Anti-loosening structure, traction device and tractor

Abstract

The utility model relates to an anti-loosening structure, a traction device and a tractor, the structure comprises a mounting frame welding part, a mounting frame welding part bottom plate and a swing pin welding part, and the mounting frame welding part bottom plate is fixedly mounted at the lower end of the mounting frame welding part; the swing pin welding part is fixedly connected with the installation frame welding part bottom plate through a plurality of screws, and the upper ends of the screws extend into a plurality of threaded holes in the installation frame welding part bottom plate respectively. The screws are sleeved with screw limiting spacer bushes correspondingly, and one ends of the screw limiting spacer bushes extend into the spacer bush holes correspondingly. The gap between the inner hole of the screw limiting spacer bush and the outer circle of the screw is larger than the gap between the outer circle of the screw limiting spacer bush and the inner hole of the spacer bush hole. The traction device is simple in structure and reasonable in design, stable connection of the traction device in a working environment is guaranteed, connection looseness of the traction device caused by vibration, impact or other external force and the like is prevented, the situation that the working efficiency is reduced due to looseness and falling-off of the traction device in the working process is avoided, and personal injury caused by the looseness and falling-off is also avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of tractors, in particular to an anti-loosening structure, a traction device and a tractor. Background Art

[0002] With the acceleration of agricultural modernization, tractors, as important power machinery in agricultural production, are of great significance to improving agricultural production efficiency. As an important part of tractors, traction devices are used to pull agricultural machinery or trailers for operation. Due to the complex working conditions and harsh environment of tractors, the traction device has a large load. It is an important task to ensure the stable connection state of the traction device in a complex working environment. Utility Model Content

[0003] The utility model provides an anti-loosening structure, a traction device and a tractor, aiming to solve the problems in the prior art.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] A loosening prevention structure comprises a mounting frame weld, a mounting frame weld base plate and a swing pin weld, wherein the mounting frame weld base plate is fixedly mounted on the lower end of the mounting frame weld; the upper end of the swing pin weld penetrates the mounting frame weld base plate, and the lower end thereof is fixedly connected to the mounting frame weld base plate by a plurality of screws, the upper ends of the plurality of screws respectively extend into a plurality of threaded holes on the mounting frame weld base plate and are threadedly connected; a plurality of spacer holes coaxially distributed with the plurality of threaded holes are provided on the mounting frame weld base plate, a plurality of screws are respectively provided with screw limiting spacers, and one end of the plurality of screw limiting spacers respectively extends into the plurality of spacer holes; the gap between the inner hole of the screw limiting spacer and the outer circle of the screw is greater than the gap between the outer circle of the screw limiting spacer and the inner hole of the spacer hole.

[0006] The beneficial effects of the utility model are as follows: during assembly, the swing pin is welded to a rotating sleeve and a swing rod is provided, and the other end of the swing rod is used to connect an agricultural implement;

[0007] During operation, the traction rod is subjected to axial tension, and the swing pin weld may swing left and right under the force. Since the gap between the inner hole of the screw limit spacer and the outer circle of the screw is larger than the gap between the outer circle of the screw limit spacer and the inner hole of the spacer hole, when the swing pin weld swings, the outer circle of the screw limit spacer contacts with the inner hole of the spacer hole first, avoiding the shear force on the bolt caused by the contact between the inner hole of the screw limit spacer and the outer circle of the screw, thereby ensuring that the screw is not loosened during the operation of the traction device.

[0008] The utility model has a simple structure and a reasonable design, which ensures that the traction device is stably connected in a working environment, prevents the traction device from being loosened due to vibration, impact or other external forces, avoids reducing work efficiency due to loosening and falling of the traction device during work, and also avoids personal injury caused thereby.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, the installation frame is welded into an inverted U-shaped frame body, and the installation frame welded bottom plate is fixedly installed at the lower end opening of the inverted U-shaped frame body; the welded upper end of the swing pin passes through the installation frame welded bottom plate and extends into the inverted U-shaped frame body.

[0011] The beneficial effects of adopting the above further solution are simple structure, reasonable structural design of the welding of the mounting frame, convenient assembly, and no influence on the swing of the swing arm.

[0012] Furthermore, extension parts are respectively extended from both sides of the closed upper end of the inverted U-shaped frame, and fixing parts for mounting the inverted U-shaped frame on the rear axle housing are respectively installed on the two extension parts.

