An agricultural machine track assembly process

Abstract

The application relates to the technical field of track assembly processes, in particular to an agricultural machinery track assembly process, which comprises the following steps: S1: drawing an agricultural machinery model and a track model thereof to generate an agricultural machinery chassis model. In the application, the agricultural machinery chassis model is generated, and the model is tested to obtain the required track plate model, quantity and actual running interval data of the corresponding agricultural machinery, so that the availability of the mechanical track is ensured, the mechanical track product quality is ensured through the steps of burr treatment and heat treatment in the mechanical track pretreatment link, the damage caused by the fact that the joint quality does not meet the requirements is avoided, in the assembly link, the track is tensioned to a proper tightness according to the track plug interval of the combined track file, the assembly detection and test running after assembly are used to ensure the availability of the final product, and the effect of assembling the track with higher precision and conformity is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of track assembly process, in particular to a track assembly process for agricultural machinery. BACKGROUND

[0002] The track assembly process is a professional process for assembling tracks for the walking mechanism of corresponding mechanical equipment, which aims to ensure that the mechanical equipment can ensure driving effect in the corresponding place and avoid damage caused by friction between the walking mechanism and the road surface. The existing track assembly process often relies on manual operation by operators, and the specifications of agricultural machinery have diversified characteristics. In the actual assembly of the track, the matching degree of the mechanical track may cause post-adaptation difficulties, track drive wheel wear and other conditions, and the selection of the track depends highly on the quality of the finished track product, which may not meet the standards and needs to be improved. SUMMARY

[0003] The present application aims to solve the shortcomings in the prior art and proposes a track assembly process for agricultural machinery.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a track assembly process for agricultural machinery, comprising the following steps:

[0005] S1: drawing of an agricultural machinery model and its track model, generating an agricultural machinery chassis model;

[0006] S2: model trial run;

[0007] S3: selecting a corresponding type of mechanical track based on the size, number and spacing of the combined track file;

[0008] S4: mechanical track pretreatment;

[0009] S5: pre-assembly link;

[0010] S6: tightening and fixing;

[0011] S7: assembly detection and trial run.

[0012] As a further scheme of the present application, in S1, the agricultural machinery model specifically refers to the drive wheel and load wheel model of the agricultural machinery chassis, and the drawing step of the agricultural machinery model comprises:

[0013] S111: establishing corresponding group number drive wheel and load wheel model files based on the agricultural machinery wheel skeleton, wherein the drive wheel model file is not less than four groups, and the load wheel model is set according to the number of groups of the agricultural machinery counterweight;

[0014] S112: performing direction constraint, setting a holding offset for the drive wheel model;

[0015] S113: setting constraint for the load wheel model according to S112, completing the establishment of the agricultural machinery model file.

[0016] As a further scheme of the present application, the step of the track model drawing is specifically:

[0017] S121: based on the drive wheel and load wheel model files, importing a single track plug-in in a unified operation space;

[0018] S122: based on the external contour of the agricultural machinery model file, establishing a closed loop path on one side thereof;

[0019] S123: placing the single track plug-in into a base point of the closed loop path;

[0020] S124: along the closed loop path, arraying the track plug-ins at equal intervals in the form of loading chain curves, wherein the arrayed track plug-ins are required to be connected with each other and to be matched with the drive wheel and load wheel models, generating a combined track file and recording the arrayed number;

[0021] S125: selecting a central position of the agricultural machinery model as a basic surface and mirroring the combined track file.

[0022] As a further scheme of the present application, in S2, the step of the model trial operation is specifically:

[0023] S210: setting the drive wheel and load wheel model files and the combined track file as dynamic blocks;

[0024] S220: in the block editor, setting corresponding base points and objects;

[0025] S230: in the action menu, setting an operation path;

[0026] S240: operating the trial operation and setting a running diagnosis, if the operation is successful, proceeding to the next step, and if the operation fails, returning to S124 and adjusting the arrayed number.

