Integrated lifting mechanism and tractor

Abstract

The utility model belongs to the technical field of agricultural machinery, and discloses an integrated lifting mechanism and a tractor. The integrated lifting mechanism comprises a PTO shell, a rear axle shell, half axle shells, an upper connecting assembly and a lifting assembly, the PTO shell is installed on the rear axle shell, and the half axle shells are installed at the two ends of the rear axle shell respectively. The upper connecting assembly is installed on the PTO shell and can be connected to an external agricultural implement. The lifting assembly is installed on the PTO shell, the lifting assembly and the upper connecting assembly are arranged in a spaced mode, and the lifting assembly can be connected to the external agricultural implement. The external agricultural implement can ascend or descend under the action of the upper connecting assembly and the lifting assembly. The integrated lifting mechanism is concentrated in structure, and the compactness of spatial arrangement can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to an integrated lifting mechanism and a tractor. Background Art

[0002] On traditional tractors, the multiple parts of the lifting mechanism used to connect external agricultural machinery are respectively arranged on the PTO housing, the brake housing and the rear frame, resulting in the lifting mechanism occupying a large space and the entire lifting mechanism being arranged relatively dispersed, which is not conducive to improving integrity and compactness.

[0003] Therefore, there is an urgent need for an integrated lifting mechanism and a tractor to solve the above problems. Utility Model Content

[0004] According to one aspect of the present invention, an object is to provide an integrated lifting mechanism, which has a centralized structure and is conducive to improving the compactness of spatial arrangement.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] Integrated lifting mechanism, including:

[0007] A PTO housing, a rear axle housing and a half-axle housing, wherein the PTO housing is mounted on the rear axle housing, and the half-axle housings are mounted on both ends of the rear axle housing;

[0008] an upper connecting assembly, the upper connecting assembly being mounted on the PTO housing and being capable of connecting to an external agricultural implement;

[0009] A lifting assembly, the lifting assembly being mounted on the PTO housing and spaced apart from the upper connecting assembly, the lifting assembly being capable of being connected to the external agricultural implement;

[0010] The external agricultural implement can be lifted or lowered under the action of the upper connecting assembly and the lifting assembly.

[0011] As a preferred solution of the integrated lifting mechanism provided by the present invention, the lifting assembly includes two lifting devices, the two lifting devices are arranged at intervals on the PTO housing, the upper connecting assembly is located between the two lifting devices, and the connection line between the connection between the upper connecting assembly and the external agricultural machinery and the connection between the two lifting devices and the external agricultural machinery are not parallel to each other.

[0012] As a preferred solution of the integrated lifting mechanism provided by the present utility model, the PTO housing includes a main housing, an upper mounting seat and a lower mounting seat, the main housing is mounted on the rear axle housing, the upper mounting seat and the lower mounting seat are spaced apart and arranged on the main housing, and the setting height of the upper mounting seat is higher than the setting height of the lower mounting seat;

[0013] The lifting device includes a lifting cylinder, a lifting arm, a lifting rod and a lower rod, wherein the lifting cylinder is arranged on the lower mounting seat, the lifting arm is rotatably connected to the upper mounting seat, the lower rod is rotatably connected to the lower mounting seat, and the lower rod and the lifting arm are connected through the lifting rod;

[0014] The lifting cylinder is connected to the lifting arm. The lifting arm can rotate relative to the PTO housing under the drive of the lifting cylinder. The lower link can be rotated and lifted or rotated and lowered relative to the PTO housing under the drive of the lifting arm.

[0015] As a preferred solution of the integrated lifting mechanism provided by the present invention, the integrated lifting mechanism also includes a limiting assembly, which includes a mounting seat and a limiting rod. The mounting seat is connected to the half-axle housing, and the limiting rod is rotatably connected between the mounting seat and the lower pull rod.

[0016] As a preferred solution of the integrated lifting mechanism provided by the present invention, the lower mounting seat includes a first mounting groove and a second mounting groove with grooves arranged opposite to each other, the lifting cylinder is arranged in the first mounting groove and extends toward the direction of the upper mounting seat, and the lower pull rod is rotatably connected to the second mounting groove.

[0017] As a preferred solution of the integrated lifting mechanism provided by the present invention, the lifting device further includes a connecting shaft, which is arranged in the second mounting groove along the width direction of the main shell, and the pull-down rod can rotate around the connecting shaft.

