Lightweight cross-belt sorting trolley

Abstract

The utility model relates to a light-weight cross-belt sorting trolley, which belongs to the field of logistics sorting and aims at respectively carrying out light-weight and weight-reduction design on an upper conveying unit and a lower conveying unit and providing a quick assembly mode between the upper conveying unit and the lower conveying unit so as to adopt a more compact and simplified connection means on an interconnection structure. 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. Comprising an upper conveying assembly and a lower walking assembly which are fixedly connected in the vertical direction, the upper conveying assembly comprises a first side plate and a second side plate which are oppositely arranged, and a profile connecting plate, a first pull rod, a second pull rod, a belt supporting plate, a servo electric roller and an unpowered roller are fixedly connected between the inner side of the first side plate and the inner side of the second side plate; the trolley belt runs between the servo electric roller and the unpowered roller in a closed-loop winding mode and runs above the belt supporting plate in the vertical direction.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of logistics sorting, and particularly relates to a cross-belt sorting trolley which is integrally designed in a light-weight module structure. BACKGROUND

[0002] In the existing logistics sorting operation site of e-commerce and express industry, a sorting trolley is usually used for automatic conveying, sorting and rechecking of goods. The walking trolley loaded with goods is circulated on the conveying line to realize rapid sorting and loading and unloading of goods.

[0003] For example, in the applicant's prior application for a domestic patent with the application number CN2019211804902 and the name of combined sorting trolley, a conveying assembly and a frame assembly are arranged on the upper part. 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 organ case is connected. The above-mentioned modular structure design of one trolley with double conveying can simultaneously convey and sort two small packages to both sides, or two conveying units can simultaneously convey one large package and synchronously sort and unload to the same side. The parallelly arranged conveying units are independently connected with the frame assembly and are independently controlled.

[0004] For another example, in the applicant's prior application for another domestic patent with the application number CN2020104732413 and the name of cross-belt sorting trolley, an upper conveying unit and a lower frame are included. The upper conveying unit includes a belt supporting plate and side plates connected to both sides of the belt supporting plate. Unpowered rollers and powered rollers are respectively arranged at both ends of the side plates. A sorting belt is wound between the belt supporting plate, the unpowered rollers and the powered rollers. On the lateral side of each side plate, a folding plate is horizontally arranged and a first or second bending connecting plate is vertically connected. The folding plate is an integral horizontal plate-shaped component, and the outer side edge has multiple uniform circular arc segments. The circular arc segments of the folding plates on both sides of the same sorting trolley are engaged with each other. Multiple folding plate fixing plates are arranged on the side of the side plate. The folding plate fixing plate has a bending part. The side of the folding plate fixing plate is fixedly connected with the side plate, and the horizontal top is fixedly connected with the folding plate. The first and second bending connecting plates are respectively connected to the side plate. The bottom of the first and second bending connecting plates is respectively provided with a first and second mounting hole for connecting the lower frame.

[0005] As described above, for the current horizontal ring cross-belt or vertical ring cross-belt sorting system, there are still obvious limitations: 1) the overall structure is complex and heavy, which is not conducive to improving the operation efficiency of the cross-belt sorting system; 2) the number of components is still large, and the manufacturing cost is still high; 3) the overall installation and debugging precision of the trolley needs to be improved due to the limitation of machining precision; 4) the overall running stability of the trolley needs to be improved due to the complicated connection structure of the components.

[0006] In view of this, the present patent application is proposed. Invention content

[0007] The lightweight cross-belt sorting trolley described in the present application is designed to solve the problems of the prior art, and the upper and lower conveying units are respectively designed to be lightweight and reduced in weight, and a quick assembly method between the upper and lower conveying units is proposed, so as to adopt a more compact and simplified connection means in the interconnection structure, thereby realizing lightweight and modular design, improving the upper limit of load and use efficiency, and reducing the operation amount of installation, debugging and maintenance.

[0008] To achieve the above design purpose, the lightweight cross-belt sorting trolley described in the present application comprises a lightweight cross-belt sorting trolley, characterized by comprising an upper conveying assembly and a lower running assembly fixedly connected along the vertical direction, wherein the upper conveying assembly comprises a pair of first and second side plates arranged opposite to each other, a profile connecting plate, a first pull rod, a second pull rod, a belt supporting plate, a servo motorized roller and a non-powered roller are fixedly connected between the inner sides of the first and second side plates, respectively; the trolley belt is wound in a closed loop and runs between the servo motorized roller and the non-powered roller vertically above the belt supporting plate; the lower running assembly comprises a trolley frame arranged in the transverse direction, a plurality of running wheel assemblies and guide wheel assemblies are fixedly connected to the transverse ends of the trolley frame, one end of an intermediate profile is connected longitudinally to the center of the trolley frame, the other end of the intermediate profile is fixedly connected to a trolley connecting seat, a knuckle bearing assembly for connecting adjacent trolleys is fixed to the front end of the trolley connecting seat, and a secondary plate is connected to the bottom of the intermediate profile.