[0027] As a further scheme of the present application, the mechanical track pretreatment includes burr treatment and heat treatment, and the step of the burr treatment is specifically:

[0028] S411: removing residual sand and stones on the surface of the track plate element of the mechanical track;

[0029] S412: Put the mechanical track into the shot blasting machine for shot blasting and polishing treatment, wherein the shot blasting machine adopts a shot blasting diameter of 1.5-2 mm, and the shot blasting and polishing treatment time is 10 min;

[0030] S413: Appearance detection is performed on the track shoe element, and further polishing and burr cutting are performed;

[0031] S414: Appearance detection is performed again, and the track shoe element that does not meet the specifications is eliminated.

[0032] As a further scheme of the present application, the step of heat treatment is specifically:

[0033] S421: Normalizing treatment is performed on the track shoe element by a high-temperature heat treatment furnace;

[0034] S422: Tempering treatment is performed, wherein the tempering treatment temperature is 600-640 DEG C, and the time is 4h;

[0035] S423: The track shoe element is immersed in a quenching liquid to complete the overall heat treatment;

[0036] S424: The track shoe element is assembled to build a mechanical track.

[0037] As a further scheme of the present application, in S421, the required temperature of the normalizing treatment is 900-920 DEG C, the normalizing treatment includes a heating stage and a holding stage, and the normalizing treatment specifically comprises: placing the track shoe element into a high-temperature heat treatment furnace, entering the heating stage, raising the temperature in the high-temperature heat treatment furnace to the required temperature, and then entering the holding stage, wherein the time of the heating stage is 3-4h, and the time of the holding stage is 1h.

[0038] As a further scheme of the present application, in S5, the step of the pre-assembly link is specifically:

[0039] S510: Based on the driving wheel position of the agricultural machinery model, a jack is used to lift the agricultural machinery on the side;

[0040] S520: Loosen the tensioning device, and set the mechanical track on the surface of the driving wheel and the supporting wheel;

[0041] S530: Combine the starting end and the end of the mechanical track, and insert the movable shaft to lock and fix.

[0042] As a further scheme of the present application, in the S6, the tightening and fixing comprises tensioning the track and fixing the bolt, the tensioning track specifically refers to tensioning the track according to the track plug-in spacing of the combined track file to a proper tightness, avoiding the elongation of the mechanical track, the change of the pitch or the abnormal wear of the driving wheel in the later period, and the fixing bolt specifically refers to driving the bolt into the corresponding connecting position of the joint to be fixed and locked, avoiding the mechanical track from falling off or skipping teeth in the later period.

[0043] As a further scheme of the present application, in the S7, the step of assembly detection and trial operation specifically comprises:

[0044] S710: checking the stability of the locking position of the movable shaft;

[0045] S720: starting the driving wheel in the state of the jack support, detecting the linkage between the track plates and the driving effect of the driving wheel and the supporting wheel on the mechanical track, if the state is not matched, checking the spacing between the track plates again and adjusting the tightness;

[0046] S730: retracting the jack until the agricultural machinery touches the bottom, starting the agricultural machinery again for detection to ensure the running stability.

[0047] Compared with the prior art, the present application has the advantages and positive effects that:

[0048] In the present application, the model of the agricultural machinery chassis is generated, and the model is trial operated to obtain the required track plate type, quantity and actual running spacing data of the corresponding agricultural machinery, ensure the availability of the mechanical track, and through the steps of burr treatment and heat treatment in the pretreatment link of the mechanical track, the quality of the mechanical track product is ensured, and the damage caused by the quality of the joint not meeting the requirements is avoided, so as to ensure the operability of the actual assembly and the service life of the assembled mechanical track, and in the assembly link, the track is tensioned to a proper tightness according to the track plug-in spacing of the combined track file, avoiding the elongation of the mechanical track, the change of the pitch or the abnormal wear of the driving wheel in the later period, and through the assembly detection and trial operation after the assembly is completed, the availability of the final product is ensured, achieving the effect of higher precision and compliance of the assembled track. BRIEF DESCRIPTION OF DRAWINGS

[0049] Figure 1 A main step schematic diagram of an agricultural machinery track assembly process is provided for the present application;

[0050] Figure 2 A detailed schematic diagram of the drawing steps of the agricultural machinery model of the agricultural machinery track assembly process is provided for the present application;

