Self-lubricating totally-closed grading type environment-friendly roller screen

Abstract

The utility model relates to the field of mechanical equipment, and discloses a self-lubricating totally-closed grading type environment-friendly roller screen which comprises an integral base, a screen box structure is fixedly connected to the integral base, a feeding chute is fixedly connected to the front side wall of the screen box structure, a self-lubricating system is arranged on the front side of the integral base, and the self-lubricating system is arranged on the front side of the integral base. A plurality of driving devices are arranged on one side wall of the screen box structure, and gearbox transmission devices are connected to the output ends of the driving devices respectively. According to the utility model, the whole box body is tightly sealed, the feeding chute is connected with the feeding port through a flange, the lower discharging chute of the roller screen directly enters a guide chute of a belt conveyor, the front discharging chute at the upper part of the roller screen is connected with a downstream equipment crusher through a flange, and the screen shaft is tightly sealed, so that the environment-friendly requirement can be met; the problem of dust overflow can be fully solved, the national green and environment-friendly requirements are met, and the effect is better.

Description

Technical Field

[0001] The utility model relates to the field of mechanical equipment, in particular to a self-lubricating fully enclosed graded environmentally friendly roller screen. Background Art

[0002] With the rapid development of my country's economy and science and technology and the integration of energy industries such as coal and mining, the screening and environmental protection requirements for coarse-grained materials such as large coal, limestone and shale are particularly important. In view of the current shortcomings of roller screens such as blocking, jamming and poor sealing effect, and in order to meet the national green, energy-saving and environmental protection policies, our company has developed a green, environmentally friendly and self-lubricating fully enclosed graded roller screen. my country's energy industry is gradually moving towards open-pit mining areas such as Xinjiang and Inner Mongolia. Roller screening equipment is in the pre-screening position in the production process of coal, mining and other industries. Pre-screening the required particle size of the crusher can reduce the crusher selection and powder rate, occupy a small space, save costs, and is unique and irreplaceable. Once damaged, it will directly lead to the entire production process. The entire process will be shut down, causing immeasurable economic losses, which puts higher requirements on roller screening equipment. In order to save energy, achieve environmental protection, and reduce the failure rate of equipment, the traditional roller screen that is easy to jam, block, and ash is seriously optimized.

[0003] Firstly, the original ordinary roller screen has poor sealing of the bearing seat; secondly, the coal pushing capacity is poor, which easily causes coal blockage and shaft jamming. The non-standard equipment is difficult to manufacture and process, with high cost, high failure rate and great difficulty in maintenance; while the newly developed green, environmentally friendly and self-lubricating fully enclosed graded roller screen has been put into field use last year and has not encountered any problems such as blockage, jamming and powder leakage. It has modular design, convenient processing and manufacturing, and has the advantages of cleanliness, environmental protection, anti-blocking and anti-jamming, and is increasingly favored by manufacturers. Therefore, technicians in this field provide a self-lubricating, fully enclosed and graded environmentally friendly roller screen to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art, and a self-lubricating fully enclosed graded environmentally friendly roller screen is proposed. The screen box structure is an independent small module, and the spacing between the rollers can be appropriately adjusted according to the different material sizes of the discharged materials. Each screen box structure is equipped with at least one set of driving devices, which is driven by one set of gear boxes to drive a number of rollers with cross-arranged blades to rotate together, so that the material moves forward under the action of power and the thrust of the blades, with sufficient transmission power and small space occupation area.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a self-lubricating fully enclosed graded environmentally friendly roller screen, comprising an integral base, a screen box structure is fixedly connected to the upper end of the integral base, a feed chute is fixedly connected to the front side wall of the screen box structure, a self-lubricating system is arranged on the front side of the integral base, a plurality of driving devices are arranged on one side wall of the screen box structure, and a gear box transmission device is respectively connected to the output ends of the plurality of driving devices;

[0006] Through the above technical solution, the screen box structure is an independent small module, and the spacing between the rollers can be appropriately adjusted according to the different discharge degrees. Each screen box structure is equipped with at least one set of driving devices. The driving device is driven by one set of rollers with cross-arranged blades through a gear box to rotate together, so that the material moves forward under the action of power and the thrust of the blades. The transmission power is sufficient and the space occupied is small.