[0013] The beneficial effects of adopting the above further solution are simple structure, reasonable design, the connection between the rear axle housing and the inverted U-shaped frame can be achieved by using fixing parts, and the assembly is convenient.

[0014] Furthermore, a reinforcing plate is horizontally fixedly installed in the inverted U-shaped frame body, and the welded upper end of the swing pin passes through the reinforcing plate.

[0015] The beneficial effect of adopting the above further solution is that the reinforcing plate is reasonably arranged, which further enhances the welding strength of the entire installation frame and prolongs its service life.

[0016] Furthermore, the swing pin is welded to form an inverted T-shaped rod structure, and U-shaped openings are provided on both sides of its lower end; the number of the screws is two, and the two screws are stuck in the two U-shaped openings.

[0017] The beneficial effect of adopting the above further solution is that the shape of the swing pin welding is reasonably designed, which facilitates the assembly of various components.

[0018] Furthermore, a swing pin hole is provided on the welding bottom plate of the mounting frame for the swing pin to pass through for welding.

[0019] The beneficial effects of adopting the above further solution are simple structure, reasonable arrangement of the swing pin hole, and convenient assembly and welding of the swing pin.

[0020] The utility model also relates to a traction device, including a rear axle housing, and also including the anti-loosening structure and the rocker arm as described above, wherein the mounting frame is welded and fixedly mounted on the rear axle housing; one end of the rocker arm is rotatably sleeved on one end of the rocker pin welded thereon, and the other end is used for connecting and towing an agricultural implement.

[0021] The beneficial effect of adopting the above-mentioned further scheme is that the utility model also provides a traction device, which has a simple structure and a reasonable design, ensuring that the traction device is stably connected in the working environment, preventing the traction device from loosening due to vibration, impact or other external forces, avoiding the reduction of work efficiency due to the loosening and falling of the traction device during work, and avoiding personal injury caused thereby.

[0022] Furthermore, it also includes a towing mechanism, which is fixedly installed on the rear axle housing and is used to connect and tow the second agricultural machine.

[0023] The beneficial effects of adopting the above further solution are simple structure, reasonable design, and the use of the towing mechanism to connect the second agricultural machine to facilitate the corresponding operation and convenient operation.

[0024] Furthermore, a towing support plate is fixedly connected to the lower end of the towing mechanism, and an area for the swing arm to pass through is enclosed between the towing support plate and the towing mechanism.

[0025] The beneficial effects of adopting the above further scheme are simple structure and reasonable design. The area enclosed by the trailer support plate and the trailer mechanism is used to support the swing arm, thereby increasing the stability and strength of the swing arm, avoiding the swing arm from breaking, and extending its service life.

[0026] The utility model also relates to a tractor, comprising the traction device as described above.

[0027] The beneficial effect of adopting the above further scheme is that the utility model also provides a tractor with a simple structure and reasonable design, which ensures that the traction device is stably connected in the working environment, prevents the traction device from loosening due to vibration, impact or other external forces, avoids the traction device from loosening and falling off during work, reduces work efficiency, and avoids personal injury caused by it. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional structural schematic diagram of the anti-loosening structure in the utility model;

[0029] Figure 2 It is a bottom view of the anti-loosening structure in the utility model;

[0030] Figure 3 for Figure 2 Sectional view along AA direction;

[0031] Figure 4 It is a cross-sectional view of the installation frame welded to the bottom plate in the utility model;

[0032] Figure 5 It is a structural schematic diagram of the traction device in the utility model.

[0033] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0034] 1. Rear axle housing; 2. Towing mechanism; 3. Mounting frame welding; 4. Rocker arm; 5. Mounting frame welding base plate; 51. Rocker pin hole; 52. Spacer hole; 53. Threaded hole; 6. Towing support plate; 7. Rocker pin welding; 8. Screw limit spacer; 9. Screw; 10. Fixing piece; 11. Reinforcement plate. DETAILED DESCRIPTION

[0035] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0036] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0037] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0038] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0039] Example 1

[0040] like Figures 1 to 4 As shown, this embodiment provides an anti-loosening structure, including an installation frame weld 3, an installation frame weld base plate 5 and a swing pin weld 7, wherein the installation frame weld base plate 5 is fixedly installed at the lower end of the installation frame weld 3; the upper end of the swing pin weld 7 passes through the installation frame weld base plate 5, and the lower end thereof is fixedly connected to the installation frame weld base plate 5 by a plurality of screws 9, and the upper ends of the plurality of screws 9 respectively extend into a plurality of threaded holes 53 on the installation frame weld base plate 5 and are threadedly connected; the installation frame weld base plate 5 is provided with a plurality of spacer holes 52 coaxially distributed with the plurality of threaded holes 53, and the plurality of screws 9 are respectively sleeved with screw limiting spacers 8, and one end of the plurality of screw limiting spacers 8 respectively extends into the plurality of spacer holes 52; the gap between the inner hole of the screw limiting spacer 8 and the outer circle of the screw 9 is greater than the gap between the outer circle of the screw limiting spacer 8 and the inner hole of the spacer hole 52.

