Modular universal roller conveyor

Abstract

The present invention relates to the field of track line transportation technology, specifically a modular universal roller track, including a support frame, a driving mechanism and a plurality of roller groups, the plurality of roller groups are arranged in sequence on the support frame, each roller group includes a roller shaft and a roller fixedly arranged on the roller shaft, the roller shaft is detachably assembled on the support frame through fixed module seats at both ends, one end of the roller shaft is a driving end, and the other end is a driven end, the driving end of the roller shaft is provided with a transmission assembly for driving the roller shaft to rotate, the driving mechanism outputs power to the transmission assembly; the roller shaft is rotationally connected with the fixed module seat. The main implementation part of this device is the fixed module seat, which can be applied to bevel gear and chain transmission at the same time, and the conversion between the two modes is convenient, and the assembly method is close or consistent, which is convenient for changing the model.

Description

Technical Field

[0001] The invention relates to the technical field of rail conveying, and belongs to a standardized pallet conveying system based on standard aluminum profiles, in particular to a modular universal roller conveyor. Background Art

[0002] In the standardized pallet system, roller conveyors are used in actual production as a heavy-duty form. The roller conveyors are generally in the form of chain drive and bevel gear drive. Whether chain drive or bevel gear drive, when the load of a single pallet is between 300kg and 700kg, an accumulation structure is used to achieve the function of a single drive driving multiple stations.

[0003] The existing roller tracks on the market have not standardized the roller wheel group into a standard module, and it is necessary to pre-drill holes on the side of the frame to install the bearings during installation, which takes a long time, is difficult to process, and difficult to assemble. There is currently no standard design for roller tracks that can be used with both bevel gears and chain drives. Therefore, during the design, the chain and bevel gear drives need to be designed separately, and they cannot be switched freely or stocked universally. After the project starts, they all need to be redesigned and produced, which takes a long time and has a low degree of freedom. Summary of the invention

[0004] In view of the defects of the above-mentioned prior art, the purpose of the present invention is to provide a modular universal roller track to achieve standardization and modularization of core components, which can be applied to bevel gears and chain drives at the same time and ensure assembly accuracy.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a modular universal roller track, including a supporting frame, a driving mechanism and a plurality of roller groups, the plurality of roller groups are arranged in sequence on the supporting frame, each roller group includes a roller shaft and a roller fixed on the roller shaft, the roller shaft is detachably assembled on the supporting frame through fixed module seats at both ends, one end of the roller shaft is a driving end, and the other end is a driven end, the driving end of the roller shaft is provided with a transmission assembly for driving the roller shaft to rotate, and the driving mechanism outputs power to the transmission assembly; the roller shaft is rotatably connected to the fixed module seat.

[0006] Furthermore, a circular assembly cavity is provided on the fixed module seat, a bearing is installed in the circular assembly cavity, and the roller shaft is rotatably connected to the fixed module seat through the bearing; a lower positioning plane is provided on the lower surface of the fixed module seat, an upper positioning plane is provided on the upper surface of the fixed module seat, an axial positioning plane is provided on a side plane of the fixed module seat perpendicular to the axial direction of the roller shaft, a side plane of the fixed module seat perpendicular to the radial direction of the roller shaft is recessed inward to form a radial positioning groove, a locking positioning protrusion is provided in the radial positioning groove, and the locking positioning protrusion is a circular protrusion, and two planar notches are provided on the circular protrusion.

[0007] Furthermore, the driving mechanism includes a motor and a reducer, and the motor and the reducer are fixed on the side wall outside the supporting frame; there are two rollers, and the two rollers are connected to the roller shaft by keys; the supporting frame is composed of two groups of aluminum profiles parallel to each other, and the upper surface of the aluminum profile has a notch, and the lower positioning plane of the fixed module seat matches the upper surface of the aluminum profile, and the edges of both ends of the fixed module seat are provided with extensions, and bolt holes are opened on the extensions, and the bolt holes on one side are open, and the fixed module seat is fixed and locked with bolts on the notch on the upper surface of the aluminum profile; the roller track is provided with a top cover, and the top cover is assembled on a number of fixed module seats by means of a slot, and the top cover matches the upper positioning plane of the fixed module seat, and a number of empty slots are provided on both sides of the top cover, and the rollers are arranged in a one-to-one correspondence with the empty slots, and the rollers protrude above the top cover through the empty slots, and dust boxes are provided on the driving end and the driven end of the several roller groups.

[0008] Furthermore, the transmission assembly is a bevel gear transmission assembly, including a first bevel gear and a second bevel gear, the driving end of the roller shaft extends to the outside of the fixed module seat to form an extended section, the first bevel gear is assembled on the extended section of the driving end of the roller shaft, and the mounting reference surface of the first bevel gear is matched with the axial positioning plane of the fixed module seat for positioning; the second bevel gear is vertically meshed with the first bevel gear, the second bevel gears of several roller groups are coaxially and directionally arranged, the second bevel gears of several roller groups are connected in series through a through shaft, and a transmission gear is arranged at one end of the through shaft, and the transmission gear is transmission-connected to the output gear of the driving mechanism.