[0007] Further, the screen box structure includes an upper box body, a plurality of rollers are arranged inside the upper box body, a plurality of blades are fixedly connected to the side walls of the plurality of rollers, box body seals are arranged on the side walls of the plurality of rollers, a plurality of bearing seats are sleeved on the side walls of the plurality of rollers, the two ends of the plurality of rollers respectively pass through the two inner side walls of the upper box body and respectively pass to the outside, the ends of the plurality of rollers close to the plurality of driving devices are respectively connected to the gear box, a bottom support is arranged at the lower end of the gear box, the side walls of the ends of the plurality of rollers located inside the plurality of gear boxes are respectively fixedly connected to the transmission gears, a plurality of coupling structures are arranged close to the plurality of transmission gears, and the plurality of coupling structures are respectively connected to the gear box transmission device on the output end of the driving device;

[0008] Through the above technical solution, the inside of the bottom bracket contains a comb plate that matches the roller. The matching comb plate prevents materials and debris from sticking to the roller. The reinforced comb plate increases the strength of the box to prevent the box from twisting and deforming during transportation. The blade form will push the material forward during operation, effectively preventing the problem of material jamming and blocking. This type of roller screen is being used at the Henan project site. Since it was used for nearly a year, there has been no material jamming, jamming or leakage, and it has received unanimous praise from customers.

[0009] Furthermore, a sealing cover is provided at the upper end of the upper box body, and the sealing cover is connected to the upper box body by a plurality of fixing bolts;

[0010] Through the above technical solution, a closed space is formed, and the processed materials are completely within the sealed environment, responding to the national green and environmental protection requirements.

[0011] Furthermore, the blades on the side walls of every two adjacent rollers are respectively distributed in a staggered manner;

[0012] Through the above technical solution, the blades will push the material forward during operation, effectively preventing the problem of material jamming and blocking. This type of roller screen is being used at the Henan project site. Since its use nearly a year ago, there has been no material jamming, material leakage or blocking, and it has received unanimous praise from customers.

[0013] Furthermore, the driving device is composed of a motor, a reducer and a coupling;

[0014] Through the above technical solution, two types of drives are used, one with a relatively low driving speed is placed at the discharge end of the roller screen, and the other with a relatively high driving speed is placed at the feed end of the roller screen. The material layer at the feed end is thick and the speed is high, so a part of the material can be quickly screened out and allowed to run forward, thereby playing a role in preventing blockage and jamming.

[0015] Furthermore, the gearbox transmission device is composed of a motor, a reducer and a coupling;

[0016] Through the above technical solution, the overall structure is more compact and noise pollution is greatly reduced.

[0017] Furthermore, the materials of the roller and the blades are respectively composed of wear-resistant castings or wear-resistant steel plates;

[0018] Through the above technical solution, the overall wear resistance and service life are improved.

[0019] The utility model has the following beneficial effects:

[0020] 1. In the utility model, the blades of the roller are in the form of a proprietary design. When the roller rotates one circle, the blades will lift the material upward 3-6 times. The adjacent blades are arranged at 60 degrees on the roller, which can not only move the material forward, but also move the material to both sides, increase the screening area of ​​the material, increase the screening rate, effectively prevent blockage and jamming problems, and the modular design greatly shortens the production cycle of the equipment.

[0021] 2. In the utility model, the box body is tightly sealed as a whole, the feed chute is connected to the feed port flange, the discharge chute under the roller screen directly enters the belt conveyor guide chute, the discharge chute in front of the upper roller screen is connected to the downstream equipment crusher through a flange, and the screen shaft is tightly sealed, which can meet the environmental protection requirements. If used together with a dust collector, it can fully solve the problem of dust overflow, respond to the national green and environmental protection requirements, and the effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a front view of a self-lubricating, fully enclosed, graded, environmentally friendly roller screen proposed by the utility model;

[0023] Figure 2 for Figure 1 Sectional view in the AA direction;

[0024] Figure 3 A top view of the connection between the roller and the transmission gear in a self-lubricating fully enclosed graded environmentally friendly roller screen proposed by the utility model;

[0025] Figure 4 This is a side sectional view of a self-lubricating fully enclosed graded environmentally friendly roller screen proposed by the utility model;

[0026] Figure 5 It is a front cross-sectional view of a self-lubricating, fully enclosed, graded, environmentally friendly roller screen proposed by the utility model.

