Stacker-reclaimer walking mechanism trolley frame and assembly line manufacturing process thereof
By designing the trolley frame structure of side plates, half-wheel sleeve assembly and half-shaft bend parts, combined with the assembly line manufacturing process and the use of tooling tables, the problem of low production efficiency of the trolley frame of the stacking machine is solved, and the Improved accuracy and reduced cost.
Patent Information
- Application Number
- CN202411138491.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-19
- Publication Date
- 2024-12-27
AI Technical Summary
The production efficiency of the trolley frame of the stacker walking mechanism is low, resulting in high accuracy requirements, large pyrotechnic correction volume, and long tire position occupancy, which affects assembly line operations.
A trolley frame structure including side plates, half-wheel sleeve assembly, half-shaft sleeve and half-shaft sleeve bending parts was designed. The assembly line manufacturing process was adopted, and the tooling table was used to simplify the part positioning and welding process, and reduce repetitive work. Improve welding quality and accuracy.
It effectively reduces the amount of pyrotechnic correction, reduces manufacturing costs, improves production efficiency and product quality, optimizes the manufacturing process, and reduces unnecessary tire position occupation time.
Smart Images
Figure CN119190879A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of traveling mechanism trolley frame manufacturing, in particular to a traveling mechanism trolley frame of a stacker-reclaimer and an assembly line manufacturing process thereof. Background Art
[0002] The general travel mechanism of stacker-reclaimer is composed of driving trolley and driven trolley. The driving trolley is equipped with a dual-speed motor. When the motor is started, it drives the driving wheel to rotate through the three-stage vertical reducer. The driving wheel drives the two traveling wheels to rotate simultaneously through the gears, so that the whole machine moves forward and backward on the track.
[0003] The two-wheeled carriage frame is a walking mechanism component that directly contacts the track. It bears the pressure of the entire equipment, so there are a large number of them. Generally, a stacker-reclaimer has about 32 two-wheeled carriage frames. Due to the large number, the manufacturing precision is high, which will lead to reduced production efficiency. The manufacturing precision of flatness, straightness, coaxiality, etc. is poor, which increases the amount of pyrotechnic correction, increases the tire position occupation time, and manufacturing precision, affecting the assembly line operation.
[0004] The manufacturing process of the main beam of a tire gantry crane disclosed in the relevant reference document CN115476064A mainly includes the production design of parts, plane segmentation production and three-dimensional segmentation production. However, when producing the plane segments, the side plate plane segments and the bottom plate plane segments need to be turned over, and when producing the three-dimensional segments, the three-dimensional segments of the main beam need to be turned over. After each turning over, the segments need to be positioned and leveled, which requires tedious and repetitive work, and the manufacturing process is relatively cumbersome. Summary of the invention
[0005] The technical problem to be solved by the present invention is to provide a stacker-reclaimer walking mechanism trolley frame and its assembly line manufacturing process which can reduce unnecessary pyrotechnic correction, optimize manufacturing process, reduce tire position occupying time and improve production efficiency.
[0006] In order to solve the above technical problems, the present invention provides a trolley frame of a stacker-reclaimer walking mechanism, comprising side panels, a half-wheel sleeve assembly, a half-axle sleeve and a half-axle sleeve bending part on both sides; a side panel thickening plate is arranged on one side of the side panel; the half-wheel sleeve assembly is mainly composed of a lower half of a half-wheel sleeve and an upper half of a half-wheel sleeve; half-axle sleeves are installed at both ends of the half-axle sleeve bending part to form a half-axle sleeve assembly; a top plate is installed on the side of the half-axle sleeve assembly, end plates are arranged at both ends of the top plate, and a side plate is arranged between the two end plates, and the sleeve opening of the side plate and the half-axle sleeve are installed tightly; a half-wheel sleeve is installed in the wheel sleeve opening of the side plate The upper half of the half-wheel sleeve is installed on the upper half of the half-wheel sleeve; a partition is arranged in the middle of the side plate, one side of the partition is fixed on the inner side of the half-axle sleeve assembly, and sealing plates are arranged on the two side surfaces of the other side of the partition; inclined partitions are arranged on the side plates on both sides of the partition, and one side of the inclined partition is fixed on the corner of the half-axle sleeve assembly; a bottom plate is arranged on the sealing plate, and a rib plate is arranged on the bottom plate; the trolley frame with such a structure has the characteristics of simple and reasonable structure, convenient welding and manufacturing, which is conducive to improving welding quality, reducing the amount of pyrotechnic correction, reasonable processing requirements and safe and reliable performance.
