Sunken arc-shaped circular tube cross beam carrier roller set

Abstract

The utility model relates to the technical field of belt conveyors, and discloses a sunken arc-shaped circular tube cross beam carrier roller set which comprises a plurality of rollers, the rollers are arranged along a cross beam, and the cross beam is fixedly connected with middle frames on the two sides. The bottom of the cross beam is lower than the bottom of the middle frame. The utility model has the beneficial effects of good bending resistance, adjustable theoretical belt surface height, firm roller fixation, high bolt perforation rate, good rigidity and stability and convenience in observation and maintenance.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of belt conveyer, especially to a sinking arc-shaped round pipe beam carrier roller set. BACKGROUND

[0002] The belt conveyer is also called the conveyer belt conveyer, is a kind of friction drive to transport material in continuous mode, mainly by rack, conveyer belt, roller, drum, tensioning device and transmission device composition.Belt conveyer forms a kind of material conveying flow between the initial feeding point and the final discharging point on a certain conveying line.Because belt conveyer has strong conveying capacity, long conveying distance, simple structure and easy maintenance, can conveniently implement programmed control and automatic operation.

[0003] The main beam of the carrier roller set of the existing standard type belt conveyer adopts angle steel structure (such as the large-belt-width slot type carrier roller set in the <<DTII (A) type belt conveyer design manual >>), which has the following defects:

[0004] 1. Poor bending resistance: the deflection of the slot type angle steel beam is significantly insufficient under the condition of large belt width and large conveying capacity, so the material consumption of the entire carrier roller frame needs to be increased significantly, resulting in the increase of weight and cost.

[0005] 2. Belt surface height is not adjustable: the carrier roller frame cannot adjust the theoretical belt surface height.

[0006] 3. Low tolerance rate of installation hole deviation of middle frame: the installation hole of the middle frame is usually extended along the conveying direction and designed as a fixed size or shape, so the installation hole length and width direction deviation cannot be adapted during actual installation, which easily leads to low bolt hole rate and requires high manufacturing precision;and the side guard roller installation hole is not reserved, which is not conducive to the expansion of later preventive measures.

[0007] 4. Poor roller fixation: the clamping groove structure for installing the roller has no clamping plate limiting, and the roller shaft is easily detached under impact.

[0008] 5. Insufficient rigidity and stability: the carrier roller set is usually arranged above the beam, the beam is fixed above the middle frame, and the outer end of the side roller is fixed with the beam through the side support column, so the height of the side support column is high, the rigidity of the side support column is poor, and when the belt surface width increases, the height of the side support column also needs to be increased, the rigidity of the side support column decreases, which easily leads to beam deformation and belt deviation.

[0009] 6. Inconvenient maintenance: the center of the theoretical belt surface height is too high, which affects observation and maintenance. UTILITY MODEL CONTENT

[0010] In order to overcome the problems in the prior art, the utility model provides a sinking type arc-shaped round pipe beam roller set which has the beneficial effects of good bending resistance, adjustable theoretical belt surface height, firm roller fixing, high bolt perforation rate, good rigidity and stability and convenient observation and maintenance.

[0011] The technical scheme of the utility model is as follows:

[0012] A sinking type arc-shaped round pipe beam roller set, comprising a plurality of rollers, the rollers being arranged along a beam, the beam being fixedly connected with middle frames on both sides; the beam is of an arc-shaped round pipe structure and the bottom thereof is lower than the bottom of the middle frames.

[0013] Preferably, the beam is connected with the middle frames through side support columns and side support bases, the side support bases comprising horizontal blocks and vertical blocks which are integrally connected and perpendicular to each other, wherein the horizontal blocks are fixedly connected with the surfaces of the middle frames in parallel, and the vertical blocks are fixedly connected with the side support columns in parallel.

[0014] Further preferably, the upper portions of the side support columns are inclined to the inner sides of the middle frames, and the inner side surfaces thereof are fixedly connected with the end portions of the beam.

[0015] Further preferably, the side support columns and / or the side support bases are provided with adjusting holes, the adjusting holes being vertical long holes, the side support bases and the side support columns being adaptively adjusted in height along the connecting surfaces to adjust the theoretical belt surface height, and being fixedly connected through fixing members matched with the adjusting holes.

