Gear shaft screen roller

Abstract

The utility model relates to the technical field of screening equipment, and discloses a gear shaft screening roller with a vibrating mechanism, which comprises an outer shell, a bearing seat is fixedly connected to the front side surface of the outer shell, a screening roller is fixedly connected to the back of the inner ring of the bearing seat, a waved plate is fixedly connected to the bottom surface of the outer shell, and a base is arranged on the bottom surface of the outer shell. An elastic part is fixedly connected to the upper surface of the base, limiting rods are fixedly connected to the front side and the rear side of the upper surface of the base, a fixing frame is arranged at the center of the upper surface of the base, a moving unit is arranged below the fixing frame, and a roller shaft is rotationally connected into the fixing frame. According to the vibrating screen, through cooperation of the wave plate, the base, the elastic piece, the limiting rod, the fixing frame, the moving unit and the roller shaft, impact force borne by the screening roller from materials can be buffered and counteracted, the service life of the vibrating screen is prolonged, meanwhile, the outer shell and the screening roller can be continuously driven to vibrate, and the screening speed of the materials is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of screening equipment, especially to a gear shaft screen roller with a vibrating mechanism. BACKGROUND

[0002] The gear shaft screen roller, also known as a roller screen, is mainly composed of parallel arranged roller shafts with sieve discs staggered thereon. This device is mainly used in the raw coal transportation system of coal mines to screen out sieve-up materials larger than the sieve hole in raw coal, and the materials smaller than the sieve hole directly fall into the system by their own gravity. It has a wide application in material pre-screening and product screening in coal mines, coal preparation plants, power plants, and wharfs.

[0003] According to the search, Chinese Patent Publication No. CN221934495U discloses a anti-blocking roller screen, which includes a outer box body and a conveying frame. The problem of material jamming during screening is solved. The front mounting bracket of the outer box body is fixed with an external drive motor, and the rear mounting bracket is fixed with another drive motor. When the two drive motors work, the rotational speeds are different, so that the movement speed of the material passing through the conveying frame is not uniform during work, and the material can move well in the outer box body, ensuring the uniformity of movement and preventing the material from being jammed on the conveying frame during screening.

[0004] However, the above-mentioned gear shaft screen roller has the problem that when a large amount of material falls onto the gear shaft screen roller, a large impact force is generated, which directly acts on the roller shaft, causing the connection between the roller shaft bearing seats to be at risk of bending and breaking, thereby affecting the service life of the roller screen. Therefore, a gear shaft screen roller with a vibrating mechanism is proposed to solve the above-mentioned problem. SUMMARY

[0005] To overcome the above shortcomings, the utility model provides a gear shaft screen roller with a vibrating mechanism, which aims to improve the problem that a large amount of material directly falling onto the gear shaft screen roller affects the service life of the gear shaft screen roller in the prior art.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a gear shaft screen roller with vibrating mechanism, including the outer casing, the front surface of the outer casing is fixedly connected with the bearing seat, the inner ring back of bearing seat is fixedly connected with the screening roller, the bottom of the outer casing is fixedly connected with the wave board, the bottom of the outer casing is provided with the base, the upper surface of the base is fixedly connected with the elastic piece, the upper surface of the base is fixedly connected with the limiting rod on both sides, the central place of the upper surface of the base is provided with the fixed frame, the lower of fixed frame is provided with the moving unit, the moving unit is used to drive the fixed frame to move linearly in the left and right directions, the inside rotation of fixed frame is connected with the roller shaft.

[0007] As further description of the above technical scheme:

[0008] The upper end of the elastic piece is fixedly connected with the bottom of the outer casing, and the size of the roller shaft is matched with the size of the wave groove at the bottom of the wave board.

[0009] As further description of the above technical scheme:

[0010] The moving unit includes a sliding groove and a lead screw, the sliding groove is opened on the upper surface of the base, the lead screw is rotatably connected to the right inner wall surface of the sliding groove, the outer side of the lead screw is threadedly connected with a sliding block, and the left side surface of the base is fixedly connected with a motor.