[0007] The assembly line manufacturing process of the stacker-reclaimer traveling mechanism trolley frame includes the following steps: 1. Production design of parts A. Production of half-shaft sleeves a. Two thick plates are combined together for cutting, and the plate thickness is increased by 10mm for machining allowance; b. Rough machining after cutting, machining center hole and boss, leaving 5mm machining allowance for thickness after machining, 5mm machining allowance for boss thickness and radius, 20mm for hole diameter, sawing from the middle after machining; B. Production of half wheel set a. Cut the lower half of the half wheel sleeve and the upper half of the half wheel sleeve. To improve efficiency, cut the 4 lower half of the half wheel sleeve together and the 4 upper half of the half wheel sleeve together. After cutting, saw the parts apart. Add 2.5mm margin at the end of the length direction of the lower half of the half wheel sleeve and the upper half of the half wheel sleeve. b. Scrape the mating surfaces of the lower half of the half wheel cover and the upper half of the half wheel cover flat first, merge the lower half of the half wheel cover and the upper half of the half wheel cover together, drill holes on the inner circle according to the requirements of the drawing, and do not process the plate thickness direction for assembly and welding of the trolley frame; c. The plate thickness direction and inner hole finishing work of the lower half of the half wheel sleeve and the upper half of the half wheel sleeve will be processed together after the overall structure of the trolley frame is completed; C. Production of other panels a. Punch holes on the top plate and end plate when they are in the part state; b. Since the bottom plate is narrow at the bend, it is widened by 50mm and trimmed after bending; 2. Graphic production A. The side panel and half wheel housing assembly form a sheet group a. Make a tooling table for positioning, position the side panels and half wheel assembly, and form an assembly line; b. Position welding in sequence; after the half wheel assembly is bolted together, it is position welded to the side plate as a whole. Before welding, check whether the splicing interface meets the size requirements, check whether the relative position of the side plate and the half wheel assembly is horizontal, the length of the positioning welding is not less than 50mm, and the positioning welding is carried out from the middle to both ends; B. Group of half-axle sleeve and middle half-axle sleeve bending parts a. After the half-axle sleeve parts are processed, they are welded with the half-axle sleeve bending parts to form a half-axle sleeve assembly. Each set of half-axle sleeve assemblies is marked with corresponding steel stamp numbers; b. Use tooling tables for assembly line production; c. Use the oil cylinder to press and adjust the post-welding deformation of the half-shaft sleeve assembly so that all dimensions are within the tolerance range; 3. 3D production A. Make the assembly line tooling table according to the drawing a. Place the half-axle sleeve assembly on the workbench, with one end close to the half-axle sleeve limit stop, and both ends of the half-axle sleeve assembly are locked by the shaft limit support; b. Assemble the top plate, place the top plate on the top plate support, and place one side close to the top plate limit stop of the end plate; c. Assemble the end plates on both sides, and place one end of the end plate in the slot of the limit stop on the top plate of the end plate; d. Assemble the sheet group on one side, there is no side plate thickening plate on this side; e. Assemble the middle vertical partitions and inclined partitions; f. Assemble the sheet group on the other side, add 5mm margin to the thickness of the side plate, flatten and weld the inner side surface with the side plate, and leave the margin on the outside for subsequent overall machining for adjustment and assembly with the torque arm; g. Assemble the sealing plate; h. Assemble the base plate; i. Assemble the ribs on the bottom plate; B. Check the dimensions after positioning welding If there is a discrepancy in size, the limit positioning size of the tooling needs to be rechecked and adjusted to ensure the size requirements after subsequent assembly line operations; C. Overall machining According to the machining drawings, process the end face of the half-shaft sleeve, the side steps, the aperture of the half-wheel sleeve and scrape the end faces on both sides to ensure that all processing requirements are in line with the drawings.
[0008] The present application adopts three-dimensional installation and utilizes the designed assembly line to produce the workbench. The prepared small components and corresponding parts are placed on the workbench in order. There is no need to perform tedious and repetitive work such as individual marking and positioning, adjusting the level, etc. The process assembly sequence is optimized, the overall production accuracy of the trolley frame is ensured, and the problems of flatness, straightness, verticality, and coaxiality that may occur in the subsequent processes are reduced. Due to the large number of trolley frames, unnecessary pyrotechnic correction is reduced, the manufacturing cost is reduced, the fetal position occupancy time is reduced, and an assembly line operation is formed, which greatly improves the production efficiency and product quality.
[0009] Preferably, the tooling table is a frame formed by welding angle steel, and a half-axle sleeve limit stop is arranged in the middle of a long side of the top of the tooling table, and a top plate support is arranged at each end of the long side; shaft limit support members are arranged on both sides of the half-axle sleeve limit stop; an upper limit stop of the side plate is arranged on the top of the half-axle sleeve limit stop; a wedge is arranged in the middle of the other long side of the top of the tooling table through a clamping block, and a top plate support is also arranged at each end of this long side; the end of the half-axle sleeve limit stop is a fixed clamping position, which is equivalent to a reference line, and the wedge can be adjusted up and down to assist in ensuring that the half-axle sleeve assembly can be close to the half-axle sleeve limit stop, and shaft limit support members are also arranged on both sides of the wedge; an end plate limit stop is arranged on a short side of the top of the tooling table, and an end plate limit adjusting member is arranged on the other short side; the end plate limit stop end is a fixed clamping position, which is equivalent to a reference line, and the end plate limit adjusting member can be adjusted left and right to assist in ensuring that the end plate can be close to the end plate limit stop; an end plate top plate limit stop is arranged at the lower part of the half-axle sleeve limit stop. The use of this workbench can reduce the repetitive labor hours of reading drawings, positioning, and marking. Relying on the workbench, the corresponding parts can be quickly and accurately positioned to the correct position, forming an assembly line operation, ensuring production accuracy, and improving manufacturing efficiency.