[0009] Preferably, the bevel gear transmission assembly is equipped with a stop ring and a pre-tightening mechanism, one end of the stop ring is an annular portion, the annular portion of the stop ring is arranged on the through shaft through a transmission bearing sleeve, the end face of the annular portion is in contact with the second bevel gear, and the other end of the stop ring is a positioning portion, the positioning portion of the stop ring is assembled in the radial positioning groove of the fixed module seat, the upper surface of the positioning portion of the stop ring is matched with the upper surface of the radial positioning groove of the fixed module seat for positioning, the positioning portion of the stop ring is provided with a positioning slot that matches the locking positioning protrusion, and a center through hole is provided at the positioning slot of the stop ring, and the locking bolt passes through the center through hole and is pressed against the surface of the locking positioning protrusion for positioning; the pre-tightening mechanism includes a sleeve mounted on the through shaft, baffles are provided at both ends of the sleeve, and a compression disc spring is provided between the two baffles, one end of the compression disc spring is tightened against the second bevel gear through a gasket, and the other end of the compression disc spring is connected to the fixing ring through a gasket, and the fixing ring is fastened to the through shaft by a threaded manner.

[0010] Preferably, the through shaft is a hexagonal shaft structure, and a hexagonal hole matching the hexagonal shaft is provided inside the sleeve; in the roller group, a detachable unit is composed of a roller shaft, two rollers on the roller shaft, a fixed module seat connected at both ends of the roller shaft, and the first bevel gear in the bevel gear transmission assembly.

[0011] Furthermore, the transmission assembly is a sprocket transmission assembly, including a first sprocket and a second sprocket, the driving end of the roller shaft extends to the outside of the fixed module seat to form an extended section, the first sprocket and the second sprocket are fixedly assembled on the extended section of the driving end of the roller shaft, two adjacent first sprockets in a number of roller groups are transmission connected, and two adjacent second sprockets in a number of roller groups are transmission connected, the first sprocket and the second sprocket on each roller group are respectively connected to the roller groups on both sides, and the output gear of the driving mechanism drives the several roller groups on the entire roller line to rotate in a two-stage transmission mode or an end transmission mode.

[0012] Preferably, the two-stage transmission mode is that the output gear transmission of the driving mechanism is connected to two adjacent first sprockets, and the two adjacent first sprockets are located in the middle of the entire conveying system. The two adjacent first sprockets serve as power sources to drive the roller groups on both sides to rotate in turn; the end transmission mode is that the output gear transmission of the driving mechanism is connected to a first sprocket, and the one first sprocket is located at the end of the entire conveying system. The first sprocket serves as a power source to drive the roller group on one side to rotate.

[0013] Preferably, two adjacent first sprockets are connected by a chain transmission, two adjacent second sprockets are connected by a chain transmission, the distance between two adjacent fixed module seats matches the length of the chain, the gap between two adjacent fixed module seats is positioned by a wedge block, and several fixed module seats on both sides of the support frame are symmetrically arranged; the wedge block is provided with a base, bolt holes are provided on the base and are bolted to the fixed module seats on both sides; the first sprocket and the second sprocket of each roller group form a driving sprocket group, a limit sleeve and a gasket are provided between the fixed module seat and the driving sprocket group, and the driving sprocket group is sequentially provided with a gasket, a disc spring, a gasket and a locking ring toward the end face direction of the roller shaft; an isolation ring is provided between the first sprocket and the second sprocket.

[0014] The assembly method of the modular universal roller track is as follows: a plurality of roller groups are assembled on supporting frames which are parallel to each other on both sides; the roller shafts of each roller group are detachably connected to the two sides of the supporting frame through fixed module seats at both ends; the roller shafts are rotatably connected to the fixed module seats; the driving ends of the roller shafts are assembled with bevel gear transmission components or sprocket transmission components; the bevel gear transmission components and the sprocket transmission components can be replaced with each other; and both the bevel gear transmission components and the sprocket transmission components are positioned by the fixed module seats.

[0015] Furthermore, the assembly method of the modular universal roller track is specifically as follows: a plurality of roller groups are assembled on supporting frames parallel to each other on both sides, and the roller shafts of each roller group are detachably connected to the two sides of the supporting frame through fixed module seats at both ends, and a circular assembly cavity is provided on the fixed module seat, and a bearing is assembled in the circular assembly cavity, and the roller shaft is rotatably connected to the fixed module seat through the bearing; a lower positioning plane is arranged on the lower surface of the fixed module seat, and an upper positioning plane is arranged on the upper surface of the fixed module seat, and an axial positioning plane is arranged on a side plane of the fixed module seat perpendicular to the axial direction of the roller shaft, and a side plane of the fixed module seat perpendicular to the radial direction of the roller shaft is indented inward to form a radial positioning groove, and a transmission assembly is assembled on the driving end of the roller shaft, and the transmission assemblies of the plurality of roller groups are connected, and the transmission assembly drives all the roller groups to rotate by cooperating with the output gear in the driving mechanism;

[0016] The transmission assembly is a bevel gear transmission assembly, including a first bevel gear and a second bevel gear that mesh with each other perpendicularly, the driving end of the roller shaft is equipped with a first bevel gear, and the mounting reference surface of the first bevel gear is matched with the axial positioning plane of the fixed module seat for positioning; the second bevel gears of several roller groups are connected in the same direction in series through a through shaft, and a transmission gear is provided at one end of the through shaft, and the transmission gear is transmission connected to the output gear of the driving mechanism; the bevel gear transmission assembly is equipped with a stop ring and a pre-tightening mechanism, one end of the stop ring is sleeved on the through shaft and fits the second bevel gear, and the other end of the stop ring is assembled in the radial positioning groove of the fixed module seat and locked by a locking bolt; the pre-tightening mechanism is tightened by a compression disc spring, one end of the compression disc spring is tightened against the second bevel gear, and the other end of the compression disc spring is connected to a fixing ring, and the fixing ring is fastened to the through shaft by a threaded manner; in the roller group, a detachable unit is composed of a roller shaft, two rollers on the roller shaft, a fixed module seat connected at both ends of the roller shaft, and the first bevel gear in the bevel gear transmission assembly;