[0011] As further description of the above technical scheme:

[0012] The sliding block is slidably connected with the inside of the sliding groove, and the upper surface of the sliding block is fixedly connected with the bottom of the fixed frame.

[0013] As further description of the above technical scheme:

[0014] The right output end of the motor penetrates through the base, and the right output end of the motor is fixedly connected with the left end of the lead screw.

[0015] As further description of the above technical scheme:

[0016] The bottom end of the sliding groove is provided in an open structure, the bottom of the base is fixedly connected with an inclined guide groove, the left end of the bottom of the base is fixedly connected with a placement box, and the inside of the placement box is inserted with a collection box.

[0017] As further description of the above technical scheme:

[0018] The inclined guide groove is located directly below the sliding groove.

[0019] As further description of the above technical scheme:

[0020] The collection box is located directly below the left end of the inclined guide groove.

[0021] The utility model has the advantages of the following:

[0022] 1. The utility model discloses a wave board, base, elastic piece, limiting rod, fixed frame, mobile unit and the cooperation of roller shaft can buffer and offset the impact force of the material on the screening roller, prolong the service life of the device, and can continuously drive the shell and the screening roller to vibrate, accelerate the screening rate of the material, and when the material is too much to exceed the rebound limit of the elastic piece, continuously push the shell, make the shell continue to vibrate in the up-down direction, and accelerate the screening rate of the material.

[0023] 2. The utility model discloses the cooperation of inclined guide slot, placing box and collection box can quickly guide and discharge the dust and impurities falling into the chute, and collect them, avoid the dust and impurities from accumulating in the chute and affecting the movement of the sliding block, and can quickly disassemble and clean the collection box full of dust and impurities, which is simple to operate. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 It is a schematic view of the overall gear shaft screening roller with a vibrating mechanism.

[0025] Fig. 2 It is a schematic view of the bottom surface of the shell of the gear shaft screening roller with a vibrating mechanism.

[0026] Fig. 3 It is a schematic view of the base, elastic piece, limiting rod, fixed frame, mobile unit and roller shaft of the gear shaft screening roller with a vibrating mechanism.

[0027] Fig. 4 It is a schematic view of the base, elastic piece, limiting rod and mobile unit of the gear shaft screening roller with a vibrating mechanism.

[0028] Fig. 5 It is a schematic view of the bottom surface of the base of the gear shaft screening roller with a vibrating mechanism.

[0029] LEGEND:

[0030] 1, shell; 2, bearing seat; 3, screening roller; 4, wave board; 5, base; 6, elastic piece; 7, limiting rod; 8, fixed frame; 81, chute; 82, lead screw; 83, sliding block; 84, motor; 9, roller shaft; 10, inclined guide slot; 11, placing box; 12, collection box. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present utility model.

[0032] With reference to Figs. 1-2 The utility model provides an embodiment: a gear shaft screen roller with vibration mechanism, including shell body 1, the front surface fixed connection of shell body 1 has bearing seat 2, the inner ring back of bearing seat 2 is fixedly connected with screening roller 3, the front side of bearing seat 2 can be connected speed reducer, the rotation of screening roller 3 is driven through speed reducer, the screening roller 3 is equipped with screen disc alternately, the rotation direction of screening roller 3 is same with material flow direction, screening roller 3 is arranged according to different working angles, and the speed of material is faster when running at the position of higher working angle, and the speed is more gentle when running at the position of lower working angle, and the material under two different speeds starts axial movement when converging at a position of screen surface, so that the material is evenly distributed on the screen surface, and the purpose of improving screening efficiency is achieved, and the above structure is prior art means in the field, which is not repeated here, the bottom surface of shell body 1 is fixedly connected with wave plate 4, shell body 1 can drive wave plate 4 to move synchronously when moving, and the bottom surface of shell body 1 is provided with base 5.

