Circulating screening mechanism of jaw crusher

By designing the circulating screening mechanism of the jaw crusher, using components such as screening racks, vibrating motors, electric push rods and screw conveyors, the problems of jaw crusher blocking and screening capacity reduction during material screening are solved, and efficient material screening and self-cleaning effects are achieved.

CN222998924UActive Publication Date: 2025-06-20ANHUI MAGANG ZHANGZHUANG MINING CO LTD
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Patent Information

Application Number
CN202421492544.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-27
Publication Date
2025-06-20
Estimated Expiration
2034-06-27

AI Technical Summary

Technical Problem

When existing jaw crushers crush materials, they cannot meet the capacity of sufficient screening of large amounts of crushed materials, and are easily blocked by the materials, resulting in a decrease in screening capacity.

Method used

A circulating screening mechanism of a jaw crusher is designed, including screening rack, discharge collection seat, installation box, vibration motor, electric push rod, dredging rack and screw conveyor frame. The driving motor drives the screening roller to rotate, the vibration motor increases screening efficiency, the electric push rod drives the dredging rack to automatically remove blocked materials, and the screw conveyor frame to achieve material return and circulation screening.

Benefits of technology

It improves the screening efficiency of materials, realizes the self-cleaning effect, reduces the screening pressure of the screening roller, improves the screening effect of materials, and realizes automatic cyclic screening of materials.

✦ Generated by Eureka AI based on patent content.

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Abstract

The circulating screening mechanism comprises a screening frame, a discharged material collecting seat is fixedly mounted on the inner side of the middle of the screening frame, a mounting box is fixedly mounted on the inner side of one end of the screening frame, a vibrating motor is fixedly mounted on the inner side of the mounting box, and a vibrating motor is fixedly mounted on the inner side of the vibrating motor. A vibration transmission ring is fixedly mounted at one end of the mounting box, an electric push rod is fixedly mounted at one end of the screening frame, a driving motor is fixedly mounted on one side of the electric push rod, a driving roller is fixedly mounted at the output end of the driving motor, and a dredging frame is fixedly mounted at the output end of the electric push rod; and two plugging discs are mounted on the inner side of the upper end of the screening frame. According to the utility model, the materials crushed by the jaw crusher are subjected to rolling screening, so that the materials can be fully screened, the circulating screening effect is realized, the blocked materials are removed, the self-cleaning effect is realized, and the efficient and stable screening capability is kept.
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Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary equipment for jaw crushers, and specifically relates to a circulating screening mechanism for jaw crushers. Background Technique

[0002] The jaw crusher is commonly known as the jaw breaker, also known as the tiger's mouth. It consists of a moving jaw and a static jaw, two jaw plates forming a crushing cavity, and is a crusher that simulates the movement of the two jaws of an animal to complete the crushing of materials. It is widely used in the crushing of various ores and large pieces of materials in industries such as mining and smelting, building materials, highways, railways, water conservancy, and chemical engineering. It is divided into large, medium, and small types according to the width of the feeding port. The jaw crusher has a simple structure, is easy to manufacture, and works reliably.

[0003] During the process of crushing and screening materials by the existing jaw crushers, it is impossible to fully screen a large amount of crushed materials, and it is easily blocked by the materials during the screening process, resulting in a decline in the screening ability; therefore, it does not meet the existing requirements, and for this reason, we propose a circulating screening mechanism for jaw crushers. Content of the Utility Model

[0004] The purpose of the utility model is to provide a circulating screening mechanism for jaw crushers to solve the problems in the above background technique that during the process of crushing and screening materials by the existing jaw crushers, it is impossible to fully screen a large amount of crushed materials, it is not convenient to circulate and screen the materials, and the separation effect of materials of different sizes is not good.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A circulating screening mechanism for a jaw crusher, including a screening frame. Inside the middle of the screening frame, a discharge collection seat is fixedly installed. Inside one end of the screening frame, an installation box is fixedly installed. Inside the installation box, a vibration motor is fixedly installed. At one end of the installation box, a vibration transmission ring is fixedly installed. At one end of the screening frame, an electric push rod is fixedly installed. On one side of the electric push rod, a driving motor is fixedly installed. At the output end of the driving motor, a driving roller is fixedly installed. At the output end of the electric push rod, a dredging frame is fixedly installed. Inside the upper end of the screening frame, two blocking disks are installed. Between the two blocking disks, a screening drum is rotatably connected. At the other end of the screening frame, a feeding box is fixedly installed.