[0009] Further, the first and second side plates have the same overall structure, the first side plate is composed of a bent plate and a U-shaped bent piece welded and fixed to the bent plate on the side; the bent plate is composed of a vertical plate and a horizontal plate into an L-shaped overall structure, a wiring hole is arranged on the vertical plate, and a protective sleeve is sleeved on the wiring hole; two groups of vertical distribution through grooves are symmetrically arranged at the bottom end of the vertical plate; a slot hole is arranged on the U-shaped bent piece for movably connecting the non-powered roller through the roller adjusting mechanism.

[0010] Further, the two ends of the non-powered roller are movably connected to the first and second side plates through a group of roller adjusting mechanisms respectively, so as to adjust the distance between the servo motorized rollers.

[0011] Further, a square waist through slot is arranged on the vertical plate, the roller adjusting mechanism comprises a first pad plate, a second pad plate, an adjusting nut, a slip knot bolt, a locking screw and a fastening nut; a square slot is arranged on the first pad plate and is parallel to the square waist through slot, the center shaft side end of the unpowered roller penetrates the square waist through slot on the vertical plate and the square slot on the first pad plate from inside to outside; the rod part of the slip knot bolt is sleeved with the adjusting nut, the rod part penetrates the slot hole on the U-shaped bending piece and is fastened to the U-shaped bending piece side through the adjusting nut; on the other side of the U-shaped bending piece, the fastening nut is sleeved on the slip knot bolt and is adjusted and screwed; the knot head of the slip knot bolt is laterally arranged on the second pad plate, the locking screw penetrates the through hole on the knot head of the slip knot bolt and the mounting hole on the second pad plate from outside to inside and is screwed to the center shaft end of the unpowered roller.

[0012] Further, the profile connecting plate has a U-shaped cross-section structure as a whole, a T-shaped reinforcing rib is arranged at the center of the U-shaped profile connecting plate and is integrally formed, two groups of mounting ribs with concave arc-shaped grooves are arranged in parallel on both sides of the T-shaped reinforcing rib; the driver is fixedly installed on the profile connecting plate by inserting a plurality of bolts into the concave arc-shaped grooves of the mounting ribs on both sides.

[0013] Further, two groups of first organ cover connecting plates, second organ cover connecting plates and organ cover supporting plates for installing the organ cover are fixedly connected to the outer sides of the first side plate and the second side plate.

[0014] Further, the trolley frame has an integral structure, the inside of the trolley frame comprises a plurality of groove parts formed by a plurality of reinforcing ribs, a guide mounting hole for installing a guide wheel assembly is arranged at the bottom of at least two groove parts; a pair of first wings with a group of second connecting holes for fixedly connecting with the upper conveying assembly are formed on the top edge of the trolley frame; a group of second wings with pin shaft mounting holes for installing the pin shaft of the knuckle bearing assembly and a group of third wings for installing the intermediate profile are formed on both sides of the trolley frame; a group of fourth wings with walking mounting holes for installing the walking wheel assembly are formed at both ends of the trolley frame, the fourth wings form a turning groove at both ends of the trolley frame to provide a turning space for the walking wheel assembly.

[0015] Further, the guide wheel assembly comprises a guide wheel and a guide wheel shaft, the guide wheel shaft has a prism and a cylindrical shaft surface connected as an integral structure, the outer end of the prism and the shaft surface is respectively connected with a group of shaft end threaded parts; the prism penetrates and is connected in 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 parts on one side of the prism, and are locked from outside to inside at the step formed at the outer end of the prism; the shaft surface penetrates the guide installation hole in the slot part from the bottom of the trolley frame, the second flat washer, the second spring washer and the second shaft end nut are sleeved on the shaft end threaded parts on one side of the shaft surface from bottom to top, and are locked at the step formed at the outer end of the shaft surface.

[0016] Further, the walking wheel assembly comprises a walking wheel and a rotating seat, the rotating seat is a U-shaped structure with an open part in the front, the open part has a pair of horizontally distributed wheel shaft through holes, and the rear part has a vertically distributed rotating shaft through hole; the walking wheel is arranged in the front open part of the rotating seat, the third spacer sleeve is arranged in the inner ring bearing of the walking wheel from one side, and the fourth spacer sleeve is attached to the end face of the inner ring bearing of the walking wheel from the other side; the walking wheel shaft is inserted into the rotating shaft through hole of the rotating seat from one side, and then penetrates the third spacer sleeve, the fourth spacer sleeve and the rotating shaft through hole on the other side in sequence, and the threaded shaft end on the walking wheel shaft is sleeved with the nut washer assembly to be locked and fixed to the side end of the fourth spacer sleeve; the first spacer sleeve is arranged in the rotating shaft through hole of the rotating seat, and the rotating seat and the mounted walking wheel are arranged in the steering slot of the trolley frame; the rotating shaft penetrates the walking installation hole on one side of the trolley frame, the rotating shaft through hole, the first spacer sleeve and the walking installation hole on the other side in sequence along the vertical direction, and the second spacer sleeve is sleeved on the penetrating part of the rotating shaft and is fastened along the axial direction by the fixing screw at the shaft end; after fastening, the head part of the rotating shaft abuts against the outer end face on one side of the fourth fin part of the trolley frame, and the end flange of the second spacer sleeve abuts against the outer end face on the other side of the fourth fin part of the trolley frame.

