An adjustable pitch roller conveyor

Abstract

The utility model relates to a roller conveying device technical field especially relates to an adjustable pitch's roller conveying device, include: the mounting seat of sliding connection in the transmission frame, the mounting shaft of rotation connection in the mounting seat, the first bevel gear set that is composed of two intermeshing bevel gears, the second bevel gear set that is composed of two intermeshing bevel gears, the fixed groove frame of fixed connection in the transmission frame, set up the fixing piece on the mounting seat, the utility model adjusts the roller pitch of material size adaptation, will reduce material damage risk, reduce production cost, promote the stability and security of conveying process, and make the distribution density of adjustment after roller reasonable, avoid the phenomenon of the coincidence of the effect of the roller due to the too small roller pitch, reduce the redundant power consumption, improve the energy utilization ratio, reduce the mutual interference and wear and tear between the roller, prolong the service life of the utility model.

Description

Technical Field

[0001] This utility model relates to the technical field of roller conveyor devices, and in particular to an adjustable-pitch roller conveyor device. Background Technology

[0002] In industrial production and logistics, roller conveyors are widely used for conveying various materials due to their simple structure and stable operation. Traditional roller conveyors typically consist of multiple parallel rollers, using a sprocket drive system. This drive structure fixes the transmission relationship between the rollers, resulting in a fixed spacing between them after the device is manufactured. However, in actual production applications, materials vary greatly in type and size, ranging from small parts to large boxes and plates, and different materials have different requirements for roller spacing.

[0003] When conveying smaller materials, if the roller spacing is too large, the materials are prone to tilting or falling due to insufficient support. This not only affects the stability and safety of the conveying process but may also lead to material damage and increase production costs. On the other hand, when conveying larger or heavier materials, if the roller spacing is too small, the roller distribution density will be too high, and the rollers will overlap. This will affect energy efficiency due to excessive power consumption, and the mutual interference between the rollers will also increase wear and tear during equipment operation, reducing the service life of the equipment.

[0004] Therefore, existing roller conveyor devices suffer from problems such as poor adaptability to materials of different specifications and insufficient conveying stability due to the fixed roller spacing. Utility Model Content

[0005] To address the aforementioned deficiencies in the prior art, this invention provides an adjustable-pitch roller conveyor device, enabling flexible adjustment of the roller pitch.

[0006] The technical solution of this utility model is: an adjustable-gap roller conveying device, comprising: a conveying frame, on both sides of which are symmetrically arranged a row of equally spaced mounting slots with the slot openings facing upwards; rollers disposed between the mounting slots on the conveying frame, each roller consisting of a shaft and a cylindrical portion rotatably connected to the shaft, the rollers being inserted into the mounting slots of the conveying frame by inserting their shaft portions into the mounting slots; a spline roller rotatably disposed on the conveying frame; a motor fixedly connected to the conveying frame; a connector disposed between the output shaft of the motor and the spline roller; and a transmission assembly disposed on the conveying frame, which connects the spline roller and the rollers.

[0007] The transmission assembly includes: a mounting base slidably connected to the conveying frame; a mounting shaft rotatably connected to the mounting base; a first bevel gear set consisting of two meshing bevel gears, each bevel gear being fixedly connected to the cylindrical portion of the roller and one end of the mounting shaft; a second bevel gear set consisting of two meshing bevel gears, each bevel gear being rotatably connected to the mounting base and the other end of the mounting shaft, and the bevel gears on the mounting base being keyed to a spline roller; a fixed slot frame fixedly connected to the conveying frame, with the mounting base and the fixed slot frame slidingly engaged; and a fixing member disposed on the mounting base for fixing the relative position between the mounting base and the fixed slot frame.

[0008] Furthermore, the connecting component includes: a connecting shaft on the output shaft of the motor, a spline shaft keyed to the connecting shaft, and the spline shaft keyed to the spline roller; a return spring fixedly connected between the spline shaft and the output shaft of the motor; and a support arm fixedly connected to the conveying frame, with the spline roller rotatably connected between the support arms via a sleeve.

