Front end hitching structure of middle mower of tractor and tractor

Abstract

The utility model discloses a front end hitching structure of a middle mower of a tractor and the tractor, and relates to the technical field of mowers for tractors. The hooking structure comprises a front hook assembly and a traction rod assembly, the front hook assembly is used for being fixedly connected with a front bracket of the tractor, and the traction rod assembly is used for being connected with the mower; the locking rocker assembly comprises at least two rotating plates which are oppositely arranged and a handle connecting shaft; a handle connecting shaft penetrates through and is fixedly connected with the rotating plates, each rotating plate is provided with a rocker rotating shaft, and at least one rotating plate is provided with a first spring lock pin mechanism. The front hook assembly comprises at least two hook-shaped front hanging plates which are oppositely arranged, and the front hanging plates are used for being connected with the handle connecting shaft in a hanging mode. A locking hole corresponding to the first spring lock pin mechanism is formed in the front hanging plate; the traction rod assembly comprises traction rods arranged corresponding to the rotating plates, and a rotating sleeve is arranged at the front end of each traction rod. The hanging device has the advantages of being high in hanging speed, reliable in connection, high in universality and the like.

Description

Technical Field

[0001] This application relates to the field of tractor-mounted lawnmower technology, specifically to a tractor-mounted lawnmower front-end attachment structure and a tractor. Background Technology

[0002] Currently, tractor mowers are usually attached to the front or rear of the tractor, with mid-mounted mowers being less common. Furthermore, there are issues such as slow attachment speed and unreliable connection.

[0003] Patent CN202421124387.7 discloses a front-end mounting structure for a tractor-mounted lawnmower. This application designs a suitable structure for the tractor front bracket and the lawnmower body, which can mount the lawnmower under the tractor and between the two wheels, realizing a tractor-mounted lawnmower. It also adopts an automatic mounting method while the tractor is moving, which improves the mounting efficiency.

[0004] However, in this application, the connection between the hanger and the hook assembly is only a hook-and-hook connection, which is not secure enough, especially when used in bumpy areas, there is a risk of the hook coming off. Utility Model Content

[0005] The purpose of this application is to provide a tractor-mounted lawnmower front-end attachment structure and tractor, which has the advantages of reliable connection and convenient operation.

[0006] In the first aspect, the tractor-mounted lawnmower front-end attachment structure provided in this application includes a front hook assembly and a drawbar assembly. The front hook assembly is used to be fixedly connected to the front bracket of the tractor, and the drawbar assembly is used to be connected to the lawnmower. It also includes a locking rocker assembly.

[0007] The locking rocker assembly includes at least two oppositely arranged rotating plates and a handle connecting shaft; the handle connecting shaft passes through and is fixedly connected to the rotating plates, each rotating plate is provided with a rocker shaft, and at least one of the rotating plates is provided with a first spring locking pin mechanism;

[0008] The front hook assembly includes at least two hook-shaped, oppositely arranged front mounting plates, which are used to hook onto the handle connecting shaft; and locking holes corresponding to the first spring locking pin mechanism are provided on the front mounting plates.

[0009] The traction rod assembly includes traction rods corresponding to the rotating plate, and a rotating sleeve is provided at the front end of each traction rod; the rotating sleeve is sleeved on the rocker arm shaft, so that the traction rod assembly can rotate relative to the locking rocker arm assembly.

[0010] In a preferred embodiment, the front hook assembly further includes a first connecting rod and a second connecting rod;

[0011] The two ends of the first connecting rod and the second connecting rod respectively extend through the upper part of each of the front mounting plates and are fixedly connected to each of the front mounting plates.

[0012] In a preferred embodiment, the lower part of each of the front mounting plates is further connected by a reinforcing plate.

[0013] In a preferred embodiment, a connecting rod assembly is further provided between the pull rod assembly and the lawnmower; the connecting rod assembly includes a connecting sleeve, a pull fork, a second spring locking pin mechanism, and a screw;

[0014] The second spring locking pin mechanism is disposed on the pull fork, which is clamp-shaped and connected to the mounting plate of the lawnmower through the second spring locking pin mechanism;

[0015] The front end of the pull fork is provided with an internal thread section, and the screw passes through the rear bottom surface of the connecting screw sleeve and is threadedly connected to the front end of the pull fork.

[0016] The front end of the connecting screw sleeve is provided with an internal thread section, and the rear end of the traction rod is provided with an external thread section. The connecting screw sleeve and the traction rod are connected by threads.

[0017] In a preferred embodiment, the rear inner section of the connecting threaded sleeve is a smooth wall, and the portion of the screw located inside the connecting threaded sleeve is a smooth section, allowing relative rotation between the connecting threaded sleeve and the screw.