[0017] Further, the joint bearing assembly comprises a rod end joint bearing, the shaft end of the rod end joint bearing is inserted into the bearing installation hole in the front end of the trolley connecting seat, and two groups of nuts and lock washers are sleeved on the shaft end of the rod end joint bearing, which are respectively installed and fastened from the inner and outer sides of the front end of the trolley connecting seat; the end head of the rod end joint bearing and the two groups of bearing spacers respectively located on the two sides thereof are arranged in the second fin part of the trolley frame, the shaft end of the bearing pin shaft penetrates the pin shaft installation hole on one side of the second fin part, one group of bearing spacers, the end head of the rod end joint bearing, the other group of bearing spacers and the pin shaft installation hole on the other side of the second fin part in sequence, and is fastened and connected by the bearing fastener at the penetrating shaft end of the bearing pin shaft.

[0018] In summary, the lightweight cross-belt sorting trolley has the following advantages and beneficial effects:

[0019] 1. The vehicle has achieved a completely modular structure improvement, with a compact connection between the upper and lower parts, which helps to reduce the weight of the sorting cart; this improves the efficiency of vehicle assembly and on-site operations, and also helps to reduce manufacturing and usage costs.

[0020] 2. This application significantly optimizes the structural connection method of the upper conveyor unit, using the two side plates as the installation and correction center components, which can be used for sorting goods with large volume and weight while achieving lightweight design.

[0021] 3. This application features a high degree of modularity and optimized connection structure, which effectively improves the scalability of the overall vehicle design and provides a good interface and foundation for further improvements.

[0022] 4. This application can reduce the workload of vehicle installation, debugging and maintenance.

[0023] 5. This application effectively reduces the number of installation and connection parts, and further reduces the manufacturing and assembly precision. Attached Figure Description

[0024] The present application will now be further illustrated with reference to the following figures.

[0025] Figure 1 This is an exploded view of the lightweight cross-belt sorting cart described in this application;

[0026] Figure 2 This is a structural diagram of the lower frame component;

[0027] Figure 3 Is it like this? Figure 2 An axially exploded schematic diagram of the structure shown.

[0028] Figure 4 and Figure 5 These are structural schematic diagrams of the first side plate and the second side plate, respectively.

[0029] Figure 6 This is a schematic diagram of the installation at the end of the unpowered roller;

[0030] Figure 7 Is it like this? Figure 6 An axially exploded schematic diagram of the structure shown.

[0031] Figure 8 This is a schematic diagram of the transverse cross-section of the driver mounting profile;

[0032] Figures 9 to 11 These are schematic diagrams of the upper conveying unit from different perspectives;

[0033] Figure 12 This is a schematic diagram of the axial installation of the upper conveying unit;

[0034] Fig. 13 is a structural schematic diagram of the trolley frame;

[0035] Figure 14-1 Fig. 14 is a structural schematic diagram of the guide wheel assembly;

[0036] Figure 14-2 Fig. 15 is an exploded schematic diagram of the structure as shown in Fig. 14; Figure 14-1

[0037] Figure 15-1 Fig. 16 is a structural schematic diagram of the walking wheel assembly;

[0038] Figure 15-2 Fig. 17 is a structural schematic diagram of the rotating seat in Fig. 16; Figure 15-1

[0039] Fig. 18 is an exploded schematic diagram of the structure as shown in Fig. 17; Figure 15-3 Figure 15-1

[0040] Figure 16-1 Fig. 19 is a schematic diagram of the installation of the joint bearing;

[0041] Figure 16-2 Fig. 20 is a structural schematic diagram of the trolley connecting seat in Fig. 18; Figure 16-1 DETAILED DESCRIPTION

[0042] Embodiment 1, as shown in the figure, the present application proposes a new lightweight cross-belt sorting trolley, which comprises an upper conveying assembly 100 and a lower walking assembly 200 fixedly connected along the vertical direction. Figures 1 to 16-2 As shown in the figure, the upper conveying assembly 100 comprises a pair of first side plates 1 and second side plates 2 arranged 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 motorized roller 15 and a non-powered roller 16 are fixedly connected between the inner sides of the first side plate 1 and the second side plate 2, respectively.

[0043] Figures 9 to 12 The trolley belt 13 is wound in a closed loop above the vertical direction of the servo motorized roller 15 and the non-powered roller 16, and the drive 5 for transmitting signals and controlling the servo motorized roller 15 is installed at the bottom of the profile connecting plate 4, and the two ends of the non-powered roller 16 are respectively connected to the first side plate 1 and the second side plate 2 through a set of roller adjusting mechanism 3 to adjust the distance between the servo motorized roller 15.

[0044] Two sets of first concertina cover connecting plates 11 and second concertina cover connecting plates 12 for installing the concertina cover 10, and a concertina cover supporting plate 7 are fixedly connected to the outer sides of the first side plate 1 and the second side plate 2, respectively.

[0045] Two sets of first concertina cover connecting plates 11 and second concertina cover connecting plates 12 for installing the concertina cover 10, and a concertina cover supporting plate 7 are fixedly connected to the outer sides of the first side plate 1 and the second side plate 2, respectively.

