Limiting device for belt conveyor

Abstract

The limiting device comprises a base and a conveying belt, two sets of symmetrically-distributed installation bases are arranged above the base, a sliding rod is arranged in the base, moving blocks are fixedly installed below the installation bases, the installation bases are connected with the base in a sliding mode through the moving blocks, the moving blocks are connected with the sliding rod in a sliding and sleeved mode, and the conveying belt is arranged on the base. The sliding rods are sleeved with springs, the base is provided with two sets of cams distributed corresponding to the moving blocks, the mounting base is internally provided with multiple sets of moving bases distributed at equal intervals, the multiple sets of moving bases are provided with rollers, the rollers are rotationally connected with the moving bases, and the rollers are attached to the two sides of the conveying belt. The cam and the spring are matched with the mounting base and the roller on the mounting base to limit the conveying belt and push the conveying belt leftwards and rightwards in a small range, the conveying direction of the conveying belt is limited, materials on the conveying belt are assisted to be evenly distributed, and the problem that the conveying belt deviates due to uneven distribution of the materials is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of belt conveyors, in particular to a position-limiting device for a belt conveyor. Background Technique

[0002] During the process of conveying materials by a belt conveyor, the phenomenon of belt deviation often occurs, especially for long-distance conveying. The main reason is the uneven distribution of materials on the conveyor belt. A large belt deviation is likely to cause wear on both sides of the belt, and the belt will break after long-term operation.

[0003] In the prior art, V-shaped brackets and retaining pins are mostly used to limit the position of the belt. The positions of the brackets and retaining pins are fixed. When the materials on the belt are unevenly distributed and cause the belt to deviate, the existing position-limiting device cannot help the conveyor belt return to its original position. During the belt transmission process, the deviated side of the belt always rubs against the position-limiting mechanism, which will also cause uneven wear on both sides of the belt. Content of the Utility Model

[0004] The purpose of the utility model is to provide a position-limiting device for a belt conveyor to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A position-limiting device for a belt conveyor, including a base and a conveyor belt. There are two groups of symmetrically distributed mounting seats above the base. A sliding rod is arranged in the base. A moving block is fixedly installed below the mounting seat. The mounting seat is slidably connected to the base through the moving block. The moving block is slidably sleeved on the sliding rod. A spring is sleeved on the sliding rod. Both ends of the spring are fixedly connected to the moving block and the base respectively. There are two groups of cams corresponding to the moving blocks distributed on the base. There are multiple groups of equidistantly distributed moving seats in the mounting seat. All the multiple groups of moving seats are slidably connected to the mounting seat. Rollers are arranged on all the multiple groups of moving seats. The rollers are rotatably connected to the moving seats. The rollers are attached to both sides of the conveyor belt. An installation rod is arranged on the base. The installation rod is located above the conveyor belt. A limiting ring is fixedly installed above the installation rod. A rotating rod is arranged in the base. The rotating rod is rotatably connected to the base through a rotating shaft. The rotating rod is slidably connected to the limiting ring through a support rod. An adjusting rod is arranged in the installation rod. A scraper is rotatably installed below the adjusting rod. A torsion spring is sleeved on the adjusting rod. Both ends of the torsion spring are fixedly connected to the scraper and the adjusting rod respectively.

[0006] As a further preferred of this technical solution, both groups of cams are rotatably connected to the base through rotating shafts. Both groups of cams are attached to the moving blocks. Synchronous wheels are installed on both groups of cams. A synchronous belt is arranged in the base. The synchronous belt is respectively in transmission connection with the two groups of synchronous wheels.

[0007] As a further preferable embodiment of the present technical solution, two sets of symmetrically distributed bidirectional lead screws are provided inside the mounting base. Transmission wheels are sleeved on both sets of bidirectional lead screws. A transmission belt is provided inside the mounting base, and the transmission belt is respectively in driving connection with the two transmission wheels. Two sets of cross-distributed connecting rods are provided between adjacent pairs of moving seats.