[0027] Legend:

[0028] 1. Feed chute; 2. Screen box structure; 201. Roller; 2011. Blade; 202. Box body seal; 203. Bearing seat; 204. Bottom support; 205. Upper box; 206. Coupling structure; 207. Gear box; 208. Transmission gear; 3. Integral base; 4. Drive device; 5. Gear box transmission device; 6. Self-lubricating system; 7. Sealing cover. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Reference Figure 1-5 The utility model provides an embodiment: a self-lubricating fully enclosed graded environmentally friendly roller screen, including an integral base 3, a screen box structure 2 is fixedly connected to the upper end of the integral base 3, a feed chute 1 is fixedly connected to the front side wall of the screen box structure 2, a self-lubricating system 6 is arranged on the front side of the integral base 3, a plurality of driving devices 4 are arranged on one side wall of the screen box structure 2, and a gear box transmission device 5 is respectively connected to the output ends of the plurality of driving devices 4. The screen box structure 2 is an independent small module, and the spacing of the rollers 201 can be appropriately adjusted according to the different discharge degrees. Each screen box structure 2 is equipped with at least one set of driving devices 4, and the driving device 4 is driven by a set of gear boxes 207 to drive the rollers 201 with several blades 2011 arranged crosswise to rotate together, so that the material moves forward under the action of power and the thrust of the blades 201, the transmission power is sufficient, and the space occupied is small.

[0031] The screen box structure 2 includes an upper box body 205, a plurality of rollers 201 are arranged inside the upper box body 205, a plurality of blades 2011 are fixedly connected to the side walls of the plurality of rollers 201, and the shape of the blades 2011 is a chamfered triangular plate, a box body seal 202 is arranged on the side walls of the plurality of rollers 201, a plurality of bearing seats 203 are sleeved on the side walls of the plurality of rollers 201, the two ends of the plurality of rollers 201 respectively penetrate the two inner side walls of the upper box body 205 and respectively pass to the outside, the ends of the plurality of rollers 201 close to the plurality of driving devices 4 are respectively connected to the gear boxes 207, the lower end of the gear box 207 is provided with a bottom bracket 204, and the plurality of rollers 201 located inside the plurality of gear boxes 207 are provided with a bottom bracket 204. 1 are fixedly connected to the side walls of the ends thereof, and a plurality of coupling structures 206 are arranged near the side of the plurality of transmission gears 208. The plurality of coupling structures 206 are respectively connected to the gear box transmission device 5 on the output end of the driving device 4. The interior of the bottom bracket 204 contains comb plates matching the rollers, and the matching comb plates prevent the rollers 201 from sticking materials and debris, wherein the reinforced comb plates increase the strength of the box body to prevent the box body from twisting and deforming during transportation. The blades 2011 will move forward against the materials during operation, effectively preventing the problems of material jamming and blocking. This type of roller screen is being used at the Henan project site. There has been no material jamming, jamming or leakage since it was used nearly a year ago, and it has been well received by customers.

[0032] A sealing cover 7 is provided at the upper end of the upper box body 205, and the sealing cover 7 is connected to the upper box body 205 by multiple fixing bolts to form an enclosed space. The processed materials are completely in a sealed environment. In response to the national green and environmental protection requirements, the blades 2011 on the side walls of every two adjacent rollers 201 are respectively distributed in a staggered manner. The driving device 4 is composed of a motor, a reducer and a coupling. There are two types of drives, one with a relatively low driving speed is placed at the discharge end of the roller screen, and the other with a relatively high driving speed is placed at the feed end of the roller screen. The material layer at the feed end is thick and the speed is high, which can quickly screen a part of the material and let it run forward, thereby playing a role in preventing blockage and jamming. The gear box transmission device 5 is composed of a motor, a reducer and a coupling. The overall structure is more compact and greatly reduces noise pollution. The materials of the rollers 201 and the blades 2011 are respectively composed of wear-resistant castings or wear-resistant steel plates, which improves the overall wear resistance and service life.