[0010] Preferably, in the production design of the parts, in step a of step B, a 5mm margin is added to the overall outer ring when the lower half of the half wheel sleeve is cut, so as to compensate for the thermal deformation caused by flame cutting and avoid insufficient strength due to thinning of the wall thickness of the lower half of the half wheel sleeve after processing.
[0011] Preferably, in the production design of the parts, in step b of step B, after the fitting surface is first scraped flat, a 2mm gasket is placed between the lower half of the half wheel cover and the upper half of the half wheel cover to ensure the fitting surface clearance between the lower half of the half wheel cover and the upper half of the half wheel cover.
[0012] Preferably, the plane is produced, and step a in step A is positioned and assembled according to the upper limit stop of the side plate on the workbench to ensure that the centers of the two half-wheel sleeves are coaxial, and the center of the side plate thickness and the half-wheel sleeve thickness are aligned and assembled to ensure that the processing allowance on both sides of the half-wheel sleeve is balanced.
[0013] Preferably, in the flat production, in step c of step A, the plate is preheated to 140°C before welding, and the overall flatness of the side plate and the half wheel sleeve is checked after welding, and the flatness tolerance of the half wheel sleeves on both sides is controlled within ±1mm.
[0014] Preferably, the plane is made, and in step a of step B, when the half-axle sleeve bending part is bent, the outer opening size after bending is controlled to 210±1mm to ensure that there is no step when splicing with the half-axle sleeve, and the groove of the half-axle sleeve bending part is opened on the inside to facilitate the inner welding and the outer carbon planer to reduce the risk of external bulging of the half-axle sleeve bending part after welding.
[0015] Preferably, three-dimensional production, step a in step A, the tooling table is fixed on the steel plate frame according to the ground sample line, leveled, and the positioning dimensions of each limit stop and limit support are detected. If there is a discrepancy in the dimensions, the limit positioning dimensions of the tooling are rechecked and adjusted to ensure that each positioning dimension is within the requirements of the drawing to ensure the dimensional requirements after subsequent assembly line operations.
[0016] Preferably, in three-dimensional production, in step d of step A, a thin template in the shape of a side panel is prepared in advance, and grooves are cut on it. The positions of the grooves are the same as the positions of the vertical partitions and the oblique partitions in the middle. The template is pressed against the side panel, and the positions of the vertical partitions and the oblique partitions are drawn on the side panel with a stone pencil. This saves the step of positioning the vertical partitions and the oblique partitions in a three-dimensional state, thereby improving production efficiency.
[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. The thickness of the thickened plate of the semi-axle sleeve of the present invention is 120mm. Two pieces are cut together, which not only improves the utilization rate, but also greatly reduces the flame cutting deformation and cutting defects. At the same time, the overall rough processing before sawing also greatly reduces the working hours and errors of single-piece machining.
[0018] 2. The thickness of the two pieces of the meniscus of the half wheel sleeve of the present invention are both 120mm, and both have a large arc cutting outer contour. The lower half of the half wheel sleeve is made by connecting 4 pieces together, and the margin of the lower half of the half wheel sleeve and the upper half of the half wheel sleeve in the length direction is increased by 2.5mm. After cutting, the parts are sawed, and the overall utilization rate will be increased by 30%, and the deformation caused by flame cutting is greatly reduced. At the same time, the fitting surfaces of the lower half of the half wheel sleeve and the upper half of the half wheel sleeve are first scraped flat to the theoretical requirements, and a 2mm gasket is used in the middle to block. The lower half of the half wheel sleeve and the upper half of the half wheel sleeve are first put together, machined and drilled as required, and bolted to make a bolted assembly. The assembly is used to form a group with the side panel.
[0019] 3. The present invention uses a tooling table with various limit stops and multiple limit supports, which can reduce the repetitive labor hours of repeated viewing of drawings, positioning, and marking. Relying on the tooling table, the corresponding parts can be quickly and accurately positioned to the correct position, thereby forming an assembly line operation, ensuring production accuracy, and improving manufacturing efficiency.
[0020] 4. When the half-axle sleeve bending part of the present invention is bent, the outer opening size after bending is controlled to be 210±1mm to ensure that there is no step when splicing with the half-axle sleeve. The groove of the half-axle sleeve bending part is opened on the inside to facilitate the inner welding and the outer carbon planer, thereby reducing the risk of external bulging of the half-axle sleeve bending part after welding.