[0033] With reference to Figs. 2-4 The upper surface of base 5 is fixedly connected with elastic member 6, the upper end of elastic member 6 is fixedly connected with the bottom surface of shell body 1, when material falls into the inside of shell body 1 and falls above screening roller 3, screening roller 3 and shell body 1 are extruded downward, so as to drive shell body 1 to move downward and extrude elastic member 6, so that elastic member 6 is compressed to generate elastic potential energy to buffer and offset the impact force suffered by screening roller 3, and shell body 1 and screening roller 3 are continuously vibrated, the upper surface of base 5 is fixedly connected with limiting rod 7 on the front and back sides, limiting rod 7 can limit the descending distance of shell body 1, to avoid shell body 1 from descending beyond the limit of elastic member 6, so as to cause the damage of elastic member 6.

[0034] The upper surface of the base 5 is provided with a fixing frame 8, and a moving unit is arranged below the fixing frame 8. The moving unit comprises a sliding groove 81 and a lead screw 82. The sliding groove 81 is arranged on the upper surface of the base 5, and the lead screw 82 is rotatably connected to the inner wall surface of the right side of the sliding groove 81. The outer side of the lead screw 82 is threadedly connected with a sliding block 83. When the lead screw 82 rotates, the sliding block 83 can be driven to move synchronously. The sliding block 83 is slidably connected to the inside of the sliding groove 81. The sliding groove 81 can guide and limit the movement of the sliding block 83, so that the sliding block 83 can only move linearly in the left-right direction. The upper surface of the sliding block 83 is fixedly connected with the bottom surface of the fixing frame 8. When the sliding block 83 moves, the fixing frame 8 can be driven to move synchronously. The left side surface of the base 5 is fixedly connected with a motor 84. The right side output end of the motor 84 penetrates through the base 5, and the right side output end of the motor 84 is fixedly connected with the left end of the lead screw 82. When the motor 84 starts, the lead screw 82 can be driven to move synchronously. When the motor 84 starts to drive the lead screw 82 to rotate, the sliding block 83 can move linearly in the left-right direction under the limitation of the sliding groove 81, so as to drive the fixing frame 8 to move linearly in the left-right direction.

[0035] The inside of the fixing frame 8 is rotatably connected with a roller shaft 9. When the fixing frame 8 moves, the roller shaft 9 can move synchronously. The size of the roller shaft 9 is matched with the size of the wave groove on the bottom surface of the wave plate 4. When the outer shell 1 is pressed to be lowered to be attached to the limiting rod 7, the roller shaft 9 can enter the wave groove on the bottom surface of the wave plate 4. When the material continuously falls and the outer shell 1 cannot rebound under the elastic potential energy of the elastic member 6, the motor 84 can be started to drive the fixing frame 8 and the roller shaft 9 to move linearly in the left-right direction. During the movement of the roller shaft 9, the wave plate 4 and the outer shell 1 can be lifted intermittently along the fluctuation of the wave groove on the bottom surface of the wave plate 4. The outer shell 1 can continue to vibrate in the up-down direction under the pushing of the roller shaft 9, so as to accelerate the screening rate of the material. Meanwhile, the material can be prevented from exceeding the rebound limit of the elastic member 6, so as to avoid the vibration effect.

[0036] Referring to Figs. 4-5The bottom end of the sliding groove 81 is provided in an open structure, and the dust and impurities entering the inside of the sliding groove 81 can be discharged through the bottom end of the sliding groove 81, so that the accumulation of dust and impurities in the inside of the sliding groove 81 can be avoided to affect the movement of the sliding block 83. The bottom surface of the base 5 is fixedly connected with an inclined guide groove 10 located directly below the sliding groove 81. The dust and impurities discharged through the bottom end of the sliding groove 81 can enter the inclined guide groove 10 and slide along the inclined surface of the bottom of the inclined guide groove 10 to the left end. The bottom surface of the base 5 is fixedly connected with a placing box 11, and the placing box 11 is inserted with a collecting box 12 located directly below the left end of the inclined guide groove 10. The dust and impurities sliding along the inclined surface of the inclined guide groove 10 can enter the collecting box 12 to complete the collection. When the inside of the collecting box 12 is full, the staff can directly take the collecting box 12 for convenient disassembly and cleaning.