[0017] Start the driving mechanism, the motor drives the output gear of the reducer and the transmission gear on the through shaft to drive the through shaft to rotate; the rotation of the through shaft drives a number of second bevel gears connected to the through shaft to rotate synchronously; the rotation of the second bevel gears engages with a number of first bevel gears to rotate synchronously, and then the first bevel gears drive the corresponding roller shafts to rotate synchronously, and the upper product is transmitted through the rollers arranged at both ends of the roller shaft;

[0018] When a roller set fails during the operation of the entire conveyor line, the failed roller set needs to be repaired and replaced, and the locking bolt on the stop ring needs to be removed. After the locking bolt is removed, due to the action of the compression disc spring, the compression disc spring stretches from the direction of the fixed ring to the direction of the stop ring, thereby driving the second bevel gear to disengage from the meshing with the first bevel gear. At this time, the stop ring is separated from the radial positioning groove of the fixed module seat; when the first bevel gear and the second bevel gear are separated, the detachable unit is taken out as a whole for replacement;

[0019] When reassembly is required after replacement, first place the pre-assembled detachable unit as a whole on the support frame, the lower positioning plane of the fixed module seat is matched with the upper surface of the support frame for positioning and fastened by bolts, and then the stop ring positioning part is matched with the radial positioning groove of the fixed module seat for positioning, so that the second bevel gear on the through shaft and the first bevel gear on the outer side of the module fixed seat are restored to a meshing state; then the stop ring is fastened to the fixed module seat by the locking bolt; after tightening, the stop ring pushes the compression disc spring to make the compression disc spring in a contracted state, at this time, the maintenance of the conveying system is completed, and the conveying system is restored to a normal operating state;

[0020] The transmission assembly is a sprocket transmission assembly, including a first sprocket and a second sprocket arranged at the driving end of the roller shaft, the output gear of the driving mechanism is connected to the first sprockets of the two adjacent roller groups, and the two adjacent roller groups are used as central transmission ends and are sequentially connected to both sides through chains. The connection method is that the two adjacent first sprockets are connected through chain transmission, and the two adjacent second sprockets are connected through chain transmission, and the first sprocket and the second sprocket on each roller group are respectively connected to the roller groups on both sides;

[0021] The output gear of the driving mechanism rotates, driving the first sprocket connected to the output gear of the reducer to rotate, and through the transmission connection between the adjacent first sprocket and the second sprocket, driving all the rollers to rotate, and the two rollers fixedly mounted on the rollers rotate to complete the transmission of the upper product;

[0022] When a roller group fails during the operation of the entire conveyor line, the failed roller group is repaired and replaced. First, the chain connected to the first sprocket and the second sprocket of the roller group to be replaced is removed, and then the connecting bolts between the two fixed module seats and the support frame of the roller group to be replaced are removed, and the entire roller group is replaced. During the replacement process, the lower positioning planes of the fixed module seats at both ends of the new roller group must be positioned in coordination with the upper surface of the support frame. After the fixed module seats at both ends are fixed, the chains connected to the first sprocket and the second sprocket are reinstalled. At this time, the maintenance of the conveying system is completed and the conveying system is restored to normal operation.

[0023] Several fixed module seats are assembled on the support frame on the same side, and the spacing between two adjacent fixed module seats is adjusted by wedge blocks. Several fixed module seats on both sides of the support frame are symmetrically arranged; when assembling the roller group, the position of each fixed module seat is adjusted in turn according to the length of the chain to ensure that the length of the chain matches the distance between two adjacent fixed module seats. After the gap between two adjacent fixed module seats is measured at the assembly site, a wedge block matching the gap size is polished and directly assembled to the conveying system, and the wedge block is connected and fixed to the fixed module seats on both sides.

[0024] The beneficial effects of the present invention are as follows: the main implementation part of the device is the fixed module seat, which can be applied to both bevel gear and chain transmission, and the conversion between the two modes is convenient, the assembly method is close or consistent, and it is convenient to change the model. At the same time, the device designs the roller group as a standardized module, adopts a modular assembly method, has good assembly flexibility, can be stocked in batches to improve the production efficiency of the line body, shorten the delivery cycle, and facilitate the maintenance and replacement of individual components of the entire conveying system. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The overall assembly diagram of two types of roller tracks, the left side is bevel gear drive, and the right side is sprocket drive;

[0026] Figure 2 It is a schematic diagram of the structure of the fixed module seat;

[0027] Figure 3 It is a schematic diagram of the structure of the driven end of the roller group;

[0028] Figure 4 It is a schematic diagram of the structure of the driving end of the roller group;

[0029] Figure 5 It is a schematic diagram of the roller track structure of the bevel gear drive in Example 2;

[0030] Figure 6 It is an enlarged view of the bevel gear transmission in Example 2;

[0031] Figure 7 Schematic diagram of the driving end structure of the bevel gear transmission in Example 2;

[0032] Figure 8 It is a schematic diagram of the structure of the roller wheel group of the bevel gear drive in Example 2;

[0033] Fig. 9 This is a schematic diagram of the detachable unit structure of the roller group driven by the bevel gear in Example 2;

[0034] Fig.10 Schematic diagram of the stop ring structure of the bevel gear transmission assembly in Example 2;

[0035] Fig.11 is a structural diagram of the preload mechanism of the bevel gear transmission assembly in Example 2;

[0036] Fig.12 The structure diagram of the roller track driven by the sprocket in Example 3;

[0037] Fig.13 It is a schematic diagram of the structure of the roller group of the sprocket drive in Example 3;

