Lightweight cross-belt sorting trolley and assembling method thereof

Abstract

The invention relates to an assembling method of a lightweight cross-belt sorting trolley, belongs to the field of logistics sorting, and aims at respectively carrying out lightweight weight reduction design on an upper conveying unit and a lower conveying unit and providing a quick assembling mode between the upper conveying unit and the lower conveying unit so as to adopt a more compact and simplified connecting means on an interconnection structure and improve the assembly efficiency. Therefore, the lightweight and modular design is realized, the load upper limit and the use efficiency are improved, and meanwhile, the workload of installation, debugging and maintenance is reduced.

Description

Technical Field

[0001] The present application belongs to the field of logistics sorting, and specifically relates to an assembly method for a cross-belt sorting trolley with an overall lightweight modular structure. Background Art

[0002] At the existing logistics sorting sites of the e-commerce and express delivery industries, sorting carts are usually used for automatic cargo transportation, sorting, and re-inspection. The traveling carts carrying cargo are circulated on the conveyor line to achieve rapid sorting, loading and unloading of cargo.

[0003] For example, the domestic patent previously applied for by the applicant, application number CN2019211804902, is named a combined sorting trolley, which has a conveying assembly arranged at the upper part and a frame assembly at the lower part. Among them, the conveying assembly includes two groups of parallel and independently arranged conveying units; on the same side of the two groups of conveying units, an accordion cover is connected together. The above-mentioned modular structural design of one vehicle and dual conveying can not only convey and sort two small packages to both sides at the same time, but also two conveying units can convey one large package at the same time and sort and unload it to the same side synchronously. The conveying units arranged in parallel are independently connected to the installation connection of the frame assembly and their respective electrical controls.

[0004] Another example is another domestic patent previously applied by the applicant, application number CN2020104732413, named Cross-belt Sorting Cart, which includes an upper conveying unit and a lower frame. The upper conveying unit includes a belt support plate and side plates connected to both sides of the belt support plate, and unpowered rollers and powered rollers are respectively provided at both ends of the side plates, and the sorting belt is wound between the belt support plate, the unpowered roller and the powered roller. A folding plate is horizontally installed on the side of each side plate, and is vertically connected to a first bent connecting plate or a second bent connecting plate; the folding plate is an integrally horizontal plate-like component, and its outer edge has multiple evenly spaced arc segments, and the arc segments of the folding plates on both sides of the same sorting trolley are meshed with each other; multiple groups of folding plate fixing plates are installed on the side of the side plate, and the folding plate fixing plates have a bent portion, and the side of the folding plate fixing plates is fixedly connected to the side plate, and the horizontal top thereof is fixedly connected to the folding plate; the first bent connecting plate and the second bent connecting plate are respectively connected to the side plate on one side, and the bottoms of the first bent connecting plate and the second bent connecting plate are respectively provided with a first mounting hole and a second mounting hole for connecting to the lower frame.

[0005] As for the above-mentioned prior art, the current horizontal circular cross belt or vertical circular cross belt sorting system still has obvious limitations: 1) The overall structure is complex and heavy, which is not conducive to improving the operating efficiency of the cross belt sorting system; 2) The number of components is still large and the manufacturing cost is still high; 3) Due to the limitation of processing accuracy, the overall installation and debugging accuracy of the trolley needs to be improved; 4) Due to the complex connection structure of the components, the overall operation stability of the trolley needs to be improved.

[0006] In view of this, this patent application is proposed. Summary of the invention

[0007] The lightweight cross-belt sorting trolley and its assembly method described in the present application are aimed at solving the problems existing in the above-mentioned prior art by respectively designing the upper and lower conveying units to be lightweight and weight-reduced, and proposing a quick assembly method between the upper and lower conveying units, so as to adopt a more compact and simplified connection method in the interconnection structure, thereby achieving lightweight and modular design, improving the load limit and utilization efficiency, and reducing the workload of installation, debugging and maintenance.

[0008] In order to achieve the above-mentioned design purpose, the assembly method of the lightweight cross-belt sorting trolley is to vertically fix and connect the upper conveying assembly and the lower walking assembly, the upper conveying assembly includes a pair of first side plates and second side plates arranged opposite to each other, and the profile connecting plate, the first pull rod, the second pull rod, the belt support plate, the servo electric roller and the unpowered roller are respectively fixedly connected between the inner sides of the first side plate and the second side plate; the trolley belt is closed-loop wound and runs between the servo electric roller and the unpowered roller, vertically above the belt support plate, and the driver is installed at the bottom of the profile connecting plate. The two ends of the unpowered roller are respectively movably connected to the first side plate and the second side plate through a group of roller adjustment mechanisms to adjust the spacing of the servo electric roller; the lower walking assembly includes a transversely arranged trolley frame, and a plurality of walking wheel assemblies and guide wheel assemblies are fixedly connected at the transverse ends of the trolley frame, one end of the intermediate profile is longitudinally connected at the center of the trolley frame, and the other end of the intermediate profile is fixedly connected to the trolley connecting seat, and the joint bearing assembly for connecting the adjacent trolleys is fixed at the front end of the trolley connecting seat, and the secondary plate is connected at the bottom of the intermediate profile.

[0009] Furthermore, the upper conveying assembly and the lower walking assembly are installed vertically laterally after being assembled respectively, and the first side plate, the second side plate and the first wing on the trolley frame and the ear seat on the trolley connecting seat are respectively installed through an array of fasteners.

