A tractor with a series cab and a method of designing the same

Abstract

The application discloses a tractor with serialized cabs and cabs and a design method thereof. The tractor comprises a cab and a cab corresponding to the model of the tractor; the cab comprises a detachable cab body and a front face, and the cab body comprises a top cover and side plates one and two welded on both sides of the top cover; the cab comprises a left side assembly and a right side assembly, and the rear ends of the left side assembly and the right side assembly are provided with variable straight lines, and the variable straight lines of the left side assembly and the right side assembly are connected; the front ends of the left side assembly and the right side assembly are connected through a plurality of front cross beams, and the middle part of one of the front cross beams is provided with an invariable mounting section for mounting an instrument desk. The cab and the cab of the application can be configured on tractors of different models, the cab and the cab are universalized, and the design efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of tractors, and in particular to a tractor with a serialized hood and a cab and a design method thereof. Background Art

[0002] When designing tractors, there are significant differences in the designs of hoods and cabs for models with different horsepower platforms. The lack of top-level planning leads to repeated designs of tractors with different horsepower platforms, and the commonality of parts on each platform is poor, which is not conducive to reducing parts costs.

[0003] Tractor hoods are complex structures and are often molded, resulting in high product value and long design and development cycles. Existing tractor hood designs lack a unified plan for hoods on different platforms, resulting in significant variations in hood form and an inability to universally apply structural solutions. This results in a long design and development cycle for each tractor model, high investment costs, and low development efficiency.

[0004] The tractor cab has many related assemblies and many factors that affect changes. The existing tractor products have poor universal design, low universality of the cab subsystems, subassemblies, and parts, and non-universal tooling and fixtures. This leads to repeated design and repeated investment in tractor cabs for different platforms, and low efficiency in cab design, development, production, and assembly.

[0005] Most of the existing technologies are structural designs of tractor hoods, cabs and other systems, focusing on the structural design and innovation of a single specific model system and components, and lacking design methods and structural design solutions for a series of tractor hoods and cabs.

[0006] The existing tractor hoods and cabs have the following shortcomings: (1) Existing tractor hoods and cabs only involve the structural design of a specific single product, lacking a top-level planning design for a series of tractors and no series structural design scheme. (2) Due to the differences in engine structures of products on different platforms, the existing tractor hood structural design is only targeted at specific models. The hood structural schemes of tractors on different platforms are inconsistent, resulting in low design efficiency. (3) Existing tractor cabs have poor cross-platform universality and a lot of repeated designs. Summary of the Invention

[0007] The object of the present invention is to provide a tractor with a serialized hood and cab and a design method thereof, so as to solve the problem of poor universality of tractor hoods and cabs in the prior art.

[0008] To achieve the above object, the present invention is implemented by adopting the following technical solutions:

[0009] In a first aspect, the present invention discloses a tractor having a serialized hood and cab, wherein the hood and cab are configured according to the model of the tractor;

[0010] The cab includes a detachable cab body and a front face, the cab body includes a top cover and side plates one and two welded on both sides of the top cover;

[0011] The cab includes left and right side assemblies, the rear ends of the left and right side assemblies are provided with variable straight lines, the variable straight lines of the left and right side assemblies are connected, and the front ends of the left and right side assemblies are connected through a plurality of front cross beams, wherein the middle part of one of the front cross beams is provided with an invariable mounting section for mounting an instrument desk.

[0012] Further, the cab further includes a support structure, the support structure includes a top cover rear reinforcing rib for supporting the top cover, a top cover middle reinforcing rib and a top cover front reinforcing rib, and a side plate front reinforcing rib and a side plate rear reinforcing rib for supporting the side plates one and two.

[0013] Further, the top cover rear reinforcing rib is connected at the rear of the top cover, and the side plate rear reinforcing rib is connected at the rear of the side plates one and two.

[0014] The top cover rear reinforcing rib and the side plate rear reinforcing rib are welded into a cab rear end reinforcing ring through a connecting piece.

[0015] Further, the top cover middle reinforcing rib is connected at the middle of the top cover.

[0016] The top end of the gas spring mounting bracket is welded to the top cover middle reinforcing rib, and the bottom end is welded to the side plates one and two.

[0017] Further, the front face includes an integral mesh plate and a lampshade detachably connected to the integral mesh plate, the integral mesh plate includes a front mesh plate and side mesh plates one and two detachably connected to the left and right ends of the front mesh plate.

[0018] Further, it further includes a side plate connecting plate connected to the bottom of the front mesh plate, and the left and right ends of the side plate connecting plate are connected to the side plates one and two through screws, respectively.