[0038] Fig.14Schematic diagram of the driving end structure of the sprocket drive in Example 3;

[0039] Fig.15 Schematic diagram of chain connection of sprocket drive in Example 3;

[0040] Fig.16 This is a schematic diagram of positioning the wedge block in Example 3;

[0041] In the figure: 1, support frame, 2, motor, 3, reducer, 4, roller, 5, fixed module seat, 5.1, upper positioning plane, 5.2, lower positioning plane, 5.3, axial positioning plane, 5.4 radial positioning groove, 5.5, locking positioning protrusion, 5.6 extension bolt hole, 6, roller, 7, bearing, 8, top cover, 9, dust box; 10, roller drive end extension section;

[0042] 101, through shaft, 102, transmission gear, 103, first bevel gear, 104, second bevel gear, 105, stop ring, 106, annular portion of stop ring, 107, positioning portion of stop ring, 108, sleeve, 109, baffle, 110, compression disc spring, 111, fixing ring, 112, center through hole, 113, locking bolt;

[0043] 201, first sprocket, 202, second sprocket, 203, wedge block, 204, limit sleeve, 205, isolation ring, 206, disc spring, 207, locking ring, 208, chain. DETAILED DESCRIPTION

[0044] In order to make the structure and function of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0045] Example 1

[0046] See attached Figure 1-4The modular universal roller track comprises a supporting frame 1, a motor 2, a reducer 3 and a plurality of roller groups, wherein the plurality of roller groups are arranged in sequence on the supporting frame 1, and each roller group comprises a roller shaft 4 and two rollers 6 connected to the roller shaft 4 by a key. The roller shaft 4 is detachably assembled on the supporting frame 1 through fixed module seats 5 at both ends, and one end of the roller shaft 4 is a driving end and the other end is a driven end. The driving end of the roller shaft 4 is provided with a transmission assembly for driving the roller shaft to rotate, and the motor 2 drives the output gear of the reducer 3 to output power to the transmission assembly, and the transmission assembly can be a bevel gear transmission assembly or a sprocket transmission assembly, and the bevel gear transmission assembly and the sprocket transmission assembly are positioned by the fixed module seat 5. In the whole production line, the bevel gear transmission assembly and the sprocket transmission assembly can be completely replaced without changing the roller shaft 4 and the fixed module seat 5.

[0047] for Figure 1 It should be noted that the bevel gear transmission assembly and the sprocket transmission assembly are not assembled on the same roller track, but exist separately, but they can be replaced. Figure 1 This is to illustrate that there are two replaceable transmission components. Figure 1 There are two independent roller lines in the middle.

[0048] Furthermore, a circular assembly cavity is provided on the fixed module seat 5, in which a bearing 7 is installed, and the roller shaft 4 is rotatably connected to the fixed module seat 5 through the bearing 7; a lower positioning plane 5.2 is provided on the lower surface of the fixed module seat, an upper positioning plane 5.1 is provided on the upper surface of the fixed module seat, an axial positioning plane 5.3 is provided on a side plane of the fixed module seat perpendicular to the axial direction of the roller shaft, and a side plane of the fixed module seat perpendicular to the radial direction of the roller shaft is recessed inward to form a radial positioning groove 5.4, and a locking positioning protrusion 5.5 is provided in the radial positioning groove 5.4, and the locking positioning protrusion 5.5 is a circular protrusion, and two planar notches are provided on the circular protrusion.

[0049] The present invention connects the module seat and the side bearing bracket into a fixed module seat with fixed size through positioning features. The circular assembly cavity and the bearing are of standardized size, which matches the size of the roller shaft, is easy to assemble and replace, and ensures assembly accuracy. Several reference surfaces on the fixed module seat can position the bevel gear transmission assembly and the sprocket transmission assembly, with high installation accuracy and simple operation.

[0050] Furthermore, the motor 2 and the reducer 3 are fixed on the side wall outside the support frame 1; the driving components are arranged outside the support frame to facilitate assembly and disassembly.

[0051] Furthermore, the support frame 1 is composed of two groups of aluminum profiles parallel to each other, the upper surface of the aluminum profile has a notch, the lower positioning plane 5.2 of the fixed module seat is matched with the upper surface of the aluminum profile, and the edges of both ends of the fixed module seat are provided with extensions, and the extensions are provided with bolt holes 5.6, one side of which has an open bolt hole 5.6. The fixed module seat 5 is fixed and locked with the notch on the upper surface of the aluminum profile by bolts.

[0052] Based on the above technical solution, the standardized aluminum profile can ensure the requirements of parallelism and flatness. The profile has a notch, and the notch of the profile is used as the installation reference of the roller group. The lower positioning plane 5.2 at the bottom of the fixed module seat can ensure the installation accuracy of the fixed module seat, thereby ensuring that the axes of all roller groups are on the same plane, which is convenient for installing and adjusting the fixed module seat 5 without the need for additional drilling. This ensures the strength and accuracy of the support frame 1 while simplifying the processing technology.

[0053] Furthermore, the roller track is provided with a top cover 8, which is connected to a number of fixed module seats 5 by means of a slot, and the top cover 8 cooperates with the upper positioning plane 5.1 of the fixed module seat. A number of empty slots are provided on both sides of the top cover 8, and the rollers 6 are provided in one-to-one correspondence with the empty slots. The rollers 6 protrude above the top cover through the empty slots, and dust boxes 9 are provided on the outside of the driving end and the driven end of the several roller groups.