[0010] Furthermore, two groups of first accordion cover connecting plates, second accordion cover connecting plates, and accordion cover supporting plates for installing the accordion cover are fixedly connected to the outer sides of the first side plate and the second side plate respectively; the two side ends of the profile connecting plate, the first pull rod and the second pull rod are fixedly connected to the first side plate and the second side plate respectively to form the overall frame structure of the upper conveying assembly.

[0011] Furthermore, a square waist groove is arranged on the vertical plate, and the roller adjustment mechanism comprises a first pad, a second pad, an adjusting nut, a live hitch bolt, a locking screw and a fastening nut; a square groove having the same shape and size as the square waist groove and parallel to each other is opened on the first pad, and the side end of the central axis of the unpowered roller passes through the square waist groove on the vertical plate and the square groove on the first pad from the inside to the outside in sequence; an adjusting nut is sleeved on the rod of the live hitch bolt, and the rod is fastened to one side of the U-shaped bending part through the adjusting nut after passing through the slot hole on the U-shaped bending part; on the other side of the U-shaped bending part, the fastening nut is sleeved on the live hitch bolt and the rotation is adjusted Tighten; the knot of the live bolt is placed laterally on the second pad, and the locking screw passes through the through hole on the knot of the live bolt and the mounting hole on the second pad from the outside to the inside in turn, and then is screwed to the end of the central axis of the unpowered roller; when the tension of the trolley belt needs to be adjusted, first loosen the adjusting nuts and fastening nuts on both sides of the U-shaped bending part, and the live bolt is released; then, the live bolt moves along its axial direction in the slot hole on the U-shaped bending part, so that the knot of the live bolt drives the end of the central axis of the unpowered roller to move back and forth in the square waist through groove on the vertical plate and the square groove on the first pad at the same time, so as to adjust the center distance between the unpowered roller and the servo electric roller.

[0012] Furthermore, the profile connecting plate has an overall U-shaped cross-sectional structure, and two sets of integrally formed, full-length mounting ribs with concave arc grooves are arranged in parallel on both sides of the T-shaped reinforcement ribs; the driver is fixedly mounted on the profile connecting plate by inserting an array of bolts into the concave arc grooves of the mounting ribs on both sides.

[0013] Furthermore, the assembly process of the upper conveying assembly includes the following steps:

[0014] 1) Assembly of trolley belt;

[0015] First, the belt support plate is fixedly connected to the inner side of the first side plate by fasteners;

[0016] Secondly, pass the central shaft end of the servo motorized roller through the roller fixing groove on the first side plate, and pass the central shaft end of the unpowered roller through the square waist groove on the first side plate;

[0017] Then, the trolley belt is wound in a closed loop and runs between the servo motorized roller and the unpowered roller, vertically above the belt support plate;

[0018] Pass the other side of the central axis of the servo motorized roller through the roller fixing groove on the second side plate, and pass the other side of the central axis of the unpowered roller through the square waist groove on the second side plate;

[0019] Finally, the inner side of the second side plate is fixedly connected to the belt support plate by fasteners;

[0020] 2) forming the upper frame;

[0021] The profile connecting plate, the first tie rod and the second tie rod are respectively fixedly connected between the first side plate and the second side plate through fasteners;

[0022] 3) Shaft end installation of unpowered roller;

[0023] 4) Installation and connection of the driver;

[0024] Install both sides of the driver on the profile connecting plate;

[0025] Pass the cable of the servo motor drum through the cable hole of the upper frame to connect the driver.

[0026] Furthermore, when installing the guide wheel assembly, first, the guide wheel axle is passed through the guide wheel, the prism passes through and is connected to the bearing in the inner cavity of the guide wheel, the first flat washer, the first spring washer and the first shaft end nut are respectively sleeved on the shaft end threaded portion on one side of the prism, and locked from the outside to the inside at the step formed at the outer end of the prism; then, the axial surface body of the guide wheel axle is passed from the bottom of the trolley frame into the guide mounting hole of the groove, the second flat washer, the second spring washer and the second shaft end nut are sleeved on the shaft end threaded portion on one side of the axial surface body from bottom to top, and locked at the step formed at the outer end of the axial surface body.

[0027] Furthermore, when installing the travel wheel assembly, first, place the travel wheel in the front opening of the rotating seat, place the third spacer in the inner ring bearing of the travel wheel from one side, and stick the fourth spacer to the end face of the inner ring bearing of the travel wheel from the other side; secondly, insert the travel wheel shaft into the rotating shaft through-hole of the rotating seat from one side, and then pass through the third spacer, the fourth spacer and the rotating shaft through-hole on the other side in sequence, and set a nut and washer combination on the threaded shaft end of the passing side of the travel wheel shaft to lock and fix it to the side end of the fourth spacer, thereby completing the installation of the travel wheel in the front opening of the rotating seat. ; Then, place the first spacer in the through-hole of the rotating shaft of the rotating seat, and place the rotating seat and the installed traveling wheel in the steering groove of the trolley frame together; the rotating shaft passes through the traveling mounting hole on one side of the trolley frame, the through-hole of the rotating shaft, the first spacer and the traveling mounting hole on the other side in the vertical direction in sequence, and the second spacer is sleeved on the protruding part of the rotating shaft and is screwed and tightened axially at the end of the shaft by fixing screws; after tightening, the head of the rotating shaft abuts against the outer end face of one side of the fourth wing of the trolley frame, and the end flange of the second spacer abuts against the outer end face of the other side of the fourth wing of the trolley frame.

