Material screening device used before material mixing

Abstract

The utility model belongs to the technical field of material screening, and particularly relates to a material screening device before material mixing, which comprises a bracket, a material screening roller which does rotary motion is arranged on the bracket, the material screening roller is obliquely arranged, the material screening roller comprises steel rings positioned at two ends, a rotating shaft is arranged in the center of the material screening roller, a shaft sleeve is sleeved on the rotating shaft, and a supporting rod is arranged on the shaft sleeve. The supporting rods are provided with connecting rods, the steel ring is provided with a plurality of steel bars in a clamped mode, the steel bars are arranged around the central axis of the rotating shaft at intervals, the connecting rods abut against the inner sides of the steel bars, and the outer sides of the steel bars are provided with a plurality of steel rings. The material screening task can be continuously completed by replacing the steel bars and the steel rings, and the equipment cost during production is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of material screening, and particularly relates to a screening device before mixing. BACKGROUND

[0002] Metal materials used in casting will be recycled and broken into pieces after casting for reuse. After reuse, the recycled and broken pieces will be mixed and cast again. Fine particulate impurities remaining in the recycled and broken pieces during the casting process need to be separated and screened.

[0003] The drum-type screening structure is in contact with metal materials for a long time, which can cause serious drum wear and affect the strength of the drum, thereby causing the screening gap to become larger and affecting the screening effect. The entire drum structure needs to be replaced after a long period of use, and the replacement cost is also relatively high. CONTENT OF THE INVENTION

[0004] The application provides a screening device before mixing to solve the above problems.

[0005] The application aims to provide a screening device before mixing. The screening drum is composed of detachable steel bars and steel rings. The application can continue to complete the screening task by replacing the steel bars and steel rings, thereby reducing the equipment cost during production.

[0006] To achieve the purpose of the application, the technical solution of the application is as follows:

[0007] A screening device before mixing includes a support, a screening drum rotating on the support, and the screening drum being arranged obliquely. The screening drum includes steel rings at both ends, a rotating shaft is arranged at the center of the screening drum, a shaft sleeve is arranged on the rotating shaft, a support rod is arranged on the shaft sleeve, a connecting rod is arranged on the support rod, a plurality of steel bars are clamped on the steel rings, the steel bars are arranged at intervals around the central axis of the rotating shaft, the connecting rod abuts against the inner side of the steel bars, and a plurality of steel rings are arranged on the outer side of the steel bars.

[0008] Further, the steel rings are arranged on the steel rings, and the ends of the steel bars are arranged in the clamping grooves.

[0009] Further, the steel ring includes at least two arc-shaped plates, and the arc-shaped plates are connected together by bolts.

[0010] Further, the outer side of the screening drum is provided with an outer shell.

[0011] Further, the outer shell includes at least two shell bodies, a baffle is arranged on the shell body, the baffle covers the front end of the screening drum, a connecting plate is arranged on the shell body, and the connecting plates of the two shell bodies are fixedly connected together by bolts.

[0012] Furthermore, bearing seats are provided at both the front and rear ends of the bracket. The end of the rotating shaft is connected to the bearing in the bearing seat. A transmission wheel is provided at the end of the rotating shaft that protrudes from the bearing seat. The transmission wheel is connected to the drive device through a transmission device, and the drive device drives the rotating shaft to rotate.

[0013] Furthermore, the transmission device can be any of a belt, synchronous belt, or chain.

[0014] Furthermore, a support frame is provided at the front end of the bracket, and a feeding hopper is provided at the upper end of the support frame. The end of the feeding hopper is aligned with the feed inlet of the screening drum.

[0015] Furthermore, a chute is provided at the end of the support, with the head of the chute aligned with the discharge port of the screening drum.

[0016] Compared with the prior art, the beneficial effects of this application are as follows:

[0017] 1. This application utilizes an inclined support to make the screening drum also inclined. As the screening drum rotates, the material to be screened moves continuously along the screening drum to complete the screening.

[0018] 2. The screening drum of this application is composed of detachable steel bars and steel rings. After the screening drum has been used for a long time, the outer shell can be disassembled and the screening task can be continued by replacing the steel bars and steel rings, which reduces the equipment cost during production. In addition, the outer side of the steel ring is in contact with the steel bar, so that the steel bar mainly contacts the material, which reduces the replacement frequency of the steel ring and further reduces the equipment cost for production.