[0054] Based on the above technical solution, the top cover 8 has protrusions on both sides, and the protrusions on both sides of the top cover are located on the same horizontal plane as the two sides of the supporting frame, which is convenient for placing the pallet on the conveying system. The positioning plane 5.1 on the fixed module seat ensures the installation accuracy of the top cover 8 and avoids the top cover 8 from tilting and the empty groove of the top cover from interfering with the roller 6. The top cover 8 and the dustproof box 9 can protect and dustproof the conveying system and prevent the mechanical transmission from being affected by external factors.

[0055] Working process: The support frame 1, the roller shaft 4 and the top cover 8 are assembled through the upper positioning plane 5.1 and the lower positioning plane 5.2 of the fixed module seat. When assembling the transmission assembly, the transmission assembly can be positioned through 5 pairs. The bevel gear transmission assembly is positioned and locked through the axial positioning plane 5.3 and the radial positioning groove 5.4. The sprocket transmission assembly is installed and positioned through the axial positioning plane 5.3. If the working conditions require the transmission assembly to be replaced, the transmission assembly on the entire conveyor line can be replaced as a whole without changing the fixed module seat 5 and the roller shaft 4.

[0056] The main implementation part of this device is a fixed module seat, which can be applied to both bevel gears and chain transmissions, and the conversion between the two modes is convenient, and the assembly methods are similar or consistent, which is convenient for model change. At the same time, this device designs the roller group as a standardized module, adopts a modular assembly method, has good assembly flexibility, can be stocked in batches to improve the production efficiency of the line body and shorten the delivery cycle, and is convenient for the maintenance and replacement of individual components of the entire conveying system. The present invention standardizes the core roller group components, and on the basis of independence, achieves the purpose of driving the operation of all roller groups by a single drive, thereby simplifying the overall structure. At the same time, when a roller group in the conveying system fails, the roller group can be replaced as a whole without changing other structures of the entire conveying system. The operation is simple and the efficiency is improved.

[0057] Example 2

[0058] See attached Figure 2-11 The basic structure of the roller track is the same as that of Example 1, and the same structure will not be repeated. Based on the roller track of Example 1, this embodiment assembles the bevel gear transmission assembly to the driving end of the roller shaft. The specific structure is as follows:

[0059] A modular universal roller track is equipped with a bevel gear transmission assembly at the driving end of the roller shaft, and the bevel gear transmission assembly includes a first bevel gear 103 and a second bevel gear 104. The driving end of the roller shaft 4 extends to the outside of the fixed module seat to form an extended section 10, and the first bevel gear 103 is assembled on the extended section of the driving end of the roller shaft. The installation reference surface of the first bevel gear 103 is matched with the axial positioning plane 5.3 of the fixed module seat for positioning; the second bevel gear 104 is vertically meshed with the first bevel gear 103, and the second bevel gears 104 of several roller groups are coaxially and directionally arranged. The second bevel gears 104 of several roller groups are connected in series through a through shaft 101, and a transmission gear 102 is arranged at one end of the through shaft 101. The transmission gear 102 is connected to the output gear of the reducer.

[0060] Furthermore, the bevel gear transmission assembly is equipped with a stop ring 105 and a pre-tightening mechanism, one end of the stop ring 105 is an annular portion, the annular portion 106 of the stop ring is sleeved on the through shaft 101 through a transmission bearing, the end face of the annular portion is fitted with the second bevel gear 104, the other end of the stop ring is a positioning portion, the positioning portion 107 of the stop ring is assembled in the radial positioning groove 5.4 of the fixed module seat, the upper surface of the stop ring positioning portion 107 is matched with the upper surface of the radial positioning groove 5.4 of the fixed module seat for positioning, the positioning portion 107 of the stop ring is provided with a positioning slot matched with the locking positioning protrusion 5.5, a central through hole 112 is provided at the positioning slot of the stop ring, and a locking bolt 113 passes through the central through hole 112 and is pressed against the surface of the locking positioning protrusion 5.5 for positioning;

[0061] Furthermore, the pre-tightening mechanism includes a sleeve 108 sleeved on the through shaft 101, and baffles 109 are provided at both ends of the sleeve 108. A compression disc spring 110 is provided between the two baffles. One end of the compression disc spring 110 is tightened to the second bevel gear 104 through a gasket, and the other end of the compression disc spring 110 is connected to a fixing ring 111 through a gasket. The fixing ring 111 is fastened to the through shaft 101 by threading.

[0062] Furthermore, the through shaft 101 is a hexagonal shaft structure, and the sleeve 108 is provided with a hexagonal hole matched with the hexagonal shaft, thereby increasing the friction between the sleeve 14 and the through shaft 4 and improving the rotation synchronization.

[0063] Furthermore, in the roller assembly, a detachable unit is formed by the roller shaft 4, two rollers 6 on the roller shaft, a fixed module seat 5 connected to both ends of the roller shaft 4, and the first bevel gear 103 in the bevel gear transmission assembly.

[0064] Working process: start the driving mechanism, the motor 2 drives the output gear of the reducer and the transmission gear 102 on the through shaft 101 to drive the through shaft 101 to rotate; the rotation of the through shaft 101 drives a number of second bevel gears 104 connected to the through shaft to rotate synchronously; the number of second bevel gears 104 rotate and mesh with a number of first bevel gears 103 to rotate synchronously, and then the number of first bevel gears 103 drive the corresponding roller shafts 4 to rotate synchronously, and the upper products are transmitted through the rollers 6 arranged at both ends of the roller shaft 4;

[0065] When a roller group fails during the operation of the entire conveyor line, the failed roller group needs to be repaired and replaced, and the locking bolt 113 on the stop ring 105 needs to be removed. After the locking bolt 113 is removed, due to the action of the compression disc spring 110, the compression disc spring 110 stretches from the direction of the fixing ring 111 to the direction of the stop ring 105, thereby driving the second bevel gear 104 to disengage from the meshing with the first bevel gear 103. At this time, the stop ring 105 is separated from the radial positioning groove 5.4 of the fixed module seat; when the first bevel gear 103 and the second bevel gear 104 are separated, the detachable unit is taken out as a whole for replacement.

