Flexible device for reducing foreign matters entering outlet of rotary vibration sieve

Abstract

The utility model discloses a flexible device for reducing foreign matters entering an outlet of a spin vibration sieve, which comprises a frame body, a clamp ring is arranged on the side wall of the frame body, a bracket is arranged on the frame body in a communicated manner, the lower end of the bracket is fixedly connected with a discharge pipe, and the discharge pipe is connected with an annular seat through two limiting devices which are symmetrically arranged. Through the arrangement of the annular seat and the connecting seat, in the discharging process, the bottom of the discharging pipe can be inserted between the air bag and the conveying pipe, under the mutual contact of the side wall of the air bag and the rubber mat, the port of the discharging pipe is protected, external sundries are prevented from entering the equipment, and in the running process of the equipment, the discharging pipe is prevented from being damaged. The connecting seat is fixedly connected with an external collecting device, and the annular seat above shakes under the vibration of the frame body, so that the air bag is extruded, the air bag slightly deforms, the damping effect between the discharging pipe and the connecting seat can be achieved, the connecting stability is improved, and stable conveying of materials is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of screening equipment, in particular to a flexible device for reducing the entry of foreign matter into an outlet of a rotary vibrating screen. Background Art

[0002] The rotary vibrating screen is a high-precision fine powder screening machine with low noise and high efficiency. It only takes 3-5 minutes to quickly change the screen. It has a fully enclosed structure and uses an upright motor as the excitation source. Eccentric weights are installed on the upper and lower ends of the motor to convert the motor's rotational motion into horizontal, vertical and inclined three-dimensional motion, and then transmit this motion to the screen surface, so that the material makes an outward-expanding involute motion on the screen surface. It has the advantages of a long material running trajectory and high screen surface utilization, and is suitable for screening and filtering of materials such as particles, powders, and mucus.

[0003] During the operation of the existing rotary vibrating screen, the discharge pipe is usually directly exposed to the outside. Therefore, during the discharge process, the vibration generated by the rotary vibrating screen frame will be transmitted to the connection between the discharge pipe and the collection device, which is easy to cause the connection to loosen and affect the discharge process. At the same time, foreign impurities can easily enter the equipment, accelerate the wear of equipment parts, and mix into the collected materials, resulting in a decrease in the purity of the materials and a reduction in the screening quality. In view of this, the present application proposes a flexible device to reduce the entry of foreign matter into the outlet of the rotary vibrating screen. Utility Model Content

[0004] The utility model aims to provide a flexible device for reducing foreign matter from entering the outlet of a rotary vibrating screen, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flexible device for reducing foreign matter from entering the outlet of a vibrating screen, comprising a frame, a restraining ring installed on the side wall of the frame, a bracket connected to the frame, a discharge pipe fixedly connected to the lower end of the bracket, the discharge pipe is connected to an annular seat through two symmetrically arranged limit devices, an airbag is provided at the lower end of the annular seat, an air outlet pipe is connected to the top of the airbag, an air inlet pipe is connected to the bottom of the airbag, the bottom of the airbag is connected to a connecting seat through a plurality of circumferentially arranged pads, a conveying pipe is vertically provided at the upper end of the connecting seat, and a rubber pad is fixedly installed at the upper end of the conveying pipe.

[0006] As a further preferred embodiment of the technical solution, the limiting device includes a sleeve and a movable rod, a spring is installed in the sleeve, a limiting rod is slidably penetrated on the sleeve, and a pressure plate is fixedly connected to the top of the movable rod.

[0007] As a further preferred embodiment of the present technical solution, the sleeve is fixedly connected to the side wall of the discharge pipe, one end of the spring is fixedly connected to the inner wall of the sleeve, and the other end of the spring is fixedly connected to the limit rod.