[0028] Furthermore, when installing the joint bearing, the axial end of the rod end joint bearing is inserted into the bearing mounting hole at the front end of the trolley connecting seat, and two sets of nuts and anti-loosening washers are sleeved on the axial end of the rod end joint bearing, and the two sets of nuts and anti-loosening washers are respectively installed and fastened from the inner and outer sides of the front end of the trolley connecting seat; the end of the rod end joint bearing and the two sets of bearing spacers located on both sides thereof are placed together in the second wing of the trolley frame, and the axial end of the bearing pin passes through the pin mounting hole on one side of the second wing, a set of bearing spacers, the end of the rod end joint bearing, another set of bearing spacers and the pin mounting hole on the other side of the second wing in sequence, and is fastened and connected by a bearing fastener at the axial end of the bearing pin that passes through.

[0029] Furthermore, when installing the secondary board, one end of the intermediate profile is longitudinally connected to the center of the trolley frame, the other end of the intermediate profile is fixedly connected to the trolley connecting seat, and the secondary board is connected to the bottom of the intermediate profile.

[0030] In summary, the assembly method of the lightweight cross-belt sorting trolley has the following advantages:

[0031] 1. The whole vehicle has achieved complete modular structure improvement, with compact connection between the upper and lower parts, which is beneficial to reducing the weight of the sorting trolley; correspondingly improving the assembly and on-site operation efficiency of the whole vehicle, and also helping to reduce manufacturing and use costs.

[0032] 2. The present application significantly optimizes the structural connection method of the upper conveying unit, using the two side plates as the central components for installation and correction, which can achieve lightweight while being suitable for sorting goods with larger volume and weight.

[0033] 3. This application has the characteristics of a high degree of modularity, and the connection structure is optimized, so it can effectively improve the scalability of the entire vehicle design and provide a good interface and foundation for subsequent further improvements.

[0034] 4. This application can reduce the workload of vehicle installation, commissioning and maintenance.

[0035] 5. The present application effectively reduces the number of installed and connected parts, and the manufacturing and assembly precision can be further reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The present application will now be further described with reference to the following drawings.

[0037] Figure 1 It is an exploded schematic diagram of the lightweight cross-belt sorting trolley described in the present application;

[0038] Figure 2 is a schematic diagram of the structure of the lower frame assembly;

[0039] Figure 3 Yes Figure 2Axial exploded schematic diagram of the structure shown;

[0040] Figure 4 and Figure 5 are structural schematic diagrams of the first side plate and the second side plate respectively;

[0041] Figure 6 This is a schematic diagram of the installation of the end of the unpowered roller;

[0042] Figure 7 Yes Figure 6 Axial exploded schematic diagram of the structure shown;

[0043] Figure 8 is a schematic diagram of a transverse cross section of a drive mounting profile;

[0044] Figures 9 to 11 They are structural schematic diagrams of the upper conveying unit from different perspectives;

[0045] Fig.12 It is a schematic diagram of the axial installation of the upper conveying unit;

[0046] Fig.13 It is a structural diagram of the small vehicle frame;

[0047] Figure 14-1 is a structural schematic diagram of a guide wheel assembly;

[0048] Figure 14-2 Yes Figure 14-1 An exploded schematic diagram of the structure shown;

[0049] Figure 15-1 1 is a schematic diagram of the structure of the travel wheel assembly;

[0050] Figure 15-2 yes Figure 15-1 Structural schematic diagram of the middle rotating seat;

[0051] Figure 15-3 They are Figure 15-1 An exploded schematic diagram of the structure shown;

[0052] Figure 16-1 This is a schematic diagram of the installation of spherical bearings;

[0053] Figure 16-2 yes Figure 16-1 Structural diagram of the small and medium vehicle connection seat; DETAILED DESCRIPTION

[0054] Embodiment 1, as Figure 1 to Figure 16-2 As shown, a novel lightweight cross-belt sorting trolley includes an upper conveying assembly 100 and a lower walking assembly 200 which are fixedly connected vertically.

[0055] like Figures 9 to 12As shown, the upper conveying assembly 100 comprises a pair of first side plates 1 and second side plates 2 disposed opposite to each other, and a profile connecting plate 4, a first pull rod 8, a second pull rod 9, a belt supporting plate 14, a servo electric roller 15 and a non-powered roller 16 are respectively fixedly connected between the inner sides of the first side plates 1 and the second side plates 2;

[0056] The trolley belt 13 is wound in a closed loop and runs between the servo electric roller 15 and the unpowered roller 16, vertically above the belt support plate 14. A driver 5 for transmitting signals and controlling the servo electric roller 15 is installed at the bottom of the profile connecting plate 4. The two ends of the unpowered roller 16 are movably connected to the first side plate 1 and the second side plate 2 through a group of roller adjustment mechanisms 3, respectively, so that the spacing between the servo electric rollers 15 can be adjusted.

[0057] Two groups of first accordion cover connecting plates 11 , second accordion cover connecting plates 12 , and accordion cover supporting plates 7 for mounting the accordion cover 10 are fixedly connected to the outer sides of the first side plate 1 and the second side plate 2 .

[0058] The first tie rod 8 and the second tie rod 9 are both triangular-shaped profiles, and the two side ends of the profile connecting plate 4, the first tie rod 8 and the second tie rod 9 are respectively fixedly connected to the first side plate 1 and the second side plate 2 to form the overall frame structure of the upper conveying assembly 100;

[0059] like Figure 4 and Figure 5 As shown, the first side plate 1 and the second side plate 2 have the same overall structure. Taking the structural design of the first side plate 1 as an example, the first side plate 1 is composed of a bent plate 01 and a U-shaped bent piece 02 whose side is welded and fixed to the bent plate 01;

[0060] The bending plate 01 is made of a sheet profile through cold plate mold bending, and is composed of a vertical plate 05 and a horizontal plate 04 to form an L-shaped overall structure. An array of reinforcing protruding ribs 06 that are formed by stamping and have an inwardly concave arc strip structure are provided on the vertical plate 05. The reinforcing protruding ribs 06 are used to strengthen the overall rigidity and strength of the bending plate 01, so that it is not easy to deform when the first side plate 1 is subsequently connected to the profile connecting plate 4, the first pull rod 8, and the second pull rod 9 respectively, and provide structural guarantee for the overall stability of the upper conveying component 100.