[0066] When reassembly is required after replacement, first place the pre-assembled detachable unit as a whole on the support frame 1, and the lower positioning plane 5.2 of the fixed module seat is positioned with the upper surface of the support frame and fastened by bolts, and then the stop ring positioning portion 106 is positioned with the radial positioning groove 5.4 of the fixed module seat, so that the second bevel gear 104 on the through shaft 101 and the first bevel gear 1.3 on the outer side of the module fixed seat are restored to a meshing state; then the stop ring is tightened on the fixed module seat by the locking bolt 113; after tightening, the stop ring 105 pushes the compression disc spring 110 to make the compression disc spring contracted. At this time, the maintenance of the conveying system is completed, and the conveying system returns to normal operation.

[0067] Beneficial effects: The roller shaft and the standard fixed module seat form an integral detachable unit, which is not only convenient for the maintenance of the conveyor line, but also ensures the installation tolerance; the standard fixed module seat is connected to the support frame, which is convenient for adjusting the spacing of the roller shaft during installation; the reference positioning surface structure between the standard fixed module seat and the bevel gear transmission unit and other accessories is used to ensure its positioning and assembly accuracy, high assembly efficiency, thereby avoiding noise and wear problems of components.

[0068] Example 3

[0069] See attached Figure 2-4 And attached Figure 12-16 The basic structure of the roller track is the same as that of Example 1, and the same structure will not be repeated. Based on the roller track of Example 1, the sprocket drive assembly is assembled to the driving end of the roller shaft in this embodiment. The specific structure is as follows:

[0070] A modular universal roller conveyor, wherein the driving end of the roller shaft 4 extends to the outside of the fixed module seat to form an extension section 10, and a sprocket transmission assembly is installed at the driving end of the roller shaft, wherein the sprocket transmission assembly comprises a first sprocket 201 and a second sprocket 202, wherein two adjacent first sprockets 201 in a plurality of roller groups are transmission-connected, and two adjacent second sprockets 202 in a plurality of roller groups are transmission-connected, and the first sprocket 201 and the second sprocket 202 on each roller group are respectively connected to the roller groups on both sides, and the motor 2 drives the output gear of the reducer to rotate, and the output gear of the reducer drives the plurality of roller groups on the entire conveying system to rotate in a two-stage transmission manner, and the two adjacent roller groups are used as the central transmission ends, and are sequentially transmission-connected to other roller groups on both sides through chains.

[0071] Furthermore, the two-stage transmission method is that the output gear of the reducer is connected to two adjacent first sprockets 201, and the two adjacent first sprockets 201 are located in the middle of the entire conveying system. The two adjacent first sprockets 201 serve as central transmission sources to drive the roller groups on both sides to rotate in turn.

[0072] Based on the above technical solution, the two roller groups connected to the output gear of the reducer are respectively set as roller group A and roller group a, and the roller groups on the side of roller group A away from roller group a are respectively set as roller group B and roller group C, and so on, and the roller groups on the side of roller group a away from roller group A are respectively set as roller group b and roller group c, and so on; the output gear of the reducer drives the first sprocket on roller group A and roller group a to rotate, thereby driving the roller shafts of roller group A and roller group a to rotate, and the two rollers connected to the roller shafts The second sprocket of roller group A is connected with the second sprocket of roller group B to drive the roller shaft of roller group B to rotate, and the roller installed on the roller shaft of roller group B rotates synchronously with the first sprocket. The first sprocket of roller group B is connected with the first sprocket of roller group C to drive the roller shaft of roller group C to rotate, and the roller installed on the roller shaft of roller group C rotates synchronously with the second sprocket. The above connection method is connected in sequence, and the rotation of roller group A drives the roller group on one side to operate, and the same is true for roller group A and the roller group on the other side. The two-stage transmission method uses two groups of roller groups as power sources, so that the driving force is transmitted to both sides respectively, ensuring the driving strength and driving efficiency, with small transmission error, short transmission distance, and not easy to trip.

[0073] Based on the above, the present invention can also adopt an end transmission method for transmission, which is as follows: the output gear of the reducer is connected to a first sprocket 201, and the first sprocket 201 is located at the end of the entire conveying system. The first sprocket 201 serves as an end transmission source to drive the roller group on one side to rotate.

[0074] Based on the above technical solution, this transmission method is the same as the connection transmission method of the above-mentioned A roller group, B roller group, and C roller group, and is suitable for short-distance transmission.

[0075] Furthermore, two adjacent first sprockets 201 are connected by chain transmission, two adjacent second sprockets 202 are connected by chain transmission, the distance between two adjacent fixed module seats 5 matches the chain length, the gap between two adjacent fixed module seats 5 is positioned by a wedge block 203, and several fixed module seats 5 on both sides of the support frame 1 are symmetrically arranged.