[0019] Further, it further includes a cab front sealing ring, the cab front sealing ring includes a lower seal, a top seal connected to the top cover front reinforcing rib, and a side edge seal connected to the side plate front reinforcing rib.

[0020] The lower seal is arranged at the bottom of the side plate connecting plate, the side plate one and the side plate two.

[0021] Furthermore, the side mesh panel 1 is connected to the mesh panel fixing bracket welded on the front of the top cover and the mesh panel fixing bracket welded on the front of the side panel 2 by screws, and the side mesh panel 2 is connected to the mesh panel fixing bracket welded on the front of the top cover and the mesh panel fixing bracket welded on the front of the side panel 1 by screws;

[0022] The top end of the front mesh plate is connected to a mesh plate fixing bracket welded to the front of the top cover through screws.

[0023] Furthermore, the lampshade includes a middle fixing bracket, a left fixing bracket and a right fixing bracket, the left fixing bracket is connected to the connection between the side mesh panel 1 and the front mesh panel, and the right fixing bracket is connected to the connection between the side mesh panel 2 and the front mesh panel;

[0024] Two ends of the middle fixing bracket are connected to the left fixing bracket and the right fixing bracket respectively, and a middle protrusion of the middle fixing bracket is connected to the front mesh plate.

[0025] Furthermore, the top cover middle reinforcement rib or the top cover front reinforcement rib is also provided with an error-proofing feature.

[0026] Furthermore, the front portions of the side panel one and the side panel two are both pasted with side panel front mesh panels.

[0027] Furthermore, the rear portions of the side panels 1 and 2 are both pasted with side panel rear mesh panels, and the side panel rear mesh panels are connected to the side panels 1 and 2 via screws.

[0028] Furthermore, the cab further comprises a cab roof, and the cab roof is connected to the top of the left side panel assembly and the right side panel assembly;

[0029] The cab roof comprises a roof frame and an outer roof of the cab connected to the roof frame. A mounting structure groove for mounting a heater or an air conditioner is provided in the middle portion of the outer roof of the cab.

[0030] Furthermore, a sealing rubber sleeve is provided on the installation structure groove.

[0031] Furthermore, the top cover frame is provided with inner and outer top fixing brackets;

[0032] The inner and outer top fixing brackets of the roof frame have a first connecting surface and a second connecting surface. The first connecting surface is provided with an outer top fixing hole for connecting to the outer top of the cab, and the second connecting surface is provided with an inner top fixing hole for connecting to the inner top of the cab.

[0033] In a second aspect, the present invention further discloses a tractor design method, comprising:

[0034] The hood block form is determined according to the design requirements; wherein the hood includes a detachably connected hood body and a front face, and the hood body includes a top cover and side panels 1 and 2 welded to both sides of the top cover;

[0035] The cab structure is determined based on design requirements. The cab comprises a left side panel assembly and a right side panel assembly. The rear ends of the left and right side panels are each provided with a variable straight segment, which is connected to the variable straight segment of the left and right side panels. The front ends of the left and right side panels are connected by multiple front crossbeams, one of which has a fixed mounting segment in the middle for mounting the instrument panel.

[0036] According to the model of tractor, the corresponding type of hood and cab is configured.

[0037] According to the above technical scheme, the implementation cases of the present invention have at least the following effects: the hood designed in this application includes a hood body and a hood front face that can be detachably connected. By forming hood bodies and hood front faces of different sizes, it can match engines of different sizes; the cab adopts a six-column design concept, and cabs of different widths can be produced through variable straight sections at the rear ends of the left side panel assembly and the right side panel assembly. The fixed installation section designed on the front crossbeam can adapt to the installation of the instrument panel, so that the cab can adapt to different models of tractors; the hood and cab of this application can be configured on tractors of different models, realizing the universality of the hood and cab, and improving design efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 Design flow charts for series tractor hoods and cabs;

[0039] Figure 2 为系列拖拉机型谱;

[0040] Figure 3 为系列拖拉机机罩结构形式;

[0041] Figure 4 为系列拖拉机机罩各分块变化形式;

[0042] Figure 5 为系列拖拉机机罩内部结构形式;

[0043] Figure 6 It is a series of tractor hood blocks + internal structure combination;

[0044] Figure 7 为机罩的结构示意图;

[0045] Figure 8 为机罩顶盖的结构示意图;

[0046] Figure 9 为机罩旋转结构示意图;

[0047] Figure 10 为气弹簧前端固定连接结构放大图

[0048] Figure 11 为顶盖加强肋防错特征的示意图;

[0049] Figure 12 为机罩侧板结构示意图;

[0050] Figure 13 Schematic diagram of the installation structure section AA of the mesh panel at the front of the hood side panel;

