Triangular crawler-type variable ground clearance chassis structure

Abstract

The utility model relates to the technical field of chassis, in particular to a triangular crawler-type variable ground clearance chassis structure which comprises two fixing frames, two triangular crawlers, two mounting rods and a mounting frame, the fixing frames are used for achieving the connecting and supporting effects, and the side faces of the tops of the two fixing frames are both rotationally connected with first connecting rods; the two sides of the side face of the first connecting rod are rotationally connected with second connecting rods, and a first hydraulic cylinder is arranged at the top of the first connecting rod. According to the ground clearance adjusting device, the first hydraulic cylinder is arranged at the top of the first connecting rod, the height of the mounting rod can be adjusted through stretching and retracting of the first hydraulic cylinder, and therefore the height of the chassis is adjusted, namely the functions of adjusting the ground clearance and leveling the chassis are achieved, and the ground clearance adjusting device adapts to different terrains in hilly and mountainous areas; the inclination angle of the chassis can be adjusted through stretching and retracting of the second hydraulic cylinder, the universality of the chassis structure can be improved, and the stability of mechanical operation is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chassis, in particular to a triangular crawler variable ground clearance chassis structure. Background Technique

[0002] Agricultural mechanization is the key grasp and basic support for promoting the modernization of agriculture and rural areas, and also provides strong support for ensuring the supply of important agricultural products such as grain and promoting farmers' income increase. In the agricultural planting production in hilly areas, due to the uneven terrain, large agricultural machines do not meet the needs of the plots. Small transmission agricultural machines or crawlers have poor adaptability to different terrains. Different road conditions have different requirements for the ground clearance of the chassis. And due to their own structural reasons, it is difficult to work normally in complex terrain areas, and related safety accidents such as rollover may occur, which is not conducive to agricultural planting production in hilly areas. Content of the Utility Model

[0003] The purpose of the utility model is to provide a triangular crawler variable ground clearance chassis structure to solve the problems put forward in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A triangular crawler variable ground clearance chassis structure includes two fixed frames, two triangular crawlers, two mounting rods, and a mounting frame;

[0006] The fixed frame is used to play a role in connection and support. One side of the top of each of the two fixed frames is rotatably connected with a first connecting rod. Both sides of one side of the first connecting rod are rotatably connected with a second connecting rod. A first hydraulic cylinder is arranged on the top of the first connecting rod. The bottom end and the top end of the first hydraulic cylinder are both rotatably connected with a first connecting seat. The top surface of the first connecting rod is fixedly connected with the bottom surface of the adjacent first connecting seat;

[0007] The two triangular crawlers are respectively fixedly connected to the ends of the two fixed frames. The two mounting rods are both rotatably connected to the adjacent two second connecting rods. The bottom surface of the mounting rod is fixedly connected with the top surface of the adjacent first connecting seat. The mounting frame is arranged on the tops of the two mounting rods.

[0008] Furthermore, a second hydraulic cylinder is rotatably connected to one side of the first connecting rod. The bottom end of the second hydraulic cylinder is rotatably connected with a second connecting seat fixedly connected to the side surface of the adjacent fixed frame.

[0009] Preferably, a mounting plate that contacts the top surface of the mounting rod is rotatably connected to the bottom of the inner side surface of the mounting frame.

[0010] Furthermore, a first gear ring fixedly connected to the bottom of the inner side of the installation frame is rotatably connected to the top surface of the installation plate. A power box is fixedly connected to the top surface of the installation plate. A power motor is arranged inside the power box. The output end of the power motor is drivingly connected to a transmission shaft. A worm is fixedly sleeved on the side surface of the transmission shaft. A rotating shaft is rotatably connected to the inner side surface of the power box. A worm gear meshing with the worm is fixedly sleeved on the side surface of the rotating shaft. An adjusting gear meshing with the first gear ring is fixedly sleeved on the bottom of the side surface of the rotating shaft.