[0006] Preferably, a first material conveying cylinder is fixedly installed on one side of the feeding box. A first spiral conveyor is rotatably connected inside the first material conveying cylinder. One end of the first spiral conveyor is equipped with a first driving motor. Inside the bottom end of the feeding box, a third material conveying cylinder is fixedly installed. At the bottom end of the third material conveying cylinder, a third driving motor is fixedly installed. The output end of the third driving motor is fixedly installed with a third spiral conveyor. On one side of the third material conveying cylinder, a second material conveying cylinder is fixedly installed. At one end of the second material conveying cylinder, a second driving motor is fixedly installed. Inside the second material conveying cylinder, a second spiral conveyor is rotatably connected.

[0007] Preferably, the screening frame is fixedly connected to two blocking discs, and the blocking discs are fixedly connected to the vibration transmission ring by screws.

[0008] Preferably, both ends of the screening drum are rotatably connected to two blocking discs through bearings, and the output end of the driving motor is rotatably connected to the screening drum through a driving roller.

[0009] Preferably, both ends of the dredging frame are inserted into the inside of the upper end of the screening frame. Both ends of the dredging frame are slidably connected to the upper end of the screening frame. A plurality of plugs are provided on the lower end surface of the dredging frame. A plurality of screening holes are provided on the outer surface of the screening drum. The cross-sectional dimension of the plug is smaller than the dimension of the screening hole.

[0010] Preferably, the output end of the first driving motor is connected to the first spiral conveyor through a coupling. The output end of the second driving motor is connected to the second spiral conveyor through a coupling. The rotation directions of the second spiral conveyor and the third spiral conveyor are opposite to the rotation direction of the first spiral conveyor.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. In the present utility model, the driving motor drives the screening drum to rotate through the driving roller. A plurality of screening holes are provided on the outer surface of the blocking disc, so that the blocking disc can perform a rolling screening operation on the material through the screening holes, improving the screening efficiency of the material. The electric push rod drives the dredging frame to slide up and down reciprocally. Then, a plurality of plugs provided on the lower end surface of the dredging frame can remove the material blocked inside the screening holes, maintaining the screening ability of the screening drum and achieving the effect of self-cleaning.

[0013] 2. In the present utility model, the second driving motor drives the second spiral conveyor to rotate and the third driving motor drives the third spiral conveyor to rotate. Under the guiding action of the second material conveying cylinder and the third material conveying cylinder, the material inside the screening drum can be refluxed to the inside of the feeding box, realizing the automatic cycle of material screening, effectively reducing the screening pressure of the screening drum and improving the screening effect of the material. Description of the Drawings

[0014] Figure 1 is the overall structural schematic diagram of the present utility model;

[0015] Figure 2 is the top view of the overall present utility model;

[0016] Figure 3 is the sectional structural schematic diagram of the overall present utility model;

[0017] Figure 4 is the installation structural schematic diagram of the third material conveying cylinder of the present utility model;

[0018] Figure 5 is the sectional structural schematic diagram of the feed box of the present utility model.

[0019] In the figure: 1, screening material rack; 2, electric push rod; 3, feed box; 4, discharge collection seat; 5, drive motor; 6, dredging rack; 7, blocking plate; 8, installation box; 9, vibration motor; 10, screening material roller; 11, drive roller; 12, first transmission motor; 13, first spiral conveyor; 14, vibration transmission ring; 15, first material conveying cylinder; 16, second material conveying cylinder; 17, third material conveying cylinder; 18, second transmission motor; 19, third transmission motor; 20, second spiral conveyor; 21, third spiral conveyor. Specific embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0021] The electric push rod 2 (model number HTKC - 35), drive motor 5 (model number YS7134), vibration motor 9 (model number JZO - 50 - 4), first transmission motor 12 (model number GV50 - 3.7KW - 60 - S), second transmission motor 18 (model number YEJ3 - 112M - 4) and third transmission motor 19 (model number YEJ3 - 112M - 4) mentioned in the present utility model can all be obtained by purchasing from the market or customizing privately.