[0051] Figure 14 This is a schematic diagram of the installation structure section BB of the mesh panel at the rear of the hood side panel;

[0052] Figure 15 This is a schematic diagram of the connection structure between the rear end top cover and the side panels of the hood;

[0053] Figure 16 为灯罩及网眼板安装结构示意图;

[0054] Figure 17 为灯安装结构的示意图;

[0055] Figure 18 for Figure 17 中CC截面的示意图;

[0056] Figure 19 为灯安装支架固定结构示意图;

[0057] Figure 20 为标识防错安装结构设计示意图;

[0058] Figure 21 This is a schematic diagram of different sizes of serialized tractor hoods;

[0059] Figure 22 为系列化驾驶室骨架结构示意图;

[0060] Figure 23 This is a schematic diagram of the universal modules and variable parts of the left and right side panels of the serialized cab frame;

[0061] Figure 24 为系列化驾驶室通用仪表的示意图;

[0062] Figure 25 A schematic diagram for matching the universal instrument interface of the serialized tractor cab;

[0063] Figure 26 Another schematic diagram for matching the universal instrument interface of the serialized tractor cab;

[0064] Figure 27 This is a schematic diagram of the cab roof structure of a series of tractors;

[0065] Figure 28 This is the outer top variable interface and its partial enlarged view;

[0066] Figure 29 It is an integral inner and outer top fixing bracket and its enlarged view;

[0067] Figure 30 Schematic diagram of the structure of the rear taillight;

[0068] Figure 31 This is a schematic diagram of the wheel cover taillight fixing structure;

[0069] Figure 32 Schematic diagram of the specific structure of the cab;

[0070] Figure 33 Schematic diagram of the structure of two series of tractor cab frames.

[0071] Among them: 1. Top cover; 1.2. Top mesh panel; 1.3. Ridge mark; 2. Side panel 1; 3. Side panel 2; 3.1. Side panel rear mesh panel; 3.2. Side panel front mesh panel; 3.3. Hood lock rod opening; 3.4. Screws; 4. Side mesh panel 1; 5. Side mesh panel 2; 6. Lampshade; 6.1. Brand logo; 6.2. Decorative bright strip; 6.3. Middle fixing bracket; 6.4. Left fixing bracket; 6.5. Right fixing bracket; 6.6. Connecting bracket; 7. Front mesh panel; 8. Side panel connecting plate; 8.1. Lower seal; 9. Top cover rear reinforcement rib; 10. Top cover middle reinforcement rib; 11. Top cover front reinforcement rib; 11.1. Top seal; 12. Side panel front Reinforcement ribs; 12.1. Reinforcement members; 12.2. Side seals; 13. Gas spring mounting bracket; 14. Reinforcement ribs at the rear of the side panel; 15. Hood rotation mounting structure; 16. Gas spring; 17. Connectors; 18. Left side panel assembly; 19. Front crossbeam; 19.1. Front crossbeam one; 19.2. Front crossbeam two; 19.21. Unchanged mounting section; 20. Right side panel assembly; 21. Rear crossbeam; 22. Lower connecting beam one; 23. Lower connecting beam two; 24. Instrument panel; 25. Cabin exterior roof; 25.1. Sealing rubber sleeve; 25.2. Mounting structure groove; 26. Inspection cover; 27. External roof fixing bracket; 27.1. External roof fixing hole; 27.2. Internal roof fixing hole. DETAILED DESCRIPTION

[0072] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0073] It should be noted that, in the description of the present invention, the terms "front," "rear," "left," "right," "up," "down," "inside," and "outside" and the like, indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. These are intended solely to facilitate the description of the present invention and do not require that the present invention be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. The terms "front," "rear," "left," "right," "up," and "down" used in the description of the present invention refer to directions in the accompanying drawings, and the terms "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0074] Example 1

[0075] like Figures 1 to 33 As shown, the present invention discloses a tractor with a serialized hood and cab, and the corresponding model of the hood and cab is configured according to the model of the tractor; the hood includes a hood body and a front face that are detachably connected, and the hood body includes a top cover 1 and side panels 1 2 and 3 welded to both sides of the top cover 1; the cab includes a left side panel assembly 18 and a right side panel assembly 20, and the rear ends of the left side panel assembly 18 and the right side panel assembly 20 are both provided with variable straight sections, and the variable straight sections of the left side panel assembly 18 and the variable straight sections of the right side panel assembly 20 are connected; the front ends of the left side panel assembly 18 and the right side panel assembly 20 are connected by multiple front cross beams 19, and the middle part of one of the front cross beams 19 is provided with fixed installation sections 19, 21 for installing an instrument panel 24.