[0011] Furthermore, a round rod is fixedly connected to the top surface of the installation plate. A second baffle fixedly connected to the top surface of the round rod is fixedly connected to the top surface of the power box. A first baffle rotatably connected to the side surface of the second baffle is arranged inside the installation frame.

[0012] Furthermore, four positioning rods rotatably connected to the bottom surface of the second baffle are rotatably connected to the top surface of the installation plate. A rectangular block is slidably connected to the inner side surface of the positioning rod. A lead screw threadedly connected to the inner side surface of the installation plate is fixedly connected to the bottom end of the rectangular block, and the lead screw is threadedly engaged with the inner side surface of the adjacent installation rod.

[0013] Furthermore, a connecting gear is fixedly sleeved on the side surface of the positioning rod. A rotating frame rotatably connected to the top surface of the first gear ring is rotatably connected to the bottom surface of the second baffle. A second gear ring meshing with the connecting gear is fixedly connected to the inner side surface of the rotating frame. A first stop block is fixedly connected to the top surface of the first gear ring. A second stop block is fixedly connected to the side surface of the rotating frame.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] By arranging a first hydraulic cylinder at the top of the first connecting rod, the first connecting rod and the installation rod at its top and the two second connecting rods can form a parallelogram. The installation rod can be supported by the first hydraulic cylinder, so as to support the machine installed in the installation frame. The height of the installation rod can be adjusted by the telescopic movement of the first hydraulic cylinder, so as to adjust the height of the chassis, that is, to adjust the ground clearance and realize the function of chassis leveling, so as to adapt to different terrains in hilly and mountainous areas. And the first connecting rod can be supported by the second hydraulic cylinder. By the telescopic movement of the second hydraulic cylinder, the inclination angle of the chassis can be adjusted, which is beneficial to improving the versatility of the chassis structure and the stability of mechanical operation, and is beneficial to meeting the various requirements of mechanical operation in hilly areas.

[0016] By fixedly connecting a first gear ring to the bottom of the inner side of the installation frame, the adjusting gear can be driven to rotate by the power motor. The adjusting gear can drive the first gear ring to rotate, so as to adjust the angle between the installation frame and the agricultural machine inside it as needed. And after the first stop block contacts the second stop block, the first gear ring can drive the rotating frame to rotate. The rotating frame can make the positioning rod rotate through the connecting gear, so that the lead screw is screwed out of the installation rod. At this time, the installation frame can be removed from the installation rod, which is convenient for the disassembly and maintenance of the chassis structure. Brief Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall structure of a triangular crawler variable ground clearance chassis structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the fixed frame structure in the present utility model;

[0019] Figure 3 is a schematic side view structure diagram of a connecting rod in the present utility model;

[0020] Figure 4 is a schematic diagram of the internal structure of the mounting frame in the present utility model;

[0021] Figure 5 is a schematic diagram of the mounting plate structure in the present utility model;

[0022] Figure 6 is a schematic diagram of the internal structure of the positioning rod in the present utility model.

[0023] In the figure: 1. Fixed frame; 11. Hydraulic cylinder 1; 12. Connecting rod 1; 13. Connecting rod 2; 14. Hydraulic cylinder 2; 2. Triangular crawler; 4. Mounting rod; 5. Mounting frame; 51. Baffle 1; 52. Tooth ring 1; 53. Stopper 1; 6. Mounting plate; 61. Round rod; 62. Baffle 2; 63. Rotating frame; 64. Tooth ring 2; 65. Stopper 2; 7. Power box; 71. Power motor; 72. Transmission shaft; 73. Worm; 74. Rotating shaft; 75. Adjusting gear; 8. Positioning rod; 81. Connecting gear; 82. Rectangular block; 83. Lead screw. Detailed Description of the Preferred Embodiment

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] Please refer to Figure 1-3 , in the embodiment of the present utility model, a triangular crawler variable ground clearance chassis structure includes two fixed frames 1, two triangular crawlers 2, two mounting rods 4, and a mounting frame 5;