[0021] 5. The three-dimensional installation of the present invention utilizes the designed assembly line to produce the workbench, and the prepared small components and corresponding parts are placed on the workbench in order. There is no need to perform tedious and repetitive work such as individual and self-marking positioning and level adjustment. The process assembly sequence is optimized, the overall production accuracy of the trolley frame is ensured, and the problems of flatness, straightness, verticality, and coaxiality that may occur in the subsequent processes are reduced. Due to the large number of trolley frames, unnecessary pyrotechnic correction is reduced, the manufacturing cost is reduced, the fetal position occupancy time is reduced, and an assembly line operation is formed, which greatly improves production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 The half-axle sleeves of the present invention are cut together, roughly processed together, and then sawn apart to make a small group schematic diagram; Figure 2 It is a schematic diagram of the overall processing of the process bolts used for the half wheel sleeve assembly of the present invention; Figure 3 This is a schematic diagram of the lower half of the half wheel sleeve of the present invention, where four pieces are connected together and the material is cut; Figure 4 , 5 A schematic diagram of the reference line and reference plane for producing the two-wheeled platform frame of the present invention; Figure 6 It is a three-dimensional schematic diagram of the front parts of the platform frame of the present invention; Figure 7 It is a three-dimensional schematic diagram of the internal parts of the trolley frame of the present invention; Figure 8 It is a three-dimensional schematic diagram of the reverse side parts of the platform frame of the present invention; Fig. 9 It is a schematic diagram of the assembly tooling platform of the assembly line of the present invention; Fig.10 It is a schematic diagram of assembling a half-axle sleeve of the assembly line tooling platform of the present invention; Fig.11 This is a schematic diagram of the top plate of the assembly line tooling platform of the present invention; Fig.12 This is a schematic diagram of the assembly end plate of the assembly line tooling platform of the present invention; Fig.13 This is a schematic diagram of the left side panel of the assembly line tooling table of the present invention; Fig.14 This is a schematic diagram of the middle partition plate of the assembly line tooling table of the present invention; Fig.15 This is a schematic diagram of the right side panel of the assembly line tooling table of the present invention; Fig.16 This is a schematic diagram of assembling a sealing plate for a production line tooling station of the present invention; Fig.17 This is a schematic diagram of the assembly base plate of the assembly line tooling platform of the present invention; Fig.18 This is a schematic diagram of assembling the rib plate of the assembly line tooling platform of the present invention; Among them: 1. Lower half of half wheel sleeve, 2. Upper half of half wheel sleeve, 3. Thickened plate of half shaft sleeve, 4. Bending part of half shaft sleeve, 5. End plate, 6. Top plate, 7. Side plate, 8. Bending bottom plate, 9. Inclined partition, 10. Partition, 11. Closing plate, 12. Rib plate I, 13. Rib plate II, 14. Thickened plate of side plate, 15. Workbench, 16. Limit stop of half shaft sleeve, 17. Limit stop of upper part of side plate, 18. Limit support of shaft, 19. Top plate support, 20. Block, 21. Wedge, 22. Limit stop of end plate, 23. Limit adjustment part of end plate, 24. Limit stop of end plate and top plate. DETAILED DESCRIPTION
[0023] In order to deepen the understanding of the present invention, the specific implementation mode of the present invention is described in detail below with reference to the accompanying drawings. This embodiment is only used to explain the present invention and does not constitute a limitation on the protection scope of the present invention.
[0024] like Figure 6-8 As shown, the traveling mechanism trolley frame of the stacker-reclaimer includes side plates 7, a half wheel sleeve assembly, a half shaft sleeve 3 and a half shaft sleeve bending part 4 on both sides. A side plate thickening plate 14 is arranged on the side plate 7 on one side. The half wheel sleeve assembly is mainly composed of a half wheel sleeve lower half 1 and a half wheel sleeve upper half 2. The half shaft sleeve 3 is installed at both ends of the half shaft sleeve bending part 4 to form a half shaft sleeve assembly. A top plate 6 is installed on the side of the half shaft sleeve assembly, and end plates 5 are arranged at both ends of the top plate 6. A side plate 7 is arranged between the two end plates 5. The shaft sleeve opening of the side plate 7 and the half shaft sleeve 3 are installed tightly. The half wheel sleeve upper half 2 is installed in the wheel sleeve opening of the side plate 7, and the half wheel sleeve lower half 1 is installed on the half wheel sleeve upper half 2. A partition 10 is arranged in the middle of the side plate 7. One side of the partition 10 is fixed on the inner side of the half shaft sleeve assembly, and sealing plates 11 are arranged on the two side surfaces of the other side of the partition 10. The side plates 7 on both sides of the partition 10 are provided with oblique partitions 9, and one side of the oblique partition 9 is fixed to the corner of the half-axle sleeve assembly. The bottom plate 8 is provided on the sealing plate 11, and the bottom plate 8 is provided with rib plates I 12 and rib plates II 13 in a square shape. The walking mechanism trolley frame of the present application has the characteristics of simple and reasonable structure, convenient welding and manufacturing, which is conducive to improving welding quality, reducing the amount of pyrotechnic correction, reasonable processing requirements and safe and reliable performance.