[0046] ​​​​​The first pull rod 8 and the second pull rod 9 are both profiled materials with a triangular cross-sectional shape, the two side ends of the profiled connecting plate 4, the first pull rod 8 and the second pull rod 9 are fixedly connected with the first side plate 1 and the second side plate 2 respectively to form a frame overall structure of the upper conveying assembly 100;

[0047] As shown in Figure 4 and Figure 5 The first side plate 1 and the second side plate 2 have the same overall structure, taking the structure 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 fixedly welded on the bent plate 01;

[0048] The bent plate 01 is formed by cold plate die bending processing of a sheet-shaped profiled material, and has an L-shaped overall structure composed of a vertical plate 05 and a horizontal plate 04, a plurality of reinforcing protruding ribs 06 in an inner concave circular arc strip structure are arranged on the vertical plate 05 by stamping forming, the reinforcing protruding ribs 06 are used to strengthen the rigidity and strength of the bent plate 01 as a whole, so that deformation is not easy to occur when the first side plate 1 is connected with the profiled connecting plate 4, the first pull rod 8 and the second pull rod 9 respectively in the subsequent process, and structural guarantee is provided for the overall stability of the upper conveying assembly 100.

[0049] A plurality of horizontal stamping screw holes 07 are arranged on the horizontal plate 04, and a plurality of bent portions in vertical distribution are connected on both sides of the vertical plate 05, and a vertical stamping screw hole 08 is arranged on each bent portion; the horizontal stamping screw hole 07 and the vertical stamping screw hole 08 are used to improve the fastening connection stability and reduce the installation difficulty. If the welding nut mode is adopted here, the first side plate 1 is more likely to be deformed by welding when other components are welded with the first side plate 1, and the horizontal stamping screw hole 07 and the vertical stamping screw hole 08 can avoid such situation.

[0050] A wiring hole 09 is arranged on the vertical plate 05, and a protective sleeve 6 is sleeved on the wiring hole 09, and the power supply line and the signal line of the servo motorized roller 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 motorized roller 15 is not easy to be scratched.

[0051] Two groups of vertical distribution through grooves 021 are symmetrically arranged at the bottom end of the vertical plate 05, so as to realize the fixed connection of the upper conveying assembly 100 and the lower walking assembly 200 through fasteners, which can realize and simplify the vertical side installation between the upper conveying assembly 100 and the lower walking assembly 200, and is convenient for disassembly and maintenance;

[0052] The U-shaped bent piece 02 is provided with a slot hole 03, which is used to movably connect the non-powered roller 16 through the roller adjusting mechanism 3;

[0053] As shown in Figure 6 andFigure 7 As shown, a square waist groove 022 is provided on the vertical plate 05. The roller adjustment mechanism 3 includes a first pad 010, a second pad 011, an adjusting nut 012, a slip bolt 013, a locking screw 014, and a fastening nut 015.

[0054] A square groove 010-1 with the same shape and size as the square waist through groove 022 and distributed parallel to each other is provided on the first pad plate 010. The central shaft side end of the non-powered roller 16 passes through the square waist through groove 022 on the vertical plate 05 and the square groove 010-1 on the first pad plate 010 from the inside to the outside. After passing through, the central shaft is restricted from rotating in the circumferential direction.

[0055] An adjusting nut 012 is fitted onto the shank of the swivel bolt 013. The shank passes through the slot 03 on the U-shaped bending piece 02 and is then fastened to one side of the U-shaped bending piece 02 by the adjusting nut 012. On the other side of the U-shaped bending piece 02, a fastening nut 015 is fitted onto the swivel bolt 013 and tightened. The knot of the swivel bolt 013 is placed sideways on the second pad 011. The locking screw 014 passes through the through hole on the knot of the swivel bolt 013 and the mounting hole 011-1 on the second pad 011 from the outside to the inside, and is screwed onto the end of the central shaft of the unpowered roller 16, thereby completing the shaft end fixing of the unpowered roller 16.

[0056] 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. The distance between the unpowered roller 16 and the servo electric roller 15 can be adjusted by the roller adjustment mechanism 3. Specifically, firstly, the adjusting nuts 012 and fastening nuts 015 on both sides of the U-shaped bending piece 02 are loosened, and the swivel bolt 013 is released. Then, the swivel bolt 013 moves along its axial direction in the slot 03 on the U-shaped bending piece 02. As a result, the head of the swivel bolt 013 drives the shaft end of the central shaft of the unpowered roller 16 to move back and forth in the square waist through slot 022 on the vertical plate 05 and the square slot 010-1 on the first pad plate 010, adjusting the center distance between the unpowered roller 16 and the servo electric roller 15, and finally realizing the tension adjustment of the trolley belt 13.

[0057] like Figure 8 As shown, the profile connecting plate 4 has an overall U-shaped cross-sectional structure, with an integrally formed, continuous T-shaped reinforcing rib 041 at the center of its U-shape, and two sets of integrally formed, continuous mounting ribs 042 with concave arc grooves arranged parallel on both sides of the T-shaped reinforcing rib 041.

[0058] The driver 5 is fixedly installed on the profile connecting plate 4 by inserting array bolts into the concave arc grooves of the mounting ribs 042 on both sides.