[0041] During assembly, a swing rod 4 is rotatably sleeved on the swing pin weld 7, and the other end of the swing rod 4 is used to connect an agricultural implement;

[0042] During operation, the traction rod (i.e., the rocker arm 4) is subjected to axial tension, and the rocker pin weld 7 may swing left and right under the force, because the gap between the inner hole of the screw limiting spacer 8 and the outer circle of the screw 9 is larger than the gap between the outer circle of the screw limiting spacer 8 and the inner hole of the spacer hole 52; when the rocker pin weld 7 swings, the outer circle of the screw limiting spacer 8 contacts the inner hole of the spacer hole 52 first, avoiding the shear force on the bolt caused by the contact between the inner hole of the screw limiting spacer 8 and the outer circle of the screw 9, thereby ensuring that the screw is not loosened during the operation of the traction device.

[0043] Preferably, in this embodiment, the above-mentioned installation frame welding base plate 5 is preferably a rectangular plate.

[0044] Preferably, in this embodiment, each spacer hole 52 and the corresponding threaded hole 53 form a hole-shaped structure with a thin upper end and a thick lower end.

[0045] Based on the above solution, each screw limiting spacer 8 is preferably a cylindrical structure with a thick lower end and a thin upper end, wherein the thick end abuts against the lower end of the swing pin weld 7 and the thin end extends into the corresponding spacer hole 52 .

[0046] This embodiment has a simple structure and a reasonable design, which ensures that the traction device is stably connected in the working environment, prevents the traction device from loosening due to vibration, impact or other external forces, avoids reducing work efficiency due to loosening and falling of the traction device during work, and avoids personal injury caused thereby.

[0047] Example 2

[0048] Based on Example 1, in this embodiment, the mounting frame weld 3 is an inverted U-shaped frame, and the mounting frame weld base plate 5 is fixedly installed at the lower open end of the inverted U-shaped frame; the upper end of the swing pin weld 7 passes through the mounting frame weld base plate 5 and extends into the inverted U-shaped frame.

[0049] This solution has a simple structure, and the structural design of the mounting frame weld 3 is reasonable, which is convenient for assembly and does not affect the swing of the swing rod 4.

[0050] Alternatively, the mounting frame weld 3 may also be in other suitable geometric shapes, such as an arc-shaped plate.

[0051] Example 3

[0052] On the basis of Example 2, in this embodiment, extension parts are respectively extended from both sides of the closed upper end of the inverted U-shaped frame, and fixing parts 10 for mounting the inverted U-shaped frame on the rear axle housing 1 are respectively installed on the two extension parts.

[0053] This solution has a simple structure and a reasonable design. The fixing member 10 can be used to realize the connection between the rear axle housing 1 and the inverted U-shaped frame, and the assembly is convenient.

[0054] Preferably, in this embodiment, each fixing member 10 includes a plurality of bolts, for example, two bolts, and a plurality of bolts are used to achieve a fixed connection between the rear axle housing 1 and the mounting frame weld 3 .

[0055] Alternatively, the upper end of the mounting frame weld 3 may be directly welded to the rear axle housing 1 , but this solution is inconvenient for assembly and disassembly.

[0056] Example 4

[0057] On the basis of any one of Embodiments 2 to 3, in this embodiment, a reinforcing plate 11 is horizontally fixedly installed in the inverted U-shaped frame body, and the upper end of the swing pin weld 7 passes through the reinforcing plate 11.

[0058] The reinforcing plate 11 is reasonably arranged to further enhance the strength of the entire installation frame weld 3 and extend its service life.

[0059] Example 5

[0060] On the basis of the above embodiments, in this embodiment, the swing pin weld 7 is an inverted T-shaped rod structure, and U-shaped openings are provided on both sides of its lower end; the number of the screws 9 is two, and the two screws 9 are stuck in the two U-shaped openings.