[0061] Arrays of horizontal punched screw holes 07 are respectively arranged on the horizontal plate 04, and arrays of vertically distributed bending parts are connected to both sides of the vertical plate 05, and each bending part is provided with a vertical punched screw hole 08; the horizontal punched screw holes 07 and the vertical punched screw holes 08 are used to improve the stability of the fastening connection and reduce the difficulty of installation. If the welding nut method is adopted here, it is easy to cause welding deformation of the first side plate 1 when other components are welded to the first side plate 1, but the horizontal punched screw holes 07 and the vertical punched screw holes 08 can avoid such a situation.

[0062] A wiring hole 09 is provided on the vertical plate 05, and an annular protective cover 6 is provided on the wiring hole 09. The power line and signal line of the servo motor drum 15 can be led from the inside of the upper frame to the outside through the wiring hole 09, so that the wiring connection of the servo motor drum 15 is not easily scratched.

[0063] Two groups of vertically distributed through grooves 021 are symmetrically arranged at the bottom end of the vertical plate 05, so as to realize the fixed connection between the upper conveying assembly 100 and the lower traveling assembly 200 through fasteners, which can realize and simplify the vertical side installation between the upper conveying assembly 100 and the lower traveling assembly 200, and facilitate disassembly and maintenance;

[0064] The U-shaped bending part 02 is provided with a slot 03 for movably connecting the unpowered roller 16 through the roller adjustment mechanism 3;

[0065] like Figure 6 and Figure 7 As shown, a square waist through groove 022 is provided on the vertical plate 05, and the roller adjustment mechanism 3 includes a first pad 010, a second pad 011, an adjustment nut 012, a live bolt 013, a locking screw 014 and a fastening nut 015;

[0066] A square groove 010-1 having the same shape and size as the square waist groove 022 and being parallel to each other is provided on the first pad 010. The side end of the central axis of the unpowered roller 16 passes through the square waist groove 022 on the vertical plate 05 and the square groove 010-1 on the first pad 010 from the inside to the outside in sequence; after passing through, the central axis is restricted from rotating in the circumferential direction;

[0067] An adjusting nut 012 is sleeved on the rod of the live bolt 013, and the rod passes through the slotted hole 03 on the U-shaped bending part 02 and is fastened to one side of the U-shaped bending part 02 by the adjusting nut 012; on the other side of the U-shaped bending part 02, the fastening nut 015 is sleeved on the live bolt 013 and adjusted and tightened; the knot of the live bolt 013 is laterally placed on the second pad 011, and the locking screw 014 passes through the through hole on the knot of the live bolt 013 and the mounting hole 011-1 on the second pad 011 from the outside to the inside, and is then screwed to the end of the central axis of the unpowered roller 16, thereby completing the fixing of the end of the axis of the unpowered roller 16.

[0068] When the tension of the trolley belt 13 needs to be adjusted, the two ends of the servo electric roller 15 are fixedly connected between the first side plate 1 and the second side plate 2, and the distance between the non-powered roller 16 and the servo electric roller 15 can be adjusted through the above-mentioned roller adjustment mechanism 3. Specifically, first loosen the adjustment nuts 012 and the fastening nuts 015 on both sides of the U-shaped bending part 02, and the slipknot bolt 013 is released; then, the slipknot bolt 013 moves along its axial direction in the slot hole 03 on the U-shaped bending part 02, so that the end of the central axis of the non-powered roller 16 is driven by the knot of the slipknot bolt 013 to reciprocate in the square waist through groove 022 on the vertical plate 05 and the square groove 010-1 on the first pad 010, so as to adjust the center distance between the non-powered roller 16 and the servo electric roller 15, and finally realize the tension adjustment of the trolley belt 13.

[0069] like Figure 8 As shown, the profile connecting plate 4 has an overall U-shaped cross-sectional structure, and an integrally formed through-length T-shaped reinforcing rib 041 is disposed in the center of the U-shaped structure, and two sets of integrally formed through-length mounting ribs 042 with concave arc grooves are disposed in parallel on both sides of the T-shaped reinforcing rib 041;

[0070] The driver 5 is fixedly mounted on the profile connecting plate 4 by inserting an array of bolts into the concave arc grooves of the mounting ribs 042 on both sides.

[0071] like Fig.12 As shown, based on the structural design of the upper conveying assembly 100, the modular assembly process of the upper conveying assembly 100 can be realized based on the first side plate 1 and the second side plate 2, including the following steps:

[0072] 1) Assembly of trolley belt;

[0073] First, the belt support plate 14 is fixedly connected to the inner side of the first side plate 1 by fasteners;

[0074] Secondly, the central axis end of the servo motorized roller 15 passes through the roller fixing groove 023 on the first side plate 1, and the central axis end of the unpowered roller 16 passes through the square waist through groove 022 on the first side plate 1;

[0075] Then, the trolley belt 13 is wound in a closed loop and runs between the servo motorized roller 15 and the unpowered roller 16, vertically above the belt support plate 14;

[0076] Pass the other side of the central axis of the servo motorized roller 15 through the roller fixing groove 023 on the second side plate 2, and pass the other side of the central axis of the unpowered roller 16 through the square waist groove 022 on the second side plate 2;

