CN211099989U

CN211099989U - Sub-sieve tray on automatic sorting mechanism for bearing steel balls

Info

Publication number: CN211099989U
Application number: CN201922101751.3U
Authority: CN
Inventors: 李干明; 李奥
Original assignee: Hubei University of Science and Technology
Current assignee: Hubei University of Science and Technology
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-07-28
Anticipated expiration: 2029-11-28

Abstract

The utility model provides a divide sieve tray on automatic classification mechanism of bearing steel ball belongs to mechanical technical field. The screening plate comprises a plate body with an edge retainer ring, the upper surface of the plate body is a conical surface, the upper surface of the plate body is provided with a spiral diversion trench, and a plurality of leakage holes with the same aperture are arranged at the bottom of the diversion trench at equal intervals. The utility model has the advantages of can prolong the selection of steel ball and strain the route etc.

Description

Sub-sieve tray on automatic sorting mechanism for bearing steel balls

Technical Field

The utility model belongs to the technical field of machinery, a divide sieve tray on automatic classification mechanism of bearing steel ball is related to.

Background

The steel ball bearing realizes the separation of inner and outer circles through the steel ball of injecing in the spacing, and the steel ball of different sizes is difficult to accurate separation after mixing.

Chinese patent No. CN201611212652.7 discloses a steel ball classification method, which uses a steel ball cleaning and screening machine, wherein the steel ball cleaning and screening machine comprises a cleaning unit and a screening unit, and uses the magnetic principle, and cooperates with the processes of stirring, etc. to realize the classification of steel balls.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a branch sieve tray on the automatic classification mechanism of bearing steel ball to the above-mentioned problem that prior art exists, the utility model aims to solve the technical problem how to prolong the filtration route of steel ball.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a divide sieve tray on automatic classification mechanism of bearing steel ball which characterized in that, divide the sieve tray including the disk body that has the marginal part retaining ring, the upper surface of disk body is the conical surface, the upper surface of disk body has spiral helicine guiding gutter, the equidistant small opening that is provided with a plurality of apertures in the bottom of guiding gutter.

The path of the steel balls in the process of moving in the diversion trench is long, and the spiral diversion trench can limit the rolling speed of the steel balls, so that the steel balls suitable for the leakage holes cannot miss the leakage holes due to the fact that the rolling speed is too high or inertia force acts, the steel balls missing the leakage holes can cause blockage of outlets of the diversion trench, and even if the aperture of the outlets is larger than that of the leakage holes corresponding to the sieving plates, the steel balls missing the leakage holes can also cause inaccurate classification.

Through the mode, the mutual impact strength among the steel balls is very weak, if the input quantity is controlled, the mutual impact of the steel balls in the slow moving process can be ensured to be positioned within the sum of the diameters of the steel balls, and the rolling speed is reduced under the centrifugal force action of the steel balls in the rolling process, so that the steel balls are well protected.

In the screening disc on the automatic sorting mechanism for bearing steel balls, the cross section of the diversion trench is arc-shaped.

In the screening disc on the automatic sorting mechanism for the bearing steel balls, the taper of the upper surface of the disc body is 20: 1-10: 1.

The taper of the upper surface of the tray body is determined according to the specification of the steel ball, and for the steel ball with larger diameter, the taper is increased, otherwise, the taper is reduced.

In the screening disc on the automatic sorting mechanism for the bearing steel balls, the screening disc and the material receiving disc are made of plastic materials.

Drawings

Fig. 1 is a schematic structural view of the present sorting mechanism.

Fig. 2 is a schematic plan view of the sieving plate.

In the figure, 1, a base; 2. mounting a column; 3. a screening disc; 4. a take-up pan; 5. a leak hole; 6. a diversion trench; 7. a rim retainer ring.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the classification mechanism comprises a base 1 and a mounting column 2 fixed on the base 1, wherein a plurality of sub-sieve trays 3 and receiving trays 4 are arranged on the mounting column 2 from top to bottom, the sub-sieve trays 3 and the receiving trays 4 are arranged alternately, each sub-sieve tray 3 comprises a tray body with an edge retainer ring 7, the upper surface of the tray body is a conical surface, the upper surface of the tray body is provided with a spiral guide groove 6, the bottom of the guide groove 6 is provided with a plurality of leakage holes 5 at equal intervals, the diameter of the leakage hole 5 on the same sub-sieve tray 3 is the same, and the diameter of the leakage hole 5 on each sub-sieve tray 3 is sequentially increased from top to bottom;