[0018] In a preferred embodiment, the screw and the pull fork are further connected by spot welding.

[0019] In a preferred embodiment, a backup nut is also included, which is disposed on the external thread section of the traction rod and abuts against the front end of the connecting sleeve.

[0020] In a preferred embodiment, the tow bar assembly further includes a tow bar connecting plate connected between each of the tow bars.

[0021] In a preferred embodiment, one of the first connecting rod and the second connecting rod is fitted with a first protective sleeve on the outer portion of the front mounting plate, and the other is fitted with a second protective sleeve on the portion between the two front mounting plates.

[0022] Secondly, this application also provides a tractor, including a tractor front bracket, a fixed bracket, and the aforementioned tractor-mounted lawnmower front-end mounting structure;

[0023] The fixed bracket is mounted on the front bracket of the tractor, and the front hook assembly is connected to the fixed bracket.

[0024] Compared with the prior art, this application has the following beneficial effects:

[0025] The tractor-mounted lawnmower front-end mounting mechanism provided in this application allows the centrally mounted lawnmower to be mounted under the tractor, between the two wheels, offering the following advantages:

[0026] Fast connection and disassembly: It can significantly shorten the connection and disassembly time and improve work efficiency;

[0027] Easy to operate: No complicated tools or professional skills are required, reducing the labor intensity and difficulty of operation for operators;

[0028] Reliable connection: The front hook and locking rocker assembly are connected by the first spring locking pin mechanism, which ensures a firm connection and guarantees stable operation of the lawnmower during operation, reducing malfunctions and safety hazards caused by loose connections;

[0029] High versatility: It is suitable for various models and specifications of tractors and lawnmowers, and has good compatibility with different agricultural implements. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the overall structure of the tractor-mounted lawnmower front-end attachment structure provided in the embodiments of this application;

[0032] Figure 2 This is a schematic diagram of the front hook assembly in the tractor-mounted lawnmower front-end attachment structure provided in the embodiments of this application;

[0033] Figure 3 An exploded view of the locking rocker assembly and the drawbar assembly in the tractor-mounted lawnmower front-end attachment structure provided in the embodiments of this application;

[0034] Figure 4 A schematic diagram of the combination of the locking rocker assembly and the drawbar assembly in the front-end attachment structure of the tractor-mounted lawnmower provided in this embodiment of the application;

[0035] Figure 5 A cross-sectional schematic diagram of the connecting rod assembly in the front-end attachment structure of the tractor-mounted lawnmower provided in the embodiments of this application;

[0036] Figure 6This is a schematic diagram showing the state when the tractor-mounted lawnmower front-end mounting structure is connected to the tractor, as provided in an embodiment of this application.

[0037] Figure label:

[0038] 1-Front hook assembly; 11-Front mounting plate; 12-First connecting rod; 13-Second connecting rod; 14-Reinforcing plate; 15-First protective sleeve; 16-Second protective sleeve;

[0039] 2-Locking rocker assembly; 21-Rotating plate; 22-Rocker shaft; 23-First spring locking pin mechanism; 24-Handle connecting shaft;

[0040] 3-Traction rod assembly; 31-Rotating sleeve; 32-Traction rod; 33-Traction rod connecting plate;

[0041] 4-Connecting rod assembly; 41-Prepared nut; 42-Connecting threaded sleeve; 43-Pull fork; 44-Second spring locking pin mechanism; 45-Screw;

[0042] 5-Tractor front bracket;

[0043] 6-Fixed bracket;

[0044] 7- Lawn mower. Detailed Implementation

[0045] The following detailed embodiments are provided to help the reader gain a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein; changes that will be apparent after understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.

[0046] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0047] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. In contrast, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between.

[0048] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0049] Although terms such as “first,” “second,” and “third” may be used herein to describe individual components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as the second component, assembly, region, layer, or part may also be referred to as the second component, assembly, region, layer, or part.

[0050] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” are used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also different orientations of the device during use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element. Therefore, the term “above” includes both “above” and “below” orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relation terms used herein will be interpreted accordingly.

[0051] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0052] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0053] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application.

[0054] like Figures 1 to 5 As shown, the tractor-mounted lawnmower front-end attachment structure provided in this application includes a front hook assembly 1 and a drawbar assembly 3. The front hook assembly 1 is used to be fixedly connected to the tractor front bracket 5, and the drawbar assembly 3 is used to connect to the lawnmower 7.

[0055] It also includes a locking rocker assembly 2, which includes two opposing rotating plates 21 and a handle connecting shaft 24; the handle connecting shaft 24 is "L" shaped, passes through and is fixedly connected to the rotating plates 21; each rotating plate 21 is provided with a rocker shaft 22, and a first spring locking pin mechanism 23 is provided on one of the rotating plates 21.

