A cotton picker engine support device, cotton picker frame device and cotton picker
Patent Information
- Application Number
- CN202522416078.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-14
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-11-14
AI Technical Summary
[0004]然而,这种结构由于采用折弯板件焊接成型,整体结构笨重,且框架四周的立柱结构尺寸大,导致内部空间小,不便于人员进入内部对发动机进行维护等
[0031]利用支撑件安装发动机,对发动机起到支撑作用,利用拉杆起到连接采棉机发动机支撑装置与车架体的作用,也即,通过拉杆使采棉机发动机支撑装置悬吊于车架体下方,由于拉杆为杆状件,其结构简单,相比于采用折弯板件焊接成型的一体式框架来说,拉杆作为支撑件与车架体之间的连接结构,可减小占位空间,有利于增加支撑件与车架体之间用于安装发动机的内部空间,方便人员进出内部空间,便于实现对发动机维护;且整体结构简单,相比于折弯板件焊接结构来说,简化了结构,有利于减轻重量;另外,拉杆的一端与支撑件之间铰接,且拉杆的另一端用于与车架体铰接,使得拉杆分别与支撑件和车架体的相对位置较灵活,有利于弥补安装位置的加工误差,方便安装等。
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Figure CN224898534U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of cotton harvester component structure, and more specifically, to a cotton harvester engine support device, a cotton harvester frame device, and a cotton harvester. Background Technology
[0002] With the development of agricultural machinery, cotton harvesters are being used more and more widely. As a key structural component of cotton harvesters, the engine support device plays an important role. The engine support device is mainly used to install the engine, providing installation space and support for the engine, and also needs to meet the requirements for engine maintenance.
[0003] The engine support device in the related technology is an integral frame formed by welding bent plates and is bolted to the lower part of the vehicle frame.
[0004] However, this structure is bulky due to the use of bent plates welded together, and the large size of the columns around the frame results in a small internal space, making it inconvenient for personnel to enter the interior to maintain the engine.
[0005] Therefore, how to simplify the structure of the engine support device of the cotton harvester and facilitate engine maintenance is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0006] In view of this, the purpose of this utility model is to provide a cotton harvester engine support device, which has a simple structure and is easy to maintain the engine.
[0007] Another objective of this invention is to provide a cotton harvester frame device that includes the aforementioned cotton harvester engine support device, which has a simple structure and facilitates engine maintenance.
[0008] Another objective of this utility model is to provide a cotton harvester including the above-mentioned cotton harvester frame device, wherein the cotton harvester frame device has a simple structure and is easy to maintain the engine.
[0009] To achieve the above objectives, this utility model provides the following technical solution:
[0010] A cotton harvester engine support device, comprising:
[0011] The support member is provided with a mounting part, which is used to mount the engine;
[0012] At least three tie rods, one end of which is hinged to the support member and the other end of which is hinged to the vehicle frame. The at least three tie rods are arranged non-collinearly so that the cotton harvester engine support device is connected to the vehicle frame through all the tie rods.
[0013] Optionally, all the tie rods are divided into three types: a first tie rod, a second tie rod, and a third tie rod. The first tie rod is used to connect to the bottom of the vehicle frame, the second tie rod is used to connect to the front axle bracket of the vehicle frame, and the third tie rod is used to connect to the rear axle bracket of the vehicle frame.
[0014] Optionally, the length of the third pull rod is adjustable; and / or,
[0015] The tie rod is connected to the support member via a first round-headed pin, and the tie rod is provided with a second round-headed pin for connection to the vehicle frame; and / or
[0016] The support member is a planar frame structure welded from steel parts, and the mounting part is a first ear plate provided on the support member.
[0017] A cotton harvester frame assembly includes a frame body and any of the aforementioned cotton harvester engine support devices, wherein the tie rod of the cotton harvester engine support device is connected to the frame body.
[0018] Optionally, foldable support platforms are provided on both sides of the vehicle frame in the width direction.
[0019] Optionally, the support platform includes:
[0020] The platform panel is hinged to the vehicle frame at one end and has a horizontal and a folded-over state.
[0021] The guardrail is hinged to the end of the platform panel away from the vehicle frame via a guardrail limiting seat;
[0022] The connecting rod is hinged to the railing limiting seat and the vehicle frame body, respectively.