[0009] Furthermore, the fixing element is a fixing bolt, which is threaded into the mounting base.

[0010] Furthermore, the conveying device also includes a gasket fixedly connected to the contact surface of the fixing bolt and the fixing slot.

[0011] Furthermore, the conveying device also includes a cover plate that is inserted into the mounting slot of the conveying frame.

[0012] Furthermore, the conveying device also includes a temporary rack fixedly connected to the lower part of the conveying frame, the temporary rack being specifically used to store the disassembled rollers and transmission components.

[0013] The beneficial effects are as follows: This utility model, through the detachable assembly structure of the mounting slots evenly spaced on the conveying frame and the rollers, allows for flexible adjustment of the number of rollers and the roller spacing according to the material size. This effectively solves the problem of poor adaptability of traditional conveying devices to materials of different specifications, enabling stable conveying of materials of various sizes. The adjusted roller spacing, which is compatible with the material size, reduces the risk of material damage, lowers production costs, improves the stability and safety of the conveying process, and ensures a reasonable distribution density of the rollers. This avoids overlapping of roller actions caused by excessively small roller spacing, reduces unnecessary power consumption, improves energy utilization, and reduces mutual interference and wear between rollers, extending the service life of this utility model. The use of a transmission component in conjunction with spline rollers enables stable power transmission to the rollers in different positions, ensuring that this utility model can still operate efficiently after adjustment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the connection structure between the transmission component and the roller of this utility model.

[0016] Figure 3 This is a schematic diagram showing the position and structure of the connector of this utility model.

[0017] Figure 4 This is a partial view of the connection structure of the connector of this utility model.

[0018] In the attached drawings, the following are the reference numerals: 1-Conveyor frame, 2-Roller, 3-First bevel gear set, 4-Mounting shaft, 5-Second bevel gear set, 6-Spline roller, 7-Motor, 8-Mounting base, 9-Fixing bolt, 10-Fixing slot frame, 11-Connector, 1101-Spline shaft, 1102-Return spring, 1103-Support arm, 12-Shim, 13-Cover plate, 14-Temporary rack. Detailed Implementation

[0019] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0020] Example: An adjustable-pitch roller conveyor, see reference. Figures 1-3 The system includes: a conveyor frame 1, with a row of equally spaced mounting slots symmetrically arranged on both the front and rear sides, with the slot openings facing upwards; rollers 2 disposed between the mounting slots on the conveyor frame 1, each roller 2 consisting of a shaft and a cylindrical portion rotatably connected to the shaft, the rollers 2 being disassembled and assembled by inserting their shafts into the mounting slots of the conveyor frame 1; a spline roller 6 rotatably disposed on the conveyor frame 1; a motor 7 fixedly mounted on the conveyor frame 1; a connector 11 disposed between the output shaft of the motor 7 and the spline roller 6 to achieve disassembly and assembly of the two; and a transmission assembly disposed on the conveyor frame 1, which connects the spline roller 6 and the roller 2 for transmitting power to the rollers 2 in different positions.

[0021] The transmission assembly includes: a mounting base 8 slidably mounted on the conveyor frame 1; a mounting shaft 4 rotatably mounted on the mounting base 8; a first bevel gear set 3 consisting of two meshing bevel gears, the two bevel gears being fixedly connected to the cylindrical part of the roller 2 and one end of the mounting shaft 4 respectively; a second bevel gear set 5 consisting of two meshing bevel gears, the two bevel gears being rotatably connected to the mounting base 8 and the other end of the mounting shaft 4 respectively, and the bevel gears on the mounting base 8 being keyed to the spline roller 6; a fixed slot frame 10 fixedly mounted on the conveyor frame 1, with the mounting base 8 and the fixed slot frame 10 in sliding engagement; and a fixing member provided on the mounting base 8, which is used to fix the relative position between the mounting base 8 and the fixed slot frame 10, thereby fixing the position of the transmission assembly.