[0056] The front hook assembly 1 includes two hook-shaped front mounting plates 11 arranged opposite each other. The front mounting plates 11 are used to hook with the handle connecting shaft 24. Locking holes corresponding to the first spring locking pin mechanism 23 are provided on the front mounting plates 11.

[0057] The traction rod assembly 3 includes two traction rods 32 corresponding to the rotating plate 21, and a rotating sleeve 31 is provided at the front end of each traction rod 32; the rotating sleeve 31 is sleeved on the rocker shaft 22, so that the traction rod assembly 3 can rotate relative to the locking rocker assembly 2. Moreover, both the rotating sleeve 31 and the rocker shaft 22 are made of wear-resistant materials to ensure service life.

[0058] A connecting rod assembly 4 is also provided between the pull rod assembly 3 and the lawnmower 7; the connecting rod assembly 4 includes a connecting screw sleeve 42, a pull fork 43, a second spring locking pin mechanism 44, and a screw 45.

[0059] The second spring locking pin mechanism 44 is welded onto the pull fork 43, which is clamp-shaped and connected to the mounting plate at the front end of the lawnmower 7 via the second spring locking pin mechanism 44.

[0060] The front end of the pull fork 43 is provided with an internal thread section, and the screw 45 is an internal hexagonal head screw, which passes through the rear bottom surface of the connecting sleeve 42 and is threadedly connected to the front end of the pull fork 43.

[0061] The front end of the connecting screw sleeve 42 is provided with an internal thread section, and the rear end of the traction rod 32 is provided with an external thread section. The connecting screw sleeve 42 and the traction rod 32 are connected by threads.

[0062] When connecting, such as Figure 6 As shown, first connect the connecting rod assembly 4 to the front end of the lawnmower 7, and connect the traction rod assembly 3 to the connecting rod assembly 4. Then, hang the handle connecting shaft 24 in the locking rocker assembly 2 onto the front mounting plate 11 of the front hook assembly 1. Then, rotate the handle connecting shaft 24 upward to rotate the locking rocker assembly 2 to the correct position. Then, align the first spring locking pin mechanism 23 with the locking hole on the front mounting plate 11 and lock it. Then, rotate the connecting screw sleeve 42 to adjust the position of the lawnmower, and the lawnmower 7 can be hooked up.

[0063] This embodiment has the following advantages:

[0064] Fast connection and disassembly: It can significantly shorten the connection and disassembly time and improve work efficiency;

[0065] Easy to operate: No complicated tools or professional skills are required, which reduces the labor intensity and operation difficulty of operators; the handle connecting shaft 24 in the locking rocker assembly 2 can serve as a connecting shaft for hooking with the front hook assembly 1, and also as a rotating handle for installation and removal. During installation, the lever principle is used to hook it into the correct position with less effort.

[0066] Reliable connection: The front hook assembly 1 and the locking rocker assembly 2 are connected by the first spring locking pin mechanism 23, which is firm and can ensure that the mechanism is stable and does not fall off on bumpy roads. This ensures that the lawnmower works stably during operation and reduces malfunctions and safety hazards caused by loose connections.

[0067] High versatility: The connecting rod assembly 4 can adjust the front and rear position of the lawnmower after it is attached to the lawnmower 7, so it is suitable for a variety of tractors and lawnmowers of different models and specifications, and has good compatibility between different agricultural implements.

[0068] In a preferred embodiment, the rear inner section of the connecting threaded sleeve 42 is a smooth wall, and the portion of the screw 45 located inside the connecting threaded sleeve 42 is a smooth section, so that the connecting threaded sleeve 42 and the screw 45 can rotate relative to each other, facilitating the installation between the connecting rod assembly 4 and the traction rod assembly 3.

[0069] To make the connection more secure, the screw 45 and the pull fork 43 are further reinforced by spot welding.

[0070] It also includes a preload nut 41, which is located on the external thread section of the traction rod 32 and can abut against the front end of the connecting sleeve 42. After the connecting sleeve 42 is connected to the traction rod 32 and adjusted into place, the preload nut 41 is tightened to further fix the relative position of the connecting sleeve 42 and the traction rod 32.

[0071] In a preferred embodiment, the front hook assembly 1 further includes a first connecting rod 12 and a second connecting rod 13; the two ends of the first connecting rod 12 and the second connecting rod 13 respectively extend through the upper part of each front mounting plate 11 and are fixedly connected to each front mounting plate 11. The lower part of each front mounting plate 11 is also connected by a reinforcing plate 14. The first connecting rod 12, the second connecting rod 13, and the reinforcing plate 14 can significantly improve the strength of the front hook assembly 1.