[0008] As a further preferable embodiment of the present technical solution, both ends of the two sets of bidirectional lead screws respectively penetrate through the mounting base and are rotatably connected to the mounting base. The two sets of bidirectional lead screws respectively penetrate through the two moving seats located on both sides and are respectively in threaded connection with the two moving seats.

[0009] As a further preferable embodiment of the present technical solution, second sliders are provided between the two sets of connecting rods. The two sets of connecting rods are respectively rotatably connected to the second sliders through rotating shafts. First sliders are rotatably installed at both ends of the two sets of connecting rods. The second sliders are slidably connected to the mounting base, and the first sliders are slidably connected to the moving seats.

[0010] As a further preferable embodiment of the present technical solution, the adjusting rod is slidably connected to the mounting rod. A screw rod is provided inside the mounting rod. The upper end of the screw rod penetrates through the mounting rod and is rotatably connected to the mounting rod through a bearing. The lower end of the screw rod penetrates through the adjusting rod and is in threaded connection with the adjusting rod.

[0011] The utility model provides a limiting device for a belt conveyor, which has the following beneficial effects:

[0012] (1) The utility model realizes the limitation of the conveyor belt and the small left and right pushing of the conveyor belt by the cam, spring, mounting seat and roller on the mounting seat, which limit the transmission direction of the conveyor belt and assist the uniform distribution of materials on the conveyor belt, thereby reducing the problem of belt deviation caused by uneven material distribution. At the same time, the distance between the moving seat and the roller can be adjusted equidistantly to be suitable for conveyor belts of different lengths, effectively expanding the application range of the limiting device. When in use, the motor in the mounting seat is started according to the actual conveying length of the conveyor belt to drive the rotation of the bidirectional screw rod, and the two groups of bidirectional screw rods are rotated synchronously under the action of the transmission belt and the transmission wheel, and the two groups of moving seats on both sides are synchronously rotated under the limiting action of the mounting seat. The two sets of moving seats move in pairs, and the two sets of moving seats move in coordination with the two-section rod set between adjacent moving seats and the first slider and the second slider so that multiple sets of moving seats can be equidistantly varied in pitch to suit conveyor belts with different conveying lengths. During the use of the conveyor belt, the motor in the mounting seat is started to drive the cam to rotate. Under the action of the synchronous belt and the synchronous wheel, the two sets of cams rotate synchronously and push the moving block fitted therewith. During the sliding process of the moving block, the spring on the slide bar is compressed and stretched. With the elastic potential energy of the spring, the moving block drives the mounting seat to slide left and right on the base, and the conveyor belt is shaken slightly on both sides of the conveyor belt through the roller, so that the conveyor belt drives the material above to shake left and right, and the uniformity of material distribution is maintained while the position of the conveyor belt is limited.

[0013] (2) The utility model realizes the left and right shifting of materials on the conveyor belt through the provided mounting rod, adjusting rod and scraper, thereby reducing the problem of more material accumulation in some positions and less material accumulation in other positions, and assisting the mounting seat, moving seat and roller to maintain the uniformity of material distribution during material transportation; starting the motor to drive the screw to rotate according to the actual material size, adjusting the position of the adjusting rod under the limiting action of the mounting rod, starting the motor to drive the rotating rod to rotate, and during the rotation of the rotating rod, the limiting ring and the mounting rod slidably connected thereto are driven to slide left and right on the base, thereby causing the scraper to slide left and right on the conveyor belt, and during the sliding process, the scraper contacts the material, pushing the more material in some positions to other positions, thereby improving the uniformity of material distribution on the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the mounting seat of the utility model;

[0016] Figure 3 For the utility model Figure 2 -A magnified view of the structure;

[0017] Figure 4 It is a structural schematic diagram of the mobile seat of the utility model;

[0018] Figure 5 This is a schematic structural diagram of the scraper of the present utility model;