[0016] Further preferably, the connecting portions of the middle frames and the side support bases on both sides are respectively provided with mounting holes, wherein the mounting holes on one side are arranged along the running direction, and the mounting holes on the other side are perpendicular to the running direction, and the fixing members pass through the mounting holes on both sides to fix the middle frames and the side support bases.

[0017] Further preferably, the side portions of the side support columns are further provided with side mounting holes, the side mounting holes being used for mounting side blocking rollers.

[0018] Preferably, the roller set comprises three rollers, the three rollers being arranged in a "pin" shape on both sides of the beam and being arranged in parallel with the beam.

[0019] Further preferably, the rollers are arranged on the beam through lugs at both ends, the lug at one end of the roller is provided with a recess, a clamping plate being detachably fixed on the upper portion of the recess and abutting against the side surface of the lug, the clamping plate and the recess forming a clamping hole, and one end of a roller shaft extending into the clamping hole; the lug at the other end of the roller is provided with a through hole, and the other end of the roller shaft extending into the through hole.

[0020] Further preferably, the lugs are fixedly welded on the beam, and all the lugs are arranged in a center line symmetry along the length direction of the beam.

[0021] Further preferably, the front inclination angle β3 of the roller group ranges from 1° to 2°, and the side inclination angle β2 is 35° or 45°; the radius R of the crossbeam ranges from 400 mm to 1200 mm, and the central angle β1 ranges from 90° to 120°.

[0022] Compared with the prior art, the above technical solution has the following beneficial effects:

[0023] (1) Since the crossbeam is an arc-shaped pipe structure, and the bottom of the crossbeam is lower than the bottom of the intermediate frame, the theoretical belt surface height can be close to the height of the intermediate frame, the theoretical belt surface height is reduced, and the observation and maintenance are more convenient. In addition, the rigidity and stability of the roller frame as a whole are enhanced, and the deviation and damage of the conveying belt are effectively prevented.

[0024] (2) Compared with the existing channel-shaped angle steel crossbeam, the crossbeam with an arc-shaped structure has higher deflection and better bending resistance, and the overall weight (the weight is reduced by more than 15%-20%) and manufacturing cost of the roller frame can be reduced, and the material usage is not increased significantly, thereby reducing the weight and cost.

[0025] (3) Since the two ends of the crossbeam are fixed to the side support columns, and the crossbeam is an arc-shaped structure, the bottom of the crossbeam is lower than the bottom of the intermediate frame. Therefore, the side support columns can support and fix the crossbeam, and the height of the side support columns can be reduced. Even when the width of the belt surface of the crossbeam is increased, the height of the side support columns does not need to be increased significantly. The height of the side support columns of this structure is reduced by 30%-40% compared with the height of the side support columns of the existing angle steel crossbeam roller group. The rigidity of the side support columns is better, and the stability of the roller frame is also better. The deformation of the crossbeam and the deviation of the conveying belt are not easily caused. In addition, reducing the height of the side support columns can also reduce the material usage of the entire roller frame, thereby saving the manufacturing cost.

[0026] (3) By arranging the adjusting holes vertically in the side support columns and / or the side support bases, the side support bases and the side support columns can move up and down along the connecting surface, and the theoretical belt surface height of the roller group can be adjusted.

[0027] (4) Since the mounting holes on both sides of the intermediate frame and the side support bases are arranged to be perpendicular to each other, the positions of the mounting holes can be adjusted from different directions (two coordinate axis directions) during actual installation. The problem of mounting hole deviation is solved, the problem of low bolt hole rate caused by the mounting hole deviation of the side support bases and the intermediate frame is reduced, the bolt hole rate is improved by more than 50%, and the bolt hole rate is improved.

[0028] (5) By reserving the side mounting holes in the side of the side support columns, the side guard rollers can be conveniently added.

[0029] (6) Since one end of the roller shaft extends into the clamping hole formed by the detachably fixed lug and the clamping plate, and the other end extends into the through hole of the lug, the roller can be prevented from falling off when the roller is impacted, and the connection of the roller is firm. BRIEF DESCRIPTION OF DRAWINGS

[0030] The utility model will be explained in the mode of referring to the drawings, wherein,

[0031] Figure 1 It is the whole structure schematic diagram of the utility model;

[0032] Figure 2 It is the A direction structure schematic diagram of Figure 1 ;

[0033] Figure 3 It is the structure schematic diagram of the side roller of the utility model is installed on the crossbeam through the lug.