[0059] likeFigure 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:

[0060] 1) Assembly of the trolley belt;

[0061] First, the belt support plate 14 is fixedly connected to the inner side of the first side plate 1 by fasteners;

[0062] Second, the center shaft end of the servo motorized roller 15 is inserted through the roller fixing groove 023 on the first side plate 1, and the center shaft end of the unpowered roller 16 is inserted through the square waist through groove 022 on the first side plate 1;

[0063] Then, the trolley belt 13 is wound in a closed loop vertically above the belt support plate 14 between the servo motorized roller 15 and the unpowered roller 16;

[0064] The other side of the center shaft end of the servo motorized roller 15 is inserted through the roller fixing groove 023 on the second side plate 2, and the other side of the center shaft end of the unpowered roller 16 is inserted through the square waist through groove 022 on the second side plate 2;

[0065] Finally, the inner side of the second side plate 2 is fixedly connected to the belt support plate 14 by fasteners;

[0066] 2) Assemble the upper frame;

[0067] Respectively, the profile connecting plate 4, the first pull rod 8 and the second pull rod 9 are fixedly connected between the first side plate 1 and the second side plate 2 by fasteners;

[0068] 3) Shaft end installation of the unpowered roller 16;

[0069] First, the center shaft end of the unpowered roller 16 is inserted through the square groove 010-1 on the first gasket plate 010 and the mounting hole 011-1 on the second gasket plate 011 from inside to outside in sequence;

[0070] Second, the adjusting nut 012 is sleeved on the rod part of the live knot bolt 013, the rod part is inserted through the slot hole 03 on the U-shaped bending piece 02, and then the adjusting nut 012 is fastened to one side of the U-shaped bending piece 02; On the other side of the U-shaped bending piece 02, the fastening nut 015 is sleeved on the live knot bolt 013 and adjusted and tightened, so that the rod part of the live knot bolt 013 is fastened to the U-shaped bending piece 02 in the axial direction;

[0071] Then, the knot head of the live knot bolt 013 is placed on the second pad plate 011, and the lock screw 014 is sequentially threaded through the through hole on the knot head of the live knot bolt 013, the mounting hole 011-1 on the second pad plate 011, and then screwed on the center shaft end of the unpowered roller 16, so as to fasten the center shaft end of the unpowered roller 16 to the knot head of the live knot bolt 013;

[0072] 4) Installation and connection of the driver 5;

[0073] The two sides of the driver 5 are mounted on the profile connecting plate 4 by inserting the array of bolts into the inner concave arc-shaped slots of the mounting ribs 042;

[0074] The wires of the servo motorized roller 15, including power supply wires and signal control wires, are passed through the wire holes 09 of the upper frame to connect the driver 5, so as to adjust and control the rotation direction and speed of the servo motorized roller 15 by the driver 5.

[0075] Further, when the tension of the trolley belt 13 needs to be adjusted, first, the adjusting nuts 012 and the fastening nuts 015 on both sides of the U-shaped bending piece 02 are loosened, and the live knot bolt 013 is released; then, the live knot bolt 013 is moved in the axial direction in the slot hole 03 of the U-shaped bending piece 02, so that the shaft end of the center shaft of the unpowered roller 16 is driven by the knot head of the live knot bolt 013 to move in the square waist slot 022 on the vertical plate 05 and the square slot 010-1 on the first pad plate 010, so as to adjust the center distance between the unpowered roller 16 and the servo motorized roller 15, and finally realize the tension adjustment of the trolley belt 13.

[0076] As shown in Figure 2 and Figure 3 The lower walking assembly 200 includes a transversely arranged trolley frame 20, a plurality of walking wheel assemblies 24 and a guide wheel assembly 23 are fixedly connected at the transverse ends of the trolley frame 20, an intermediate profile 21 is longitudinally connected at one end of the trolley frame 20, the other end of the intermediate profile 21 is fixedly connected to a trolley connecting seat 26, a joint bearing assembly 25 for connecting adjacent trolleys is fixedly connected at the front end of the trolley connecting seat 26, and a secondary plate 22 is connected at the bottom of the intermediate profile 21;

[0077] The trolley frame 20 has an integrated structure, and its interior includes a plurality of grooves 201 formed by a plurality of reinforcing ribs, and a guide mounting hole 203 is arranged at the bottom of at least two grooves 201 for mounting the guide wheel assembly 23; a pair of parallel distributed first wing portions with 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 wing portions with pin shaft mounting holes 206 for mounting the pin shaft of the joint bearing assembly 25 and a group of third wing portions for mounting the intermediate profile 21 are formed on both sides of the trolley frame 20; a group of fourth wing portions with walking mounting holes 204 for mounting the walking wheel assembly 24 are formed at both ends of the trolley frame 20, and the fourth wing portions form a turning groove 205 at both ends of the trolley frame 20 to provide a turning space for the walking wheel assembly 243.

