Welding support for tractor and tractor

Abstract

The welding support for the tractor comprises a bridge connecting plate, a bottom plate and a middle supporting frame, the middle supporting frame comprises an inner side supporting plate, a middle supporting plate and an outer side supporting plate, and the inner side supporting plate, the middle supporting plate and the outer side supporting plate are symmetrically arranged in the length direction of the two sides with the center as the symmetry axis. A vertical hinge seat for mounting a tractor suspension lower pull rod is formed between the middle supporting plate and the outer side supporting plate; a transverse hinge block used for installing a swing type pull rod of a tractor is arranged between the two inner side supporting plates. The bridge connecting plate and the bottom plate are welded and fixedly connected through the inner side supporting plate, the middle supporting plate and the outer side supporting plate to form a box body structure. According to the utility model, the manufacturing process of the support is simplified in a welding mode, the reliability and safety of the support structure are enhanced, and the assembly efficiency and the maintenance convenience are improved.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery technology, specifically relating to a welded support for a tractor and a tractor. Background Technology

[0002] The bearings in traditional tractor working devices are usually cast in one piece. The castings themselves are not easy to maintain, and if a part is damaged, the whole thing must be replaced. Secondly, the entire manufacturing process requires the development of special molds for the casting bearings, which results in a long production cycle and high cost. When changing to a rear axle of a different horsepower range, the molds need to be modified or even redeveloped. The dimensions of the casting bearings cannot be arbitrarily changed with the change of axle or the change of the three-point suspension opening size.

[0003] The information disclosed in the above background section is only intended to enhance the understanding of the overall background of this utility model, and should not be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art. Summary of the Invention

[0004] The purpose of this utility model is to provide a welded support for a tractor and a tractor, which simplifies the support manufacturing process, enhances the reliability and safety of the support structure, and improves assembly efficiency and maintenance convenience.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A welded support for a tractor includes: a bridge connecting plate, a base plate, and an intermediate support frame. The intermediate support frame includes an inner support plate, a middle support plate, and an outer support plate arranged symmetrically along both sides of the center. A vertical hinge seat for mounting a tractor suspension lower lever is formed between the middle support plate and the outer support plate. A transverse hinge block for mounting a tractor swing lever is provided between the two inner support plates. The bridge connecting plate and the base plate are welded and fixedly connected by the inner support plate, the middle support plate, and the outer support plate to form a box structure.

[0007] Specifically, the bridge connecting plate is provided with upper bolt mounting holes, and the base plate is provided with lower bolt mounting holes corresponding to the upper bolt mounting holes of the bridge connecting plate.

[0008] Specifically, it also includes bushings, which are located between the inner support plate and the middle support plate. The upper and lower ends are welded to the bridge connecting plate and the base plate at the corresponding positions of the upper bolt mounting holes and the lower bolt mounting holes, respectively.

[0009] Specifically, the bridge connecting plate is also provided with asymmetrical positioning pin holes next to the upper bolt mounting holes.

[0010] Specifically, the outer support plate is also provided with a pin limit threaded hole.

[0011] Specifically, the bridge connecting plate has inner right angles on both sides, the middle support plate and the outer support plate have steps, and the inner right angle of the bridge connecting plate is engaged on the step surface of the middle support plate and the outer support plate; a first clearance groove is provided in the middle of the bridge connecting plate corresponding to the transverse hinge block area.

[0012] Specifically, the base plate has a second clearance groove on both sides corresponding to the vertical hinge seat, and a pin hole and a weight reduction groove in the middle of the base plate corresponding to the horizontal hinge block.

[0013] Specifically, the inner support plate is provided with coaxial process holes for welding.

[0014] Specifically, a limit plate is also provided between the two inner support plates, and the limit plate is provided with a long horizontal hole for the tractor swing rod to pass through.

[0015] This utility model also discloses a tractor, which includes the welded support described above.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This utility model tractor welding support adopts a box-shaped structure assembled by welding, which has good bending and torsional resistance. Moreover, the welding manufacturing process is simpler than the casting process and does not require the development of special molds.

[0018] Compared with cast supports, this utility model does not require the development of special mold manufacturing processes, saving the cost of casting molds and complex manufacturing processes, and has a shorter production cycle and lower cost.