[0019] 3. This application relies on the connecting rod to support the steel bar inside and on the steel ring to support the steel bar outside, so that the steel bar is fixed and stable on the steel ring. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0021] Fig. 1 This is a schematic diagram of the overall structure of the screening roller installed on the support in this application;

[0022] Fig. 2 This is a schematic diagram of the structure of the screen roller covered by the outer shell of this application;

[0023] Fig. 3 This is a schematic diagram of the overall structure of this application.

[0024] In the picture:

[0025] 1. Bracket, 2. Steel ring, 3. Steel bar, 4. Steel ring, 5. Feed hopper, 6. Bearing seat, 7. Rotating shaft, 8. Bushing, 9. Support rod, 10. Connecting rod, 11. Housing, 12. Connecting plate, 13. Drive wheel, 14. Slide groove, 15. Baffle. Detailed Implementation

[0026] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0027] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0028] In this application, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various parts or elements of this application and do not specifically refer to any part or element in this application. They should not be construed as limiting this application.

[0029] Example 1

[0030] This embodiment relates to a pre-mixing screening device, the main feature of which is to improve material screening efficiency, extend equipment service life and reduce maintenance costs through a specific structural design.

[0031] Specifically, such as Figs. 1-3As shown, this embodiment uses a tilted, rotating screening drum to move materials within it. The tilt angle is no higher than 5° to ensure sufficient time for the material to remain within the drum, allowing for more thorough contact with the screen during screening. Structurally, the design of the steel ring 2 and the slot effectively secures the steel bar 3, reducing structural loosening caused by vibration during screening and improving the overall stability of the equipment. Specifically, the screening drum has steel rings 2 at both ends, with several slots spaced apart on each ring. The center of the drum is a rotating shaft 7, on which a bushing 8 is fitted. The bushing 8 is bolted to the rotating shaft 7 and has a support rod. 9. A connecting rod 10 is installed on the support rod 9. The connecting rod 10 is a steel pipe with both ends sealed. The steel pipe is detachably connected to the support rod 9. Several steel bars 3 are clamped on the steel ring 2. The ends of the steel bars 3 are placed in the slots. The steel bars 3 are arranged at intervals around the central axis of the rotating shaft 7. The connecting rod 10 contacts the inner side of the steel bars 3. Since the steel bars 3 are arranged at intervals, the connecting rod 10 can be arranged at the intervals of the steel bars 3, so that when the screen drum rotates, the connecting rod 10 and the steel bars 3 move together. Several steel rings 4 are installed on the outer side of the steel bars 3. The steel rings 4 include at least two arc-shaped plates. The arc-shaped plates are connected to the steel bars 3 by bolts, so that the steel bars 3 can be removed from the steel ring 2 after the arc-shaped plates are removed.

[0032] As a more specific implementation, the arc-shaped plates in this embodiment are arranged in an alternating manner. For example, the two arc-shaped plates in the first column are connected to the 1st-18th and 19th-36th steel bars 3 respectively. Then, one arc-shaped plate in the second column is connected to the 9th-27th steel bars 3, and the other arc-shaped plate is connected to the 1st-8th and 28th-36th steel bars, thus achieving an alternating arrangement. This makes the entire steel bar 3 and the steel ring 4 connected as a whole. Since the steel ring 4 restricts the steel bar 3 on the outside, the support rod 9 and the connecting rod 10 support the steel bar 3 on the inside, making the entire screen drum stronger.

[0033] In order to reduce the cost of equipment use, this embodiment adopts a modular structure that can be replaced after wear. Furthermore, the outer side of the steel ring 4 contacts the outer side of the steel bar 3, so that the steel bar 3 mainly contacts the material, which reduces the replacement frequency of the steel ring 4 and further reduces the equipment cost for production.