[0025] The assembly line manufacturing process of the stacker-reclaimer traveling mechanism trolley frame includes the following steps: 1. Production design of parts A. Production of half-axle sleeve 3: a. Figure 1 , two thick plates are combined together for cutting, and the plate thickness is increased by 10mm for processing allowance; when cutting and nesting, be sure to leave enough gap between parts>14mm to reduce defects and thermal deformation of flame cutting.
[0026] b. After cutting two thick plates, perform rough machining, and machine the center hole and boss. After machining, leave a 5mm machining allowance for the thickness, 5mm machining allowance for the boss thickness and radius, and 20mm for the hole diameter. After machining, saw them in the middle, and there should be no tilt in the thickness direction when sawing, and the cut surface should be flat.
[0027] B. Production of half wheel set a. Figure 2 , 3 , cut the lower half 1 of the half wheel sleeve and the upper half 2 of the half wheel sleeve. When cutting the lower half 1 of the half wheel sleeve, add 5mm margin to the overall outer ring to compensate for the thermal deformation caused by flame cutting, so as not to make the wall thickness of the lower half 1 of the half wheel sleeve thinner after processing and cause insufficient strength. To improve efficiency, 4 pieces of the lower half 1 of the half wheel sleeve are cut together, and 4 pieces of the upper half 2 of the half wheel sleeve are cut together. After cutting, the parts are sawed. To improve utilization, add 2.5mm margin to the ends of the length direction of the lower half 1 and the upper half 2 of the half wheel sleeve, and add 10mm processing margin to the plate thickness. When cutting, pay special attention to the deformation of this part and adjust the machine head in time.
[0028] b. The mating surfaces of the lower half 1 and the upper half 2 of the half wheel cover are first scraped flat, and after processing, a 2mm gasket is placed between the lower half 1 and the upper half 2 of the half wheel cover according to the requirements of the drawing to ensure the mating surface clearance between the lower half 1 and the upper half 2 of the half wheel cover. The lower half 1 and the upper half 2 of the half wheel cover are combined together, and the holes are processed according to the requirements of the drawing. The plate thickness direction is not processed, and the inner circle is only roughly processed. The radius needs to leave a 5mm finishing allowance for the trolley frame subassembly welding.
[0029] The rest of the three-dimensional production is finally machined as a whole: according to the machining drawings, the end face of the half-axle sleeve 3, the side steps, the aperture of the half-wheel sleeve and the end faces on both sides are machined and leveled to ensure that all processing requirements are in line with the drawings.
[0030] c. The plate thickness direction and inner hole finishing work of the lower half 1 of the half wheel sleeve and the upper half 2 of the half wheel sleeve will be processed together after the overall structure of the trolley frame is completed.
[0031] C. Production of other panels a. The top plate 6 and the end plate 5 are punched when they are in the component state.
[0032] b. Since the bottom plate 8 part is narrow at the bending point, it is widened by 50mm and trimmed after bending.
[0033] 2. Graphic production A. The side plate 7 and the half wheel housing assembly form a sheet group a. Production of a three-dimensional closure fixture 15, which is used to fix and limit the side panels and half wheel sets, positioning the side panels 6 and half wheel sets assembly to form an assembly line.
[0034] The side plate upper limit stop 17 on the workbench 15 is positioned and assembled to ensure that the center of the circle of the lower half 1 of the half wheel sleeve and the upper half 2 of the half wheel sleeve are coaxial, and the thickness position of the side plate 7 is aligned with the thickness center of the half wheel sleeve assembly to ensure that the processing allowance on both sides of the half wheel sleeve assembly is balanced.
[0035] b. Position welding in sequence; after the half wheel assembly is bolted together, it is position welded to the side plate 7 as a whole. Before welding, check whether the splicing interface meets the size requirements, check whether the relative position of the side plate 7 and the half wheel assembly is horizontal, the length of the positioning welding is not less than 50mm, and the positioning welding is carried out from the middle to both ends.
[0036] c. Welding: weld from the middle to both ends in sequence. After welding, use a spirit level to check the flatness. If there is deformation, use the pyrotechnician to adjust the welding deformation.
[0037] Before welding, the upper half of the half wheel cover 2 and the side plate 7 need to be preheated to 140°C. After welding the side plate 7 and the upper half of the half wheel cover 2, the overall flatness needs to be checked, especially the flatness tolerance of the upper half of the half wheel cover 2 on both sides should be controlled within ±1mm. Figure 4 The distance tolerance between the reference line D and the center of the half wheel assembly on both sides is ±1mm. Figure 5 The distance tolerance between the reference line C and the center line of the half wheel sleeve assemblies on both sides is ±1mm, and the distance tolerance between the reference line C and the center line B of the end plate is ±1mm.