[0033] Working principle: The utility model is a self-lubricating, fully enclosed, graded, environmentally friendly roller screen. The driving device 4 is composed of a motor, a reducer and a coupling. There are two types of drives, one with a relatively low driving speed, which is placed at the discharge end of the roller screen, and the other with a relatively high driving speed, which is placed at the feed end of the roller screen. The material layer at the feed end is thick and the speed is high, so a part of the material can be quickly screened off and allowed to run forward, which plays a role in preventing blockage and jamming. The gear box transmission device 5 is composed of a motor, a reducer and a coupling. The overall structure is more compact, which greatly reduces noise pollution. The box body is tightly sealed as a whole, the feed chute 1 is flange-connected to the feed port, the discharge chute under the roller screen directly enters the belt conveyor guide chute, and the discharge chute in front of the upper screen of the roller screen is flange-connected to the downstream equipment crusher. The screen shaft is tightly sealed to meet environmental protection requirements. If used in conjunction with a dust collector, it can fully solve the problem of dust overflow, respond to the national green and environmental protection requirements, and have a better effect.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A self-lubricating fully enclosed graded environmentally friendly roller screen, comprising an integral base (3), characterized in that: The upper end of the integral base (3) is fixedly connected to a screen box structure (2), a front side wall of the screen box structure (2) is fixedly connected to a feed chute (1), a self-lubricating system (6) is arranged on the front side of the integral base (3), a plurality of drive devices (4) are arranged on a side wall of the screen box structure (2), and output ends of the plurality of drive devices (4) are respectively connected to gear box transmission devices (5).

2. A self-lubricating fully enclosed graded environmentally friendly roller screen according to claim 1, characterized in that: The screen box structure (2) comprises an upper box body (205), wherein a plurality of rollers (201) are arranged inside the upper box body (205), a plurality of blades (2011) are fixedly connected to the side walls of the plurality of rollers (201), box body seals (202) are arranged on the side walls of the plurality of rollers (201), a plurality of bearing seats (203) are sleeved on the side walls of the plurality of rollers (201), and the two ends of the plurality of rollers (201) respectively penetrate the two inner side walls of the upper box body (205) and respectively pass to the outside, near the plurality of rollers (201). The ends of the plurality of rollers (201) on one side of the driving device (4) are respectively connected to a gear box (207); a bottom bracket (204) is provided at the lower end of the gear box (207); transmission gears (208) are respectively fixedly connected to the side walls of the ends of the plurality of rollers (201) located inside the plurality of gear boxes (207); a plurality of coupling structures (206) are provided near one side of the plurality of transmission gears (208); and the plurality of coupling structures (206) are respectively connected to the gear box transmission device (5) on the output end of the driving device (4).

3. A self-lubricating fully enclosed graded environmentally friendly roller screen according to claim 2, characterized in that: A sealing cover (7) is provided at the upper end of the upper box body (205), and the sealing cover (7) and the upper box body (205) are connected via a plurality of fixing bolts.

4. The self-lubricating fully enclosed graded environmentally friendly roller screen according to claim 2, characterized in that: The blades (2011) on the side walls of every two adjacent rollers (201) are respectively distributed in a staggered manner.

5. The self-lubricating fully enclosed graded environmentally friendly roller screen according to claim 1, characterized in that: The driving device (4) is composed of a motor, a reducer and a coupling.

6. The self-lubricating fully enclosed graded environmentally friendly roller screen according to claim 1, characterized in that: The gear box transmission device (5) is composed of a motor, a reducer and a coupling.

7. The self-lubricating fully enclosed graded environmentally friendly roller screen according to claim 1, characterized in that: The materials of the roller (201) and the blade (211) are respectively a combination of wear-resistant castings or wear-resistant steel plates.

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