[0023] The vehicle frame, the platform panel, the railing limit seat, and the connecting rod form a four-bar linkage mechanism. When the platform panel switches between the horizontal state and the folded state, the guardrail is always in a vertical state.
[0024] Optionally, the support platform further includes:
[0025] A telescopic drive device, with its two ends hinged to the vehicle frame and the platform panel respectively, is used to drive the platform panel to switch between the horizontal state and the folded state.
[0026] Optionally, the support platform on one side of the vehicle frame includes three platform panels arranged side by side, with the middle platform panel connected to the two edge platform panels respectively, and the telescopic drive device provided between each of the two edge platform panels and the vehicle frame.
[0027] Optionally, the telescopic drive device includes hydraulic cylinders, and the hydraulic cylinders connected to two platform panels on the same side and located at the edge are connected by a balance valve to synchronize the operation of the two hydraulic cylinders connected to the two platform panels on the same side and located at the edge; and / or,
[0028] At least one of the platform panels is connected to a ladder, which is foldable under the platform panel.
[0029] A cotton harvester, comprising any of the above-mentioned cotton harvester frame devices.
[0030] The cotton harvester engine support device provided by this utility model has at least the following beneficial effects:
[0031] The engine is mounted using a support structure, which provides support for the engine. A tie rod connects the engine support to the frame, suspending the engine support beneath the frame. Because the tie rod is a rod-shaped component, its structure is simple. Compared to a one-piece frame made of bent and welded plates, the tie rod, as the connection structure between the support and the frame, reduces the space occupied, increasing the internal space for engine installation and facilitating personnel access and maintenance. Furthermore, the overall structure is simpler than a welded bent plate structure, reducing weight. Additionally, one end of the tie rod is hinged to the support, and the other end is hinged to the frame, allowing for flexible relative positioning of the tie rod with respect to both the support and the frame. This helps compensate for machining errors during installation and facilitates installation.
[0032] The cotton harvester frame device provided by this utility model includes the aforementioned cotton harvester engine support device, and at least includes the beneficial effects of the aforementioned cotton harvester engine support device.
[0033] The cotton harvester provided by this utility model includes the above-mentioned cotton harvester frame device, and at least includes the beneficial effects of the above-mentioned cotton harvester frame device. Attached Figure Description
[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0035] Figure 1 This is a schematic diagram of the structure of the cotton harvester engine support device after the engine is installed, provided in a specific embodiment of the present utility model;
[0036] Figure 2 This is a schematic diagram of the structure of a cotton harvester frame device provided in a specific embodiment of the present invention;
[0037] Figure 3 for Figure 2 Another structural diagram from another perspective;
[0038] Figure 4 This is a schematic diagram of the structure of a cotton harvester frame device provided in another specific embodiment of the present invention;
[0039] Figure 5 This is a partial schematic diagram of the platform panel after it has been folded.
[0040] Figure label:
[0041] 11-Support component; 111-Mounting part; 12-Tie rod; 121-First tie rod; 122-Second tie rod; 123-Third tie rod; 13-First round-head pin; 14-Second round-head pin; 2-Chassis body; 21-Front axle bracket; 22-Rear axle bracket; 31-Platform panel; 32-Guardrail; 33-Guardrail limit seat; 34-Connecting rod; 35-Hydraulic cylinder; 36-Ladder; 37-Connecting pin; 4-Engine. Detailed Implementation
[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0043] The core of this utility model is to provide a cotton harvester engine support device, which has a simple structure and is easy to maintain. Another core aspect of this utility model is to provide a cotton harvester frame device including the aforementioned cotton harvester engine support device, which has a simple structure and is easy to maintain. A further core aspect of this utility model is to provide a cotton harvester including the aforementioned cotton harvester frame device, whose frame device has a simple structure and is easy to maintain.
[0044] Please refer to Figure 1 , Figure 2 and Figure 3 This utility model provides a cotton harvester engine support device, including a support member 11 and at least three tie rods 12. The support member 11 is provided with a mounting part 111 for mounting an engine 4. One end of the tie rod 12 is hinged to the support member 11, and the other end is hinged to the frame body 2. The at least three tie rods 12 are not collinearly arranged so that the cotton harvester engine support device is connected to the frame body 2 through all the tie rods 12.