[0022] Please refer to Figures 1 to 3, an embodiment provided by the present utility model: a circulating screening mechanism for a jaw crusher, including a screening frame 1. An outlet collection seat 4 is fixedly installed inside the middle of the screening frame 1. An installation box 8 is fixedly installed inside one end of the screening frame 1. A vibration motor 9 is fixedly installed inside the installation box 8. A vibration transmission ring 14 is fixedly installed at one end of the installation box 8. The screening frame 1 is fixedly connected to two blocking plates 7. The blocking plate 7 and the vibration transmission ring 14 are fixedly connected by screws, so that the vibration motor 9 drives the vibrating materials through the installation box 8 to improve the screening efficiency.

[0023] Please refer to Figures 1 to 3 , an electric push rod 2 is fixedly installed at one end of the screening frame 1. A driving motor 5 is fixedly installed on one side of the electric push rod 2. An output end of the driving motor 5 is fixedly installed with a driving roller 11. Two blocking plates 7 are installed inside the upper end of the screening frame 1. A screening drum 10 is rotatably connected between the two blocking plates 7. Both ends of the screening drum 10 are rotatably connected to the two blocking plates 7 through bearings. The output end of the driving motor 5 is rotationally connected to the screening drum 10 through the driving roller 11, so that the driving motor 5 drives the screening drum 10 to rotate between the two blocking plates 7 through the driving roller 11, enabling the blocking plate 7 to perform a rolling screening operation on the materials.

[0024] Please refer to Figure 1 and 3 , a dredging frame 6 is fixedly installed at the output end of the electric push rod 2. Both ends of the dredging frame 6 are inserted into the inner side of the upper end of the screening frame 1. Both ends of the dredging frame 6 are slidably connected to the upper end of the screening frame 1. A plurality of plugs are provided on the lower end surface of the dredging frame 6. A plurality of screening holes are provided on the outer surface of the screening drum 10. The cross-sectional dimension of the plug is smaller than the dimension of the screening hole. By driving the dredging frame 6 to reciprocate up and down through the electric push rod 2, the blocked materials can be automatically cleared to achieve a self-cleaning effect.

[0025] Please refer to Figures 3 to 5 , a feed box 3 is fixedly installed at the other end of the screening frame 1. A first conveying cylinder 15 is fixedly installed on one side of the feed box 3. A first spiral conveyor frame 13 is rotatably connected inside the first conveying cylinder 15. A first driving motor 12 is installed at one end of the first spiral conveyor frame 13, so that the first driving motor 12 can continuously input materials through the first spiral conveyor frame 13;

[0026] Inside the bottom end of the feeding box 3, a third material conveying cylinder 17 is fixedly installed. At the bottom end of the third material conveying cylinder 17, a third driving motor 19 is fixedly installed. At the output end of the third driving motor 19, a third spiral conveying rack 21 is fixedly installed. On one side of the third material conveying cylinder 17, a second material conveying cylinder 16 is fixedly installed. At one end of the second material conveying cylinder 16, a second driving motor 18 is fixedly installed. Inside the second material conveying cylinder 16, a second spiral conveying rack 20 is rotatably connected. The output end of the first driving motor 12 is connected to the first spiral conveying rack 13 through a coupling. The output end of the second driving motor 18 is connected to the second spiral conveying rack 20 through a coupling. The rotation directions of the second spiral conveying rack 20 and the third spiral conveying rack 21 are opposite to the rotation direction of the first spiral conveying rack 13. Through the second spiral conveying rack 20 and the third spiral conveying rack 21, the materials inside the screening drum 10 can be refluxed to realize cyclic screening.

[0027] During use, the materials crushed by the jaw crusher are put inside the feeding box 3. The power is turned on, and the first driving motor 12 is started. Under the supporting effect of the feeding box 3, the rotation of the first spiral conveying rack 13 driven by the first driving motor 12 can realize the conveyance of the materials to the inside of the screening drum 10. The driving motor 5 is started. Under the supporting effect of the screening rack 1, the driving motor 5 drives the screening drum 10 to rotate between the two sealing discs 7 through the driving rollers 11. On the outer surface of the sealing disc 7, there are a plurality of screening holes, so that the sealing disc 7 can perform a rolling screening operation on the materials through the screening holes, improving the screening efficiency of the materials, and the screened materials are collected and output through the discharging and collecting seat 4. The vibration motor 9 is started. The vibration motor 9 drives the screening drum 10 to vibrate through the mounting box 8, the vibration transmission ring 14 and the sealing disc 7, thereby improving the high-efficiency screening of the materials that are rolled and vibrated by the screening drum 10.