[0077] Finally, the inner side of the second side plate 2 is fixedly connected to the belt support plate 14 by fasteners;

[0078] 2) forming the upper frame;

[0079] The profile connecting plate 4, the first tie rod 8 and the second tie rod 9 are respectively fixedly connected between the first side plate 1 and the second side plate 2 by fasteners;

[0080] 3) The shaft end of the unpowered roller 16 is installed;

[0081] First, the central axis side end of the unpowered roller 16 passes through the square groove 010-1 on the first pad 010 and the mounting hole 011-1 on the second pad 011 from the inside to the outside in sequence;

[0082] Secondly, an adjusting nut 012 is sleeved on the rod of the live bolt 013, and the rod passes through the slotted hole 03 on the U-shaped bending part 02 and is fastened to one side of the U-shaped bending part 02 by the adjusting nut 012; on the other side of the U-shaped bending part 02, a fastening nut 015 is sleeved on the live bolt 013 and adjusted and tightened, so that the rod of the live bolt 013 is fastened to the U-shaped bending part 02 along the axial direction;

[0083] Then, the knot of the slip bolt 013 is placed sideways on the second pad 011, and the locking screw 014 is passed through the through hole on the knot of the slip bolt 013 and the mounting hole 011-1 on the second pad 011 from the outside to the inside, and then screwed to the end of the central axis of the non-powered roller 16, and the end of the central axis of the non-powered roller 16 is fastened to the knot of the slip bolt 013;

[0084] 4) Installation and connection of driver 5;

[0085] By inserting the array of bolts into the concave arc grooves of the mounting ribs 042 respectively, the two sides of the driver 5 are mounted on the profile connecting plate 4;

[0086] The wiring of the servo electric roller 15 (including power lines and signal control lines, etc.) passes through the wiring hole 09 of the upper frame to connect to the driver 5, and then the driver 5 adjusts and controls the parameters such as the rotation direction and speed of the servo electric roller 15.

[0087] Furthermore, when the tension of the trolley belt 13 needs to be adjusted, first loosen the adjusting nuts 012 and the fastening nuts 015 on both sides of the U-shaped bending part 02, so that the hitch bolt 013 is released; then, move the hitch bolt 013 axially in the slot hole 03 of the U-shaped bending part 02, so that the end of the central axis of the unpowered roller 16 is driven by the knot of the hitch bolt 013 to move simultaneously in the square waist groove 022 on the vertical plate 05 and the square groove 010-1 on the first pad 010, so as to adjust the center distance between the unpowered roller 16 and the servo electric roller 15, and finally realize the tension adjustment of the trolley belt 13.

[0088] like Figure 2 and Figure 3 As shown, the lower walking assembly 200 includes a trolley frame 20 arranged transversely, and a plurality of walking wheel assemblies 24 and a guide wheel assembly 23 are fixedly connected to the lateral ends of the trolley frame 20, one end of an intermediate profile 21 is longitudinally connected to the center of the trolley frame 20, and the other end of the intermediate profile 21 is fixedly connected to a trolley connecting seat 26, and a joint bearing assembly 25 for connecting an adjacent trolley is fixed to the front end of the trolley connecting seat 26, and a secondary plate 22 is connected to the bottom of the intermediate profile 21;

[0089] Among them, Fig.13 As shown, the trolley frame 20 has an integrally formed structure, and its interior includes a groove portion 201 formed by a plurality of reinforcing ribs, and guide mounting holes 203 for mounting the guide wheel assembly 23 are arranged at the bottom of at least two groove portions 201; a pair of first wings distributed in parallel and respectively having a group of second connecting holes 202 for fixed connection with the upper conveying assembly 100 are formed at the top edge of the trolley frame 20; a group of second wings with pin mounting holes 206 for mounting the pins of the joint bearing assembly 25 and a group of third wings for mounting the intermediate profile 21 are respectively formed on both sides of the trolley frame 20; a group of fourth wings with travel mounting holes 204 for mounting the travel wheel assembly 24 are respectively formed at both ends of the trolley frame 20, and the fourth wings form steering grooves 205 at both ends of the trolley frame 20 to provide a rotation space for the travel wheel assembly 243;

[0090] like Figure 14-1 and Figure 14-2As shown, the guide wheel assembly 23 includes a guide wheel 2301 and a guide wheel shaft 2302. The guide wheel shaft 2302 has a prism 2300 and a columnar shaft body 2309 connected as an integral structure. The outer ends of the prism 2300 and the shaft body 2309 are respectively connected with a group of shaft end threaded parts; the prism 2300 penetrates and is connected to the bearing in the inner cavity of the guide wheel 2301. The first flat washer 2306, the first spring washer 2307 and the first shaft end nut 2308 are connected to the guide wheel 2301. 08 are respectively sleeved on the shaft end threaded portion on one side of the prism 2300, and locked from the outside to the inside at the step formed at the outer end of the prism 2300; the shaft surface body 2309 is inserted into the guide mounting hole 203 of the groove portion 201 from the bottom of the small frame 20, and the second flat washer 2303, the second spring washer 2302 and the second shaft end nut 2301 are sleeved on the shaft end threaded portion on one side of the shaft surface body 2309 from bottom to top, and locked at the step formed at the outer end of the shaft surface body 2309;

[0091] like Figure 15-1 to Figure 15-3 As shown, the travel wheel assembly 24 includes a travel wheel 2409 and a rotating seat 2402. The rotating seat 2402 is a U-shaped structure with an opening at the front, and the opening has a pair of horizontally distributed wheel axle through holes 2411, and a vertically distributed rotating shaft through hole 2412 at the rear.