[0045] In other words, in this embodiment of the utility model, the engine 4 is mounted using the support member 11, which provides support for the engine 4. The tie rod 12 connects the cotton harvester engine support device to the frame body 2. That is, the cotton harvester engine support device is suspended below the frame body 2 by the tie rod 12. Since the tie rod 12 is a rod-shaped member, its structure is simple. Compared with an integrated frame formed by welding bent plates, the tie rod 12, as the connection structure between the support member 11 and the frame body 2, can reduce the space occupied and increase the internal space between the support member 11 and the frame body 2 for mounting the engine 4. This facilitates personnel access to the internal space and makes it easier to maintain the engine 4. Moreover, the overall structure is simple. Compared with the welded structure of bent plates, it simplifies the structure and helps to reduce weight. In addition, one end of the tie rod 12 is hinged to the support member 11, and the other end of the tie rod 12 is hinged to the frame body 2. This makes the relative position of the tie rod 12 with the support member 11 and the frame body 2 more flexible, which helps to compensate for processing errors in the installation position and facilitates installation.
[0046] It is understandable that at least three tie rods 12 are not collinear to utilize all tie rods 12 to connect the cotton harvester engine support device to the frame body 2. It should be noted that with all tie rods 12 connected, the connection between the cotton harvester engine support device and the frame body 2 can have a certain amount of flexibility, or it can be fixed to the frame body 2 by the common limiting action of multiple tie rods 12.
[0047] Furthermore, in order to improve the reliability and stability of the connection between the cotton harvester engine support device and the frame body 2, in some embodiments, all tie rods 12 are divided into three types: a first tie rod 121, a second tie rod 122, and a third tie rod 123. The first tie rod 121 is used to connect to the bottom of the frame body 2, the second tie rod 122 is used to connect to the front axle bracket 21 of the frame body 2, and the third tie rod 123 is used to connect to the rear axle bracket 22 of the frame body 2.
[0048] In other words, this embodiment utilizes three types of tie rods 12 (first tie rod 121, second tie rod 122, and third tie rod 123) to connect the cotton harvester engine support device to different parts of the frame 2, thereby achieving multi-point distributed connection between the cotton harvester engine support device and the frame 2, and improving the reliability and stability of the connection between the cotton harvester engine support device and the frame 2. This embodiment does not limit the number or distribution of the first tie rod 121, second tie rod 122, and third tie rod 123. For example, there are four first tie rods 121, arranged in a rectangular or square shape. That is, the cotton harvester engine support device is connected to the bottom of the frame 2 through four first tie rods 121. It can be understood that after the cotton harvester engine support device is connected to the frame 2, the first tie rods 121 are in a vertical state. Furthermore, there can be two second tie rods 122, arranged in parallel. That is, the cotton harvester engine support device is connected to the front axle bracket 21 of the frame 2 via two second tie rods 122. In some embodiments, after the cotton harvester engine support device is connected to the frame 2, the second tie rods 122 are in a horizontal state. Additionally, there can be one third tie rod 123, meaning the cotton harvester engine support device is connected to the rear axle bracket 22 of the frame 2 via a third tie rod 123. Exemplarily, after the cotton harvester engine support device is connected to the frame 2, the third tie rod 123 is in an inclined state.
[0049] Additionally, in some embodiments, the length of the third lever 123 is adjustable.
[0050] In other words, this embodiment allows for the smooth connection of each tie rod 12 to the frame 2 by adjusting the length of the third tie rod 123. Simultaneously, adjusting the third tie rod 123 to a suitable length ensures stable fixation between the cotton harvester engine support device and the frame 2. For example, the third tie rod 123 is an adjustable-length double-threaded tie rod 12. When the third tie rod 123 is tightened, a stable connection is formed between the cotton harvester engine support device and the frame 2, thus fixing the cotton harvester engine support device to the frame 2.
[0051] In addition, the above embodiments do not limit the specific hinge connection method between the tie rod 12 and the support member 11 and the vehicle frame 2, as long as the tie rod 12 can be hinged to the support member 11 and the vehicle frame 2 respectively.
[0052] In some embodiments, the tie rod 12 is connected to the support member 11 via a first round-headed pin 13, and the tie rod 12 is provided with a second round-headed pin 14 for connection to the vehicle frame 2.