[0028] The electric push rod 2 is started. Under the supporting effect of the screening rack 1, the electric push rod 2 drives the dredging rack 6 to slide up and down reciprocally inside the upper end of the screening rack 1. Then, a plurality of plugs provided on the lower end surface of the dredging rack 6 can remove the materials blocked inside the screening holes, maintaining the screening ability of the screening drum 10 and realizing the self-cleaning effect.

[0029] The second driving motor 18 and the third driving motor 19 are started. The second driving motor 18 drives the second spiral conveying rack 20 to rotate and the third driving motor 19 drives the third spiral conveying rack 21 to rotate. Under the guiding effect of the second material conveying cylinder 16 and the third material conveying cylinder 17, the materials inside the screening drum 10 can be refluxed to the inside of the feeding box 3. According to the size of the materials, the circulating materials are screened again or cleared out, realizing the automatic cycle of material screening, which can effectively reduce the screening pressure of the screening drum 10 and improve the screening effect of the materials.

[0030] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claimed rights.

Claims

1. A circulating screening mechanism for a jaw crusher, comprising a screening frame (1), characterized in that: A material discharging collecting seat (4) is fixedly installed on the inner side of the middle part of the screening frame (1); a mounting box (8) is fixedly installed on the inner side of one end of the screening frame (1); a vibration motor (9) is fixedly installed on the inner side of the mounting box (8); a vibration transmission ring (14) is fixedly installed on one end of the mounting box (8); an electric push rod (2) is fixedly installed on one end of the screening frame (1); a driving motor (5) is fixedly installed on one side of the electric push rod (2); a driving roller (11) is fixedly installed on the output end of the driving motor (5); a dredging frame (6) is fixedly installed on the output end of the electric push rod (2); two blocking disks (7) are installed on the inner side of the upper end of the screening frame (1); a screening drum (10) is rotatably connected between the two blocking disks (7); and a feed box (3) is fixedly installed on the other end of the screening frame (1).

2. A circulating screening mechanism for a jaw crusher according to claim 1, characterized in that: A first feed cylinder (15) is fixedly mounted on one side of the feed box (3); a first screw conveyor frame (13) is rotatably connected to the inner side of the first feed cylinder (15); a first transmission motor (12) is mounted on one end of the first screw conveyor frame (13); a third feed cylinder (17) is fixedly mounted on the inner side of the bottom end of the feed box (3); a third transmission motor (19) is fixedly mounted on the bottom end of the third feed cylinder (17); a third screw conveyor frame (21) is fixedly mounted on the output end of the third transmission motor (19); a second feed cylinder (16) is fixedly mounted on one side of the third feed cylinder (17); a second transmission motor (18) is fixedly mounted on one end of the second feed cylinder (16); and a second screw conveyor frame (20) is rotatably connected to the inner side of the second feed cylinder (16).

3. The circulating screening mechanism of a jaw crusher according to claim 1, characterized in that: The screening frame (1) is fixedly connected to two blocking discs (7), and the blocking discs (7) are fixedly connected to the vibration transmission ring (14) via screws.

4. The circulating screening mechanism of a jaw crusher according to claim 1, characterized in that: Both ends of the screening drum (10) are rotatably connected to the two sealing disks (7) via bearings, and the output end of the drive motor (5) is rotatably connected to the screening drum (10) via a drive roller (11).

5. The circulating screening mechanism of a jaw crusher according to claim 1, characterized in that: Both ends of the dredging frame (6) are plugged into the inner side of the upper end of the screening frame (1), and the two ends of the dredging frame (6) are slidably connected to the upper end of the screening frame (1). The lower end surface of the dredging frame (6) is provided with a plurality of plugs, and the outer surface of the screening drum (10) is provided with a plurality of sieve holes, and the cross-sectional size of the plug is smaller than the size of the sieve hole.

6. A circulating screening mechanism for a jaw crusher according to claim 2, characterized in that: The output end of the first transmission motor (12) is connected to the first screw conveyor frame (13) through a coupling, and the output end of the second transmission motor (18) is connected to the second screw conveyor frame (20) through a coupling. The rotation direction of the second screw conveyor frame (20) and the third screw conveyor frame (21) is opposite to the rotation direction of the first screw conveyor frame (13).