[0019] In the figure: 1, base; 2, conveyor belt; 3, mounting seat; 4, moving block; 5, slide bar; 6, spring; 7, cam; 8, synchronous pulley; 9, synchronous belt; 10, moving seat; 11, roller; 12, bidirectional lead screw; 13, driving wheel; 14, transmission belt; 15, connecting rod; 16, first slider; 17, second slider; 18, mounting rod; 19, limiting ring; 20, rotating rod; 21, adjusting rod; 22, screw; 23, scraper; 24, torsion spring. Specific embodiments

[0020] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0021] The present utility model provides the following technical solutions: As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4As shown in the figure, in this embodiment, a limiting device for a belt conveyor includes a base 1 and a conveyor belt 2. There are two groups of symmetrically distributed mounting seats 3 above the base 1. A sliding rod 5 is arranged inside the base 1. A moving block 4 is fixedly installed below the mounting seat 3. The mounting seat 3 is slidably connected to the base 1 through the moving block 4. The moving block 4 is slidably sleeved on the sliding rod 5. A spring 6 is sleeved on the sliding rod 5. The two ends of the spring 6 are respectively fixedly connected to the moving block 4 and the base 1. There are two groups of cams 7 corresponding to the moving blocks 4 distributed on the base 1. There are multiple groups of equally spaced moving seats 10 arranged inside the mounting seat 3. The multiple groups of moving seats 10 are all slidably connected to the mounting seat 3. Rollers 11 are arranged on the multiple groups of moving seats 10. The rollers 11 are rotatably connected to the moving seats 10. The rollers 11 are in contact with both sides of the conveyor belt 2. An installation rod 18 is arranged on the base 1. The installation rod 18 is located above the conveyor belt 2. A limiting ring 19 is fixedly installed above the installation rod 18. A rotating rod 20 is arranged inside the base 1. The rotating rod 20 is rotatably connected to the base 1 through a rotating shaft. The rotating rod 20 is slidably connected to the limiting ring 19 through a support rod. An adjusting rod 21 is arranged inside the installation rod 18. A scraping plate 23 is rotatably installed below the adjusting rod 21. A torsion spring 24 is sleeved on the adjusting rod 21. The two ends of the torsion spring 24 are respectively fixedly connected to the scraping plate 23 and the adjusting rod 21. The two groups of cams 7 are both rotatably connected to the base 1 through rotating shafts. The two groups of cams 7 are both in contact with the moving blocks 4. Synchronous wheels 8 are installed on the two groups of cams 7. A synchronous belt 9 is arranged inside the base 1. The synchronous belt 9 is respectively in transmission connection with the two groups of synchronous wheels 8. Two groups of symmetrically distributed bidirectional lead screws 12 are arranged inside the mounting seat 3. Transmission wheels 13 are sleeved on the two groups of bidirectional lead screws 12. A transmission belt 14 is arranged inside the mounting seat 3. The transmission belt 14 is respectively in transmission connection with the two groups of transmission wheels 13. Two groups of cross-distributed connecting rods 15 are arranged between adjacent two groups of moving seats 10. The two ends of the two groups of bidirectional lead screws 12 respectively penetrate through the mounting seat 3 and are rotatably connected to the mounting seat 3. The two groups of bidirectional lead screws 12 respectively penetrate through the two groups of moving seats 10 located on both sides and are respectively in threaded connection with the two groups of moving seats 10. Second sliders 17 are arranged between the two groups of connecting rods 15. The two groups of connecting rods 15 are both rotatably connected to the second sliders 17 through rotating shafts. First sliders 16 are rotatably installed at both ends of the two groups of connecting rods 15. The second sliders 17 are slidably connected to the mounting seat 3. The first sliders 16 are both slidably connected to the moving seats 10.