[0053] This connection structure is simple and avoids connecting the cotton harvester engine support device to the frame body 2 with bolts. In related technologies, the integrated frame formed by welding bent plates is installed on the lower part of the frame body 2 with bolts, which is prone to resonance, and has high noise and low strength. In this embodiment, the first round-headed pin 13 is used to hinge the tie rod 12 to the support member 11 and the frame body 2 respectively, which can avoid resonance and buffer the bumps on the road surface, reducing working noise.
[0054] In addition, the above embodiments do not limit the specific structure of the support member 11, as long as it can enable the installation of the engine 4.
[0055] In some embodiments, the support member 11 is a planar frame structure welded from steel parts, and the mounting part 111 is a first ear plate provided on the support member 11. Exemplarily, the steel parts can be rectangular steel or other structural steel.
[0056] In other words, this embodiment uses a planar frame structure welded from steel components to support the engine 4. It is understood that the first lug plate is located on the upper surface of the planar frame structure to fix the engine 4. Exemplarily, the engine 4 is fixed to the first lug plate by fasteners. It is understood that the bottom of the planar frame structure is relatively flat, with a large ground clearance, making it less prone to snagging foreign objects and improving the overall passability of the cotton harvester.
[0057] In addition, it is understandable that, in order to facilitate the connection between the pull rod 12 and the support member 11, a second ear plate can be provided on the support member 11 for connecting one end of the pull rod 12.
[0058] like Figure 2 and Figure 3 As shown, in addition to the above-mentioned cotton harvester engine support device, this utility model also provides a cotton harvester frame device including the cotton harvester engine support device disclosed in the above embodiments. The cotton harvester frame device also includes a frame body 2, and the tie rod 12 of the cotton harvester engine support device mentioned above is connected to the frame body 2.
[0059] It should be noted that the focus of this embodiment is that the cotton harvester frame device adopts the cotton harvester engine support device disclosed in any of the above embodiments, and at least includes the beneficial effects of the above cotton harvester engine support device, which will not be repeated here.
[0060] Furthermore, in order to facilitate personnel to climb onto the frame 2 for harvesting operations and equipment maintenance, in some embodiments, foldable support platforms are provided on both sides of the frame 2 in the width direction.
[0061] Understandably, when in use, the support platform unfolds and lies flat for personnel to step on, which facilitates harvesting operations and equipment maintenance. When not in use, such as when loading and transporting cotton harvesters, the support platform can be folded to reduce the width of the vehicle frame, thus preventing the cotton harvester from exceeding the width limit and violating road regulations. This also avoids disassembling the support platform during transportation, making it convenient to use.
[0062] It should be noted that this embodiment does not limit the specific structure of the support platform to achieve folding, as long as the support platform can be folded or unfolded.
[0063] Please refer to Figure 4 and Figure 5 In some embodiments, the support platform includes a platform panel 31, a guardrail 32, and a connecting rod 34. One end of the platform panel 31 is hinged to the vehicle frame 2, and the end of the platform panel 31 away from the vehicle frame 2 is hinged to the guardrail 32 through a railing limit seat 33. The platform panel 31 has a horizontal state and a folded state. The connecting rod 34 is hinged to the railing limit seat 33 and the vehicle frame 2 respectively. The vehicle frame 2, the platform panel 31, the railing limit seat 33, and the connecting rod 34 form a four-bar linkage mechanism. When the platform panel 31 switches between the horizontal state and the folded state, the guardrail 32 is always in a vertical state.
[0064] Understandably, when an external force is applied to the platform panel 31, it can change from an unfolded state to a folded state. During this process, since the frame 2, platform panel 31, railing limit seat 33, and connecting rod 34 form a four-bar linkage, the connection between these components allows the connecting rod 34 to rotate relative to the railing limit seat 33 and the frame 2, ensuring the guardrail 32 remains vertical and preventing interference between the guardrail and other structures on the frame 2. Conversely, when an opposite external force is applied to the platform panel 31, it can change from a folded state to an unfolded state. During this process, the connecting rod 34 rotates relative to the railing limit seat 33 and the frame 2, ensuring the guardrail 32 remains vertical, thus facilitating its protective function.