[0018] As a preferred solution of the integrated lifting mechanism provided by the present invention, the height of the connection between the upper connecting assembly and the external agricultural implement is higher than the height of the connection between the lifting device and the external agricultural implement.

[0019] As a preferred solution of the integrated lifting mechanism provided by the present invention, the upper connection assembly includes a support seat and an upper pull rod, the support seat is arranged on the side of the PTO housing away from the rear axle housing, the upper pull rod is rotatably connected to the support seat, and the upper pull rod can be connected to the external agricultural machinery.

[0020] As a preferred solution of the integrated lifting mechanism provided by the present invention, the support seat includes two support connecting plates arranged at intervals, and one end of the upper pull rod is rotatably connected between the two support connecting plates.

[0021] According to another aspect of the present invention, an object is to provide a tractor, comprising a vehicle frame and an integrated lifting mechanism as described in any of the above schemes, wherein the rear axle housing and the half-axle housing are both arranged on the vehicle frame.

[0022] Beneficial effects of the utility model:

[0023] The integrated lifting mechanism provided by the utility model includes a PTO housing, a rear axle housing, a half-axle housing, an upper connecting assembly, and a lifting assembly. The PTO housing is mounted on the rear axle housing, and half-axle housings are respectively mounted on both ends of the rear axle housing. The upper connecting assembly is mounted on the PTO housing and can be connected to an external agricultural implement. The lifting assembly is mounted on the PTO housing and spaced apart from the upper connecting assembly, and can be connected to the external agricultural implement. By integrating the upper connecting assembly and the lifting assembly into the PTO housing, the structure of the integrated lifting mechanism can be made more centralized, which is conducive to improving the compactness of the spatial layout.

[0024] The tractor provided by the utility model adopts the above-mentioned integrated lifting mechanism to realize the lifting and lowering of external agricultural machinery, which is conducive to improving the compactness of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0026] Figure 1 It is a schematic diagram of an integrated lifting mechanism provided by an embodiment of the present utility model;

[0027] Figure 2 It is a side view of the integrated lifting mechanism provided by an embodiment of the present utility model.

[0028] In the picture:

[0029] 100, upper connecting assembly; 110, support base; 120, upper pull rod;

[0030] 200, lifting assembly; 210, lifting cylinder; 220, lifting arm; 230, lifting rod; 240, lower rod; 250, connecting shaft;

[0031] 300, PTO housing; 310, main housing; 320, upper mounting seat; 330, lower mounting seat; 331, first mounting slot; 332, second mounting slot;

[0032] 400, rear axle housing;

[0033] 500, half-shaft housing;

[0034] 600, limit assembly; 610, mounting seat; 620, limit rod. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0036] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0039] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0040] It should also be noted that, in the description of this utility model, unless otherwise specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0041] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0042] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0043] Reference Figure 1 and Figure 2 This embodiment provides an integrated lifting mechanism and a tractor. The tractor includes a frame (not shown) and the integrated lifting mechanism provided in this embodiment. The integrated lifting mechanism can be used to connect to an external agricultural implement (not shown) to raise or lower the external agricultural implement.

[0044] Specifically, the integrated lifting mechanism provided in this embodiment includes a PTO housing 300, a rear axle housing 400, a half-axle housing 500, an upper connecting assembly 100, and a lifting assembly 200. The PTO housing 300 is mounted to the rear axle housing 400 using bolts and other fasteners. A half-axle housing 500 is mounted at each end of the rear axle housing 400. Both the rear axle housing 400 and the half-axle housing 500 are mounted on the vehicle frame. The upper connecting assembly 100 is mounted on the PTO housing 300 and can be connected to an external agricultural implement. The lifting assembly 200 is mounted on the PTO housing 300 and spaced apart from the upper connecting assembly 100. The lifting assembly 200 can be connected to the external agricultural implement. The external agricultural implement can be raised or lowered by the operation of the upper connecting assembly 100 and the lifting assembly 200. By integrating the upper connection assembly 100 and the lifting assembly 200 on the PTO housing 300 respectively, the structure of the integrated lifting mechanism can be made more centralized, which is conducive to improving the compactness of the spatial layout.

