Bulldozer balance beam swing type suspension mechanism

Abstract

The utility model provides a bulldozer balance beam swing formula suspension mechanism. Relate to bulldozer suspension technical field. The bulldozer balance beam swing formula suspension mechanism includes balance main beam, two balance secondary beams and two connecting beams, is set up with first pin hole on the balance main beam, two balance secondary beams all are set up with second pin hole, the both sides of balance main beam and the side of two balance secondary beams close to each other all are set up with swallow -tail insertion slot, both sides of two connecting beams all are fixedly installed with swallow -tail insertion strip, four swallow -tail insertion strips are inserted into four swallow -tail insertion slots respectively, and four swallow -tail insertion strips are respectively matched with four swallow -tail insertion slots. The utility model has the advantages of convenient disassembly and carrying, and can flexibly adjust the length according to actual assembly demand.

Description

Technical Field

[0001] This utility model relates to the field of bulldozer suspension technology, specifically a bulldozer balance beam swing suspension mechanism. Background Technology

[0002] Wetland bulldozers are specialized equipment for wetland protection, marshland development, and river dredging projects. Their operating sites are often complex conditions involving soft, muddy ground, placing stringent demands on the equipment's grounding adaptability, driving stability, and terrain mobility. To address these operational needs, traditional bulldozers generally employ a balance beam swing suspension mechanism. This mechanism, through the slight swing of the balance beam, can flexibly adapt to uneven working surfaces, effectively distributing the machine's load and thus ensuring uniform track grounding, overall machine stability, and operational safety.

[0003] However, most existing balance beams adopt an integrated long structure design, which has obvious drawbacks: First, the integrated long strip structure is bulky, making it inconvenient for storage, stacking, and long-distance transportation; second, the pin holes on the integrated balance beam for connecting with the bulldozer main frame are fixed, and cannot be adaptively adjusted according to the actual installation spacing of the track plates on both sides of the bulldozer. This results in poor compatibility between the suspension mechanism and bulldozers of different specifications, making it difficult to meet the diverse matching needs of operating equipment.

[0004] Therefore, it is necessary to provide a new bulldozer balance beam swing suspension mechanism to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this utility model is to provide a bulldozer balance beam swing suspension mechanism that can be easily disassembled and carried, and whose length can be flexibly adjusted according to actual assembly needs.

[0006] To solve the above-mentioned technical problems, the bulldozer balance beam swing suspension mechanism provided by this utility model includes: a balance main beam, two balance secondary beams and two connecting beams. The balance main beam has a first pin hole, and the two balance secondary beams each have a second pin hole. Dovetail slots are provided on both sides of the balance main beam and on the side of the two balance secondary beams that are close to each other. Dovetail inserts are fixedly installed on both sides of the two connecting beams. The four dovetail inserts are respectively inserted into the four dovetail slots, and the four dovetail inserts are respectively adapted to the four dovetail slots.

[0007] Furthermore, two connecting plates are fixedly installed at the top and bottom of each of the two connecting beams by bolts. The four connecting plates close to the main balancing beam are fixedly connected to the main balancing beam by bolts, and the four connecting plates away from the main balancing beam are fixedly connected to the corresponding secondary balancing beam by bolts.

[0008] Furthermore, each of the four dovetail slots has a wear-resistant layer on its inner wall, and each of the four dovetail inserts is in contact with the corresponding wear-resistant layer.

[0009] Furthermore, mounting supports are fixedly installed on the top of both of the aforementioned balance sub-beams.

[0010] Furthermore, an arc-shaped connecting piece is fixedly installed at the bottom of the main balancing beam by bolts, and an arc-shaped wear-resistant strip is fixedly installed on the arc-shaped connecting piece. A first connecting box is fixedly installed at the bottom of each of the two secondary balancing beams. A first connecting strip is fixedly installed in each of the two first connecting boxes by bolts, and a first wear-resistant pad is fixedly installed at the bottom of each of the two first connecting strips. A second connecting box is fixedly installed at the bottom of each of the two connecting beams. A second connecting strip is fixedly installed in each of the two second connecting boxes by bolts, and a second wear-resistant pad is fixedly installed at the bottom of each of the two second connecting strips.

[0011] Furthermore, the wear-resistant layer, the first wear-resistant pad, and the second wear-resistant pad are all made of wear-resistant rubber material.

[0012] Compared with related technologies, the bulldozer balance beam swing suspension mechanism provided by this utility model has the following advantages: I. This utility model adopts a modular splicing design of a balanced main beam, a balanced secondary beam and a connecting beam. Through the cooperation of dovetail inserts and dovetail slots and the fastening connection of connecting sheets, it can be quickly disassembled and assembled, reducing the overall volume and greatly improving the flexibility of warehousing and stacking and the convenience of long-distance transportation.

[0013] Second, this utility model can replace the connecting beams of different lengths according to the actual installation spacing of the bulldozer track plates, flexibly adjust the overall span of the balance beam, effectively improve the compatibility of the suspension mechanism with bulldozers of different specifications, and meet diverse assembly needs.