[0034] The sign of drawing: intermediate roller 11, side roller 12, crossbeam 2, intermediate frame 21, side support column 22, side support 23, horizontal block 231, vertical block 232, adjusting hole 24, mounting hole 25, side mounting hole 26, side blocking roller 27, lug 3, recess 31, clamping plate 32, clamping hole 33, through-hole 34. Specific implementation

[0035] In order to make the purpose, technical scheme and advantage of the utility model more clearly and clearly, the utility model is further detailed below in combination with the drawings and examples.It should be understood that the specific examples described here are only used to explain the utility model and not to limit the utility model.

[0036] Example 1: a kind of sinking arc-shaped round pipe crossbeam carrier roller set as shown in Figures 1 to 3 , including the carrier roller set installed on crossbeam 2, each carrier roller set includes several rollers, and the roller is arranged along crossbeam 2.All crossbeams 2 are arranged between two parallel intermediate frames 21 and are evenly arranged along the length direction of intermediate frame 21, and each crossbeam 2 is fixedly connected with the intermediate frame 21 on both sides. Among them, crossbeam 2 is arc-shaped round pipe structure, and the bottom of crossbeam 2 is lower than the bottom of intermediate frame 21, this kind of structure can improve the cross section bending performance of crossbeam 2, and can make the theoretical belt surface height close to the height of intermediate frame 21, reduce the theoretical belt surface height, more conducive to observation and maintenance, and can enhance the rigidity and stability of carrier roller frame (refers to all the components supporting the conveying belt), effectively prevent the deviation and damage of conveying belt; Compared with the existing groove crossbeam 2, the deflection of the arc-shaped crossbeam 2 is higher, the bending performance is better, the overall weight of the carrier roller frame (weight reduction is more than 15%-20%) and the manufacturing cost can be reduced, the material consumption is avoided to increase greatly, which leads to the increase of weight and cost.

[0037] Example 2: on the basis of example 1, the connection mode of crossbeam 2 and intermediate frame 21 is preferably designed, and crossbeam 2 is connected with intermediate frame 21 through side support column 22 and side support 23, specifically, Figure 1As shown, the side support 23 comprises a horizontal block 231 and a vertical block 232 which are integrally connected and perpendicular to each other, and the vertical section of the vertical block 232 is in the shape of "L". The horizontal block 231 is fixedly connected to the surface of the middle frame 21, and the vertical block 232 is fixedly connected to the lower part of the side support column 22. The upper part of the side support column 22 is inclined to the inside of the middle frame 21, and the inside surface thereof is fixedly connected to the end of the cross beam 2. Since the two ends of the cross beam 2 are fixed to the side support column 22, and the cross beam 2 is in the shape of arc, the bottom of the cross beam 2 is lower than the bottom of the middle frame 21. Therefore, the side support column 22 can support and fix the cross beam 2, and the height of the side support column 22 can be reduced. Even if the width of the cross beam 2 is increased, the height of the side support column 22 does not need to be greatly increased. The height of the side support column 22 of this structure is reduced by 30%-40% compared with the height of the side support column 22 used in the existing angle steel cross beam roller group. The rigidity of the side support column 22 is better, the stability of the roller frame is better, the cross beam 2 is not easy to deform, and the conveyor belt is not easy to deviate. In addition, reducing the height of the side support column 22 can also reduce the material consumption of the entire roller frame, thereby saving the manufacturing cost.

[0038] Preferably, the side support column 22 and / or the side support 23 is provided with an adjusting hole 24, that is, the adjusting hole 24 is arranged in the vertical block 232 of the side support 23 or / and in the lower part of the side support column 22. A fixing member passes through the adjusting hole 24 and another connecting surface connected with the adjusting hole 24 or the fixing member passes through two adjusting holes 24 connected with each other, so that the side support 23 and the side support column 22 are fixedly connected. The fixing member can be selected from a bolt and a nut which are connected in cooperation. The adjusting hole 24 is a vertical long hole. The side support 23 and the side support column 22 can move up and down along the connecting surface to adaptively adjust the theoretical belt surface height, that is, the distance between the belt surface of the belt conveyor and the ground. The theoretical belt surface height can be adjusted by ±20mm.