[0078] As shown in Figure 14-1 and Figure 14-2 The guide wheel assembly 23 includes a guide wheel 2301 and a guide wheel shaft 2302, the guide wheel shaft 2302 has a prismatic body 2300 and a cylindrical shaft surface body 2309 connected as an integrated structure, and a group of shaft end threaded portions are connected to the outer side ends of the prismatic body 2300 and the shaft surface body 2309, respectively; the prismatic body 2300 penetrates through and is connected to the bearing in the inner cavity of the guide wheel 2301, a first flat washer 2306, a first spring washer 2307, and a first shaft end nut 2308 are respectively sleeved on the shaft end threaded portions on one side of the prismatic body 2300 and are locked from the outside to the step formed at the outer side end of the prismatic body 2300; the shaft surface body 2309 penetrates into the guide mounting hole 203 of the groove 201 from the bottom of the trolley frame 20, a second flat washer 2303, a second spring washer 2302, and a second shaft end nut 2301 are sleeved on the shaft end threaded portions on one side of the shaft surface body 2309 from the bottom to the top and are locked to the step formed at the outer side end of the shaft surface body 2309;

[0079] As shown in Figures 15-1 to 15-3 The walking wheel assembly 24 includes a walking wheel 2409 and a rotating seat 2402, the rotating seat 2402 is a U-shaped structure with an open portion at the front, the open portion has a pair of horizontally distributed wheel shaft perforations 2411, and the rear portion has a vertically distributed rotating shaft perforation 2412;

[0080] The walking wheel 2409 is placed in the front open portion of the rotating seat 2402, the third spacer sleeve 2407 is placed in the inner ring bearing of the walking wheel 2409 from one side, and the fourth spacer sleeve 2408 is attached to the end face of the inner ring bearing of the walking wheel 2409 from the other side;

[0081] The walking wheel shaft 2406 is inserted into the rotating shaft hole 2412 of the rotating seat 2402 from one side, and then sequentially passes through the third spacer sleeve 2407, the fourth spacer sleeve 2408, and the rotating shaft hole 2412 on the other side. The nut washer assembly 2410 is arranged on the threaded shaft end of the walking wheel shaft 2406 on the side where the walking wheel shaft 2406 exits, so as to be locked and fixed to the side end of the fourth spacer sleeve 2408, thereby completing the installation of the walking wheel 2409 to the front opening of the rotating seat 2402.

[0082] The first spacer sleeve 2403 is arranged in the rotating shaft hole 2412 of the rotating seat 2402, and the rotating seat 2402 and the installed walking wheel 2409 are arranged in the steering groove 205 of the trolley frame 20 together; the rotating shaft 2401 passes through the walking installation hole 204 on one side of the trolley frame 20, the rotating shaft hole 2412, the first spacer sleeve 2403, and the walking installation hole 204 on the other side in sequence along the vertical direction, and the second spacer sleeve 2404 is arranged on the exiting part of the rotating shaft 2401 and is fastened along the axial direction by the fixing screw 2405 at the shaft end; after fastening, the head of the rotating shaft 2401 (opposite to the shaft end with internal threads) abuts against the outer end surface on one side of the fourth wing part of the trolley frame 20, and the end flange of the second spacer sleeve 2404 abuts against the outer end surface on the other side of the fourth wing part of the trolley frame 20, thereby completing the installation of the walking wheel assembly 24 on the trolley frame 20;

[0083] As shown in Figure 16-1 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 installation hole 2601 at the front end of the trolley connecting seat 26, and two groups of nuts and lock washers 2505 are arranged on the shaft end of the rod end joint bearing 2501 and are fastened from the inner and outer sides of the front end of the trolley connecting seat 26.

[0084] The end of the rod end joint bearing 2501 and the two groups of bearing spacers 2503 located on the two sides thereof are arranged in the second wing part of the trolley frame 20 together, the shaft end of the bearing pin shaft 2502 passes through the pin shaft installation hole 206 on one side of the second wing part, one group of bearing spacers 2503, the end of the rod end joint bearing 2501, the other group of bearing spacers 2503, and the pin shaft installation hole 206 on the other side of the second wing part in sequence, and the bearing fastener 2504 is used to fasten and connect the exiting shaft end of the bearing pin shaft 2502.

[0085] As shown in Figure 16-2 The trolley connecting seat 26 has a base, a bearing installation hole 2601 is arranged at the front end of the base, a plurality of side installation holes 2602 are arranged on the two sides of the base and are fixedly connected with the intermediate profile 21, two groups of ear seats 2603 with a bending structure are symmetrically arranged on the top of the base and are integrally formed with the base, and a group of first connecting holes 201 for connecting the upper conveying assembly are arranged on each group of ear seats 2603.

[0086] Based on the structural design of the lower walking assembly 200, a modular assembly process including the following steps can be implemented:

[0087] 1) Installation of the guide wheel assembly;

[0088] First, the guide wheel shaft 2302 is inserted through the guide wheel 2301, the prism 2300 is inserted into 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 part on one side of the prism 2300 and locked from the outside to the step formed on the outer side end of the prism 2300;

[0089] Then, the shaft surface body 2309 of the guide wheel shaft 2302 is inserted into the guide installation hole 203 of the slot part 201 from the bottom of the trolley frame 20, the second flat washer 2303, the second spring washer 2302, and the second shaft end nut 2301 are sleeved on the shaft end threaded part on one side of the shaft surface body 2309 from the bottom to the top and locked to the step formed on the outer side end of the shaft surface body 2309;

[0090] 2) Installation of the walking wheel assembly;

[0091] First, the walking wheel 2409 is placed in the front opening part of the rotating seat 2402, the third spacer sleeve 2407 is placed in the inner ring bearing of the walking wheel 2409 from one side, and the fourth spacer sleeve 2408 is attached to the end face of the inner ring bearing of the walking wheel 2409 from the other side;