[0019] This invention provides flexible and varied installation points, allowing other working devices to be installed at corresponding points, thus improving adaptability, assembly efficiency, and ease of maintenance. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a welded support structure for a tractor according to the present invention.

[0021] Figure 2 This is an exploded view of a welded support for a tractor according to the present invention.

[0022] Figure 3 This utility model provides a schematic diagram of the installation of a welded support for a tractor.

[0023] In the diagram, 1-bridge connecting plate; 2-base plate; 3-inner support plate; 4-middle support plate; 5-outer support plate; 6-lateral hinge block; 7-upper bolt mounting hole; 8-lower bolt mounting hole; 9-shaft sleeve; 10-locating pin hole; 11-pin limit threaded hole; 12-inner right angle; 13-step; 14-first clearance groove; 15-second clearance groove; 16-pin hole; 17-weight reduction groove; 18-coaxial process hole for welding; 19-limiting plate; 20-tractor suspension lower tie rod; 21-tractor swing tie rod; 22-welded support. Detailed Implementation

[0024] To explain the technical content, objectives, and effects of this utility model in detail, the following description is provided in conjunction with embodiments and accompanying drawings. In the description of these embodiments, it should be understood that terms indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this embodiment and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Example 1

[0026] The technical solution adopted in this embodiment is a welded support for a tractor, such as... Figure 1-2 As shown, it mainly includes a bridge connecting plate 1, a base plate 2, an intermediate support frame, and a bushing 9.

[0027] Figure 2 As shown, the bridge connecting plate 1 is provided with upper bolt mounting holes 7, and an asymmetrical positioning pin hole 10 is also provided on the bridge connecting plate 1 next to the upper bolt mounting holes 7. Inner right angles 12 are provided on both sides of the bridge connecting plate, and a first clearance groove 14 is provided in the middle area of ​​the bridge connecting plate 1.

[0028] refer to Figure 2 The base plate 2 shown has lower bolt mounting holes 8 corresponding to the upper bolt mounting holes 7 of the bridge connecting plate 1. Second clearance grooves 15 are provided on both sides of the base plate 2, and pin holes 16 and weight-reducing grooves 17 are provided in the middle of the base plate 2 corresponding to the transverse hinge block 6.

[0029] refer to Figure 2 The intermediate support frame shown includes an inner support plate 3, a middle support plate 4, and an outer support plate 5, arranged symmetrically along the length of both sides of the center. Wherein:

[0030] A vertical hinge seat for mounting the tractor suspension lower lever 20 is formed between the middle support plate 4 and the outer support plate 5. The second clearance groove 15 of the base plate 2 corresponds to the vertical hinge seat as the vertical movement clearance range for mounting the tractor suspension lower lever 20. The outer support plate 5 is also provided with a pin limit threaded hole 11 as the limit of the hinge.

[0031] A transverse hinge block 6 for mounting a tractor swing rod 21 is provided between the two inner support plates 3. A limit plate 19 is also provided between the two inner support plates 3, and the limit plate 19 has a long transverse hole for the tractor swing rod 21 to pass through. A first clearance groove 14 is correspondingly provided at the corresponding transverse hinge block 6 for easy installation from above. The inner support plate 3 is provided with a coaxial process hole 18 for welding to facilitate coaxial welding.

[0032] refer to Figure 2 The bushing 9 shown is located between the inner support plate 3 and the middle support plate 4, with its upper and lower ends corresponding to the upper bolt mounting holes 7 and the lower bolt mounting holes 8, respectively. In this embodiment, there are multiple bolt mounting holes, arranged along the width direction of the bridge connecting plate 1 and the bottom plate 2, and the bushing 9 is positioned between the outermost corresponding bolt mounting holes on the bottom support plate 2.

[0033] Finally, the bridge connecting plate 1 and the bottom plate 2 are welded and fixedly connected to form a box structure through the inner support plate 3, the middle support plate 4, the outer support plate 5, and the bushing 9. The middle support plate 4 and the outer support plate 5 are provided with steps 13, and the inner right angle 12 of the bridge connecting plate 1 is engaged on the step 13 surface of the middle support plate 4 and the outer support plate 5 as a pre-positioning for welding.