[0034] As a more specific structure in this embodiment, the outer side of the screening drum has a shell 11, which is also a detachable structure. The shell 11 includes at least two shells, each with a baffle 15 covering the front end of the screening drum. The shell also has a connecting plate 12. The baffle 15 is part of the shell structure, and the connecting plate 12 is also located at the baffle 15. The connecting plates 12 of the two shells are fixedly connected together by bolts. In this embodiment, the shell 11 covers the screening drum and is equipped with a baffle 15 to prevent material from splashing out, ensure the safety of operators, and improve the cleanliness of the working environment. As a corresponding feeding structure, a feeding port is reserved at the baffle 15. A support frame is welded to the front end of the bracket 1, and a feeding bin 5 is welded to the upper end of the support frame. The end of the feeding bin 5 is aligned with the feeding port of the screening drum. As a discharging structure, a chute 14 is installed at the end of the bracket 1, and the head end of the chute 14 is aligned with the discharge port of the screening drum.

[0035] As the power source for the screening drum, this embodiment uses a drive device to drive the screening drum to move. The drive device is a drive motor. Specifically, the front and rear ends of the support 1 are equipped with bearing seats 6. The end of the rotating shaft 7 is connected to the bearing in the bearing seat 6. A transmission wheel 13 is installed at the end of the rotating shaft 7 that protrudes from the bearing seat 6. In this embodiment, the transmission wheel 13 is arranged at the rear end of the support 1. The transmission wheel 13 is connected to the drive device through a transmission device, and the drive device drives the rotating shaft 7 to rotate. The transmission device can be any of a belt, synchronous belt, or chain. Correspondingly, the transmission wheel 13 should be a pulley, synchronous pulley, or sprocket. Since there is contact between the connecting rod 10 and the steel bar 3, the rotating shaft 7 drives the connecting rod 10 to move. The connection between the connecting rod 10 and the steel bar 3 causes the entire screening drum to rotate.

[0036] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

[0037] While the specific embodiments of this application have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of this application. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solutions of this application are still within the scope of protection of this application.

Claims

1. A pre-mixing material screening device, comprising a support frame (1), characterized in that: a rotating screening drum is arranged on the support frame (1), the screening drum is arranged obliquely, the screening drum comprises a steel ring (2) at both ends, a rotating shaft (7) is arranged at the center of the screening drum, a shaft sleeve (8) is sleeved on the rotating shaft (7), a support rod (9) is arranged on the shaft sleeve (8), a connecting rod (10) is arranged on the support rod (9), a plurality of steel bars (3) are clamped on the steel ring (2), the steel bars (3) are arranged at intervals around the central axis of the rotating shaft (7), the connecting rod (10) abuts against the inner side of the steel bars (3), and a plurality of steel rings (4) are arranged on the outer side of the steel bars (3).

2. The pre-mixing material screening device according to claim 1, characterized in that: the steel ring (2) is provided with a clamping groove, and the end of the steel bar (3) is placed in the clamping groove.

3. The pre-mixing material screening device according to claim 1, characterized in that: the steel ring (4) comprises at least two arc-shaped plates, and the arc-shaped plates are connected together with the steel bar (3) through bolts.

4. The pre-mixing material screening device according to claim 1, characterized in that: an outer shell (11) is arranged on the outer side of the screening drum.

5. The pre-mixing material screening device according to claim 4, characterized in that: the outer shell (11) comprises at least two shell bodies, a baffle (15) is arranged on the shell body, the baffle (15) covers the front end of the screening drum, a connecting plate (12) is arranged on the shell body, and the connecting plates (12) of the two shell bodies are fixedly connected together through bolts.

6. The pre-mixing material screening device according to claim 1, characterized in that: the front end and the rear end of the support frame (1) are both provided with a bearing seat (6), the end of the rotating shaft (7) is connected with a bearing in the bearing seat (6), a transmission wheel (13) is arranged on the end of the rotating shaft (7) protruding out of the bearing seat (6), the transmission wheel (13) is connected with a driving device through a transmission device, and the rotating shaft (7) is driven to rotate by the driving device.

7. The pre-mixing material screening device according to claim 6, characterized in that: the transmission device is any one of a belt, a synchronous belt and a chain.

8. The pre-mixing material screening device according to claim 1, characterized in that: a support frame is arranged at the front end of the support frame (1), a feeding bin (5) is arranged at the upper end of the support frame, and the tail end of the feeding bin (5) is aligned with the feeding port of the screening drum.

9. The pre-mixing material screening device according to claim 1, characterized in that: a chute (14) is arranged at the tail end of the support frame (1), and the head end of the chute (14) is aligned with the discharging port of the screening drum. ​ ​ ​ ​ ​ ​ ​ ​ ​

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