[0076] The hood designed in this application includes a detachably connected hood body and a hood front face. By molding hood bodies and hood front faces of different sizes, it can match engines of different sizes; the cab adopts a pillar-form design concept, and cabs of different widths can be produced through variable straight sections at the rear ends of the left side panel assembly and the right side panel assembly. The fixed installation section designed on the front crossbeam can adapt to the installation of the instrument panel, so that the cab can adapt to different models of tractors; the hood and cab of this application can be configured on different models of tractors, realizing the universality of the hood and cab and improving design efficiency.

[0077] In one embodiment of the present application, the design and structure of the hood are as follows: Based on market research information, competitive benchmarking information and product market positioning, the hood structure block form is determined in combination with the tractor family modeling, such as Figure 3 As shown, the hood structure of the present invention is divided into a top cover 1, a side panel 1 2, a side panel 2 3, a side mesh panel 1 4, a side mesh panel 2 5, a lampshade 6, a front mesh panel 7, and a side panel connecting plate 8.

[0078] According to the system layout plan, combined with the changes in the peripheral parts of the hood of the series tractor, the size changes of each part of the hood are determined, such as Figure 4As shown, the main dimensional changes of the top cover 1 are width and length, the dimensional changes of side panels 1 2 and 2 3 are length and height, the dimensional changes of the front mesh panel 7 are height and width, and the dimensional changes of the side panel connecting panel 8 are width. Based on the dimensional changes of each component, a universal and modular structural design strategy for the hood was developed to guide the detailed design of the hood structure of specific models.

[0079] According to the functional requirements of the tractor hood, a preliminary hood structure plan is formulated. The hood needs to meet the tractor engine protection, maintenance functions (rotate to open), and air intake sealing functions. Based on the above tractor hood functional requirements, the hood back structure is designed as follows Figure 5 As shown, the hood top cover includes rear reinforcement ribs 9, and the hood rotation axis mounting structure 15 is welded to the top cover rear reinforcement ribs 9. The main function of the top cover rear reinforcement ribs 9 is to increase the structural strength of the hood top cover rear and ensure the strength and stability of the hood during the hood opening and rotation process.

[0080] It also includes a middle reinforcement rib 10 on the hood top cover, and a gas spring mounting bracket 13 for opening the hood is welded to the middle reinforcement rib 10 on the top cover. The main function of the middle reinforcement rib 10 on the top cover is to increase the strength of the middle part of the hood top cover and ensure the strength of the welding position of the gas spring mounting bracket 13.

[0081] The hood also includes front ribs 11, which primarily increase the strength of the front hood top cover and serve as a location for attaching the front hood sealing sponge. Side panel front ribs 12, which are the front ribs of side panels 1 and 2, 3, primarily increase the structural strength of the front hood side panels and provide mounting interfaces for the sealing strips on both sides of the front hood. Component 14, the rear hood side panel reinforcement ribs, primarily increase the structural strength of the rear hood side panels and, together with component 9, form the rear hood reinforcement ring, ensuring the overall structural strength of the rear end of the hood.

[0082] Figure 6 The various blocks and structural combinations of the hood are displayed, providing a structural basis for the detailed design of the hood structure of subsequent specific tractor models.

[0083] Figure 7 This is a detailed structural design scheme for the hood of a medium-horsepower tractor. The structure includes all the basic structural forms mentioned above, and adds specific detailed structures. The tractor ridge mark 1.3 is set at the center of the top surface of the top cover 1 to provide the driver with a centering reference. The mesh panel 1.2 on the top of the hood is set at the front of the top cover to increase the air intake area at the front of the hood and ensure the air intake and heat dissipation efficiency. The rear mesh panel 3.1 of the side panel is set at the rear end of the side panel to meet the side heat dissipation requirements; the front mesh panel 3.2 of the side panel is set at the front end of the side panel to increase the front air intake area; the hood lock rod opening 3.3 also serves as a fixing hole for the hood electrophoresis. In some embodiments, it also includes a brand logo 6.1 and a decorative bright strip 6.2.