[0022] Through the cooperation of the cams 7 and the springs 6, the mounting seat 3 and the rollers 11 on the mounting seat 3, the limiting and small left - right pushing of the conveyor belt 2 are realized. While restricting the conveying direction of the conveyor belt 2, it helps the materials on the conveyor belt 2 to be evenly distributed, reducing the problem of belt deviation caused by uneven material distribution on the conveyor belt 2. At the same time, the distance between the moving seat 10 and the roller 11 can be adjusted equidistantly to be applicable to conveyor belts 2 of different lengths, effectively expanding the applicable range of the limiting device.

[0023] Such as Figure 1 AndFigure 5 As shown, the adjusting rod 21 is slidably connected to the mounting rod 18, and a screw rod 22 is provided inside the mounting rod 18. The upper end of the screw rod 22 passes through the mounting rod 18 and is rotatably connected to the mounting rod 18 through a bearing, and the lower end of the screw rod 22 passes through the adjusting rod 21 and is threadedly connected to the adjusting rod 21.

[0024] The materials on the conveyor belt 2 are shifted left and right by the provided mounting rod 18, adjusting rod 21 and scraper 23, so as to reduce the problem of more material accumulation in some positions and less material accumulation in other positions, and to assist the mounting seat 3, movable seat 10 and roller 11 in maintaining the uniformity of material distribution during material transportation; the motor is started to drive the screw 22 to rotate according to the actual material size, and the position of the adjusting rod 21 is adjusted under the limiting action of the mounting rod 18, and the motor is started to drive the rotating rod 20 to rotate. During the rotation of the rotating rod 20, the limiting ring 19 and the mounting rod 18 slidably connected thereto are driven to slide left and right on the base 1, thereby making the scraper 23 slide left and right on the conveyor belt 2, and during the sliding process, the scraper 23 contacts with the material, and pushes the more material in some positions to other positions, thereby improving the uniformity of material distribution on the conveyor belt 2.

[0025] The utility model provides a limiting device for a belt conveyor, and the specific working principle is as follows: when in use, the motor in the mounting seat 3 is started according to the actual conveying length of the conveyor belt 2 to drive the rotation of the bidirectional screw rod 12, and under the action of the transmission belt 14 and the transmission wheel 13, the two groups of bidirectional screw rods 12 are synchronously rotated, and under the limiting action of the mounting seat 3, the two groups of moving seats 10 on both sides are synchronously moved, and the two groups of moving seats 10 move and cooperate with the two sections of rods and the first slider 16 and the second slider 17 set between the adjacent moving seats 10 to make multiple groups of moving seats 10 equidistantly change the distance, so as to be suitable for conveyor belts 2 with different conveying lengths. During the use of the conveyor belt 2, the motor in the mounting seat 3 is started to drive the cam 7 to rotate, and under the action of the synchronous belt 9 and the synchronous wheel 8, the two groups of cams 7 rotate synchronously and push the moving block 4 that is in contact with it. During the sliding process of the moving block 4, the elastic force on the slide bar 5 is exerted on the elastic force on the slide bar 5. The spring 6 is compressed and stretched, and the elastic potential energy of the spring 6 is cooperated with the moving block 4 to drive the mounting seat 3 to slide left and right on the base 1, and the conveyor belt 2 is slightly shaken on both sides of the conveyor belt 2 through the roller 11, so that the conveyor belt 2 drives the upper material to shake left and right, and the uniformity of material distribution is maintained while limiting the position of the conveyor belt 2. According to the actual material size, the motor is started to drive the screw rod 22 to rotate, and the position of the adjusting rod 21 is adjusted under the limiting action of the mounting rod 18. The motor is started to drive the rotating rod 20 to rotate. During the rotation of the rotating rod 20, the limiting ring 19 and the mounting rod 18 slidably connected thereto are driven to slide left and right on the base 1, thereby causing the scraper 23 to slide left and right on the conveyor belt 2. During the sliding process, the scraper 23 contacts with the material, and pushes the material with more in some positions to other positions, thereby adjusting the uniformity of material distribution on the position conveyor belt 2.