[0076] Based on the above technical solution, in the process of assembling the traditional chain, the length of the chain should be adjusted according to the wheelbase of the sprocket, and the chain links should be appropriately increased or decreased. The minimum unit of change is one chain link. In the transmission system with high precision requirements, there may be an error of half a chain link or less, which will cause the chain assembly to be too loose or tight, making the entire transmission system run not smoothly enough. In particular, in this device, a drive drives multiple independent roller groups to rotate through multiple chains. In order to prevent the accumulation of transmission errors from causing the entire system to stop, the transmission accuracy of each transmission unit has high requirements. Therefore, in the process of assembling the present invention, the position of each fixed module seat 5 should be appropriately adjusted in turn according to the length of the chain to ensure that the length of the chain is fully matched with the distance between the two adjacent fixed module seats. After the gap between the two adjacent fixed module seats is measured at the assembly site, a wedge block 203 matching the gap size is polished and directly assembled to the conveying system. The wedge block 203 can completely locate the position of the fixed module seat 5 to ensure that when the connection between the fixed module seat 5 and the support frame 1 is unstable, the position of the fixed module seat 5 does not move, affecting the transmission accuracy. The assembly method of the present invention can ensure that the sprocket spacing is subsequently adjustable and infinitely adjustable.

[0077] Furthermore, the wedge block 203 is provided with a base, and bolt holes are provided on the base and connected with the extension bolt holes 5.6 of the fixed module seats on both sides by bolts. The extension bolt holes 5.6 on one side of the fixed module seat are open, which is convenient for adjusting the position of the connection bolts of the wedge block 203. It ensures that the wedge block 203 is stably connected with the fixed module seats 5 on both sides.

[0078] Furthermore, the first sprocket 201 and the second sprocket 202 of each roller group form a driving sprocket group, a limit sleeve 204 and a gasket are arranged between the fixed module seat 5 and the driving sprocket group, and the driving sprocket group is sequentially provided with a gasket, a disc spring 206, a gasket and a locking ring 207 in the end face direction of the roller shaft 4; an isolation ring 205 is arranged between the first sprocket 201 and the second sprocket 202.

[0079] Based on the above technical solution, the limit sleeve 204 ensures that the assembly position of the drive sprocket group is consistent, and at the same time avoids interference between the drive sprocket group and the fixed module seat 5. The limit sleeve 204, isolation ring 205, disc spring 206 and locking ring 207 work together to axially position the first sprocket 201 and the second sprocket 202.

[0080] The working process of the present invention is as follows: the motor 2 drives the output gear of the reducer to rotate, driving the first sprocket 201 connected to the output gear of the reducer to rotate, and through the transmission connection between the adjacent first sprocket 201 and the second sprocket 202, driving all the rollers 4 to rotate, and the two rollers 6 fixedly mounted on the rollers 4 rotate to complete the transmission of the upper product.

[0081] When a roller group fails during the operation of the entire conveyor line, the failed roller group is repaired and replaced. First, the chain connected to the first sprocket 201 and the second sprocket 202 of the roller group to be replaced is removed, and then the wedge block 203 between the two adjacent fixed module seats 5 is removed, and then the connecting bolts between the two fixed module seats 5 of the roller group to be replaced and the support frame 1 are removed, and the entire roller group is replaced. During the replacement process, the lower positioning planes 5.1 at both ends of the new roller group must be positioned in coordination with the upper surface of the support frame 1, and the gap between the two adjacent fixed module seats 5 must be coordinated with the chain length. After the fixed module seats 5 at both ends are fixed, they are positioned by means of the wedge block 203, and finally the chains connected to the first sprocket 201 and the second sprocket 202 are reinstalled. At this time, the maintenance of the conveying system is completed, and the conveying system is restored to normal operation.

[0082] The present invention has the following advantages:

[0083] 1. The modular assembly method is adopted to make stocking possible and greatly shorten the production cycle;

[0084] 2. The roller module is installed in a post-installation manner. During installation, the chain can be further tensioned through the wedge block without the need for the side frame. The sprocket spacing is adjustable in a post-installation manner.

[0085] 3. The fixed module seat adopts supplementary machining to make a complete bearing chamber to improve assembly accuracy.

[0086] The above examples are only the best embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments, and many variations are possible. All variations that can be directly derived or associated with the contents disclosed by a person skilled in the art should be considered as the protection scope of the present invention.

Claims

1. Modular universal roller conveyor, characterized by: It includes a supporting frame, a driving mechanism and a plurality of roller groups, wherein the plurality of roller groups are arranged on the supporting frame in sequence, each roller group includes a roller shaft and a roller fixedly arranged on the roller shaft, the roller shaft is detachably mounted on the supporting frame through fixed module seats at both ends, one end of the roller shaft is a driving end, and the other end is a driven end, the driving end of the roller shaft is provided with a transmission assembly for driving the roller shaft to rotate, and the driving mechanism outputs power to the transmission assembly; the transmission assembly is a bevel gear transmission assembly or a sprocket transmission assembly, and the bevel gear transmission assembly and the sprocket transmission assembly can be replaced as a whole set; the roller shaft is rotatably connected to the fixed module seat; a circular assembly cavity is provided on the fixed module seat, and a bearing is assembled in the circular assembly cavity, and the roller shaft is connected to the fixed module seat through the bearing The seat is rotatably connected; a lower positioning plane is set on the lower surface of the fixed module seat, an upper positioning plane is set on the upper surface of the fixed module seat, an axial positioning plane is set on a side plane of the fixed module seat perpendicular to the axial direction of the roller shaft, and a side plane of the fixed module seat perpendicular to the radial direction of the roller shaft is recessed inward to form a radial positioning groove, and a locking positioning protrusion is set in the radial positioning groove, and the locking positioning protrusion is a circular protrusion, and two planar notches are set on the circular protrusion; the supporting frame is composed of two groups of aluminum profiles parallel to each other, and the upper surface of the aluminum profile has a notch, the lower positioning plane of the fixed module seat is matched with the upper surface of the aluminum profile, and the edges at both ends of the fixed module seat are provided with extensions, and bolt holes are opened on the extensions, and the fixed module seat is fixed and locked with the notches on the upper surface of the aluminum profile by bolts.