[0045] More specifically, the lifting assembly 200 includes two lifting devices spaced apart on the PTO housing 300. The upper connecting assembly 100 is positioned between the two lifting devices. The connection between the upper connecting assembly 100 and the external agricultural implement and the connection between the two lifting devices and the external agricultural implement are not parallel. In other words, the connection between the upper connecting assembly 100 and the external agricultural implement and the connection between the two lifting devices and the external agricultural implement are located at the vertices of a triangle, thereby enhancing the stability of the lifting and lowering support for the external agricultural implement.

[0046] More specifically, the connection points between the two lifting devices and the external agricultural implement are at the same level, while the connection point between the upper connecting assembly 100 and the external agricultural implement is higher than the connection point between the lifting devices and the external agricultural implement. In other words, the two lifting devices provide primary support and lifting for the external agricultural implement, while the upper connecting assembly 100 can provide auxiliary lifting for the external agricultural implement based on the two lifting devices.

[0047] It should be noted that the two lifting devices are operated simultaneously. Through the above arrangement, the stability and reliability of lifting or lowering the external agricultural implement can be improved.

[0048] Continue to refer to Figure 1 and Figure 2 The PTO housing 300 includes a main housing 310, an upper mounting seat 320, and a lower mounting seat 330. The main housing 310 is mounted on the side of the rear axle housing 400, and the upper mounting seat 320 and the lower mounting seat 330 are spaced apart on the main housing 310 in the height direction, with the upper mounting seat 320 being higher than the lower mounting seat 330.

[0049] Specifically, the upper connection assembly 100 includes a support base 110 and an upper pull rod 120. The support base 110 is disposed on a side of the main housing 310 facing away from the rear axle housing 400. One end of the upper pull rod 120 is rotatably connected to the support base 110, and the other end of the upper pull rod 120 can be connected to the external agricultural implement.

[0050] More specifically, the support base 110 includes two support connecting plates spaced apart along the width direction of the main housing 310. The support connecting plates are provided with connecting holes, and the rotating shaft of the upper pull rod 120 is passed through the two connecting holes to achieve rotational connection relative to the two support connecting plates.

[0051] Continue to refer to Figure 1 and Figure 2 The lifting device includes a lifting cylinder 210, a lifting arm 220, a lifting rod 230, and a lower rod 240. The lifting cylinder 210 is mounted on the lower mounting seat 330. One end of the lifting arm 220 is rotatably connected to the upper mounting seat 320 and extends away from the upper mounting seat 320. The lower rod 240 is rotatably connected to the lower mounting seat 330 and extends away from the lower mounting seat 330. The lower rod 240 and the lifting arm 220 are connected by the lifting rod 230 to achieve a linkage. The output end of the lifting cylinder 210 is connected to the lifting arm 220. The lifting arm 220 can rotate relative to the PTO housing 300 under the drive of the lifting cylinder 210. The lower rod 240 can be rotated and raised or lowered relative to the PTO housing 300 under the drive of the lifting arm 220. When the output end of the lifting cylinder 210 extends, it can push the lifting arm 220, and the lifting arm 220 rotates, driving the lifting rod 230 to lift up, and pulling the lower rod 240 to lift up.

[0052] Specifically, the lower mounting seat 330 is disposed on the side of the main housing 310 in the width direction, and the upper mounting seat 320 is disposed on the top of the main housing 310 in the height direction. The upper mounting seat 320 and the lower mounting seat 330 provide a mounting location for the lifting device, thereby protecting the main housing 310 and avoiding mechanical connections such as perforations or fixings on the main housing 310. This reduces the impact of the lifting device installation on the main housing 310 on its structural stability.

[0053] More specifically, the lower mounting seat 330 is provided with a first mounting slot 331 and a second mounting slot 332 with opposite notches. The lifting cylinder 210 is disposed in the first mounting slot 331 and extends toward the upper mounting seat 320 , and the lower pull rod 240 is rotatably connected to the second mounting slot 332 .

[0054] More specifically, the lifting device further includes a connecting shaft 250 . The connecting shaft 250 is disposed in the second mounting groove 332 along the width direction of the main housing 310 , and the lower pull rod 240 can rotate around the connecting shaft 250 .

[0055] Continue to refer to Figure 1 and Figure 2 The integrated lifting mechanism also includes a limiting assembly 600. The limiting assembly 600 includes a mounting base 610 and a limiting rod 620. The mounting base 610 is connected to the bottom of the half-shaft housing 500, and the limiting rod 620 is rotatably connected between the mounting base 610 and the lower link 240. When the lower link 240 is raised, the limiting rod 620 can simultaneously rotate upward relative to the mounting base 610 to maintain the stability of the lower link 240 during the process of lifting the external agricultural implement.