[0038] B. Group of half-axle sleeve and intermediate half-axle sleeve bending part 4 a. After the semi-axle sleeve 3 parts are processed, they are welded with the semi-axle sleeve bending part 4 to form a semi-axle sleeve assembly, such as Figure 1 , each set of half-axle sleeve assemblies shall be marked with corresponding steel stamp numbers; when bending the half-axle sleeve bending part 4, the outer opening size after bending shall be controlled within 210±1mm, such as Figure 4 The distance tolerance from the reference plane A to the center of the half-wheel sleeve assembly is ±1mm to ensure that there is no step when splicing with the half-axle sleeve 3. The groove of the half-axle sleeve bending part 4 is opened on the inside to facilitate the inner welding and the outer carbon planer, which will reduce the risk of external bulging of the half-axle sleeve bending part 4 after welding.
[0039] b. Use tooling table 15 for assembly line production.
[0040] c. Use the oil cylinder to press and adjust the post-welding deformation of the half-axle sleeve assembly so that all dimensions are within the tolerance range and the flatness is guaranteed.
[0041] 3. 3D production A. Make the assembly line tooling table according to the drawing 15 like Fig. 9 The tooling platform 15 is a frame formed by welding angle steel. A half-axle sleeve limit stop 16 is arranged in the middle of a long side at the top of the tooling platform 15. Axle limit support members 18 are arranged on both sides of the half-axle sleeve limit stop 16. Top plate support members 19 are arranged at both ends of the long side. A side plate upper limit stop 17 is arranged on the top of the half-axle sleeve limit stop 16. A wedge 21 is arranged in the middle of the other long side at the top of the tooling platform 15 through a clamping block 20. The end of the half-axle sleeve limit stop 16 is a fixed clamping position, which is equivalent to a reference line. The wedge 21 can be adjusted up and down to help ensure that the half-axle sleeve assembly can be close to the half-axle sleeve limit stop 16. Axle limit support members 18 are also arranged on both sides of the wedge 21, and top plate support members 19 are also arranged at both ends of this long side. An end plate limit stop 22 is provided on one short side of the top of the tooling table 15, and an end plate limit adjustment member 23 is provided on the other short side. The end of the end plate limit stop 22 is a fixed position, which is equivalent to the reference line. The end plate limit adjustment member 23 can be adjusted left and right to help ensure that the end plate 5 can be close to the end plate limit stop 22. An end plate top plate limit stop 24 is provided at the lower part of the half-axle sleeve limit stop 16, and the top edge of the top plate support member 19 of one long side is fitted and fixed with the inner side edge of the end plate top plate limit stop 24. This tooling table 15 is equipped with various limit stops, multiple limit support members, and multiple top plate support members. Using this tooling table 15 can reduce the repeated labor hours of repeated viewing, positioning, and marking. Relying on the tooling table 15, the corresponding parts can be quickly and accurately positioned to the correct position, thereby forming an assembly line operation, ensuring the manufacturing accuracy, and improving the manufacturing efficiency.
[0042] a. The tooling table 15 needs to be fixed on the steel plate frame according to the ground sample line, leveled, and the positioning dimensions of the half-axle sleeve limit stop 16, limit stop 17, shaft limit support 18, end plate limit stop 22, and end plate top plate limit stop 24 need to be checked. If there is a discrepancy in the dimensions, the limit positioning dimensions of the tooling table 15 need to be rechecked and adjusted to ensure that each positioning dimension is within the requirements of the drawing to ensure the dimensional requirements after subsequent assembly line operations.
[0043] like Fig.10 The half-axle sleeve assembly is placed on the workbench 15, with the left side close to the half-axle sleeve limit stop 16 on the left side, and the two ends of the half-axle sleeve assembly are stuck by the shaft limit support members 18 at four places.
[0044] b. Fig.11 , assemble the top plate 6, place the top plate on the top plate support 19, and the left side is close to the end plate top plate limit stop 24.
[0045] c. Fig.12 , assemble the end plates 5 on both sides, the end plates 5 are close to one side of the top plate 6, and the left end of the end plate 5 is placed in the card groove of the end plate top plate limit stop 24.
[0046] d. Fig.13 , assemble the sheet group on the left side, which has no side plate thickening plate 14; Side panel assembly: the lower half of the half wheel cover 1, the upper half of the half wheel cover 2, the side panel 7 and the side panel thickening plate 14, after being installed to the position of the upper limit stop 17 of the side panel, first use a hanging hammer to check the verticality, then use a spirit level to check the horizontality and then spot weld it in place to ensure that the horizontality and verticality of the side panel 7 meet the standards.
[0047] A thin template in the shape of the side panel 7 is prepared in advance, and grooves are cut on it. The positions of the grooves are the same as those of the middle vertical partitions 10 and the oblique partitions 9. The thin template is placed close to the side panel 7, and the positions of the vertical partitions 10 and the oblique partitions 9 are drawn on the side panel 7 with a stone pencil. This saves the step of positioning the vertical partitions 10 and the oblique partitions 9 in a three-dimensional state, thereby improving production efficiency.