[0072] The tow bar assembly 3 also includes a tow bar connecting plate 33 connected between each tow bar 32 to enhance the strength of the tow bar assembly 3.

[0073] This embodiment also provides a tractor, including a tractor front bracket 5, a fixed bracket 6, and the aforementioned tractor-mounted lawnmower front-end attachment structure;

[0074] The fixed bracket 6 is mounted on the front bracket 5 of the tractor, and the front hook assembly 1 is connected to the fixed bracket 6 through the first connecting rod 12 and the second connecting rod 13.

[0075] The first connecting rod 12 is fitted with a first protective sleeve 15 on the part between the front mounting plate 11 and the fixed bracket 6, and the second connecting rod 13 is fitted with a second protective sleeve 16 on the part between the two front mounting plates 11.

[0076] The first sheath 15 and the second sheath 16 can limit the movement between the front mounting plate 11 and the fixed bracket 6.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A front-end attachment structure for a tractor-mounted lawnmower, comprising a front hook assembly and a drawbar assembly, wherein the front hook assembly is used for fixed connection with the tractor front bracket, and the drawbar assembly is used for connection with the lawnmower, characterized in that... It also includes a locking joystick assembly; The locking rocker assembly includes at least two oppositely arranged rotating plates and a handle connecting shaft; the handle connecting shaft passes through and is fixedly connected to the rotating plates, each rotating plate is provided with a rocker shaft, and at least one of the rotating plates is provided with a first spring locking pin mechanism; The front hook assembly includes at least two hook-shaped, oppositely arranged front mounting plates, which are used to hook onto the handle connecting shaft; and locking holes corresponding to the first spring locking pin mechanism are provided on the front mounting plates. The traction rod assembly includes traction rods corresponding to the rotating plate, and a rotating sleeve is provided at the front end of each traction rod; the rotating sleeve is sleeved on the rocker arm shaft, so that the traction rod assembly can rotate relative to the locking rocker arm assembly.

2. The tractor-mounted lawnmower front-end attachment structure according to claim 1, characterized in that, The front hook assembly also includes a first connecting rod and a second connecting rod; The two ends of the first connecting rod and the second connecting rod respectively extend through the upper part of each of the front mounting plates and are fixedly connected to each of the front mounting plates.

3. The tractor-mounted lawnmower front-end attachment structure according to claim 2, characterized in that, The lower part of each of the aforementioned front mounting plates is also connected by a reinforcing plate.

4. The tractor-mounted lawnmower front-end attachment structure according to claim 1, characterized in that, A connecting rod assembly is also provided between the drawbar assembly and the lawnmower; The connecting rod assembly includes a connecting sleeve, a pull fork, a second spring locking pin mechanism, and a screw; The second spring locking pin mechanism is disposed on the pull fork, which is clamp-shaped and connected to the mounting plate of the lawnmower through the second spring locking pin mechanism; The front end of the pull fork is provided with an internal thread section, and the screw passes through the rear bottom surface of the connecting screw sleeve and is threadedly connected to the front end of the pull fork. The front end of the connecting screw sleeve is provided with an internal thread section, and the rear end of the traction rod is provided with an external thread section. The connecting screw sleeve and the traction rod are connected by threads.

5. The tractor-mounted lawnmower front-end attachment structure according to claim 4, characterized in that, The rear section of the inner part of the connecting threaded sleeve is a smooth wall, and the part of the screw located inside the connecting threaded sleeve is a smooth section, so that the connecting threaded sleeve and the screw can rotate relative to each other.

6. The tractor-mounted lawnmower front-end attachment structure according to claim 4, characterized in that, The screw and the pull fork are also connected by spot welding.

7. The tractor-mounted lawnmower front-end attachment structure according to claim 4, characterized in that, It also includes a preload nut, which is disposed on the external thread section of the traction rod and abuts against the front end of the connecting sleeve.

8. The tractor-mounted lawnmower front-end attachment structure according to claim 1, characterized in that, The tow bar assembly also includes a tow bar connecting plate connected between each of the tow bars.

9. The tractor-mounted lawnmower front-end attachment structure according to claim 2, characterized in that, One of the first connecting rods and the second connecting rod is fitted with a first protective sleeve on the outer portion of the front mounting plate, and the other is fitted with a second protective sleeve on the portion between the two front mounting plates.

10. A tractor, characterized in that, Includes a tractor front bracket, a fixed bracket, and the tractor-mounted lawnmower front-end mounting structure as described in any one of claims 1 to 9; The fixed bracket is mounted on the front bracket of the tractor, and the front hook assembly is connected to the fixed bracket.

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