[0065] It should be noted that this embodiment does not limit the specific structure between the frame body 2, platform panel 31, railing limit seat 33, and connecting rod 34. For example, the platform panel 31 is hinged to the frame body 2 via a hinge seat and a hinge. The guardrail 32 is connected to the railing limit seat 33 via fasteners. The railing limit seat 33 is mounted to the platform panel 31 via a first pin. The railing limit seat 33 is connected to the connecting rod 34 via a second pin. The end of the connecting rod 34 away from the railing limit seat 33 is connected to the frame body 2 via a third pin. Alternatively, railing limit seats 33 can be installed at both ends of the platform panel 31. Correspondingly, the two railing limit seats 33 are connected to the two connecting rods 34, so that a single platform panel 31 forms two sets of four-bar linkages, thereby improving the smoothness and reliability of the platform panel 31 when switching between folded and unfolded states.
[0066] In addition, this embodiment does not limit the specific driving method for folding or unfolding the platform panel 31. For example, the platform panel 31 can be folded or unfolded by human force by applying external force to it.
[0067] To save manpower and improve the ease of folding or unfolding the platform panel 31, in some embodiments, the support platform also includes a telescopic drive device. The two ends of the telescopic drive device are respectively hinged to the frame body 2 and the platform panel 31. The telescopic drive device is used to drive the platform panel 31 to switch between a horizontal state and a folded state.
[0068] In other words, this embodiment applies a driving force to the platform panel 31 through a telescopic drive device to achieve automatic folding or unfolding of the platform panel 31, thereby saving manpower, time and effort.
[0069] It should be noted that this embodiment does not limit the specific structure of the telescopic drive device, as long as the telescopic drive device can output telescopic movement and drive the platform panel 31 to rotate, fold, or unfold. For example, the telescopic drive device includes a hydraulic cylinder 35, that is, the platform panel 31 is driven to fold or unfold by the hydraulic cylinder 35, so that the movement of the platform panel 31 is smooth and reliable.
[0070] Furthermore, the folded or unfolded state of the platform panel 31 can be defined by the stroke limit position of the hydraulic cylinder 35. For example, when the hydraulic cylinder 35 is at the minimum stroke position, the platform panel 31 is in the unfolded state; when the hydraulic cylinder 35 is at the maximum stroke position, the platform panel 31 is in the folded state.
[0071] In addition, considering the relatively long length of the vehicle frame 2, in order to ensure that the platform panel 31 has sufficient length to meet the user's needs, in some embodiments, the support platform on one side of the vehicle frame 2 includes three platform panels 31 arranged side by side. The middle platform panel 31 is connected to the two edge platform panels 31 respectively, and the two edge platform panels 31 are respectively provided with telescopic drive devices between themselves and the vehicle frame 2.
[0072] In other words, this embodiment utilizes three side-by-side platform panels 31 spliced together to form a single-side platform panel 31 of the vehicle frame 2, ensuring that the platform panel 31 on one side of the vehicle frame 2 has sufficient overall length to meet user needs. Furthermore, by connecting the middle platform panel 31 to the two edge platform panels 31 respectively, a telescopic drive device corresponding to the two edge platform panels 31 is used to drive the three platform panels 31 on the same side to fold or unfold synchronously. That is, a telescopic drive device is only provided between the two edge platform panels 31 and the vehicle frame 2, so that when the two edge platform panels 31 fold or unfold, the middle platform panel 31 folds or unfolds synchronously, thereby achieving synchronous operation of the three platform panels 31 on the same side. This solution saves on telescopic drive devices and reduces costs. For example, the middle platform panel 31 is connected to the two edge platform panels 31 respectively via connecting pins 37.
[0073] Furthermore, in order to facilitate the synchronous operation of the two platform panels 31 on the edge, in some embodiments, the telescopic drive device includes a hydraulic cylinder 35. The hydraulic cylinders 35 connected to the two platform panels 31 on the same side and located at the edge are connected by a balance valve so that the hydraulic cylinders 35 connected to the two platform panels 31 on the same side and located at the edge operate synchronously.
[0074] That is, in this embodiment, the hydraulic cylinders 35 connected to the two platform panels 31 on the edge are linked by a balance valve, thereby realizing the synchronous operation of the hydraulic cylinders 35 connected to the two platform panels 31 on the edge, and finally realizing the synchronous unfolding or folding of the two platform panels 31 on the same side and located at the edge.
[0075] Additionally, in some embodiments, at least one platform panel 31 is connected to a ladder 36, which is foldable under the platform panel 31.