[0061] The shape of the pendulum pin welding joint 7 is reasonably designed, which is convenient for assembling various components.

[0062] Preferably, in this embodiment, the above-mentioned rocker pin weld 7 is formed by splicing a vertical portion arranged vertically and a horizontal portion arranged horizontally, and the lower end of the vertical portion is fixedly connected to the center of the horizontal portion.

[0063] The vertical portion is in a cylindrical structure, and the horizontal portion is in a rectangular plate structure.

[0064] Example 6

[0065] On the basis of the above embodiments, in this embodiment, a swing pin hole 51 for the swing pin welding 7 to pass through is provided on the welding bottom plate 5 of the mounting frame.

[0066] This solution has a simple structure, and the swing pin hole 51 is reasonably arranged, which is convenient for assembling the swing pin welding 7.

[0067] Preferably, in this embodiment, the rocker pin hole 51 is preferably a circular hole.

[0068] Example 7

[0069] Based on the above embodiments, Figure 5 As shown, this embodiment also provides a traction device, including a rear axle housing 1, and also includes the anti-loosening structure and the rocker arm 4 as described above, the mounting frame weld 3 is fixedly installed on the rear axle housing 1; one end of the rocker arm 4 is rotatably mounted on one end of the rocker pin weld 7, and the other end is used to connect and tow an agricultural machine.

[0070] Based on the above solution, the rear axle housing 1 is fixedly mounted on the frame of the tractor.

[0071] The present embodiment also provides a traction device, which has a simple structure and a reasonable design, ensuring that the traction device is stably connected in a working environment, preventing the traction device from loosening due to vibration, impact or other external forces, avoiding reduced work efficiency due to loosening and falling of the traction device during work, and avoiding personal injury caused thereby.

[0072] Example 8

[0073] On the basis of Embodiment 7, this embodiment further includes a towing mechanism 2, which is fixedly mounted on the rear axle housing 1 and is used to connect and tow a second agricultural implement.

[0074] The scheme has a simple structure and a reasonable design. The towing mechanism 2 can be used to connect the agricultural implement 2, which is convenient for performing corresponding operations and the operation is convenient.

[0075] Preferably, in this embodiment, the towing mechanism 2 is connected with a hook, and the hook is used to connect the second agricultural implement.

[0076] In addition, the connection between the above-mentioned towing mechanism 2 and the other end of the swing arm 4 and the corresponding agricultural machinery adopts the existing technology, so it will not be described in detail here.

[0077] Example 9

[0078] On the basis of Example 8, in this embodiment, a towing support plate 6 is fixedly connected to the lower end of the towing mechanism 2, and an area for the rocker bar 4 to pass through is enclosed between the towing support plate 6 and the towing mechanism 2.

[0079] This solution has a simple structure and a reasonable design. The area enclosed by the towing support plate 6 and the towing mechanism 2 is used to support the swing rod 4, thereby increasing the stability and strength of the swing rod 4, preventing the swing rod 4 from breaking, and extending its service life.

[0080] Preferably, in this embodiment, the above-mentioned towing support plate 6 is preferably a rectangular plate, and its two ends are fixedly connected to the two sides of the lower end of the towing mechanism 2 through vertically arranged columns.

[0081] Example 10

[0082] On the basis of the above embodiments, this embodiment further provides a tractor, comprising the traction device as described above.

[0083] The present embodiment also provides a tractor with a simple structure and reasonable design, which ensures that the traction device is stably connected in the working environment, prevents the traction device from being loosened due to vibration, impact or other external forces, avoids the traction device from loosening and falling off during work, reduces work efficiency, and avoids personal injury caused by it.

[0084] The working principle of the utility model is as follows:

[0085] During operation, the entire traction device is installed on the tractor, and the towing mechanism 2 and the other end of the swing arm 4 are connected to the corresponding agricultural implement to perform the corresponding operation;

[0086] During operation, the traction rod (i.e., the rocker arm 4) is subjected to axial tension, and the rocker pin weld 7 may swing left and right under the force, because the gap between the inner hole of the screw limiting spacer 8 and the outer circle of the screw 9 is larger than the gap between the outer circle of the screw limiting spacer 8 and the inner hole of the spacer hole 52; when the rocker pin weld 7 swings, the outer circle of the screw limiting spacer 8 contacts the inner hole of the spacer hole 52 first, avoiding the shear force on the bolt caused by the contact between the inner hole of the screw limiting spacer 8 and the outer circle of the screw 9, thereby ensuring that the screw is not loosened during the operation of the traction device.