[0037] Working principle: When the material falls into the outer shell 1, it will extrude the screening roller 3 when falling above the screening roller 3, thereby driving the outer shell 1 to descend to extrude the elastic element 6, so that the elastic element 6 is compressed to generate elastic potential energy, which buffers and offsets the impact force borne by the screening roller 3, prolongs the service life of the screening roller 3, and continuously drives the outer shell 1 and the screening roller 3 to vibrate, thereby accelerating the screening rate of the material. When the impact force is large due to too much material, the outer shell 1 stops moving when it is attached to the limiting rod 7, thereby avoiding damage to the elastic element 6 caused by descending beyond the limit of the elastic element 6. If the material continues to be added and the outer shell 1 cannot rebound under the elastic potential energy of the elastic element 6, the motor 84 can be started to drive the lead screw 82 to rotate, thereby driving the fixed frame 8 and the roller shaft 9 to move reciprocatingly in the left-right direction under the limitation of the sliding groove 81, so that the outer shell 1 can continue to vibrate in the up-down direction under the pushing of the roller shaft 9, thereby accelerating the screening rate of the material and improving the screening rate of the material.

[0038] Finally, it should be noted that the above-described preferred embodiments of the present application are not intended to limit the present application, and although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or equivalently replace some of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A gear shaft screen roller comprising an outer housing (1), characterized in that: The front surface of the outer shell (1) is fixedly connected with a bearing seat (2), the inner ring back surface of the bearing seat (2) is fixedly connected with a screening roller (3), the bottom surface of the outer shell (1) is fixedly connected with a wave plate (4), the bottom surface of the outer shell (1) is provided with a base (5), the upper surface of the base (5) is fixedly connected with an elastic piece (6), the upper surface of the base (5) is fixedly connected with a limiting rod (7) on the left and right sides, the center of the upper surface of the base (5) is provided with a fixing frame (8), the lower part of the fixing frame (8) is provided with a moving unit, the moving unit is used to drive the fixing frame (8) to move linearly in the left-right direction, and the inside of the fixing frame (8) is rotatably connected with a roller shaft (9).

2. A gear shaft screen roller as defined in claim 1, wherein: The upper end of the elastic piece (6) is fixedly connected with the bottom surface of the outer shell (1), and the size of the roller shaft (9) is matched with the size of the wave groove in the bottom surface of the wave plate (4).

3. A gear shaft screen roller as defined in claim 1 wherein: The moving unit comprises a sliding groove (81) and a lead screw (82), the sliding groove (81) is formed in the upper surface of the base (5), the lead screw (82) is rotatably connected to the right inner wall surface of the sliding groove (81), the outer side of the lead screw (82) is threadedly connected with a sliding block (83), and the left side surface of the base (5) is fixedly connected with a motor (84).

4. A gear shaft screen roller as defined in claim 3 wherein: The sliding block (83) is slidably connected with the inside of the sliding groove (81), and the upper surface of the sliding block (83) is fixedly connected with the bottom surface of the fixing frame (8).

5. A gear shaft screen roller as defined in claim 3 wherein: The right output end of the motor (84) penetrates through the base (5), and the right output end of the motor (84) is fixedly connected with the left end of the lead screw (82).

6. A gear shaft screen roller as defined in claim 3 wherein: The bottom end of the sliding groove (81) is provided in an open structure, the bottom surface of the base (5) is fixedly connected with an inclined guide groove (10), the bottom surface of the base (5) is fixedly connected with a placing box (11) on the left end, and the inside of the placing box (11) is inserted with a collecting box (12).

7. A gear shaft screen roller as defined in claim 6 wherein: The inclined guide groove (10) is located directly below the sliding groove (81).

8. A gear shaft screen roller as defined in claim 6 wherein: The collecting box (12) is located directly below the left end of the inclined guide groove (10).

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