[0051] Figure 3 A detailed schematic diagram of the drawing steps of the track model of the agricultural machinery track assembly process is provided for the present application;

[0052] Figure 4 A detailed schematic diagram of step 2 of the agricultural machinery track assembly process is provided for the present application;

[0053] Figure 5 A detailed schematic diagram of the burr processing step of the agricultural machinery track assembly process is provided for the present application;

[0054] Figure 6 A detailed schematic diagram of the heat treatment step of the agricultural machinery track assembly process is provided for the present application;

[0055] Figure 7 A detailed schematic diagram of step 5 of the agricultural machinery track assembly process is provided for the present application;

[0056] Figure 8 A detailed schematic diagram of step 7 of the agricultural machinery track assembly process is provided for the present application. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0058] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, in the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0059] Example one

[0060] Please refer to Figure 1 The present application provides a technical solution: an agricultural machinery track assembly process, comprising the following steps:

[0061] S1: agricultural machinery model and its track model drawing, generating an agricultural machinery chassis model;

[0062] S2: model trial operation;

[0063] S3: based on the track size, number and spacing of the combined track file, select the corresponding type of mechanical track;

[0064] S4: mechanical track pretreatment;

[0065] S5: pre-assembly link;

[0066] S6: tightening and fixing;

[0067] S7: assembly detection and trial run.

[0068] By generating an agricultural machinery chassis model and model trial run, the required track plate model, quantity and actual running pitch data of the corresponding agricultural machinery are obtained, the availability of the mechanical track is ensured, and through the steps of burr treatment and heat treatment in the mechanical track pretreatment link, the quality of the mechanical track product is ensured, and the quality of the joint is avoided. Damage does not meet the needs, so as to ensure the operability of actual assembly and the service life of the assembled mechanical track, and in the assembly link, according to the track plug-in pitch of the combined track file, the track is tensioned to the appropriate tightness, avoiding the elongation of the mechanical track, the change of pitch or the abnormal wear of the driving wheel later, and through the assembly detection and trial run after assembly, the availability of the final product is ensured, and the effect of higher precision and compliance assembly track is achieved

[0069] Please refer to Figure 2 , in S1, the agricultural machinery model specifically refers to the driving wheel and load wheel model of the agricultural machinery chassis, and the drawing steps of the agricultural machinery model include:

[0070] S111: Based on the agricultural machinery wheel skeleton, the corresponding group number of driving wheel and load wheel model files is established, wherein the driving wheel model file is not less than four groups, and the load wheel model is set according to the weight of the agricultural machinery. Group number;

[0071] S112: Perform direction constraint, first set the driving wheel model to maintain offset;

[0072] S113: According to the step S112, set the constraint of the load wheel model, and complete the establishment of the agricultural machinery model file.

[0073] Please refer to Figure 3 , the steps of drawing the track model are as follows:

[0074] S121: Based on the driving wheel and load wheel model file, import the matching single track plug-in in the unified operation space;

[0075] S122: Based on the external contour of the agricultural machinery model file, establish a closed loop path on one side;

[0076] S123: Place the single track plug-in in a certain base point of the closed loop path;

[0077] S124: Along the closed loop around the path, in the form of loading chain curve, etc. Array track insert, wherein the array track insert requires the connection between the track insert, and the track insert and drive wheel and load wheel model fit, generate combined track file, and record the array number;

[0078] S125: Select the agricultural machinery model as the basic surface, mirror combined track file.

[0079] Please refer to Figure 4 , S2, the model test run step is specifically:

[0080] S210: Set the drive wheel and load wheel model file and the combined track file as a dynamic block;

[0081] S220: In the "block editor", set the corresponding base point, object;

[0082] S230: In the "action" menu, set up the operation path;

[0083] S240: Operation test run, and set the running diagnosis, if the operation is successful, then enter the next step, if the operation fails, return to step S124, and adjust the array number.