[0084] Figure 8 The detailed structure of the hood top cover 1 is shown in FIG. The top cover rear reinforcement rib 9, the top cover middle reinforcement rib 10 and the top cover front reinforcement rib 11 are fixed by welding + gluing. Figure 9 The middle hood rotating shaft mounting structure 15 is welded and fixed to the reinforcement rib 9 at the rear of the top cover; Figure 10 The mounting bracket 13 for the central hood opening gas spring is welded to the central reinforcement rib 10 of the top cover. The central reinforcement rib 10 of the top cover is designed with double mounting holes. The fixing holes can be replaced according to the actual installation status to facilitate gas spring adjustment. The central reinforcement rib 10 of the top cover and the front reinforcement rib 11 of the top cover have similar structures and have different installation direction requirements. Figure 11 As shown, the top cover middle reinforcement rib 10 is added with error-proofing features 10.1, such as a central circular groove and different forms of glue grooves on both sides for distinguishing the top cover middle reinforcement rib 10 of the component; Figure 11 The correct orientation of the parts, with the adhesive groove pointing toward the front of the vehicle, facilitates identification and prevents incorrect assembly. The anti-error feature 10.1 and the angled adhesive groove design allow for quick installation of the top cover center reinforcement rib 10 and the top cover front reinforcement rib 11.

[0085] Figure 12 The hood is a structure that matches the top cover and the side panels. The top cover and the side panels are welded together by flanging the edges of the matching positions. The rear of the hood is welded to the top cover rear reinforcement rib 9 and the side panel rear reinforcement rib 14 through the connector 17 (see the detailed diagram). Figure 15 ), a reinforcement ring is formed at the rear end of the hood to ensure the strength of the rear end of the hood.

[0086] Specifically, connector 17 comprises an integrally formed upper and lower connecting portion, with connecting plates on either side. During connection, the top cover 1 is aligned with the flanges of the side panels, and the flanges are weakened at the joint to ensure secure installation of connector 17. The upper connecting portion is welded to the top cover's rear reinforcement rib 9, and the lower connecting portion is welded to the side panel reinforcement rib 14, achieving a complete connection.

[0087] The upper end of the gas spring mounting bracket 13 is welded to the middle reinforcement rib 10 of the top cover, and the lower end is welded to the side plate of the hood to strengthen the connection strength between the two parts. The hood top seal 11.1 is pasted on the front reinforcement rib 11 of the top cover and the hood side seal 12.2 and the lower sealing strip 8.1 (see Figure 7 ) form the front hood sealing ring to ensure the front hood sealing performance. Top seal 11.1 adopts a sealing sponge design, and side seal 12.2 can be in the form of a sealing strip.

[0088] The reinforcement 12.1 is a reinforcement for the front rib 12 of the hood side panel, which strengthens the sealing strip installation flange rigidity, avoids deformation, and ensures the sealing effect of the sealing strip. The front mesh panel 3.2 of the hood side panel is fixed to the side panel through the gluing process, eliminating the mounting bracket and simplifying the fixing structure. The matching structure is shown in Figure 13 The rear mesh panel 3.1 of the hood side panel is fixed by gluing and screws 3.4, simplifying the fixing structure. The screws 3.4 ensure that the mesh panel fits the hood side panel. See the structural form for details. Figure 14 .

[0089] like Figure 16 The front face of the hood is composed of the side mesh panel 1 4, the side mesh panel 2 5, the lampshade 6 and the front mesh panel 7. The side mesh panel 1 4, the side mesh panel 2 5 and the front mesh panel 7 are connected and fixed by screws to form an integral mesh panel. The lampshade 6 is also fixed to the assembly by screws to form an integral body. The integral body is welded to the fixing brackets on the hood side panel 1 2, the side panel 2 3 and the top cover 1 ( Figure 12 、 Figure 17 ) is fixed to the hood with screws. Specifically, side mesh panel 1 (4) is connected to the mesh panel fixing bracket welded to the front of top cover (1) and the mesh panel fixing bracket welded to the front of side panel 2 (3) via screws. Side mesh panel 2 (5) is connected to the mesh panel fixing bracket welded to the front of top cover (1) and the mesh panel fixing bracket welded to the front of side panel 1 (2) via screws. The top end of front mesh panel 7 is connected to the mesh panel fixing bracket welded to the front of top cover (1) via screws.

[0090] Figure 17 The left and right fixing brackets 6.4 and 6.5 are fixed to the connection position of the side mesh panel 1 4 and the side mesh panel 2 5 and the front mesh panel 7, serving as the fixing structure of the middle fixing bracket 6.3 of the lens headlight. The middle fixing bracket 6.3 is fixed to the front mesh panel 7 at the middle position through the connecting bracket 6.6. Figure 19 The middle fixed bracket 6.3, the left fixed bracket 6.4 and the right fixed bracket 6.5 form a "W" structure. This structural form can effectively enhance the overall strength and ensure the stability of the lens headlight fixed on the middle fixed bracket 6.3.

[0091] In some embodiments, the brand logo 6.1 (the mounting surface is a curved surface) is composed of three similar trapezoidal blocks. Since the three parts are not interchangeable but have similar shapes and are easily misinstalled, the present invention has designed an anti-misinstallation structure. Each module is designed with a mounting structure of a different shape and matching mounting holes to ensure the independence of each structure, completely avoid misinstallation, and improve assembly efficiency.