[0092] Second, after the walking wheel shaft 2406 is inserted into the rotating shaft perforation 2412 of the rotating seat 2402 from one side, it is sequentially inserted through the third spacer sleeve 2407, the fourth spacer sleeve 2408, and the rotating shaft perforation 2412 on the other side, and the threaded shaft end of the walking wheel shaft 2406 is sleeved with the nut washer assembly 2410 to be locked and fixed to the side end of the fourth spacer sleeve 2408, thereby completing the installation of the walking wheel 2409 in the front opening part of the rotating seat 2402;

[0093] Then, the first spacer sleeve 2403 is placed in the rotating shaft 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; the rotating shaft 2401 passes through the walking installation hole 204 on one side of the trolley frame 20, the rotating shaft hole 2412, the first spacer sleeve 2403 and the walking installation hole 204 on the other side in sequence along the vertical direction, the second spacer sleeve 2404 is sleeved on the passing-out part of the rotating shaft 2401, and the shaft end is fastened by the fixing screw 2405 along the axial direction; after fastening, the head of the rotating shaft 2401 (opposite to the shaft end with internal threads) abuts against the outer end surface of one side of the fourth wing part of the trolley frame 20, and the end flange of the second spacer sleeve 2404 abuts against the outer end surface of the other side of the fourth wing part of the trolley frame 20.

[0094] 3) Installation of joint bearing;

[0095] The shaft end of the rod end joint bearing 2501 is inserted into the bearing installation hole 2601 at the front end of the trolley connecting seat 26, and two groups of nuts and lock washers 2505 are sleeved on the shaft end of the rod end joint bearing 2501, which 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 the two groups of bearing spacers 2503 located on both sides thereof are placed in the second wing part of the trolley frame 20, the shaft end of the bearing pin shaft 2502 passes through the pin shaft installation hole 206 on one side of the second wing part, one group of bearing spacers 2503, the end of the rod end joint bearing 2501, the other group of bearing spacers 2503 and the pin shaft installation hole 206 on the other side of the second wing part in sequence, and the passing-out shaft end of the bearing pin shaft 2502 is fastened and connected by the bearing fastener 2504.

[0097] 4) Installation of secondary plate;

[0098] One end of the intermediate profile 21 is connected longitudinally in the center of the trolley frame 20, the other end of the intermediate profile 21 is fixedly connected with the trolley connecting seat 26, and the secondary plate 22 is connected at the bottom of the intermediate profile 21.

[0099] Thus, the modular assembly of the lower walking assembly 200 is completed.

[0100] As described above, the lightweight cross-belt sorting trolley proposed in the present application adopts a modular structure design, including the modular design of the upper conveying assembly 100, the modular design of the lower walking assembly 200, and the modular design of the assembly connection therebetween.

[0101] As Figure 1As shown, after the upper conveying assembly 100 and the lower walking assembly 200 are assembled, the first side plate 1, the second side plate 2, the first wing part on the trolley frame 20, and the lug seat 2603 on the trolley connecting seat 26 are respectively installed through a plurality of fasteners, that is, the fasteners are respectively correspondingly locked through the through slot 021 and the first connecting hole 201 and the second connecting hole 202, and the vertical side installation mode between the upper conveying assembly 100 and the lower walking assembly 200 can more quickly and conveniently install, debug, and maintain and disassemble the two.

[0102] In summary, the embodiments given in the drawings are only preferred schemes. Those skilled in the art can be inspired by this to directly deduce other alternative structures conforming to the design concept of the utility model, which also belongs to the scheme range of the utility model.

Claims

1. A lightweight cross-belt sorting trolley, characterized in that: The system includes an upper conveying assembly and a lower traveling assembly that are fixedly connected vertically. The upper conveying assembly includes a pair of first and second side plates arranged opposite each other. A profile connecting plate, a first tie rod, a second tie rod, a belt support plate, a servo-electric roller, and a non-powered roller are fixedly connected between the inner sides of the first and second side plates, respectively. The trolley belt runs in a closed loop between the servo-electric roller and the non-powered roller, vertically above the belt support plate. The lower traveling assembly includes a horizontally arranged trolley frame, with a series of traveling wheel assemblies and guide wheel assemblies fixedly connected to both ends of the trolley frame. One end of an intermediate profile is longitudinally connected to the center of the trolley frame, and a trolley connecting seat is fixedly connected to the other end of the intermediate profile. A joint bearing assembly for connecting adjacent trolleys is fixed to the front end of the trolley connecting seat, and a secondary plate is connected to the bottom of the intermediate profile.

2. The lightweight cross-belt sorting trolley according to claim 1, characterized in that: The first side plate and the second side plate have the same overall structure. The first side plate is composed of a bent plate and a U-shaped bent piece welded and fixed to the bent plate on the side. The bending plate is composed of a vertical plate and a horizontal plate to form an L-shaped integral structure. A wiring hole is provided on the vertical plate, and a ring-shaped protective sleeve is fitted on the wiring hole. Two sets of vertically distributed through slots are symmetrically provided at the bottom end of the vertical plate. The U-shaped bending member is provided with slots for movably connecting a non-powered roller via a roller adjustment mechanism.

3. The lightweight cross-belt sorting trolley according to claim 2, characterized in that: The two ends of the unpowered roller are movably connected to the first side plate and the second side plate through a set of roller adjustment mechanisms, so that the spacing of its servo electric roller can be adjusted.