[0084] Please refer to Figure 5 , the mechanical track pretreatment includes deburring and heat treatment, the steps of deburring are specifically:

[0085] S411: Remove the residual sand on the surface of the track plate element of the mechanical track;

[0086] S412: Put the mechanical track into the shot blasting machine for shot blasting and polishing treatment, wherein the shot blasting machine adopts shot blasting diameter of 1.5-2mm, and the shot blasting and polishing treatment time is 10min;

[0087] S413: Appearance detection is carried out on the track plate element, and further polishing and deburring are carried out;

[0088] S414: Appearance detection is carried out again, and the track plate element which does not meet the specifications is eliminated.

[0089] Please refer to Figure 6 , the steps of heat treatment are specifically:

[0090] S421: Normalizing treatment is carried out on the track plate element by high temperature heat treatment furnace;

[0091] S422: Tempering treatment is carried out, wherein the temperature of the tempering treatment is 600-640℃, and the time is 4h;

[0092] S423: The track plate element is immersed into the quenching liquid to complete the overall heat treatment;

[0093] S424: Assemble the track shoe elements to build the mechanical track.

[0094] In S421, the required temperature for the normalizing treatment is 900-920°C. The normalizing treatment includes a heating-up stage and a holding stage. The normalizing treatment specifically involves placing the track shoe elements into a high-temperature heat treatment furnace, entering the heating-up stage, and raising the temperature in the high-temperature heat treatment furnace to the required temperature, and then entering the holding stage. The time for the heating-up stage is 3-4h, and the time for the holding stage is 1h.

[0095] Please refer to Figure 7 In S5, the steps of the pre-assembly stage are specifically as follows:

[0096] S510: Establish the position of the drive wheel based on the agricultural machinery model, and use a jack to lift the agricultural machinery on the side;

[0097] S520: Loosen the tensioning device, and wrap the mechanical track around the surface of the drive wheel and the load wheel;

[0098] S530: Combine the starting end and the end of the mechanical track, and insert them into the movable shaft to lock and fix them.

[0099] In S6, the tightening and fixing include tightening the track and fixing the bolts. The tightening of the track specifically refers to tightening the track to an appropriate tightness according to the track spacing of the combined track file, so as to avoid elongation of the mechanical track, changes in pitch, or abnormal wear of the drive wheel later. The fixing of the bolts specifically refers to driving bolts into the corresponding connection positions of the joints to lock and fix them, so as to avoid the mechanical track from falling off or jumping teeth later.

[0100] Please refer to Figure 8 In S7, the steps of the assembly detection and trial operation are specifically as follows:

[0101] S710: Check the stability of the locking position of the movable shaft;

[0102] S720: Under the support state of the jack, start the drive wheel, detect the linkage between the track shoe elements, and detect the driving effect of the drive wheel and the load wheel on the mechanical track. If there is a mismatch, check the spacing between the track shoe elements again and adjust the tightness.

[0103] S730: Contract the jack until the agricultural machinery touches the bottom, and then start the agricultural machinery again for detection to ensure the running stability.