[0048] e. Fig.14 , assemble the middle vertical partition 10 and the inclined partition 9.
[0049] f. Fig.15 , assemble the sheet group on the right side. This side panel 7 has a side panel thickening plate 14. The thickness of the side panel thickening plate 14 plus a 5mm margin, the inner side is flattened and welded with the side panel 7, and the margin is left on the outside, and then the whole is machined for adjustment and assembly with the torque arm.
[0050] g. Fig.16 , assemble the sealing plate 11.
[0051] h. Fig.17 , assemble the base plate 8.
[0052] i. Such as Fig.18 , assemble the rib plate Ⅰ12 and the rib plate Ⅱ13 on the bottom plate 8.
[0053] B. After positioning welding, check the assembly dimensions Mainly, the center distance between the lower half of the half wheel sleeve 1 and the upper half of the half wheel sleeve 2 is 400+1mm, and the center distance between the center of the half wheel sleeve assembly and the center of the half shaft sleeve 3 is 435+1mm, to ensure that the welding meets the requirements of the machining drawings. If there is a size discrepancy, it is necessary to recheck the limit positioning size of the tooling and adjust it to ensure the size requirements after the subsequent assembly line operation. When welding, it must be welded symmetrically from the middle to both sides in sequence. After welding, check the flatness with a level ruler. If there is deformation, the pyrotechnician adjusts the welding deformation.
[0054] C. Machining According to the machining drawings, process the end face of the half-shaft sleeve 3, the side steps, the aperture of the half-wheel sleeve, and the end faces on both sides. Ensure that all machining requirements are in line with the drawings.
[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. The stacker-reclaimer traveling mechanism carriage frame is characterized by: It includes side panels on both sides, half-wheel sleeve assemblies, half-axle sleeves and half-axle sleeve bending parts; a side panel thickening plate is arranged on the side panel on one side; the half-wheel sleeve assembly is mainly composed of the lower half of the half-wheel sleeve and the upper half of the half-wheel sleeve; half-axle sleeves are installed at both ends of the half-axle sleeve bending part to form a half-axle sleeve assembly; a top plate is installed on the side of the half-axle sleeve assembly, end plates are arranged at both ends of the top plate, and a side plate is arranged between the two end plates, and the axle sleeve opening of the side plate and the half-axle sleeve are installed tightly; the upper half of the half-wheel sleeve is installed in the wheel sleeve opening of the side plate, and the lower half of the half-wheel sleeve is installed on the upper half of the half-wheel sleeve; a partition is arranged in the middle of the side panel; one side of the partition is fixed on the inner side of the half-axle sleeve assembly, and closing plates are arranged on the two side surfaces of the other side of the partition; inclined partitions are arranged on the side panels on both sides of the partition, and one side of the inclined partition is fixed on the corner of the half-axle sleeve assembly; a bottom plate is arranged on the closing plate, and a rib plate is arranged on the bottom plate.
2. The assembly line manufacturing process of the stacker-reclaimer traveling mechanism trolley frame is characterized by: The following steps are involved:
1. Production design of parts A. Production of half-shaft sleeves a. Two thick plates are combined together for cutting, and the plate thickness is increased by 10mm for machining allowance; b. Rough machining after cutting, machining center hole and boss, leaving 5mm machining allowance for thickness after machining, 5mm machining allowance for boss thickness and radius, 20mm for hole diameter, sawing from the middle after machining; B. Production of half wheel set a. Cut the lower half of the half wheel sleeve and the upper half of the half wheel sleeve. To improve efficiency, cut the 4 lower half of the half wheel sleeve together and the 4 upper half of the half wheel sleeve together. After cutting, saw the parts apart. Add 2.5mm margin at the end of the length direction of the lower half of the half wheel sleeve and the upper half of the half wheel sleeve; b. Scrape the mating surfaces of the lower half of the half wheel sleeve and the upper half of the half wheel sleeve flat first, combine the lower half of the half wheel sleeve and the upper half of the half wheel sleeve together, and drill holes on the inner circle according to the requirements of the drawing, without processing in the plate thickness direction; c. The plate thickness direction and inner hole finishing work of the lower half of the half wheel sleeve and the upper half of the half wheel sleeve will be processed together after the overall structure of the trolley frame is completed; C. Production of other panels a. Punch holes on the top plate and end plate when they are in the part state; b. Since the bottom plate is narrow at the bend, it is widened by 50mm and trimmed after bending; 2. Graphic production A. The side panel and half wheel housing assembly form a sheet group a. Make a tooling table for positioning, position the side panels and half wheel assembly, and form an assembly line; b. Position welding in sequence; after the half wheel assembly is bolted together, it is position welded to the side plate as a whole. Before welding, check whether the splicing interface meets the size requirements, check whether the relative position of the side plate and the half wheel assembly is horizontal, the length of the positioning welding is not less than 50mm, and the positioning welding is carried out from the middle to both ends; B. Group of half-axle sleeve and middle half-axle sleeve bending parts a. After the half-axle sleeve parts are processed, they are welded with the half-axle