[0092] The series tractor design method is used, according to the planned hood structure form, after completing a hood design, other model hoods of the series tractor can be quickly designed according to the hood structure scheme, and the design efficiency is improved.The invention shows the design structure of the medium-power tractor hood in detail, and another small-power tractor hood is completed based on the structure, Figure 21 For the comparison of the two tractor hoods.

[0093] The cab structure and design process of the invention are as follows: similarly, based on market research information, competitor benchmarking information and product market positioning, the invention determines the structure form of the series tractor cab as a six-column form and performs module division, as shown in Figure 22 , including a left side wall assembly 18, a right side wall assembly 20, a front cross beam 19, a rear cross beam 21, a lower side connecting beam one 22 and a lower side connecting beam two 23.

[0094] Based on the previous series tractor arrangement scheme, the functional requirements and change forms of the cab of each platform tractor are determined, and a cab modularization generalization strategy is developed. Figure 23 The cab skeleton modularization strategy of the invention is shown, the cab left side wall assembly 18 and the cab right side wall assembly 20 are used as series cab skeleton general modules, the door interface and the side wall mounting interface remain unchanged, so that the cab left and right side wall interfaces are consistent, and the different platform cab skeleton bending pipe mold, welding tooling and cab door, side window and other components are all general.

[0095] As shown in Figure 23 , the change between different platforms of the cab is the width direction change, the cab skeleton left side wall assembly 18 and the right side wall assembly 20 are provided with variable parts at the rear to adapt to the width change of the cab, the variable part is designed as a straight section, the length change of this part does not affect the bending pipe mold, welding tooling and clamp, only the length of the profile needs to be changed, so as to ensure the consistency of the related interfaces and realize the generalization.

[0096] The front cross beam one 19.1 and the front cross beam two 19.2 are the front cross beams of the cab, the front cross beam one 19.1 is connected to the upper part of the front end of the left side wall assembly 18 and the right side wall assembly 20, the front cross beam two 19.2 is connected to the lower part of the middle of the front end of the left side wall assembly 18 and the right side wall assembly 20, and the length needs to be adjusted according to the width change of the cab skeleton, in order to ensure the generalization of the instrument desk interface, the unchanged installation section 19.21 of the front cross beam 19.2 is designed, that is, the width direction change of the front cross beam 19.2 keeps the area unchanged, reducing the influence of the width change of the cross beam on the instrument desk.

[0097] Based on the generalization requirement, the invention designs a general instrument desk for the cab, which can match different configuration requirements. Figure 24-26As shown in the figure, the same platform tractor is available in two configurations: a cab and a convertible. The instrument panel in the cab configuration has a rectangular crossbeam, while the instrument panel in the convertible configuration has a round crossbeam, resulting in inconsistent matching interfaces. To ensure universal instrument panels and reduce mold investment, two interface inserts were designed into the instrument panel injection mold, allowing the production of both interface instrument panels using one mold.

[0098] Figure 27 The middle part 25 is the outer roof of the cab. Due to the change in cab width, in order to ensure the consistency and versatility of the outer roof structure, the outer roof structure is designed to ensure that the middle part has the same structure, and the width of the two sides varies to adapt to the change in cab width. Figure 27 As shown, according to different configurations, a universal installation structure is designed in the middle of the outer top, which can match the two configurations of air conditioner and heater. The structural dimensions here remain unchanged, realizing the universality of the inspection cover 26. Figure 28 In order to match the two states of air conditioning and no air conditioning, an air conditioning pipe sealing sleeve 25.1 is designed. At the same time, an insert is designed at this point in the outer top mold so that the structure here matches the pipe sealing sleeve, ensuring the sealing effect of the inspection cover 26 after installation at the pipe under the air conditioning state; when there is no air conditioning, the mold here is replaced with another insert, and the product has no matching notch, which also ensures the sealing effect of the inspection cover 26 after installation, thus achieving the matching of the two configuration structures.

[0099] Figure 29 The inner and outer roofs share an integrated fixing bracket, which allows the two components to be shared, reducing the number of brackets and improving manufacturing efficiency. Specifically, the cab also includes a cab roof, which is connected to the top of the left side panel assembly 18 and the right side panel assembly 20. The cab roof includes a roof frame and an outer cab roof 25 connected to the roof frame. The middle portion of the outer cab roof 25 is provided with a mounting structure slot 25.2 for mounting a heater or air conditioner. The roof frame is provided with inner and outer roof fixing brackets 27. The inner and outer roof fixing brackets 27 have a first connecting surface and a second connecting surface. The first connecting surface is provided with an outer roof fixing hole 27.1 for connecting to the outer cab roof 25, and the second connecting surface is provided with an inner roof fixing hole 27.2 for connecting to the inner cab roof.