[0014] Third, this utility model utilizes the wear-resistant layer on the inner wall of the dovetail slot, the arc-shaped wear-resistant strip at the bottom of the main beam, the first wear-resistant pad at the bottom of the secondary beam, and the second wear-resistant pad at the bottom of the connecting beam to significantly reduce mechanical wear and extend service life. Attached Figure Description

[0015] Figure 1 A schematic diagram of the swing suspension mechanism for the bulldozer balance beam provided by this utility model; Figure 2 This is a frontal planar structural diagram of the present invention; Figure 3 This is a schematic diagram showing the disassembled state of the main balancing beam, the secondary balancing beam, and the connecting beam in this utility model; Figure 4 This is a schematic diagram of the oblique upward view of the main balancing beam in this utility model; Figure 5 This is a schematic diagram showing the disassembled state of the first connecting box and the first connecting strip, and the second connecting box and the second connecting strip in this utility model; Figure 6 This is a schematic diagram of the oblique upward view of the balance sub-beam in this utility model; Figure 7 This is a schematic diagram of the inclined upward view of the connecting beam in this utility model.

[0016] The following are the labeling elements in the diagram: 1. Main balancing beam; 2. Secondary balancing beam; 3. First pin hole; 4. Second pin hole; 5. Mounting support; 6. Connecting beam; 601. Dovetail slot; 602. Dovetail insert; 603. Connecting sheet metal; 604. Wear-resistant layer; 7. Arc-shaped connecting piece; 8. Arc-shaped wear-resistant strip; 9. First connecting box; 10. First connecting strip; 11. First wear-resistant pad; 12. Second connecting box; 13. Second connecting strip; 14. Second wear-resistant pad. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Please refer to the following: Figures 1-7 .

[0019] The bulldozer balance beam swing suspension mechanism includes: a main balance beam 1, two auxiliary balance beams 2, and two connecting beams 6. A first pin hole 3 is provided on the main balance beam 1, and a second pin hole 4 is provided on each of the two auxiliary balance beams 2. Mounting supports 5 are fixedly installed on the top of each of the two auxiliary balance beams 2, allowing connection to the track suspension assembly on the bulldozer. Dovetail slots 601 are provided on both sides of the main balance beam 1 and on the side of the two auxiliary balance beams 2 that are close to each other. Dovetail inserts 602 are fixedly installed on both sides of each of the two connecting beams 6. The four dovetail inserts 602 are respectively inserted into the four dovetail slots 601, and the four dovetail inserts 602 are... The four dovetail slots 601 are adapted to each other. In addition, in order to stably connect the connecting beam 6 with the main balance beam 1 and the secondary balance beam 2, two connecting plates 603 are fixedly installed on the top and bottom of the two connecting beams 6 by bolts. The four connecting plates 603 close to the main balance beam 1 are fixedly connected to the main balance beam 1 by bolts, and the four connecting plates 603 far from the main balance beam 1 are fixedly connected to the corresponding secondary balance beam 2 by bolts. At the same time, in order to reduce frictional wear between components, a wear-resistant layer 604 is provided on the inner wall of the four dovetail slots 601, and the four dovetail inserts 602 are all in contact with the corresponding wear-resistant layer 604.

[0020] In this embodiment, in order to reduce collisions between the main balance beam 1, the secondary balance beam 2, and the connecting beam 6 and the ground or debris on the ground, thereby improving service life, an arc-shaped connecting piece 7 is fixedly installed at the bottom of the main balance beam 1 by bolts, and an arc-shaped wear-resistant strip 8 is fixedly installed on the arc-shaped connecting piece 7. A first connecting box 9 is fixedly installed at the bottom of each of the two secondary balance beams 2, and a first connecting strip 10 is fixedly installed in each of the two first connecting boxes 9 by bolts. A first wear-resistant pad 11 is fixedly installed at the bottom of each of the two first connecting strips 10. A second connecting box 12 is fixedly installed at the bottom of each of the two connecting beams 6, and a second connecting strip 13 is fixedly installed in each of the two second connecting boxes 12 by bolts. A second wear-resistant pad 14 is fixedly installed at the bottom of each of the two second connecting strips 13. Furthermore, the wear-resistant layer 604, the first wear-resistant pad 11, and the second wear-resistant pad 14 are all made of wear-resistant rubber material.

[0021] The working principle of the bulldozer balance beam swing suspension mechanism provided by this utility model is as follows: During the structural assembly stage, the dovetail inserts 602 on both sides of the connecting beam 6 are respectively embedded into the dovetail slots 601 opened at the ends of the main balance beam 1 and the secondary balance beam 2, and the initial positioning is achieved by utilizing the meshing characteristics of the dovetail structure. Subsequently, the connecting beam 6 is fastened to the main balance beam 1 and the secondary balance beam 2 respectively by bolts through the connecting plates 603 at the top and bottom of the connecting beam 6, forming a stable overall balance beam structure. Moreover, this splicing design allows for the replacement of connecting beams 6 of different lengths according to actual assembly requirements, thereby adjusting the overall span of the balance beam and adapting to bulldozer main frames with different track plate spacings.