[0039] As shown in the drawings, Figures 1 to 2 The connecting parts of the middle frame 21 and the side support 23 on both sides are respectively provided with mounting holes 25, that is, the surface of the middle frame 21 on both sides and the horizontal block 231 of the side support 23 on both sides are respectively provided with mounting holes 25. The length directions of the mounting holes 25 on the same side of the middle frame 21 and the side support 23 are consistent, and the length directions of the mounting holes 25 on different sides are different. Specifically, the length direction of the mounting hole 25 on one side is parallel to the running direction of the conveyor, and the length direction of the mounting hole 25 on the other side is perpendicular to the running direction of the conveyor. A fixing member passes through the mounting holes 25 on both sides, so that the side support 23 and the middle frame 21 are fixedly connected. The fixing member can be selected from a bolt and a nut which are connected in cooperation. Since the mounting holes 25 on both sides of the middle frame 21 and the side support 23 are arranged to be perpendicular to each other, the positions of the mounting holes 25 can be adjusted from different directions (two coordinate axis directions) during actual installation, so that the problem of deviation of the mounting holes 25 is solved, the problem of low bolt penetration rate caused by deviation of the mounting holes 25 of the side support 23 and the middle frame 21 is reduced, the bolt penetration rate is improved by more than 50%, and the bolt penetration rate is improved.

[0040] Further, a side mounting hole 26 is provided above the side portion of the side pillar 22. By reserving the side mounting hole 26 on the side portion of the side pillar 22, it is convenient to add and install the side deflector roller 27.

[0041] Embodiment 3: On the basis of Embodiment 1, an optimized design is carried out on the idler set. The idler set includes 3 rollers. As Figure 2 shown, the 3 rollers are distributed in a "pin" shape on both sides of the cross beam 2 and are arranged parallel to the cross beam 2. The 3 rollers include a horizontally arranged middle roller 11 and inclined side rollers 12. The middle roller 11 is on one side of the cross beam 2, and the two side rollers 12 are on the other side of the cross beam 2, and the two side rollers 12 are symmetrically arranged. Adopting the "pin" shape arrangement of the idler set can effectively reduce the scratch of the conveyor belt, reduce the indentation resistance, and improve the stability of the idler set.

[0042] Further, the rollers are arranged on the cross beam 2 through the support ears 3 at both ends. The support ears 3 are welded and fixed on the cross beam 2. All the support ears 3 are symmetrically arranged along the center line in the length direction of the cross beam 2, which can make the installed idler set better correct the running deviation of the conveyor belt.

[0043] As Figures 2 to 3 shown, a groove 31 is recessed downward in the middle of the top of the support ear 3 at one end of the roller. A clamping plate 32 closely adhering to the side of the support ear 3 is fixed above the groove 31 by means of threaded connection. The clamping plate 32 and the groove 31 form a clamping hole 33. One end of the roller shaft of the roller extends into the clamping hole 33, and its flat square groove position is clamped in the clamping hole 33; a through hole 34 is provided at the top of the support ear 3 at the other end of the roller, and the other end of the roller shaft extends into the through hole 34, and its flat square groove position is clamped in the through hole 34. When installing the roller, first extend one end of the roller shaft into the through hole 34, then place the other end of the roller shaft in the groove 31, and then fix the clamping plate 32. This method is not only convenient for installing and disassembling the roller, but also can prevent the roller from falling off when being impacted.

[0044] Embodiment 4: On the basis of the above embodiments, an optimized design is carried out. As Figure 3 shown, the front inclination angle β3 of the idler set ranges from 1° to 2°. The front inclination angle refers to the angle formed by the axes of the side rollers 12 on both sides of the idler set and the longitudinal center line of the conveyor belt of the conveyor (generally inclined forward). When installing the support ears 3 of the side rollers 12, it is necessary to ensure that the front inclination angle β3 of the placed side rollers 12 ranges from 1° to 2°. The two side rollers 12 and the center roller can form a "pin" shape grooved idler set, and the front inclination angle within this range can reduce the sliding of materials on the conveyor belt and improve the conveying efficiency of materials. As Figure 1As shown, the side inclination angle β2 of the roller group is 35° or 45°, the side inclination angle refers to the included angle between the center line of the side roller 12 on both sides of the roller group and the horizontal plane, and the angle of the side inclination angle can be selected and set according to the arrangement needs of the belt conveyor. By designing the side inclination angle β2 of the roller group to be 35° or 45°, the side roller 12 can generate a certain transverse thrust on the running conveyor belt, thereby helping to correct the deviation problem of the conveyor belt.