[0100] Figure 30 and Figure 31 It is a wheel cover structure. The wheel cover adopts SMC technology. The installation direction of the taillight on the wheel cover is inconsistent with the demolding direction of the wheel cover. The wheel cover itself cannot be designed with an assembly structure. The present invention solves the problem of the taillight installation structure design by adding a sheet metal bracket, fixing the bracket to the wheel cover through the BOSS column structure, and fixing the taillight on the sheet metal bracket, thereby simplifying the wheel cover structure.

[0101] Figure 32The final cab design is frozen, and the universal design of the frame side panels, doors, windows, instrument panel and some accessories is achieved.

[0102] This invention shows in detail the design method and structural design of serialized tractor cabs. After completing the design of one cab, the structural design of another platform tractor cab is completed based on the cab structure, achieving the goal of universalization and improving design efficiency. Figure 33 Shown are the skeleton structures of the cabs of two platforms.

[0103] Example 2

[0104] The present invention also discloses a tractor design method, comprising the following steps: determining a hood of a block structure according to design requirements; wherein the hood includes a detachably connected hood body and a front face, the hood body including a top cover 1 and side panels 1 2 and 2 3 welded to both sides of the top cover 1; determining a pillar-type cab according to design requirements; wherein the cab includes a left side panel assembly 18 and a right side panel assembly 20, the rear ends of the left side panel assembly 18 and the right side panel assembly 20 are both provided with variable straight sections, and the variable straight sections of the left side panel assembly 18 and the variable straight sections of the right side panel assembly 20 are connected; the front ends of the left side panel assembly 18 and the right side panel assembly 20 are connected by multiple front cross beams 19, and the middle part of one of the front cross beams 19 is provided with fixed installation sections 19, 21 for installing an instrument panel 24; and configuring a hood and cab of corresponding models according to the model of the tractor.

[0105] The tractor in Example 1 can be designed through this design.

[0106] It is understood from common technical knowledge that the present invention may be implemented by other embodiments that do not depart from its spirit or essential features. Therefore, the embodiments disclosed above are, in all respects, merely illustrative and not exclusive. All modifications within the scope of the present invention or equivalent to the scope of the present invention are intended to be encompassed by the present invention.

Claims

1. A tractor with a serialized hood and cab, characterized in that: Configure the corresponding hood and cab according to the tractor model; The hood comprises a detachably connected hood body and a front face, wherein the hood body comprises a top cover (1) and a first side panel (2) and a second side panel (3) welded to both sides of the top cover (1); The cab comprises a left side panel assembly (18) and a right side panel assembly (20), wherein the rear ends of the left side panel assembly (18) and the right side panel assembly (20) are both provided with a variable straight section, and the variable straight section of the left side panel assembly (18) and the variable straight section of the right side panel assembly (20) are connected; the front ends of the left side panel assembly (18) and the right side panel assembly (20) are connected by a plurality of front cross beams (19), wherein the middle portion of one of the front cross beams (19) is provided with a fixed mounting section (19, 21) for mounting an instrument panel (24).

2. The tractor with a serialized hood and cab according to claim 1, characterized in that: The hood further comprises a supporting structure, wherein the supporting structure comprises a top cover rear reinforcement rib (9), a top cover middle reinforcement rib (10) and a top cover front reinforcement rib (11) for supporting the top cover (1), and a side panel front reinforcement rib (12) and a side panel rear reinforcement rib (14) for supporting the side panel 1 (2) and the side panel 2 (3).

3. The tractor with a serialized hood and cab according to claim 2, characterized in that: The top cover rear reinforcement rib (9) is connected to the rear of the top cover (1), and the side panel rear reinforcement rib (14) is connected to the rear of the side panel 1 (2) and the side panel 2 (3); The top cover rear reinforcement rib (9) and the side plate rear reinforcement rib (14) are welded via a connecting piece (17) to form a hood rear end reinforcement ring.

4. The tractor with a serialized hood and cab according to claim 2, characterized in that: The top cover middle reinforcement rib (10) is connected to the middle of the top cover (1); The top end of the gas spring mounting bracket (13) is welded to the middle reinforcing rib (10) of the top cover, and the bottom end is welded to the side plate 1 (2) and the side plate 2 (3).

5. The tractor with a serialized hood and cab according to claim 2, characterized in that: The front face comprises an integral mesh panel and a lampshade (6) detachably connected to the integral mesh panel, and the integral mesh panel comprises a front mesh panel (7) and a side mesh panel 1 (4) and a side mesh panel 2 (5) detachably connected to the left and right ends of the front mesh panel (7).

