of work: the utility model mainly is made up of parts such as upper and lower rotating disk, turntable shaft, ball, nest, maintenance circle, interior guard collar, outer guard collars.Upper and lower rotating disk is equivalent to the upper and lower raceway circle of thrust baring, and top rotary table is connected with the flat truck vehicle frame, and the lower rotary table plate is connected with bogie truck.Turntable shaft not only plays the interconnect function of upper and lower disk plate, but also is the vital parts that bears tractive force, and it mainly is a bearing radial force, and its diameter depends on the load carrying ability of flat truck and determines tractive force.Ball, maintenance circle and nest play retainer in supporting turntable, stressed very little, and its radical function is the size of decision supporting turntable raceway diameter, generally are the raceway diameters according to the width design supporting turntable of flat truck.Ball is the waist drum type, and the little advantage of the existing ball bearing of main shaft friction force of this shape has the big advantage of ball bearing of main shaft bearing capacity again, and what of ball quantity are depended on the load carrying ability of flat truck, and general desirable 6～24, in addition more.The function of inside and outside guard collar at first mainly has been a dustproof effect, secondly has been the effect of oil tray, and the grease that joins is not outflowed.The steering hardware of flat truck has adopted the design of supporting turntable, and the off working state degreeof turn is 360 °, and the degreeof turn of mode of operation is 180 °, therefore selects for use the supporting turntable turning rate to select for use straight and horizontal adjusting rod to turn to, and the turn radius of flat truck is much smaller.Supporting turntable can bear bigger axial and united load simultaneously, and its compactness rational in infrastructure has very high load capacity and rigidity, and it is low to have overcome the thrust baring load-carrying capacity, can not bear radial weight, can only bear the shortcoming of the axial load of a direction.The raceway diameter of supporting turntable is big, in the design of flat truck, generally gets φ 400mm～φ 1000mm, even can be bigger, as selects for use the thrust baring of same raceway diameter to involve great expense, and cost is very high.Supporting turntable is owing to adopt ball many in design, and intensity is big, and the raceway diameter is big, so flat truck is shock-resistant when handling goods, has to turn to flexibly, light characteristics such as steady, safe and reliable.The beneficial effect of the utility model is that the utility model compactness rational in infrastructure has very high load capacity and rigidity; The thrust baring load-carrying capacity is high, and the raceway diameter of supporting turntable is big, and is shock-resistant when handling goods; Have and turn to flexibly, light characteristics such as steady, safe and reliable, and also part processing is convenient; Cost is low, and failure frequency is very low, firm and durable.

Description of drawings

Fig. 1: the utility model embodiment cross-sectional view;

Fig. 2: the utility model embodiment side-looking structural representation that connects to ground;

Fig. 3: the utility model embodiment plan structure scheme drawing that connects to ground;

Among the figure: top rotary table 1, lower rotary table 2, turntable shaft 3, maintenance circle A4, ball 5, maintenance circle B6, nest 7, interior guard collar 8, outer guard collar 9, vehicle frame 10, revolution rotating disk 11, bogie truck 12, drawbar frame 13.

The specific embodiment

Concrete detailed description below with reference to description of drawings the utility model being done; Shown in accompanying drawing, the structure of the utility model comprises top rotary table 1, lower rotary table 2, turntable shaft 3, keeps circle A4, ball 5, maintenance to enclose B6, nest 7, interior guard collar 8, outer guard collar 9, vehicle frame 10, revolution rotating disk 11, bogie truck 12, drawbar frame 13, it is characterized in that being horizontally disposed with lower rotary table 2 below the top rotary table 1; Top rotary table 1 and the lower rotary table 2 middle turntable shafts 3 that are provided with; Through between top rotary table 1 and the lower rotary table 2, top rotary table 1 is connected with lower rotary table 2 through turntable shaft 3 turntable shaft, is provided with ball 5 between top rotary table 1 and lower rotary table 2 outer ends about in the of 3; Ball 5 is the waist drum type; The left and right sides of ball 5 is provided with and keeps circle A4 and keep circle B6, and the two ends of lower rotary table 2 are provided with interior guard collar 8, and the two ends of top rotary table 1 are provided with outer guard collar 9; Position near turntable shaft 3 on lower rotary table 2 is provided with nest 7; Top rotary table 1 is connected with vehicle frame 10, and lower rotary table 2 is connected with bogie truck 12, and revolution rotating disk 11 is arranged between bogie truck 12 and the vehicle frame 10; Bogie truck 12 is connected with vehicle frame 10 through revolution rotating disk 11, and bogie truck 12 front ends are provided with drawbar frame 13.

Embodiment recited above describes the preferred implementation of the utility model; Be not that design and scope to the utility model limits; Under the prerequisite that does not break away from the utility model design concept, common engineering staff make the technical scheme of the utility model in this area various modification and improvement all should fall into the protection domain of the utility model; The technology contents that the utility model is asked for protection all is documented in claims.

Claims

1. supporting turntable; Comprise top rotary table (1), lower rotary table (2), turntable shaft (3), keep circle A (4), ball (5), maintenance to enclose B (6), nest (7), interior guard collar (8), outer guard collar (9), vehicle frame (10), revolution rotating disk (11), bogie truck (12), drawbar frame (13); It is characterized in that being horizontally disposed with lower rotary table (2) below the top rotary table (1), be provided with turntable shaft (3) in the middle of top rotary table (1) and the lower rotary table (2), turntable shaft (3) is up and down through between top rotary table (1) and the lower rotary table (2); Top rotary table (1) is connected with lower rotary table (2) through turntable shaft (3); Be provided with ball (5) between top rotary table (1) and lower rotary table (2) outer end, ball (5) is the waist drum type, and the left and right sides of ball (5) is provided with and keeps circle A (4) and keep circle B (6); The two ends of lower rotary table (2) are provided with interior guard collar (8); The two ends of top rotary table (1) are provided with outer guard collar (9), and the position of going up near turntable shaft (3) at lower rotary table (2) is provided with nest (7), and top rotary table (1) is connected with vehicle frame (10); Lower rotary table (2) is connected with bogie truck (12); Revolution rotating disk (11) is arranged between bogie truck (12) and the vehicle frame (10), and bogie truck (12) is connected with vehicle frame (10) through revolution rotating disk (11), and bogie truck (12) front end is provided with drawbar frame (13).