[0008] As a further preferred embodiment of the present technical solution, two grooves are symmetrically provided on the annular seat, and the limiting rod and the movable rod are respectively arranged in the grooves at corresponding positions, and the ends of the limiting rod contacting the movable rod are both arranged on a hemisphere.

[0009] As a further preferred embodiment of the present technical solution, one end of the air outlet pipe away from the airbag extends into the bracket, and a first one-way valve is installed at the port of the air outlet pipe, the air inlet pipe is connected to the connecting seat, and a second one-way valve is installed at the port of the air inlet pipe.

[0010] As a further preferred embodiment of the present technical solution, the first one-way valve limits the discharge of gas from the airbag into the bracket, and the second one-way valve limits the one-way entry of external gas into the airbag.

[0011] As a further preferred embodiment of the present technical solution, the diameter of the conveying pipe is smaller than the diameter of the discharging pipe, and the upper end of the conveying pipe is arranged in the discharging pipe, and the rubber pad is in contact with the inner wall of the discharging pipe.

[0012] The utility model provides a flexible device for reducing the entry of foreign matter into the outlet of the rotary vibrating screen, which has the following features:

[0013] Beneficial effects:

[0014] (1) The utility model provides an annular seat and a connecting seat. During the discharging process, the bottom of the discharging pipe will be inserted between the airbag and the conveying pipe. The side wall of the airbag and the rubber pad will be in contact with each other, thereby protecting the port of the discharging pipe and preventing foreign matter from entering the equipment. During the operation of the equipment, the connecting seat is connected to the external collecting device and remains fixed. The annular seat above is shaken by the vibration of the frame, thereby squeezing the airbag and causing slight deformation of the airbag. This can provide a shock-absorbing effect between the discharging pipe and the connecting seat, thereby improving the stability of the connection and ensuring smooth material transportation.

[0015] (2) The utility model provides a limit rod and a movable rod, and during the installation of the connecting seat, the annular seat is pushed upward to move. Under the elastic force of the spring, one end of the limit rod enters the groove, and the side wall of the limit rod abuts against the inner wall of the groove to limit the annular seat, thereby maintaining a stable connection between the discharge pipe and the annular seat. The pressure plate is pressed downward to drive the bottom of the movable rod to abut against the limit rod, so that the limit rod can be pushed out of the groove, and the annular seat is no longer limited. It can be disassembled more conveniently, which is convenient for subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure enlargement at the center A;

[0018] Figure 3 It is a side sectional structural schematic diagram of the utility model;

[0019] Figure 4 It is a front cross-sectional structural schematic diagram of the utility model;

[0020] Figure 5 for Figure 4 A magnified schematic diagram of the structure at point B in the middle.

[0021] In the figure: 1. frame; 2. clamp ring; 3. bracket; 4. discharge pipe; 5. annular seat; 6. groove; 7. sleeve; 8. spring; 9. limit rod; 10. movable rod; 11. pressure plate; 12. air bag; 13. outlet pipe; 14. inlet pipe; 15. connecting seat; 16. pad; 17. delivery pipe; 18. rubber pad. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] The utility model provides a technical solution: Figure 1 and Figure 5 As shown, in the present embodiment, a flexible device for reducing foreign matter from entering the outlet of a vibrating screen comprises a frame 1, a clamping ring 2 is installed on the side wall of the frame 1, a bracket 3 is connected to the frame 1, and a discharge pipe 4 is fixedly connected to the lower end of the bracket 3. Furthermore, a plurality of frames 1 can be connected together through the clamping ring 2, and by arranging sieves with different apertures on the frame 1, the material can be accurately screened, and the bracket 3 and the discharge pipe 4 can be rotated to different positions to avoid interference during the discharge process.