[0076] In other words, this embodiment provides a ladder 36 to facilitate users climbing onto the support platform. At the same time, the ladder 36 can be folded under the platform panel 31, which helps to reduce the overall transportation volume.
[0077] In addition to the aforementioned cotton harvester engine support device and cotton harvester frame device, this utility model embodiment also provides a cotton harvester including the cotton harvester frame device disclosed in the above embodiments. For the structure of other parts of the cotton harvester, please refer to the prior art, which will not be repeated here.
[0078] In other words, the key point of this embodiment is that the cotton harvester adopts the cotton harvester frame device disclosed in any of the above embodiments, and the cotton harvester frame device disclosed in any of the above embodiments adopts the cotton harvester engine support device described above. Therefore, the cotton harvester has the beneficial effects of at least the cotton harvester engine support device and the cotton harvester frame device, which will not be repeated here.
[0079] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.
[0080] The above provides a detailed description of the cotton harvester engine support device, cotton harvester frame device, and cotton harvester provided by this utility model. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of this utility model.
Claims
1. A cotton harvester engine support device, characterized in that, include: The support member (11) is provided with a mounting part (111), which is used to mount the engine (4). At least three tie rods (12), one end of which is hinged to the support member (11) and the other end is hinged to the frame body (2). The at least three tie rods (12) are not collinear so that the cotton harvester engine support device is connected to the frame body (2) through all the tie rods (12).
2. The cotton harvester engine support device according to claim 1, characterized in that, All the tie rods (12) are divided into three types: a first tie rod (121), a second tie rod (122) and a third tie rod (123). The first tie rod (121) is used to connect to the bottom of the vehicle frame (2), the second tie rod (122) is used to connect to the front axle bracket (21) of the vehicle frame (2), and the third tie rod (123) is used to connect to the rear axle bracket (22) of the vehicle frame (2).
3. The cotton harvester engine support device according to claim 2, characterized in that, The length of the third pull rod (123) is adjustable; and / or, The pull rod (12) is connected to the support member (11) via a first round-headed pin (13), and the pull rod (12) is provided with a second round-headed pin (14) for connection to the vehicle frame (2); and / or, The support member (11) is a planar frame structure welded from steel parts, and the mounting part (111) is a first ear plate provided on the support member (11).
4. A cotton harvester frame device, characterized in that, It includes a frame body (2) and a cotton harvester engine support device as described in any one of claims 1-3, wherein the tie rod (12) of the cotton harvester engine support device is connected to the frame body (2).
5. The cotton harvester frame device according to claim 4, characterized in that, The frame body (2) has foldable support platforms on both sides in the width direction.
6. The cotton harvester frame device according to claim 5, characterized in that, The support platform includes: The platform panel (31) is hinged at one end to the vehicle frame (2) and has a horizontal state and a folded state; The guardrail (32) is hinged to the end of the platform panel (31) away from the vehicle frame (2) via the guardrail limiting seat (33); The connecting rod (34) is hinged to the railing limiting seat (33) and the vehicle frame (2) respectively; The vehicle frame (2), the platform panel (31), the railing limit seat (33) and the connecting rod (34) form a four-bar linkage mechanism. When the platform panel (31) switches between the horizontal state and the folded state, the guardrail (32) is always in the vertical state.
7. The cotton harvester frame device according to claim 6, characterized in that, The support platform also includes: The telescopic drive device is hinged at both ends to the vehicle frame (2) and the platform panel (31) respectively. The telescopic drive device is used to drive the platform panel (31) to switch between the horizontal state and the folded state.
8. The cotton harvester frame device according to claim 7, characterized in that, The support platform on one side of the vehicle frame (2) includes three platform panels (31) arranged side by side. The middle platform panel (31) is connected to the two edge platform panels (31) respectively. The two edge platform panels (31) are respectively provided with the telescopic drive device between themselves and the vehicle frame (2).
9. The cotton harvester frame device according to claim 8, characterized in that, The telescopic drive device includes hydraulic cylinders (35). Two hydraulic cylinders (35) connected to the same side and edge of the platform panels (31) are connected via a balance valve to synchronize the operation of the two hydraulic cylinders (35) connected to the same side and edge of the platform panels (31); and / or, At least one of the platform panels (31) is connected to a ladder (36) which is foldable under the platform panel (31).
10. A cotton harvester, characterized in that, Includes the cotton harvester frame device as described in any one of claims 4-9.