[0056] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Integrated lifting mechanism, characterized in that: include: A PTO housing (300), a rear axle housing (400) and a half-axle housing (500), wherein the PTO housing (300) is mounted on the rear axle housing (400), and the half-axle housings (500) are respectively mounted on both ends of the rear axle housing (400); An upper connection assembly (100), the upper connection assembly (100) being mounted on the PTO housing (300) and capable of being connected to an external agricultural implement; A lifting assembly (200), the lifting assembly (200) being mounted on the PTO housing (300) and spaced apart from the upper connecting assembly (100), the lifting assembly (200) being capable of being connected to the external agricultural implement; The external agricultural implement can be lifted or lowered under the action of the upper connection assembly (100) and the lifting assembly (200).

2. The integrated lifting mechanism according to claim 1, characterized in that: The lifting assembly (200) includes two lifting devices, the two lifting devices are spaced apart and arranged on the PTO housing (300), the upper connecting assembly (100) is located between the two lifting devices, and the connection between the upper connecting assembly (100) and the external agricultural implement and the connection between the two lifting devices and the external agricultural implement are not parallel to each other.

3. The integrated lifting mechanism according to claim 2, characterized in that: The PTO housing (300) comprises a main housing (310), an upper mounting seat (320) and a lower mounting seat (330); the main housing (310) is mounted on the rear axle housing (400); the upper mounting seat (320) and the lower mounting seat (330) are spaced apart and arranged on the main housing (310); the upper mounting seat (320) is arranged at a higher height than the lower mounting seat (330); The lifting device comprises a lifting cylinder (210), a lifting arm (220), a lifting rod (230) and a lower pull rod (240); the lifting cylinder (210) is arranged on the lower mounting seat (330); the lifting arm (220) is rotatably connected to the upper mounting seat (320); the lower pull rod (240) is rotatably connected to the lower mounting seat (330); and the lower pull rod (240) and the lifting arm (220) are connected via the lifting rod (230); The lifting cylinder (210) is connected to the lifting arm (220), and the lifting arm (220) can be rotated relative to the PTO housing (300) under the drive of the lifting cylinder (210), and the lower pull rod (240) can be rotated and raised or rotated and lowered relative to the PTO housing (300) under the drive of the lifting arm (220).

4. The integrated lifting mechanism according to claim 3, characterized in that: The integrated lifting mechanism further includes a limiting assembly (600), the limiting assembly (600) including a mounting seat (610) and a limiting rod (620), the mounting seat (610) being connected to the half-axle housing (500), and the limiting rod (620) being rotatably connected between the mounting seat (610) and the lower pull rod (240).

5. The integrated lifting mechanism according to claim 3, characterized in that: The lower mounting seat (330) includes a first mounting groove (331) and a second mounting groove (332) with grooves arranged opposite to each other. The lifting cylinder (210) is arranged in the first mounting groove (331) and extends toward the direction of the upper mounting seat (320). The lower pull rod (240) is rotatably connected to the second mounting groove (332).

6. The integrated lifting mechanism according to claim 5, characterized in that: The lifting device further comprises a connecting shaft (250), wherein the connecting shaft (250) is arranged in the second mounting groove (332) along the width direction of the main housing (310), and the lower pull rod (240) is capable of rotating around the connecting shaft (250).

7. The integrated lifting mechanism according to claim 2, characterized in that: The height of the connection between the upper connection assembly (100) and the external agricultural implement is higher than the height of the connection between the lifting device and the external agricultural implement.

8. The integrated lifting mechanism according to claim 1, characterized in that: The upper connection assembly (100) includes a support seat (110) and an upper pull rod (120), wherein the support seat (110) is arranged on a side of the PTO housing (300) away from the rear axle housing (400), and the upper pull rod (120) is rotatably connected to the support seat (110), and the upper pull rod (120) can be connected to the external agricultural machinery.

9. The integrated lifting mechanism according to claim 8, characterized in that: The support seat (110) comprises two support connecting plates arranged at intervals, and one end of the upper pull rod (120) is rotatably connected between the two support connecting plates.

10. A tractor, characterized in that The vehicle comprises a vehicle frame and an integrated lifting mechanism as claimed in any one of claims 1 to 9, wherein the rear axle housing (400) and the half-axle housing (500) are both arranged on the vehicle frame.

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