[0024] The discharge pipe 4 is connected to the annular seat 5 through two symmetrically arranged limit devices. The limit device includes a sleeve 7 and a movable rod 10. A spring 8 is installed in the sleeve 7. A limit rod 9 is slidably penetrated on the sleeve 7. The sleeve 7 is fixedly connected to the side wall of the discharge pipe 4. One end of the spring 8 is fixedly connected to the inner wall of the sleeve 7. The other end of the spring 8 is fixedly connected to the limit rod 9. A pressure plate 11 is fixedly connected to the top of the movable rod 10. It should be noted that under the elastic force of the spring 8, one end of the limit rod 9 will be pushed to resist the inner wall of the groove 6, and the dead weight of the movable rod 10 and the pressure plate 11 will not affect the position of the limit rod 9.

[0025] Two grooves 6 are symmetrically provided on the annular seat 5, and the limit rod 9 and the movable rod 10 are respectively arranged in the grooves 6 at corresponding positions. The ends of the limit rod 9 that contact the movable rod 10 are both arranged on a hemisphere. Further, the pressure plate 11 is pressed downward to drive the movable rod 10 to move, and the limit rod 9 and the hemispheres arranged on the movable rod 10 are abutted against each other, so that the limit rod 9 can be pushed out of the groove 6.

[0026] An airbag 12 is provided at the lower end of the annular seat 5, and an air outlet pipe 13 is connected to the top of the airbag 12, and an air inlet pipe 14 is connected to the bottom of the airbag 12. The air outlet pipe 13 extends into the bracket 3 at one end away from the airbag 12, and a first one-way valve is installed at the port of the air outlet pipe 13. The air inlet pipe 14 is connected through the connecting seat 15, and a second one-way valve is installed at the port of the air inlet pipe 14. The first one-way valve limits the discharge of gas from the airbag 12 into the bracket 3, and the second one-way valve limits the unidirectional entry of external gas into the airbag 12. Furthermore, under the action of the first one-way valve and the second one-way valve, when the airbag 12 is deformed, the internal air will be discharged into the bracket 3 and blown toward the material at the discharge pipe 4, which can clean the dust mixed therein and improve the purity of the discharge material.

[0027] The bottom of the airbag 12 is connected to the connecting seat 15 through a plurality of pads 16 arranged circumferentially, a conveying pipe 17 is vertically arranged at the upper end of the connecting seat 15, a rubber pad 18 is fixedly installed at the upper end of the conveying pipe 17, the diameter of the conveying pipe 17 is smaller than the diameter of the discharge pipe 4, and the upper end of the conveying pipe 17 is arranged in the discharge pipe 4, the rubber pad 18 is in contact with the inner wall of the discharge pipe 4. It should be noted that the vibration of the discharge pipe 4 will cause the annular seat 5 to shake, and under the wrapping of the airbag 12, the conveying pipe 17 and the rubber pad 18 can better protect the discharge pipe 4 and prevent foreign matter from entering the outlet of the rotary vibrating screen.