6. The tractor with a serialized hood and cab according to claim 5, characterized in that: It also includes a side panel connecting plate (8) connected to the bottom of the front mesh panel (7), and the left and right ends of the side panel connecting plate (8) are connected to the side panel 1 (2) and the side panel 2 (3) respectively through screws.

7. The tractor with a serialized hood and cab according to claim 6, characterized in that: The hood front sealing ring includes a lower seal (8.1), a top seal (11.1) connected to the top cover front reinforcement rib (11), and a side seal (12.2) connected to the side plate front reinforcement rib (12); The lower seal (8.1) is arranged at the bottom of the side plate connecting plate (8), the side plate one (2) and the side plate two (3).

8. The tractor with a serialized hood and cab according to claim 5, characterized in that: The side mesh panel 1 (4) is connected to the mesh panel fixing bracket welded at the front of the top cover (1) and the mesh panel fixing bracket welded at the front of the side panel 2 (3) by screws, and the side mesh panel 2 (5) is connected to the mesh panel fixing bracket welded at the front of the top cover (1) and the mesh panel fixing bracket welded at the front of the side panel 1 (2) by screws; The top end of the front mesh plate (7) is connected to a mesh plate fixing bracket welded to the front of the top cover (1) via screws.

9. The tractor with a serialized hood and cab according to claim 5, characterized in that: The lampshade (6) comprises a middle fixing bracket (6.3), a left fixing bracket (6.4) and a right fixing bracket (6.5), wherein the left fixing bracket (6.4) is connected to the connection between the side mesh panel 1 (4) and the front mesh panel (7), and the right fixing bracket (6.5) is connected to the connection between the side mesh panel 2 (5) and the front mesh panel (7); The two ends of the middle fixing bracket (6.3) are respectively connected to the left fixing bracket (6.4) and the right fixing bracket (6.5), and the middle protrusion of the middle fixing bracket (6.3) is connected to the front mesh plate (7).

10. The tractor with a serialized hood and cab according to claim 2, characterized in that: The top cover middle reinforcement rib (10) or the top cover front reinforcement rib (11) is also provided with an error-proofing feature (10.1).

11. The tractor with a serialized hood and cab according to claim 1, characterized in that: The front parts of the side panel one (2) and the side panel two (3) are both adhered with a side panel front mesh panel (3.2).

12. The tractor with a serialized hood and cab according to claim 1, characterized in that: The rear parts of the side panel one (2) and the side panel two (3) are both pasted with side panel rear mesh panels (3.1), and the side panel rear mesh panels (3.1) are connected to the side panel one (2) and the side panel two (3) by screws.

13. The tractor with a serialized hood and cab according to claim 1, characterized in that: The cab further includes a cab roof, which is connected to the top of the left side panel assembly (18) and the right side panel assembly (20); The cab roof comprises a roof frame and a cab outer roof (25) connected to the roof frame. A mounting structure groove (25.2) for mounting a heater or an air conditioner is provided in the middle portion of the cab outer roof (25).

14. The tractor with a serialized hood and cab according to claim 13, characterized in that: A sealing rubber sleeve (25.1) is provided on the installation structure groove.

15. The tractor with a serialized hood and cab according to claim 13, characterized in that: The top cover frame is provided with inner and outer top fixing brackets (27); The inner and outer top fixing brackets (27) of the roof frame have a first connecting surface and a second connecting surface, wherein the first connecting surface is provided with an outer top fixing hole (27.1) for connecting to the outer top (25) of the cab, and the second connecting surface is provided with an inner top fixing hole (27.2) for connecting to the inner top of the cab.

16. A tractor design method, characterized in that: include: The hood block form is determined according to the design requirements; wherein the hood comprises a hood body and a front face that are detachably connected, and the hood body comprises a top cover (1) and a side panel 1 (2) and a side panel 2 (3) welded to both sides of the top cover (1); The cab structure is determined according to the design requirements; wherein the cab comprises a left side panel assembly (18) and a right side panel assembly (20); the rear ends of the left side panel assembly (18) and the right side panel assembly (20) are both provided with a variable straight section, and the variable straight section of the left side panel assembly (18) and the variable straight section of the right side panel assembly (20) are connected; the front ends of the left side panel assembly (18) and the right side panel assembly (20) are connected by a plurality of front cross beams (19), and a fixed installation section (19, 21) for installing an instrument panel (24) is provided in the middle portion of one of the front cross beams (19); According to the model of tractor, the corresponding type of hood and cab is configured.

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