in longitudinally adjacent screening trays 3, the tray body of one screening tray 3 is a conical surface with a convex middle part, the tray body of the other screening tray 3 is a conical surface with a concave middle part, one end of a diversion trench 6 positioned at a high position on the screening tray 3 is called an inlet, and the other end of the diversion trench 6 is called an outlet; except for the top and bottom screening disks 3, the outlet of the screening disk 3 is connected with the inlet of the screening disk 3 positioned below the screening disk 3, the inlet of the screening disk 3 is connected with the outlet of the screening disk 3 positioned above the screening disk 3, the inlet of the top screening disk 3 is a blanking port for steel balls, and the outlet of the bottom screening disk 3 and the discharge holes 5 on the screening disk 3 are aligned with the receiving disk 4 positioned below the bottom screening disk 3; the outlet is a perforation which penetrates through the upper surface and the lower surface of the tray body, and the aperture is larger than that of the corresponding leak hole 5.

The inlet of the screening disc 3 with the top for the steel balls to be classified is placed at a constant speed, the steel balls move along the flow guide groove 6 under the action of the spiral flow guide groove 6, the two ends of the flow guide groove 6 are respectively in a height state by utilizing the conical surface, so that the steel balls smoothly move towards the outlet direction after being weighted, in the moving process of the steel balls, the steel balls suitable for the leakage holes 5 of the screening disc 3 fall into the corresponding material receiving disc 4 through the leakage holes 5, otherwise, the steel balls enter the next screening disc 3, and all the steel balls can be classified through the arrangement of the leakage holes 5 on each screening disc 3.

Because the path of the steel balls in the process of moving in the diversion trench 6 is long, and the spiral diversion trench 6 can limit the rolling speed of the steel balls, the steel balls suitable for the leakage holes 5 cannot miss the leakage holes 5 due to the too high rolling speed or the action of inertia force, the steel balls missing the leakage holes 5 can cause the blockage of the outlet of the diversion trench 6, and even if the aperture of the outlet is larger than that of the leakage holes 5 corresponding to the screening disc 3, the steel balls missing the leakage holes 5 can also cause the inaccurate classification.

The outlet is provided with a connecting pipe which is fixed on the material receiving disc 4 positioned below the connecting pipe, the tail end of the connecting pipe extends to the upper part of the inlet of the next sieving disc 3, the connecting pipe can be arranged to be inclined, the falling speed of the steel ball is reduced, the steel ball does not bounce when entering the inlet of the next sieving disc 3, and the impact strength is relatively small.

The cross section of the diversion trench 6 is arc-shaped. The taper of the upper surface of the tray body is 20: 1-10: 1. The taper of the upper surface of the tray body is determined according to the specification of the steel ball, and for the steel ball with larger diameter, the taper is increased, otherwise, the taper is reduced.

The screening plate 3 and the receiving plate 4 are made of plastic materials. The diameter of the receiving disc 4 is larger than that of the screening disc 3. The edge of the material receiving disc 4 extends out of the partial screening disc 3 so as to take the steel balls, and the observation is also convenient, and a small blanking door is arranged on the material receiving disc 4 of the extending part so as to take the steel balls.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a divide sieve tray on automatic classification mechanism of bearing steel ball, its characterized in that, divide sieve tray (3) including the disk body that has marginal part retaining ring (7), the upper surface of disk body is the conical surface, the upper surface of disk body has spiral helicine guiding gutter (6), the bottom equidistant a plurality of small openings (5) that are provided with of guiding gutter (6).

2. The screening disc on the automatic sorting mechanism for bearing steel balls as claimed in claim 1, wherein the cross section of the diversion trench (6) is arc-shaped.

3. The screening disc on the automatic sorting mechanism for the bearing steel balls as claimed in claim 1 or 2, wherein the conicity of the upper surface of the disc body is 20: 1-10: 1.

4. The screening disc on the automatic sorting mechanism for bearing steel balls according to claim 1 or 2, wherein the screening disc (3) is made of plastic.