[0104] Working principle: agricultural machinery model and its track model drawing, generate agricultural machinery chassis model [agricultural machinery model refers to the drive wheel and load wheel model of agricultural machinery chassis, the drawing steps of agricultural machinery model include (based on the agricultural machinery wheel skeleton, establish the corresponding group number of drive wheel and load wheel model file, wherein the drive wheel model file is not less than four groups, the load wheel model is set according to the weight of agricultural machinery Group number, execute direction constraint, first step to drive wheel model setting keep offset, set constraint for load wheel model, complete the establishment of agricultural machinery model file), the steps of track model drawing are as follows (based on the drive wheel and load wheel model file, import the corresponding single track plug-in in the unified operation space, based on the external contour of agricultural machinery model file, establish a closed loop path on one side, put the single track plug-in into a certain base point of the closed loop path, along the closed loop path, array the track plug-in in the way of loading chain curve with equal interval, wherein the arrayed track plug-in requires that the track plug-ins are connected with each other, and the track plug-ins are matched with the drive wheel and load wheel model, generate combined track file, and record the array number, select the central position of agricultural machinery model as the basic surface, mirror the combined track file)]; Model test run (set the drive wheel and load wheel model file and the combined track file as dynamic blocks, set the corresponding base point and object in "block editor", set up operation path in "action" menu, operation test run, and set running diagnosis, if the running is successful, enter the next step, if the running fails, return to step S124, and adjust the array number); Select the corresponding type of mechanical track based on the size, number and spacing of the combined track file; Mechanical track pretreatment [deburring treatment (remove the residual sand on the surface of the track plate original piece of the mechanical track, put the mechanical track into the shot blasting machine for shot blasting and polishing treatment, wherein the shot blasting machine adopts shot blasting diameter of 1.5-2mm, the time of the shot blasting polishing treatment is 10min, the appearance of the track plate element is detected, and the burrs are further polished and cut off, the appearance is detected again, and the track plate element that does not meet the specification is eliminated) and heat treatment (the track plate element is normalized by the high-temperature heat treatment furnace, the required temperature of the normalizing treatment is 900-920 DEG C, the normalizing treatment includes a heating stage and a holding stage, the normalizing treatment is that the track plate element is placed into the high-temperature heat treatment furnace, and enters the heating stage, the temperature in the high-temperature heat treatment furnace is raised to the required temperature, and then enters the holding stage, the time of the heating stage is 3-4h, the time of the holding stage is 1h, the tempering treatment is carried out, wherein the temperature of the tempering treatment is 600-640 DEG C, and the time is 4h, the track plate element is immersed into the quenching liquid to complete the overall heat treatment, the track plate element is assembled, and the mechanical track is constructed); pre-assembly (the position of the driving wheel based on the agricultural machinery model is set, the agricultural machinery is lifted by the jack on the side, the tensioning device is loosened, the mechanical track is sleeved on the surface of the driving wheel and the load wheel, the starting end and the end of the mechanical track are combined and inserted into the movable shaft lock fixed); tightening and fixing (the tightening and fixing include the tensioning track and the fixing bolt, the tensioning track specifically refers to the tensioning track to the appropriate tightness according to the pitch of the track insert of the combined track file, so as to avoid the elongation of the mechanical track, the change of the pitch or the abnormal wear of the driving wheel later, the fixing bolt specifically refers to the bolt that is punched into the corresponding connection position of the joint to be fixed and locked, so as to avoid the mechanical track from falling off or jumping teeth later); assembly detection and trial operation (the stability of the movable shaft lock position is checked, the driving wheel is started under the condition of the jack support, the linkage between the track plate elements and the driving effect of the driving wheel and the load wheel on the mechanical track are detected, if the state does not fit, the pitch between the track plate elements is checked again, and the tightness is adjusted, the jack is retracted, until the agricultural machinery touches the bottom, the agricultural machinery is started again for detection, and the running stability is ensured).

[0105] The above is only a preferred embodiment of the present application, and does not limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made on the basis of the technical essence of the present application to the above embodiments still belongs to the protection scope of the technical solution of the present application.

Claims

1. A process for assembling tracks of agricultural machinery, characterized in that: The following steps are involved: S1: Draw the agricultural machinery model and its track model to generate the agricultural machinery chassis model; S2: Model trial run; S3: Based on the crawler size, quantity, and spacing of the combined crawler file, select the corresponding model of mechanical crawler; S4: mechanical track pretreatment; S5: pre-assembly stage; S6: tightening and fixing; S7: assembly inspection and trial operation; In S1, the agricultural machinery model specifically refers to the driving wheel and load-bearing wheel models of the agricultural machinery chassis. The steps of drawing the agricultural machinery model include: S111: Based on the wheel skeleton of the agricultural machinery, a corresponding number of driving wheel and load-bearing wheel model files are created, wherein the driving wheel model files are at least four groups, and the number of load-bearing wheel models is set according to the counterweight of the agricultural machinery; S112: Execute the direction constraint and set the driving wheel model to maintain the offset first; S113: According to step S112, constraints are set on the load-bearing wheel model to complete the creation of the agricultural machinery model file; In S1, the steps of drawing the track model are specifically as follows: S121: Based on the driving wheel and load-bearing wheel model files, a single track plug-in is imported into the unified operation space; S122: Based on the outer contour of the agricultural machinery model file, a closed surrounding path is established on one side; S123: placing a single crawler plug-in into a base point of the closed circular path; S124: Arraying track plug-ins at equal intervals along the closed circular path in the manner of loading a chain curve, wherein the track plug-ins are required to be connected to each other and to match the drive wheel and load-bearing wheel models, generating a combined track file, and recording the number of arrays; S125: Select the center position of the agricultural machinery model as the base surface and mirror the combined crawler file.