[0045] The radius R of the cross beam 2 ranges from 400 to 1200 mm, for example Figure 1 As shown, the central angle β1 ranges from 90° to 120°. The specific radius R and the central angle β2 are set according to the shape and size of the roller group. The cross beam 2 within the radius R and the central angle β1 can adapt to roller groups of different shapes and sizes, solving the problem of insufficient rigidity and stability of the existing standard groove type roller group causing the conveyor belt to deviate and damage.

[0046] The above embodiments only express the specific implementation of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the protection scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the technical concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application.

Claims

1. A sink roll group of an arcuate round pipe beam support roller, comprising a plurality of rollers, characterized in that: Rollers are arranged along the crossbeam (2), the crossbeam (2) is fixedly connected with the middle frame (21) on both sides; the crossbeam (2) is an arc-shaped circular tube structure, and the bottom thereof is lower than the bottom of the middle frame (21); The crossbeam (2) is connected with the middle frame (21) through the side support column (22) and the side support base (23), the side support base (23) comprises a horizontal block (231) and a vertical block (232) which are integrally connected and perpendicular to each other, wherein the horizontal block (231) is fixedly connected with the surface of the middle frame (21) in parallel, and the vertical block (232) is fixedly connected with the side support column (22) in parallel; the side support column (22) and / or the side support base (23) are provided with an adjusting hole (24), the adjusting hole (24) is a vertical long hole, and the side support base (23) and the side support column (22) can be moved up and down along the connecting surface to adaptively adjust the theoretical belt surface height, and are fixedly connected through the fixing member matched and connected with the adjusting hole (24); The connecting positions of the middle frame (21) and the side support base (23) on both sides are respectively provided with mounting holes (25), wherein the mounting hole (25) on one side is arranged along the running direction, and the mounting hole (25) on the other side is perpendicular to the running direction, and the fixing member passes through the mounting holes (25) on both sides to fix the middle frame (21) and the side support base (23).

2. A sink roll group of the crossbeam of the arc-shaped round pipe according to claim 1, characterized in that: The upper part of the side support column (22) is inclined to the inner side of the middle frame (21), and the inner side surface thereof is fixedly connected with the end of the crossbeam (2).

3. A sink roll group of the crossbeam of the arc-shaped round pipe according to claim 1, characterized in that: The side of the side support column (22) is further provided with a side mounting hole (26), and the side mounting hole (26) is used for mounting a side guard roller (27).

4. A sink roll group of the crossbeam of the submerged arc-shaped round pipe according to claim 1, characterized in that: The roller group comprises three rollers, and the three rollers are arranged in a "pin" shape on both sides of the crossbeam (2) and are arranged in parallel with the crossbeam (2).

5. A sink roll group of the crossbeam of the submerged arc-shaped round pipe according to claim 4, characterized in that: The roller is arranged on the crossbeam (2) through the lugs (3) at both ends, the lug (3) at one end of the roller is provided with a groove (31), the upper part of the groove (31) is detachably fixed with a clamping plate (32) closely attached to the side surface of the lug (3), the clamping plate (32) and the groove (31) form a clamping hole (33), and one end of the roller shaft extends into the clamping hole (33); the lug (3) at the other end of the roller is provided with a through hole (34), and the other end of the roller shaft extends into the through hole (34).

6. A sunken arc-shaped circular tube crossbeam roller assembly according to claim 5, characterized in that: The lug (3) is fixedly welded on the crossbeam (2), and all the lugs (3) are arranged symmetrically along the center line of the length direction of the crossbeam (2).

7. A sink roll group according to any one of claims 1 to 6, characterized in that: The front inclination angle β3 of the roller group ranges from 1° to 2°, the side inclination angle β2 is 35° or 45°, the radius R of the crossbeam (2) ranges from 400 mm to 1200 mm, and the central angle β1 ranges from 90° to 120°.

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