[0022] When this conveying device is in operation, the motor 7 starts and drives the spline roller 6 to rotate through the connector 11. The spline roller 6 drives the mounting shaft 4 to rotate through the second bevel gear set 5. The mounting shaft 4 then drives the cylinder of the roller 2 to rotate through the first bevel gear set 3, thereby realizing the material conveying function of the roller 2.

[0023] When it is necessary to adjust the spacing of rollers 2, first determine the required spacing of rollers 2 according to the size of the conveyed material. Based on the spacing of the mounting slots on the conveying frame 1, determine the specific increase or decrease requirements and quantities of rollers 2. Then, remove or place rollers 2 from the mounting slots of the conveying frame 1 accordingly. Next, disassemble the connecting piece 11 between the motor 7 and the spline roller 6, as well as the fixing piece on the transmission assembly. Remove or place the corresponding number of transmission assemblies from the conveying frame 1 and the spline roller 6. At this time, the position of each roller 2 is adjusted and determined. Move the transmission assembly so that the bevel gear of the first bevel gear set 3 on the mounting base 8 meshes with the bevel gear of the first bevel gear set 3 on each roller 2. Then, use the fixing piece to fix the position of the transmission assembly and reinstall the connecting piece 11. The adjustment of the spacing of rollers 2 can then be completed. At this time, this conveying device can be used to convey materials of the corresponding size.

[0024] The detachable assembly structure of the rollers 2 and the equally spaced mounting slots on the conveying frame 1 allows for flexible adjustment of the number of rollers 2 and the spacing between rollers 2 according to the material size. This effectively solves the problem of poor adaptability of traditional conveying devices to materials of different specifications, enabling stable conveying of materials of various sizes. The adjusted roller spacing, which matches the material size, reduces the risk of material damage, lowers production costs, improves the stability and safety of the conveying process, and ensures a reasonable distribution density of rollers 2. This avoids overlapping of rollers 2 due to excessively small spacing, reduces unnecessary power consumption, improves energy utilization, and reduces mutual interference and wear between rollers 2, extending the service life of the conveying device. The use of a transmission component in conjunction with the spline roller 6 enables stable power transmission to rollers 2 in different positions, ensuring that the conveying device continues to operate efficiently after adjustment.

[0025] See Figure 3 and Figure 4 The connecting component 11 includes: a connecting shaft on the output shaft of the motor 7, a spline shaft 1101 keyed to the connecting shaft, and the spline shaft 1101 keyed to the spline roller 6; a return spring 1102 fixedly installed between the spline shaft 1101 and the output shaft of the motor 7; and a support arm 1103 fixedly installed on the conveyor frame 1, with the spline roller 6 rotatably mounted between the support arms 1103.

[0026] When it is necessary to disassemble or assemble the transmission assembly, the spline shaft 1101 is slidably moved to disengage the key connection between the spline shaft 1101 and the spline roller 6. Then, the spline roller 6 can be moved to separate from the support arm 1103. At this point, the transmission assembly can be freely removed from the spline roller 6 and the transmission frame 1. After the disassembly and assembly of the transmission assembly are completed, the spline roller 6 is moved and reassembled onto the support arm 1103. The spline shaft 1101 is then reset and re-engaged with the spline roller 6. The return spring 1102, through its own elastic deformation, maintains a stable connection between the spline shaft 1101 and the spline roller 6. This structural design allows for convenient disassembly and assembly of the motor 7 and the spline roller 6, while ensuring stable power transmission from the motor 7 to the spline roller 6.

[0027] See Figure 1 and Figure 2 The fastener is a fixing bolt 9, which is threaded into the mounting base 8. The conveying device also includes a washer 12 fixedly mounted on the contact surface between the fixing bolt 9 and the fixing slot frame 10. When fixing the mounting base 8 and the fixing slot frame 10, the fixing bolt 9 passes through the fixing slot frame 10 and is threaded into the mounting base 8. By rotating the fixing bolt 9, the mounting base 8 is gradually pressed against the fixing slot frame 10. The pressure generated between them increases the friction of the contact surface, thereby achieving a stable connection between the mounting base 8 and the fixing slot frame 10. The washer 12 effectively reduces the pressure between the fixing bolt 9 and the fixing slot frame 10, lowering the risk of the fixing bolt 9 damaging the fixing slot frame 10.