[0092] The running wheel 2409 is placed in the front opening of the rotating seat 2402, the third spacer 2407 is placed in the inner ring bearing of the running wheel 2409 from one side, and the fourth spacer 2408 is attached to the end surface of the inner ring bearing of the running wheel 2409 from the other side;

[0093] After the travel wheel shaft 2406 is inserted from one side into the rotation shaft through hole 2412 of the rotating seat 2402, it passes through the third spacer 2407, the fourth spacer 2408 and the rotation shaft through hole 2412 on the other side in sequence, and a nut washer assembly 2410 is sleeved on the threaded shaft end of the travel wheel shaft 2406 passing through the side to lock and fix it on the side end of the fourth spacer 2408, thereby completing the installation of the travel wheel 2409 on the front opening of the rotating seat 2402;

[0094] The first spacer 2403 is placed in the rotating shaft through-hole 2412 of the rotating seat 2402, and the rotating seat 2402 and the installed walking wheel 2409 are placed together in the steering groove 205 of the trolley frame 20; the rotating shaft 2401 vertically passes through the walking installation hole 204, the rotating shaft through-hole 2412, the first spacer 2403 and the walking installation hole 204 on one side of the trolley frame 20 in sequence, and the second spacer 2404 is sleeved on the passing part of the rotating shaft 2401 and is screwed and tightened axially by the fixing screw 2405 at the shaft end; after tightening, the head of the rotating shaft 2401 (opposite to the shaft end with internal thread) abuts against the outer end face of one side of the fourth wing of the trolley frame 20, and the end flange of the second spacer 2404 abuts against the outer end face of the other side of the fourth wing of the trolley frame 20, and now the entire installation of the walking wheel assembly 24 on the trolley frame 20 is completed;

[0095] like Figure 16-1 As shown, the joint bearing assembly 25 includes a rod end joint bearing 2501, the shaft end of the rod end joint bearing 2501 is inserted into the bearing mounting hole 2601 at the front end of the trolley connecting seat 26, and two sets of nuts and anti-loosening washers 2505 are sleeved on the shaft end of the rod end joint bearing 2501, and the two sets of nuts and anti-loosening washers 2505 are respectively installed and fastened from the inner and outer sides of the front end of the trolley connecting seat 26;

[0096] The end of the rod end joint bearing 2501 and two groups of bearing spacers 2503 located on both sides thereof are placed together in the second wing of the trolley frame 20, and the axial end of the bearing pin 2502 passes through the pin mounting hole 206 on one side of the second wing, a group of bearing spacers 2503, the end of the rod end joint bearing 2501, another group of bearing spacers 2503 and the pin mounting hole 206 on the other side of the second wing in sequence, and is fastened and connected by a bearing fastener 2504 at the axial end of the bearing pin 2502 that passes through.

[0097] like Figure 16-2 As shown, the trolley connection seat 26 has a base, a bearing mounting hole 2601 is arranged at the front end of the base, an array of side mounting holes 2602 fixedly connected to the middle profile 21 are arranged on both sides of the base, and two groups of ear seats 2603 with a bending structure and integrally formed with the base are symmetrically arranged on both sides of the top of the base, and each group of ear seats 2603 is provided with a group of first connecting holes 201 for connecting the upper conveying assembly;

[0098] Based on the structural design of the lower traveling assembly 200, a modular assembly process including the following steps may be implemented:

[0099] 1) Installation of guide wheel assembly;

[0100] First, the guide wheel shaft 2302 passes through the guide wheel 2301, and the prism 2300 passes through and is connected to the bearing in the inner cavity of the guide wheel 2301. The first flat washer 2306, the first spring washer 2307 and the first shaft end nut 2308 are respectively sleeved on the shaft end threaded portion on one side of the prism 2300, and are locked from the outside to the inside at the step formed on the outer end of the prism 2300;

[0101] Then, the axial surface body 2309 of the guide wheel axle 2302 is inserted from the bottom of the small frame 20 into the guide installation hole 203 of the groove part 201, and the second flat washer 2303, the second spring washer 2302 and the second shaft end nut 2301 are sleeved from bottom to top on the shaft end threaded part on one side of the axial surface body 2309 and locked at the step formed on the outer end of the axial surface body 2309;

[0102] 2) Installation of the traveling wheel assembly;

[0103] First, the running wheel 2409 is placed in the front opening of the rotating seat 2402, the third spacer 2407 is placed in the inner ring bearing of the running wheel 2409 from one side, and the fourth spacer 2408 is attached to the end surface of the inner ring bearing of the running wheel 2409 from the other side;

[0104] Secondly, after the walking wheel shaft 2406 is inserted from one side into the rotating shaft through hole 2412 of the rotating seat 2402, it passes through the third spacer 2407, the fourth spacer 2408 and the rotating shaft through hole 2412 on the other side in sequence, and a nut washer assembly 2410 is sleeved on the threaded shaft end of the walking wheel shaft 2406 passing through the side to lock and fix it to the side end of the fourth spacer 2408, thereby completing the installation of the walking wheel 2409 on the front opening of the rotating seat 2402;

[0105] Then, the first spacer sleeve 2403 is placed in the rotating shaft through hole 2412 of the rotating seat 2402, and the rotating seat 2402 and the installed walking wheel 2409 are placed in the steering groove 205 of the trolley frame 20 together; the rotating shaft 2401 vertically passes through the walking installation hole 204, the rotating shaft through hole 2412, the first spacer sleeve 2403 and the walking installation hole 204 on one side of the trolley frame 20 in sequence, and the second spacer sleeve 2404 is sleeved on the passing part of the rotating shaft 2401 and is screwed and tightened axially by the fixing screw 2405 at the shaft end; after tightening, the head of the rotating shaft 2401 (opposite to the shaft end with internal thread) abuts against the outer end face of one side of the fourth wing of the trolley frame 20, and the end flange of the second spacer sleeve 2404 abuts against the outer end face of the other side of the fourth wing of the trolley frame 20;