[0087] The utility model designs a traction device anti-loosening structure, the main purpose of which is to ensure the traction device is stably connected in a working environment, prevent the traction device from being loosened due to vibration, impact or other external forces, avoid reducing work efficiency due to loosening and falling of the traction device during work, and avoid personal injury caused thereby.

[0088] In the utility model, the installation frame welding and the swing pin welding are connected by bolts, which are convenient for disassembly and assembly and are easy to install and maintain. In addition, the screw limiting spacer is used to effectively solve the loosening of the bolts caused during the working process of the traction device. Moreover, the overall structure is simple and the cost is low.

[0089] The advantages of the utility model are:

[0090] 1. The structure is simple and easy to operate;

[0091] 2. This structure effectively solves the problem of bolt loosening during the working process of the traction device, improves the working efficiency of the tractor, and at the same time improves safety, avoiding personal injury caused by the traction device falling off during the working process;

[0092] 3. The structure has stable and reliable performance and long service life.

[0093] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0094] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0095] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An anti-loosening structure, characterized in that: The invention comprises a mounting frame weld (3), a mounting frame weld bottom plate (5) and a swing pin weld (7), wherein the mounting frame weld bottom plate (5) is fixedly mounted on the lower end of the mounting frame weld (3); the upper end of the swing pin weld (7) passes through the mounting frame weld bottom plate (5), and the lower end of the swing pin weld (7) is fixedly connected to the mounting frame weld bottom plate (5) via a plurality of screws (9), and the upper ends of the plurality of screws (9) respectively extend into a plurality of threaded holes (53) on the mounting frame weld bottom plate (5) and are Threaded connection; a plurality of spacer holes (52) coaxially distributed with the plurality of threaded holes (53) are provided on the welding base plate (5) of the installation frame; a plurality of screws (9) are respectively sleeved with screw limiting spacers (8); one end of the plurality of screw limiting spacers (8) respectively extends into the plurality of spacer holes (52); a gap between the inner hole of the screw limiting spacer (8) and the outer circle of the screw (9) is larger than a gap between the outer circle of the screw limiting spacer (8) and the inner hole of the spacer hole (52).

2. The anti-loosening structure according to claim 1, characterized in that: The installation frame weld (3) is an inverted U-shaped frame body, and the installation frame weld bottom plate (5) is fixedly installed at the lower open end of the inverted U-shaped frame body; the upper end of the swing pin weld (7) passes through the installation frame weld bottom plate (5) and then extends into the inverted U-shaped frame body.

3. The anti-loosening structure according to claim 2, characterized in that: Extension parts extend from both sides of the closed upper end of the inverted U-shaped frame, and fixing parts (10) for mounting the inverted U-shaped frame on the rear axle housing (1) are respectively installed on the two extension parts.

4. The anti-loosening structure according to claim 2, characterized in that: A reinforcing plate (11) is horizontally fixedly installed in the inverted U-shaped frame body, and the upper end of the swing pin weld (7) passes through the reinforcing plate (11).

5. The anti-loosening structure according to any one of claims 1 to 4, characterized in that: The swing pin weld (7) is an inverted T-shaped rod structure, and two sides of its lower end are oppositely provided with U-shaped openings; the number of the screws (9) is two, and the two screws (9) are stuck in the two U-shaped openings.

6. The anti-loosening structure according to any one of claims 1 to 4, characterized in that: The installation frame welding bottom plate (5) is provided with a swing pin hole (51) for the swing pin welding (7) to pass through.

7. A traction device, comprising a rear axle housing (1), characterized in that: It also includes an anti-loosening structure and a rocker arm (4) as described in any one of claims 1 to 6, wherein the mounting frame weld (3) is fixedly mounted on the rear axle housing (1); one end of the rocker arm (4) is rotatably mounted on one end of the rocker pin weld (7), and the other end is used to connect and tow an agricultural implement.

8. The traction device according to claim 7, characterized in that: It also comprises a towing mechanism (2), which is fixedly mounted on the rear axle housing (1) and is used for connecting and towing agricultural machinery two.

9. The traction device according to claim 8, characterized in that: A towing support plate (6) is fixedly connected to the lower end of the towing mechanism (2), and an area for the swing rod (4) to pass through is enclosed between the towing support plate (6) and the towing mechanism (2).

10. A tractor, characterized in that: Comprising a traction device as described in any one of claims 7-9.

Images