[0034] In this embodiment, the welded support, through the rational layout and design of components such as the bridge connecting plate, base plate, and intermediate support frame, achieves a stable connection and flexible movement of the tractor suspension system components. The avoidance design, limiting function, and bushings enhance the system's adaptability and durability. Meanwhile, the box structure and welded pre-positioning have good bending and torsional resistance, and the welding manufacturing process is simpler than casting, eliminating the need for specialized molds. This structural design is suitable for complex operating environments, ensuring the efficient and stable operation of the suspension system.

[0035] Example 2

[0036] In this embodiment, the welded support 22 of Embodiment 1 is installed on the suspension of the tractor, such as... Figure 3 As shown, after the entire support is welded together, the two lower pull rods of the three-point suspension can be fixed at both ends by pins. The swing pull rod of the agricultural implement is inserted into the long horizontal hole on the limiting plate 19 in the middle. Then, the hole on the swing pull rod corresponds to the horizontal hinge block 6 and the pin hole 16 for installation. Finally, the asymmetrical positioning pin hole 10 on the upper end face of the welded support 22 is used to install the positioning pin. Then, it is connected to the tractor rear axle chassis by bolts through the upper bolt mounting hole 7 on the upper end face.

[0037] Although the present invention has been described in detail above with specific embodiments, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A welded support for a tractor, characterized in that, include: The bridge connecting plate (1), the base plate (2), and the intermediate support frame are provided. The intermediate support frame includes an inner support plate (3), a middle support plate (4), and an outer support plate (5) arranged symmetrically along both sides of the center. A vertical hinge seat for installing the tractor suspension lower lever (20) is formed between the middle support plate (4) and the outer support plate (5). A transverse hinge block (6) for installing the tractor swing lever (21) is provided between the two inner support plates (3). The bridge connecting plate (1) and the base plate (2) are fixedly connected by welding the inner support plate (3), the middle support plate (4), and the outer support plate (5) to form a box structure.

2. The welded support for a tractor according to claim 1, characterized in that, The bridge connecting plate (1) is provided with an upper bolt mounting hole (7), and the base plate (2) is provided with a lower bolt mounting hole (8) corresponding to the upper bolt mounting hole (7) of the bridge connecting plate (1).

3. A welded support for a tractor according to claim 2, characterized in that, It also includes a bushing (9), which is located between the inner support plate (3) and the middle support plate (4). The upper and lower ends are welded together with the bridge connecting plate (1) and the base plate (2) corresponding to the upper bolt mounting hole (7) and the lower bolt mounting hole (8), respectively.

4. A welded support for a tractor according to claim 1, characterized in that, An asymmetrical positioning pin hole (10) is also provided on the bridge connecting plate (1) next to the upper bolt mounting hole (7).

5. A welded support for a tractor according to claim 1, characterized in that, The outer support plate (5) is also provided with a pin limit threaded hole (11).

6. A welded support for a tractor according to claim 1, characterized in that, The bridge connecting plate has inner right angles (12) on both sides, and the middle support plate (4) and the outer support plate (5) have steps (13). The inner right angle (12) of the bridge connecting plate (1) is engaged on the step (13) surface of the middle support plate (4) and the outer support plate (5). The middle part of the bridge connecting plate (1) is provided with a first clearance groove (14) corresponding to the transverse hinge block (6) area.

7. A welded support for a tractor according to claim 1, characterized in that, The bottom plate (2) has a second clearance groove (15) on both sides corresponding to the vertical hinge seat, and a pin hole (16) and a weight reduction groove (17) are provided in the middle of the bottom plate (2) corresponding to the horizontal hinge block (6).

8. A welded support for a tractor according to claim 1, characterized in that, The inner support plate (3) is provided with a welding processing coaxial process hole (18).

9. A welded support for a tractor according to claim 1, characterized in that, A limiting plate (19) is also provided between the two inner support plates (3), and the limiting plate (19) is provided with a long horizontal hole for the tractor swing rod (21) to pass through.

10. A tractor, characterized in that, Includes the welded support as described in any one of claims 1-9.

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