[0028] See Figure 1 and Figure 3 The conveying device also includes: a cover plate 13 inserted into the mounting groove of the conveying frame 1, which can effectively protect the connection between the shaft of the roller 2 and the mounting groove of the conveying frame 1, and prevent external dust, debris and other objects from entering the connection gap and affecting the running stability of the roller 2, thereby ensuring the stable operation of the conveying device; and a temporary rack 14 fixedly installed at the bottom of the conveying frame 1. The temporary rack 14 is specifically used to store the disassembled roller 2 and transmission components, so as to manage these components in a unified manner and facilitate reassembly and use according to the conveying requirements in the future.

[0029] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Therefore, all equivalent changes made based on the content of the claims of the present utility model should be included within the scope of the claims of the present utility model.

Claims

1. An adjustable-pitch roller conveyor, characterized in that, include: A conveyor frame (1) is provided with a row of equally spaced mounting slots on both sides of the conveyor frame (1), with the slot openings facing upwards; a roller (2) is provided between the mounting slots on the conveyor frame (1), the roller (2) is composed of a shaft and a cylindrical part rotatably connected to the shaft, the roller (2) is installed in the mounting slot of the conveyor frame (1) by inserting its shaft; a spline roller (6) is rotatably provided on the conveyor frame (1); a motor (7) is fixedly connected to the conveyor frame (1); a connector (11) is provided between the output shaft of the motor (7) and the spline roller (6); and a transmission assembly is provided on the conveyor frame (1), which is connected between the spline roller (6) and the roller (2); The transmission assembly includes: a mounting base (8) slidably connected to the conveying frame (1); a mounting shaft (4) rotatably connected to the mounting base (8); a first bevel gear set (3) consisting of two meshing bevel gears, the two bevel gears being fixedly connected to the cylindrical part of the roller (2) and one end of the mounting shaft (4); a second bevel gear set (5) consisting of two meshing bevel gears, the two bevel gears being rotatably connected to the mounting base (8) and fixedly connected to the other end of the mounting shaft (4), and the bevel gears on the mounting base (8) being keyed to the spline roller (6); a fixed slot frame (10) fixedly connected to the conveying frame (1), the mounting base (8) and the fixed slot frame (10) being slidably engaged; and a fixing member provided on the mounting base (8), which is used to fix the relative position between the mounting base (8) and the fixed slot frame (10).

2. The adjustable-pitch roller conveyor as described in claim 1, characterized in that, The connector (11) includes: a connecting shaft on the output shaft of the motor (7), a spline shaft (1101) keyed to the connecting shaft, and the spline shaft (1101) keyed to the spline roller (6); a return spring (1102) fixedly connected between the spline shaft (1101) and the output shaft of the motor (7); and a support arm (1103) fixedly connected to the conveyor frame (1), with the spline roller (6) rotatably connected between the support arms (1103) through a sleeve.

3. The adjustable-pitch roller conveyor as described in claim 2, characterized in that, The fastener is a fixing bolt (9), which is threaded into the mounting base (8).

4. The adjustable-pitch roller conveyor as described in claim 3, characterized in that, The conveying device further includes a gasket (12) fixedly connected to the contact surface of the fixing bolt (9) and the fixing slot (10).

5. The adjustable-pitch roller conveyor as described in claim 4, characterized in that, The conveying device further includes a cover plate (13) that is inserted into the mounting slot of the conveying frame (1).

6. The adjustable-pitch roller conveyor as described in claim 5, characterized in that, The conveying device further includes a temporary rack (14) fixedly connected to the lower part of the conveying frame (1), which is specifically used to store the disassembled roller (2) and transmission components.

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