[0106] 3) Installation of spherical bearings;

[0107] Insert the shaft end of the rod end joint bearing 2501 into the bearing mounting hole 2601 at the front end of the trolley connecting seat 26, and sleeve two sets of nuts and anti-loosening washers 2505 on the shaft end of the rod end joint bearing 2501. The two sets of nuts and anti-loosening washers 2505 are respectively installed and fastened from the inner and outer sides of the front end of the trolley connecting seat 26;

[0108] The end of the rod end joint bearing 2501 and two groups of bearing spacers 2503 located on both sides thereof are placed together in the second wing of the trolley frame 20, and the axial end of the bearing pin 2502 passes through the pin mounting hole 206 on one side of the second wing, a group of bearing spacers 2503, the end of the rod end joint bearing 2501, another group of bearing spacers 2503 and the pin mounting hole 206 on the other side of the second wing in sequence, and is fastened and connected by a bearing fastener 2504 at the axial end of the bearing pin 2502 that passes through.

[0109] 4) Installation of secondary board;

[0110] One end of the intermediate profile 21 is longitudinally connected to the center of the trolley frame 20, the other end of the intermediate profile 21 is fixedly connected to the trolley connecting seat 26, and the secondary plate 22 is connected to the bottom of the intermediate profile 21;

[0111] Thereby, the modular assembly of the lower traveling assembly 200 is completed.

[0112] As described above, the lightweight cross-belt sorting cart proposed in the present application adopts a modular structural design, including a modular design of the upper conveying component 100, a modular design of the lower walking component 200, and a modular design of the assembly connection between the two.

[0113] like Figure 1 As shown, after the upper conveying component 100 and the lower walking component 200 are assembled respectively, the first side plate 1, the second side plate 2 and the first wing on the trolley frame 20, and the ear seat 2603 on the trolley connecting seat 26 are respectively installed through an array of fasteners, that is, the fasteners respectively pass through the through groove 021 and the first connecting hole 201 and the second connecting hole 202 for locking, and the vertical side installation method between the upper conveying component 100 and the lower walking component 200 can be faster and more convenient for the installation, debugging and subsequent maintenance and disassembly operations between the two.

[0114] In summary, the embodiments given in the accompanying drawings are only preferred solutions. Those skilled in the art can be inspired by this and directly deduce other alternative structures that are consistent with the design concept of the present invention, which should also fall within the scope of the solution described in the present invention.

Claims

1. A method for assembling a lightweight cross-belt sorting trolley, characterized in that: The upper conveying assembly and the lower walking assembly are fixedly connected vertically, and the upper conveying assembly includes a pair of first side plates and second side plates arranged opposite to each other, and the profile connecting plate, the first pull rod, the second pull rod, the belt support plate, the servo electric roller and the unpowered roller are fixedly connected between the inner sides of the first side plate and the second side plate respectively; the trolley belt is wound in a closed loop and runs between the servo electric roller and the unpowered roller, vertically above the belt support plate, and a driver is installed at the bottom of the profile connecting plate, and the two ends of the unpowered roller are respectively movably connected to the first side plate and the second side plate through a group of roller adjustment mechanisms to adjust the spacing of the servo electric roller; The lower walking assembly includes a transversely arranged trolley frame, with an array of walking wheel assemblies and guide wheel assemblies fixedly connected at both lateral ends of the trolley frame, one end of an intermediate profile longitudinally connected to the center of the trolley frame, the other end of the intermediate profile fixedly connected to a trolley connecting seat, a joint bearing assembly for connecting an adjacent trolley fixed at the front end of the trolley connecting seat, and a secondary plate connected to the bottom of the intermediate profile.

2. The method for assembling a lightweight cross-belt sorting vehicle according to claim 1, characterized in that: The upper conveying assembly and the lower walking assembly are installed vertically laterally after being assembled respectively, and the first side plate, the second side plate and the first wing on the trolley frame and the ear seat on the trolley connecting seat are installed respectively through array fasteners.

3. The method for assembling a lightweight cross-belt sorting trolley according to claim 1 or 2, characterized in that: Two groups of first accordion cover connecting plates, second accordion cover connecting plates, and accordion cover supporting plates for installing the accordion cover are fixedly connected to the outer sides of the first side plate and the second side plate respectively; The two side ends of the profile connecting plate, the first pull rod and the second pull rod are respectively fixedly connected to the first side plate and the second side plate to form an overall frame structure of the upper conveying assembly.

4. The method for assembling a lightweight cross-belt sorting vehicle according to claim 1 or 2, characterized in that: A square waist through groove is arranged on the vertical plate, and the roller adjustment mechanism comprises a first pad, a second pad, an adjustment nut, a slipknot bolt, a locking screw and a fastening nut; A square groove having the same shape and size as the square waist groove and being parallel to each other is opened on the first pad, and the side end of the central axis of the unpowered roller passes through the square waist groove on the vertical plate and the square groove on the first pad in sequence from inside to outside; An adjusting nut is sleeved on the rod of the live bolt, and the rod passes through the slotted hole on the U-shaped bending part and is fastened to one side of the U-shaped bending part through the adjusting nut; on the other side of the U-shaped bending part, the fastening nut is sleeved on the live bolt and adjusted and tightened; the knot of the live bolt is laterally placed on the second pad, and the locking screw passes through the through hole on the knot of the live bolt and the mounting hole on the second pad from the outside to the inside in sequence, and is then screwed to the end of the central shaft of the unpowered roller; When the tension of the trolley belt needs to be adjusted, first loosen the adjusting nuts and fastening nuts on both sides of the U-shaped bending part to release the slipknot bolt; then, the slipknot bolt moves along its axial direction in the slot hole on the U-shaped bending part, so that the end of the central axis of the unpowered roller is driven by the knot of the slipknot bolt to reciprocate in the square waist groove on the vertical plate and the square groove on the first pad at the same time, so as to adjust the center distance between the unpowered roller and the servo motor roller.