[0026] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A limiting device for a belt conveyor, comprising a base (1) and a conveyor belt (2), characterized in that: Two groups of symmetrically distributed mounting seats (3) are arranged above the base (1), a sliding rod (5) is arranged inside the base (1), a moving block (4) is fixedly installed below the mounting seat (3), the mounting seat (3) is slidably connected to the base (1) through the moving block (4), the moving block (4) is slidably sleeved with the sliding rod (5), a spring (6) is sleeved on the sliding rod (5), the two ends of the spring (6) are respectively fixedly connected to the moving block (4) and the base (1), two groups of cams (7) corresponding to the moving blocks (4) are arranged on the base (1), a plurality of equidistantly distributed moving seats (10) are arranged inside the mounting seat (3), the plurality of moving seats (10) are all slidably connected to the mounting seat (3), the plurality of moving seats (10) are all provided with rollers (11), the rollers ( 11) is rotatably connected with the movable seat (10), the roller (11) is fitted with both sides of the conveyor belt (2), a mounting rod (18) is provided on the base (1), the mounting rod (18) is located above the conveyor belt (2), a limit ring (19) is fixedly installed above the mounting rod (18), a rotating rod (20) is provided in the base (1), the rotating rod (20) is rotatably connected with the base (1) through a rotating shaft, the rotating rod (20) is slidably connected with the limit ring (19) through a supporting rod, an adjusting rod (21) is provided in the mounting rod (18), a scraper (23) is rotatably installed below the adjusting rod (21), a torsion spring (24) is sleeved on the adjusting rod (21), and the two ends of the torsion spring (24) are respectively fixedly connected with the scraper (23) and the adjusting rod (21).

2. A limiting device for a belt conveyor according to claim 1, characterized in that: The two groups of cams (7) are rotatably connected to the base (1) via a rotating shaft, the two groups of cams (7) are in contact with the moving block (4), and synchronous wheels (8) are installed on the two groups of cams (7). A synchronous belt (9) is provided in the base (1), and the synchronous belt (9) is respectively connected to the two groups of synchronous wheels (8) in a transmission manner.

3. A limiting device for a belt conveyor according to claim 1, characterized in that: Two groups of symmetrically distributed bidirectional screw rods (12) are arranged in the mounting seat (3), and transmission wheels (13) are sleeved on the two groups of bidirectional screw rods (12). A transmission belt (14) is arranged in the mounting seat (3), and the transmission belt (14) is respectively connected to the two groups of transmission wheels (13) in transmission. Two groups of cross-distributed connecting rods (15) are arranged between two adjacent groups of movable seats (10).

4. A limiting device for a belt conveyor according to claim 3, characterized in that: The two ends of the two groups of bidirectional screw rods (12) respectively penetrate the mounting seat (3) and are rotatably connected to the mounting seat (3); the two groups of bidirectional screw rods (12) respectively penetrate the two groups of movable seats (10) located on both sides and are threadedly connected to the two groups of movable seats (10).

5. A limiting device for a belt conveyor according to claim 3, characterized in that: A second slider (17) is provided between the two groups of connecting rods (15), and the two groups of connecting rods (15) are rotatably connected to the second slider (17) via a rotating shaft. First sliders (16) are rotatably installed at both ends of the two groups of connecting rods (15), and the second sliders (17) are slidably connected to the mounting seat (3), and the first sliders (16) are slidably connected to the moving seat (10).

6. A limiting device for a belt conveyor according to claim 1, characterized in that: The adjusting rod (21) is slidably connected to the mounting rod (18); a screw rod (22) is arranged inside the mounting rod (18); the upper end of the screw rod (22) passes through the mounting rod (18) and is rotatably connected to the mounting rod (18) via a bearing; the lower end of the screw rod (22) passes through the adjusting rod (21) and is threadedly connected to the adjusting rod (21).

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