sleeve bending parts to form a half-axle sleeve assembly. Each set of half-axle sleeve assemblies is marked with corresponding steel stamp numbers; b. Use tooling tables for assembly line production; c. Use the oil cylinder to press and adjust the post-welding deformation of the half-shaft sleeve assembly so that all dimensions are within the tolerance range; 3. Stereoscopic Production A. Make the assembly line tooling table according to the drawing a. Place the half-axle sleeve assembly on the workbench, with one end close to the half-axle sleeve limit stop, and both ends of the half-axle sleeve assembly are locked by the shaft limit support; b. Assemble the top plate, place the top plate on the top plate support, and place one side close to the top plate limit stop of the end plate; c. Assemble the end plates on both sides, and place one end of the end plate in the slot of the limit stop on the top plate of the end plate; d. Assemble the sheet group on one side, there is no side plate thickening plate on this side; e. Assemble the middle vertical partitions and inclined partitions; f. Assemble the sheet group on the other side, add 5mm margin to the thickness of the side plate, flatten and weld the inner side surface with the side plate, and leave the margin on the outside for subsequent overall machining; g. Assemble the sealing plate; h. Assemble the base plate; i. Assemble the ribs on the bottom plate; B. Check the dimensions after positioning welding If there is a discrepancy in the dimensions, it is necessary to recheck the limit positioning dimensions of the tooling and make adjustments; C. Overall machining According to the machining drawings, process the end face of the half-shaft sleeve, the side steps, the aperture of the half-wheel sleeve and scrape the end faces on both sides to ensure that all processing requirements are in line with the drawings.
3. The assembly line manufacturing process of the stacker-reclaimer traveling mechanism trolley frame according to claim 2 is characterized in that: The workbench is a frame formed by welding angle steels, a half-axle sleeve limit stop is arranged in the middle of a long side of the top of the workbench, and top plate support members are respectively arranged at both ends of the long side; shaft limit support members are arranged on both sides of the half-axle sleeve limit stop; a side plate upper limit stop is arranged on the top of the half-axle sleeve limit stop; a wedge is arranged in the middle of the other long side of the top of the workbench through a clamping block, and top plate support members are also respectively arranged at both ends of this long side; shaft limit support members are also arranged on both sides of the wedge; an end plate limit stop is arranged on a short side of the top of the workbench, and an end plate limit adjustment member is arranged on the other short side; an end plate top plate limit stop is arranged at the lower part of the half-axle sleeve limit stop.
4. The assembly line manufacturing process of the stacker-reclaimer traveling mechanism trolley frame according to claim 2 is characterized in that: The production design of the parts, step a in step B, when cutting the lower half of the half wheel sleeve, add a 5mm margin to the overall outer ring.
5. The assembly line manufacturing process of the stacker-reclaimer traveling mechanism trolley frame according to claim 2 is characterized in that: In the production design of the parts, in step b of step B, after the fitting surface is first scraped flat, a 2mm gasket is placed between the lower half of the half wheel cover and the upper half of the half wheel cover.
6. The assembly line manufacturing process of the stacker-reclaimer traveling mechanism trolley frame according to claim 2 is characterized in that: The plane production, step a in step A, is positioned and assembled according to the upper limit stop of the side panel on the workbench, and the side panel thickness and the center thickness of the half wheel sleeve are aligned and assembled.
7. The assembly line manufacturing process of the stacker-reclaimer traveling mechanism trolley frame according to claim 2 is characterized in that: In the plane production, step c in step A, the plate is preheated to 140° C. before welding, and the overall flatness of the side plate and the half wheel sleeve is checked after welding. The flatness tolerance of the half wheel sleeves on both sides is controlled within ±1 mm.
8. The assembly line manufacturing process of the stacker-reclaimer traveling mechanism trolley frame according to claim 2 is characterized in that: In the plane production, in step a of step B, when the half-axle sleeve bending part is bent, the outer opening size after bending is controlled to be 210±1 mm, and the groove of the half-axle sleeve bending part is opened on the inner side.
9. The assembly line manufacturing process of the stacker-reclaimer traveling mechanism trolley frame according to claim 2, characterized in that: In the three-dimensional production, step a in step A, the tooling table is fixed on the steel plate frame according to the ground sample line, leveled, and the positioning dimensions of each limit stop and limit support are detected. If the dimensions do not match, the limit positioning dimensions of the tooling are rechecked and adjusted.
10. The assembly line manufacturing process of the stacker-reclaimer traveling mechanism trolley frame according to claim 2, characterized in that: In the three-dimensional production, step d in step A is to prepare a thin template in the shape of a side panel in advance, and to cut grooves thereon. The positions of the grooves are the same as the positions of the vertical partitions and the oblique partitions in the middle. The template is pressed against the side panel, and the positioning of the vertical partitions and the oblique partitions is drawn on the side panel with a stone pencil.