5. The method for assembling a lightweight cross-belt sorting vehicle according to claim 1, characterized in that: The profile connecting plate has an overall U-shaped cross-sectional structure, and two sets of integrally processed and formed through-length mounting ribs with concave arc grooves are arranged in parallel on both sides of the T-shaped reinforcing ribs; The driver is fixedly mounted on the profile connecting plate by inserting array bolts into the concave arc grooves of the mounting ribs on both sides.

6. The method for assembling a lightweight cross-belt sorting vehicle according to claim 1, characterized in that: The assembly process of the upper conveying assembly includes the following steps: 1) Assembly of trolley belt; First, the belt support plate is fixedly connected to the inner side of the first side plate by fasteners; Secondly, pass the central shaft end of the servo motorized roller through the roller fixing groove on the first side plate, and pass the central shaft end of the unpowered roller through the square waist groove on the first side plate; Then, the trolley belt is wound in a closed loop and runs between the servo motorized roller and the unpowered roller, vertically above the belt support plate; Pass the other side of the central axis of the servo motorized roller through the roller fixing groove on the second side plate, and pass the other side of the central axis of the unpowered roller through the square waist groove on the second side plate; Finally, the inner side of the second side plate is fixedly connected to the belt support plate by fasteners; 2) forming the upper frame; The profile connecting plate, the first tie rod and the second tie rod are respectively fixedly connected between the first side plate and the second side plate through fasteners; 3) Shaft end installation of unpowered roller; 4) Installation and connection of the driver; Install both sides of the driver on the profile connecting plate; Pass the cable of the servo motor drum through the cable hole of the upper frame to connect the driver.

7. The method for assembling a lightweight cross-belt sorting vehicle according to claim 1, characterized in that: When installing the guide wheel assembly, first, pass the guide wheel shaft through the guide wheel, and the prism body penetrates and is connected to the bearing in the inner cavity of the guide wheel. The first flat washer, the first spring washer and the first shaft end nut are respectively sleeved on the shaft end threaded portion on one side of the prism body, and locked from the outside to the inside at the step formed on the outer end of the prism body; Then, the axial surface body of the guide wheel axle is inserted into the guide mounting hole of the groove from the bottom of the trolley frame, and the second flat washer, the second spring washer and the second shaft end nut are sleeved from bottom to top on the shaft end threaded portion on one side of the axial surface body and locked at the step formed on the outer end of the axial surface body.

8. The method for assembling a lightweight cross-belt sorting vehicle according to claim 1, characterized in that: When installing the travel wheel assembly, first, place the travel wheel in the front opening of the rotating seat, place the third spacer in the inner ring bearing of the travel wheel from one side, and attach the fourth spacer to the end face of the inner ring bearing of the travel wheel from the other side; Secondly, insert the travel wheel shaft into the rotating shaft through-hole of the rotating seat from one side, and then sequentially pass through the third spacer, the fourth spacer and the rotating shaft through-hole on the other side, and set a nut and washer combination on the threaded shaft end of the travel wheel shaft passing through the side to lock and fix it on the side end of the fourth spacer, thereby completing the installation of the travel wheel on the front opening of the rotating seat; Then, place the first spacer in the through-hole of the rotating shaft of the rotating seat, and place the rotating seat and the installed traveling wheel in the steering groove of the trolley frame together; the rotating shaft passes through the traveling mounting hole on one side of the trolley frame, the through-hole of the rotating shaft, the first spacer and the traveling mounting hole on the other side in the vertical direction in sequence, and the second spacer is sleeved on the protruding part of the rotating shaft and is screwed and tightened axially at the end of the shaft by fixing screws; after tightening, the head of the rotating shaft abuts against the outer end face of one side of the fourth wing of the trolley frame, and the end flange of the second spacer abuts against the outer end face of the other side of the fourth wing of the trolley frame.

9. The method for assembling a lightweight cross-belt sorting vehicle according to claim 1, characterized in that: When installing the spherical bearing, insert the shaft end of the rod end spherical bearing into the bearing installation hole at the front end of the trolley connection seat, and sleeve two sets of nuts and anti-loosening washers on the shaft end of the rod end spherical bearing. The two sets of nuts and anti-loosening washers are installed and tightened on the inner and outer sides of the front end of the trolley connection seat respectively; The end of the rod end joint bearing and two groups of bearing spacers on both sides thereof are placed together in the second wing of the trolley frame. The shaft end of the bearing pin passes through the pin mounting hole on one side of the second wing, a group of bearing spacers, the end of the rod end joint bearing, another group of bearing spacers and the pin mounting hole on the other side of the second wing in sequence, and is fastened and connected by a bearing fastener at the shaft end of the bearing pin that passes through.

10. The method for assembling a lightweight cross-belt sorting vehicle according to claim 1, characterized in that: When installing the secondary board, one end of the intermediate profile is longitudinally connected to the center of the trolley frame, the other end of the intermediate profile is fixedly connected to the trolley connecting seat, and the secondary board is connected to the bottom of the intermediate profile.

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