4. The lightweight cross-belt sorting trolley according to claim 3, characterized in that: A square waist-shaped groove is provided on the vertical plate. The roller adjustment mechanism includes a first pad, a second pad, an adjusting nut, a swivel bolt, a locking screw, and a fastening nut. A square groove is provided on the first pad plate, which is parallel to the square waist through groove. The central shaft side end of the non-powered roller passes through the square waist through groove on the vertical plate and the square groove on the first pad plate from the inside to the outside. An adjusting nut is fitted onto the shank of the swivel bolt. After the shank passes through the slot on the U-shaped bending piece, it is fastened to one side of the U-shaped bending piece by the adjusting nut. On the other side of the U-shaped bending piece, a fastening nut is fitted onto the swivel bolt and tightened. The knot of the swivel bolt is placed sideways on the second pad. The locking screw passes through the through hole on the knot of the swivel bolt and the mounting hole on the second pad from the outside to the inside, and is screwed to the end of the central shaft of the non-powered roller.

5. The lightweight cross-belt sorting trolley according to claim 1, characterized in that: The profile connecting plate has an overall U-shaped cross-sectional structure, with an integrally formed, continuous T-shaped reinforcing rib at the center of the U-shape, and two sets of integrally formed, continuous mounting ribs with concave arc grooves arranged parallel to each other on both sides of the T-shaped reinforcing rib. The driver is fixedly installed on the profile connecting plate by inserting array bolts into the concave arc grooves of the mounting ribs on both sides.

6. The lightweight cross-belt sorting trolley according to claim 5, characterized in that: Two sets of first accordion cover connecting plates, second accordion cover connecting plates, and accordion cover support plates are fixedly connected to the outer sides of the first side plate and the second side plate, respectively.

7. The lightweight cross-belt sorting trolley according to claim 1, characterized in that: The trolley frame has an integrally molded structure, and its interior includes grooves formed by several reinforcing ribs spaced apart. At least two grooves have guide mounting holes at the bottom for mounting guide wheel assemblies. A pair of first wings, each with a set of second connecting holes, are formed on the top edge of the trolley frame for fixed connection with the upper conveying assembly. On both sides of the trolley frame, a second wing with pin mounting holes for mounting the pin of the spherical bearing assembly and a third wing for mounting the intermediate profile are formed respectively. A set of fourth wings with travel mounting holes for mounting travel wheel assemblies are formed at both ends of the trolley frame. The fourth wings form steering grooves at both ends of the trolley frame to provide rotation space for the travel wheel assemblies.

8. The lightweight cross-belt sorting trolley according to claim 7, characterized in that: The guide wheel assembly includes a guide wheel and a guide wheel axle. The guide wheel axle has a prism and a columnar axle body that are connected as an integral structure. The outer ends of the prism and the axle body are respectively connected to a set of axle end threads. 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 thread on one side of the prism and locked from the outside to the inside at the step formed on the outer end of the prism. The shaft surface body is inserted into the guide mounting hole of the groove from the bottom of the trolley frame. The second flat washer, the second spring washer, and the second shaft end nut are fitted from bottom to top onto the shaft end thread on one side of the shaft surface body and locked to the step formed at the outer end of the shaft surface body.

9. The lightweight cross-belt sorting trolley according to claim 7 or 8, characterized in that: The aforementioned walking wheel assembly includes a walking wheel and a rotating seat. The rotating seat is a U-shaped structure with an opening at the front, a pair of horizontally distributed wheel axle through holes at the opening, and a vertically distributed rotating shaft through hole at the rear. The traveling wheel is placed in the front opening of the rotating seat, the third spacer is placed in the inner ring bearing of the traveling wheel from one side, and the fourth spacer is attached to the end face of the inner ring bearing of the traveling wheel from the other side. After the walking wheel axle is inserted into the rotating shaft through hole of the rotating seat from one side, it passes through the third spacer, the fourth spacer and the rotating shaft through hole on the other side in sequence. A nut and washer combination is fitted on the threaded shaft end of the walking wheel axle on the side of the through hole to lock and fix it to the side end of the fourth spacer. The first spacer is placed in the rotating shaft through hole of the rotating seat, and the rotating seat and the installed traveling wheel are placed together in the steering groove of the trolley frame; the rotating shaft passes through the traveling mounting hole on one side of the trolley frame, the rotating shaft through hole, the first spacer and the traveling mounting hole on the other side in sequence along the vertical direction, and the second spacer is fitted on the through part of the rotating shaft and screwed and fastened axially at the shaft end by fixing screws; after fastening, 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.

10. The lightweight cross-belt sorting trolley according to claim 7, characterized in that: The spherical bearing assembly includes a rod end spherical bearing. The shaft end of the rod end spherical bearing is inserted into the bearing mounting hole at the front end of the trolley connecting seat. Two sets of nuts and anti-loosening washers are fitted 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 connecting seat, respectively. The end of the rod end spherical bearing and two sets of bearing spacers located on its two sides 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, one set of bearing spacers, the end of the rod end spherical bearing, the other set of bearing spacers, and the pin mounting hole on the other side of the second wing in sequence, and is fastened at the protruding shaft end of the bearing pin by bearing fasteners.

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