2. The modular universal roller track according to claim 1, characterized in that: The driving mechanism includes a motor and a reducer, and the motor and the reducer are fixed on the side wall outside the supporting frame; there are two rollers, and the two rollers are connected to the roller shaft through a key; the roller track is provided with a top cover, and the top cover cooperates with the upper positioning plane of the fixed module seat, and a plurality of empty grooves are provided on both sides of the top cover, and the rollers are arranged in a one-to-one correspondence with the empty grooves, and the rollers protrude above the top cover through the empty grooves, and dust boxes are provided outside the driving end and the driven end of the plurality of roller groups.

3. The modular universal roller track according to claim 1 or 2, characterized in that: The bevel gear transmission assembly includes a first bevel gear and a second bevel gear. The driving end of the roller shaft extends to the outside of the fixed module seat to form an extended section. The first bevel gear is assembled on the extended section of the driving end of the roller shaft. The mounting reference surface of the first bevel gear is matched with the axial positioning plane of the fixed module seat for positioning; the second bevel gear is vertically meshed with the first bevel gear, and the second bevel gears of the plurality of roller groups are coaxially and equidirectionally arranged. The second bevel gears of the plurality of roller groups are connected in series through a through shaft. A transmission gear is arranged at one end of the through shaft, and the transmission gear is transmission-connected to the output gear of the driving mechanism.

4. The modular universal roller track according to claim 3 is characterized in that: The bevel gear transmission assembly is equipped with a stop ring and a pre-tightening mechanism, one end of the stop ring is an annular portion, the annular portion of the stop ring is arranged on the through shaft through a transmission bearing sleeve, the end face of the annular portion is in contact with the second bevel gear, and the other end of the stop ring is a positioning portion, the positioning portion of the stop ring is assembled in the radial positioning groove of the fixed module seat, the upper surface of the positioning portion of the stop ring is matched with the upper surface of the radial positioning groove of the fixed module seat for positioning, the positioning portion of the stop ring is provided with a positioning slot that matches the locking positioning protrusion, a center through hole is provided at the positioning slot of the stop ring, and the locking bolt passes through the center through hole and is pressed against the surface of the locking positioning protrusion for positioning; the pre-tightening mechanism includes a sleeve mounted on the through shaft, baffles are provided at both ends of the sleeve, a compression disc spring is provided between the two baffles, one end of the compression disc spring is tightened against the second bevel gear through a gasket, the other end of the compression disc spring is connected to the fixing ring through a gasket, and the fixing ring is fastened to the through shaft by a threaded manner.

5. The modular universal roller track according to claim 4, characterized in that: The through shaft is a hexagonal shaft structure, and a hexagonal hole matching the hexagonal shaft is provided inside the sleeve; in the roller group, a detachable unit is composed of a roller shaft, two rollers on the roller shaft, a fixed module seat connected at both ends of the roller shaft, and the first bevel gear in the bevel gear transmission assembly.

6. The modular universal roller track according to claim 1 or 2, characterized in that: The sprocket transmission assembly includes a first sprocket and a second sprocket, the driving end of the roller shaft extends to the outside of the fixed module seat to form an extended section, the first sprocket and the second sprocket are fixedly assembled on the extended section of the driving end of the roller shaft, two adjacent first sprockets in a number of roller groups are transmission connected, and two adjacent second sprockets in a number of roller groups are transmission connected, the first sprocket and the second sprocket on each roller group are respectively connected to the roller groups on both sides, and the output gear of the driving mechanism drives the several roller groups on the entire roller line to rotate in a two-stage transmission mode or an end transmission mode.

7. The modular universal roller track according to claim 6, characterized in that: The two-stage transmission method is that the output gear transmission of the driving mechanism is connected to two adjacent first sprockets, and the two adjacent first sprockets are located in the middle of the entire conveying system. The two adjacent first sprockets are used as power sources to drive the roller groups on both sides to rotate in turn; the end transmission method is that the output gear transmission of the driving mechanism is connected to a first sprocket, and the one first sprocket is located at the end of the entire conveying system. The first sprocket is used as a power source to drive the roller group on one side to rotate.

8. The modular universal roller track according to claim 6, characterized in that: Two adjacent first sprockets are connected by chain transmission, two adjacent second sprockets are connected by chain transmission, the distance between two adjacent fixed module seats matches the length of the chain, the gap between two adjacent fixed module seats is positioned by a wedge block, and several fixed module seats on both sides of the support frame are symmetrically arranged; the wedge block is provided with a base, bolt holes are provided on the base and are bolted to the fixed module seats on both sides; the first sprocket and the second sprocket of each roller group form a driving sprocket group, a limiting sleeve and a gasket are provided between the fixed module seat and the driving sprocket group, and the driving sprocket group is sequentially provided with a gasket, a disc spring, a gasket and a locking ring toward the end face direction of the roller shaft; an isolation ring is provided between the first sprocket and the second sprocket.

9. The method for using the modular universal roller track according to any one of claims 1 to 8, characterized in that: A plurality of roller groups are mounted on supporting frames which are parallel to each other on both sides. The roller shafts of each roller group are detachably connected to the two sides of the supporting frame through fixed module seats at both ends. The roller shafts are rotatably connected to the fixed module seats. The driving ends of the roller shafts are equipped with bevel gear transmission components or sprocket transmission components. The bevel gear transmission components and the sprocket transmission components can be replaced with each other. Both the bevel gear transmission components and the sprocket transmission components are positioned through the fixed module seats.

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