[0028] The utility model provides a flexible device for reducing the entry of foreign matter into the outlet of a rotary vibrating screen. The specific working principle is as follows: a plurality of frames 1 are respectively installed on the base of the rotary vibrating screen through a clamping ring 2, and the bracket 3 is rotated to different positions, and moved upward to install the connecting seat 15, and the conveying pipe 17 enters the inside of the discharge pipe 4, and the rubber pad 18 installed on the top of the conveying pipe 17 contacts with the inner wall of the discharge pipe 4 to avoid collision during the discharge process, and the annular seat 5 is sleeved outside the discharge pipe 4, and the side walls of the annular seat 5 squeeze the limiting rods 9 on both sides at the same time. At this time, the two springs 8 are in a contracted state, and when the limiting rods 9 on both sides are respectively moved into the corresponding grooves 6, under the elastic force of the two springs 8, the limiting rods 9 on both sides are simultaneously pushed against the inner walls of the corresponding grooves 6, thereby limiting the annular seat 5, completing the installation of the connecting seat 15, and then proceeding. During disassembly, the pressure plate 11 is pressed downwards to drive the movable rod 10 to move, and the limiting rods 9 on both sides can be pushed out of the groove 6, thereby completing the disassembly of the annular seat 5. During the operation of the rotary vibrating screen, the connecting seat 15 is connected to the external collecting device and will remain in a fixed position. The discharge pipe 4 will drive the annular seat 5 to shake, thereby continuously squeezing or stretching the airbag 12, so that the air inside the airbag 12 is discharged into the bracket 3, which can clean the dust mixed in the material and avoid it being discharged from the discharge pipe 4 together, thereby improving the purity of the screening. At the same time, due to the small diameters of the outlet pipe 13 and the inlet pipe 14, the gas inside the airbag 12 will not be emptied quickly, and the airbag 12 will be slightly deformed, which can play a shock-absorbing role on the connection, and the airbag 12 keeps in contact with the outer wall of the discharge pipe 4 to prevent foreign matter from entering the outlet of the rotary vibrating screen.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flexible device for reducing the entry of foreign matter into the outlet of a vibrating screen, comprising a frame (1), characterized in that: A restraining ring (2) is installed on the side wall of the frame (1), and a bracket (3) is connected to the frame (1). The lower end of the bracket (3) is fixedly connected to a discharge pipe (4), and the discharge pipe (4) is connected to an annular seat (5) through two symmetrically arranged limit devices. The lower end of the annular seat (5) is provided with an air bag (12), and the top of the air bag (12) is connected to an air outlet pipe (13), and the bottom of the air bag (12) is connected to an air inlet pipe (14). The bottom of the air bag (12) is connected to a connecting seat (15) through a plurality of circumferentially arranged pads (16), and a conveying pipe (17) is vertically arranged at the upper end of the connecting seat (15), and a rubber pad (18) is fixedly installed at the upper end of the conveying pipe (17).

2. A flexible device for reducing foreign matter from entering the outlet of a rotary vibrating screen according to claim 1, characterized in that: The limiting device comprises a sleeve (7) and a movable rod (10), a spring (8) is installed in the sleeve (7), a limiting rod (9) is slidably penetrated on the sleeve (7), and a pressure plate (11) is fixedly connected to the top of the movable rod (10).

3. A flexible device for reducing foreign matter from entering the outlet of a rotary vibrating screen according to claim 2, characterized in that: The sleeve (7) is fixedly connected to the side wall of the discharge pipe (4), one end of the spring (8) is fixedly connected to the inner wall of the sleeve (7), and the other end of the spring (8) is fixedly connected to the limit rod (9).

4. A flexible device for reducing foreign matter from entering the outlet of a rotary vibrating screen according to claim 2, characterized in that: The annular seat (5) is symmetrically provided with two grooves (6), and the limiting rod (9) and the movable rod (10) are respectively arranged in the grooves (6) at corresponding positions, and the ends of the limiting rod (9) and the movable rod (10) that are in contact are both arranged on a hemisphere.

5. The flexible device for reducing foreign matter from entering the outlet of the vibrating screen according to claim 1, characterized in that: One end of the air outlet pipe (13) away from the air bag (12) extends into the bracket (3), and a first one-way valve is installed at the end of the air outlet pipe (13); the air inlet pipe (14) is connected to the connecting seat (15), and a second one-way valve is installed at the end of the air inlet pipe (14).

6. A flexible device for reducing foreign matter from entering the outlet of a rotary vibrating screen according to claim 5, characterized in that: The first one-way valve restricts the gas from being discharged from the airbag (12) into the bracket (3), and the second one-way valve restricts the external gas from entering the airbag (12) in one direction.

7. The flexible device for reducing foreign matter from entering the outlet of the vibrating screen according to claim 1, characterized in that: The diameter of the conveying pipe (17) is smaller than the diameter of the discharge pipe (4), and the upper end of the conveying pipe (17) is arranged inside the discharge pipe (4), and the rubber pad (18) is in contact with the inner wall of the discharge pipe (4).

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