[0022] During bulldozing operations, the main balance beam 1 is hinged to the main frame of the bulldozer through the first pin hole 3, and the secondary balance beam 2 is connected to the track suspension assembly through the top mounting bracket 5. With the help of the rotational freedom of the hinge point, the main balance beam 1 and the secondary balance beam 2 can swing slightly to adapt to the complex working conditions of soft, muddy, and uneven wetlands, effectively distributing the load of the whole machine and ensuring the uniformity of track ground contact and the stability of the whole machine's driving.

[0023] To address the high-wear conditions of wetland operations, this mechanism incorporates a wear-resistant layer 604 on the inner wall of the dovetail slot 601, ensuring a tight fit between the dovetail insert 602 and the wear-resistant layer 604 to reduce frictional wear at the joints. Simultaneously, an arc-shaped wear-resistant strip 8 is installed at the bottom of the main balance beam 1 via an arc-shaped connecting piece 7. A first connecting strip 10 and a first wear-resistant pad 11 are assembled in the first connecting box 9 at the bottom of the secondary balance beam 2, and a second connecting strip 13 and a second wear-resistant pad 14 are assembled in the second connecting box 12 at the bottom of the connecting beam 6. This reduces direct frictional damage between the balance beam and ground debris, extending the mechanism's service life. Later, the arc-shaped wear-resistant strip 8, the first wear-resistant pad 11, and the second wear-resistant pad 14 can be replaced by removing the arc-shaped connecting piece 7, the first connecting strip 10, and the second connecting strip 13.

[0024] When warehousing or long-distance transportation is required, simply remove the bolts at the connecting sheet metal 603 to separate the main balance beam 1, the secondary balance beam 2, and the connecting beam 6, thereby reducing the overall volume and improving the space utilization rate of warehousing and stacking as well as the convenience of transportation.

[0025] Compared with related technologies, the bulldozer balance beam swing suspension mechanism provided by this utility model has the following advantages: I. This utility model adopts a modular splicing design of a balanced main beam 1, a balanced secondary beam 2 and a connecting beam 6. Through the cooperation of dovetail inserts 602 and dovetail slots 601 and the fastening connection of connecting sheet metal 603, it can be quickly disassembled and assembled, reducing the overall volume and greatly improving the flexibility of warehousing and stacking and the convenience of long-distance transportation.

[0026] Second, this utility model can replace the connecting beam 6 with different lengths and specifications according to the actual installation spacing of the bulldozer track plates, flexibly adjust the overall span of the balance beam, effectively improve the compatibility of the suspension mechanism with bulldozers of different specifications, and meet diverse assembly needs.

[0027] Third, this utility model utilizes the wear-resistant layer 604 on the inner wall of the dovetail slot 601, the arc-shaped wear-resistant strip 8 at the bottom of the main balance beam 1, the first wear-resistant pad 11 at the bottom of the secondary balance beam 2, and the second wear-resistant pad 14 at the bottom of the connecting beam 6 to significantly reduce mechanical wear and extend service life.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A bulldozer balance beam swing suspension mechanism, comprising a main balance beam, two auxiliary balance beams, and two connecting beams, characterized in that, The main balance beam has a first pin hole, and the two secondary balance beams each have a second pin hole. Dovetail slots are provided on both sides of the main balance beam and on the side of the two secondary balance beams that are close to each other. Dovetail inserts are fixedly installed on both sides of the two connecting beams. The four dovetail inserts are respectively inserted into the four dovetail slots, and the four dovetail inserts are respectively adapted to the four dovetail slots.

2. The bulldozer balance beam swing suspension mechanism according to claim 1, characterized in that, Two connecting plates are fixedly installed at the top and bottom of each of the two connecting beams by bolts. The four connecting plates close to the main balance beam are fixedly connected to the main balance beam by bolts, and the four connecting plates away from the main balance beam are fixedly connected to the corresponding secondary balance beam by bolts.

3. The bulldozer balance beam swing suspension mechanism according to claim 1, characterized in that, The inner walls of the four dovetail slots are provided with wear-resistant layers, and the four dovetail inserts are all in contact with the corresponding wear-resistant layers.

4. The bulldozer balance beam swing suspension mechanism according to claim 1, characterized in that, Mounting supports are fixedly installed on the top of both of the aforementioned balance sub-beams.

5. The bulldozer balance beam swing suspension mechanism according to claim 3, characterized in that, An arc-shaped connecting piece is fixedly installed at the bottom of the main balancing beam by bolts. An arc-shaped wear-resistant strip is fixedly installed on the arc-shaped connecting piece. A first connecting box is fixedly installed at the bottom of each of the two secondary balancing beams. A first connecting strip is fixedly installed in each of the two first connecting boxes by bolts. A first wear-resistant pad is fixedly installed at the bottom of each of the two first connecting strips. A second connecting box is fixedly installed at the bottom of each of the two connecting beams. A second connecting strip is fixedly installed in each of the two second connecting boxes by bolts. A second wear-resistant pad is fixedly installed at the bottom of each of the two second connecting strips.

6. The bulldozer balance beam swing suspension mechanism according to claim 5, characterized in that, The wear-resistant layer, the first wear-resistant pad, and the second wear-resistant pad are all made of wear-resistant rubber material.

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