2. The agricultural machinery crawler track assembly process according to claim 1, characterized in that: In S2, the steps of the model trial run are specifically as follows: S210: setting the driving wheel and load-bearing wheel model files and the combined crawler file as dynamic blocks; S220: In the "Block Editor", set the corresponding base point and object; S230: In the "Action" menu, set the operation path; S240: Perform a trial run and set up a run diagnosis. If the run is successful, proceed to the next step. If the run fails, return to step S124 and adjust the array quantity.

3. The agricultural machinery crawler track assembly process according to claim 1, characterized in that: In S4, the mechanical crawler pretreatment includes burr treatment and heat treatment, and the burr treatment steps are specifically as follows: S411: Remove residual sand and gravel from the surface of the original track shoe of the mechanical track; S412: placing the mechanical crawler in a shot blasting machine for shot blasting and grinding, wherein the shot blasting machine uses a shot diameter of 1.5-2 mm and the shot blasting and grinding time is 10 minutes; S413: Perform appearance inspection on the original track shoe and further polish and remove burrs; S414: Perform visual inspection again and eliminate track shoe components that do not meet the specifications.

4. The agricultural machinery crawler track assembly process according to claim 3, characterized in that: The heat treatment steps are specifically as follows: S421: Normalizing the original track shoe components in a high-temperature heat treatment furnace; S422: performing tempering treatment, wherein the tempering treatment temperature is 600°C-640°C and the time is 4 hours; S423: Immerse the original track shoe into the quenching liquid to complete the overall heat treatment; S424: Assemble the original track shoe parts and build the mechanical track.

5. The agricultural machinery crawler track assembly process according to claim 4, characterized in that: In S421, the required temperature of the normalizing treatment is 900℃-920℃, and the normalizing treatment includes a heating stage and a holding stage. The normalizing treatment specifically involves placing the track shoe original component into a high-temperature heat treatment furnace, and entering the heating stage to increase the temperature in the high-temperature heat treatment furnace to the required temperature, and then entering the holding stage. The heating stage lasts for 3-4 hours, and the holding stage lasts for 1 hour.

6. The agricultural machinery crawler track assembly process according to claim 1, characterized in that: In S5, the steps of the pre-assembly link are specifically as follows: S510: Based on the driving wheel of the agricultural machinery model, the agricultural machinery is lifted up by a jack on the side; S520: Loosen the tensioning device and put the mechanical crawler on the surface of the driving wheel and the load-bearing wheel; S530: Assemble the starting and ending ends of the mechanical crawler and insert the movable shaft to lock and secure.

7. The agricultural machinery crawler track assembly process according to claim 1, characterized in that: In said S6, said tightening and fixing include tensioning the track and fixing bolts. Said tensioning the track specifically refers to tensioning the track to a suitable tightness according to the track plug-in spacing of the combined track file to avoid the mechanical track from stretching, pitch changes or abnormal wear of the driving wheel in the later stage. Said fixing bolts specifically refer to driving bolts into the corresponding connection position of the joint to fix and lock it to avoid the mechanical track from falling off or jumping teeth in the later stage.

8. The agricultural machinery crawler track assembly process according to claim 1, characterized in that: In S7, the steps of assembly inspection and trial operation are specifically as follows: S710: Check the stability of the locked position of the movable shaft; S720: Under the jack support state, start the driving wheel and check the linkage between the track shoe components, as well as the driving effect of the driving wheel and the load-bearing wheel on the mechanical crawler track. If there is any mismatch, check the spacing between the track shoe components again and adjust the tightness; S730: Retract the jack until the agricultural machinery touches the bottom, start the agricultural machinery and perform another test to ensure operational stability.

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