[0026] The fixing frame 1 is used to play the role of connection and support. The fixing frame 1 is in a C shape. On the side of the top of the two fixing frames 1, a first connecting rod 12 is rotatably connected. On both sides of the side of the first connecting rod 12, a second connecting rod 13 is rotatably connected. On the top of the first connecting rod 12, a first hydraulic cylinder 11 is provided. Both the bottom end and the top end of the first hydraulic cylinder 11 are rotatably connected with a first connecting seat. The top surface of the first connecting rod 12 is fixedly connected to the bottom surface of the adjacent first connecting seat. The first hydraulic cylinder 11 is rotatably connected to the first connecting rod 12 and the mounting rod 4 through the first connecting seat. On the side of the first connecting rod 12, a second hydraulic cylinder 14 is rotatably connected. The bottom end of the second hydraulic cylinder 14 is rotatably connected with a second connecting seat fixedly connected to the side of the adjacent fixing frame 1. The second hydraulic cylinder 14 is rotatably connected to the fixing frame 1 through the second connecting seat. And the end of the movable end of the second hydraulic cylinder 14 is rotatably connected to the first connecting rod 12 through a shaft rod. In this way, the first connecting rod 12 can be supported by the second hydraulic cylinder 14, thereby restricting the angle of the first connecting rod 12;

[0027] Two triangular crawlers 2 are respectively fixedly connected to the ends of the two fixing frames 1. Both mounting rods 4 are rotatably connected to the adjacent two second connecting rods 13. The bottom surface of the mounting rod 4 is fixedly connected to the top surface of the adjacent first connecting seat. An installation frame 5 is arranged on the tops of the two mounting rods 4. An agricultural machine can be installed inside the installation frame 5. At the bottom of the inner side surface of the installation frame 5, a mounting plate 6 that contacts the top surface of the mounting rod 4 is rotatably connected.

[0028] Specifically, the first connecting rod 12, the mounting rod 4 on its top, and the two second connecting rods 13 can form a parallelogram. The mounting rod 4 can be supported by the first hydraulic cylinder 11, thereby supporting the agricultural machine installed in the installation frame 5. The height of the mounting rod 4 can be adjusted by the telescopic movement of the first hydraulic cylinder 11, thereby adjusting the height of the chassis, that is, realizing the adjustment of the ground clearance and the function of chassis leveling, so as to adapt to different terrains in hilly and mountainous areas. And the first connecting rod 12 can be supported by the second hydraulic cylinder 14. By the telescopic movement of the second hydraulic cylinder 14, the first connecting rod 12 can be tilted. At this time, the first connecting rod 12 can drive the mounting rod 4 to rotate through the second connecting rod 13, making the mounting rod 4 tilted and changing the angle of the installation frame 5. In this way, the tilt angle of the chassis can be adjusted, which is beneficial to improving the versatility of the chassis structure and the stability of mechanical operation, and is beneficial to meeting the various needs of mechanical operation in hilly areas. And when one of the triangular crawlers 2 encounters a convex or concave ground, the corresponding first hydraulic cylinder 11 can be telescoped, so that the height of one triangular crawler 2 can be adjusted separately, which is beneficial to maintaining the stability of the chassis when encountering an uneven road surface.

[0029] Embodiment 1

[0030] Such as Figure 4-5As shown, in this embodiment, a gear ring 52 rotatably connected to the top surface of the mounting plate 6 is fixedly connected to the bottom of the inner side surface of the mounting frame 5, a power box 7 is fixedly connected to the top surface of the mounting plate 6, a power motor 71 is arranged inside the power box 7, a fixing seat for supporting the power motor 71 is arranged inside the power box 7, a transmission shaft 72 is transmission-connected to the output end of the power motor 71, a worm 73 is fixedly sleeved on the side of the transmission shaft 72, a rotating shaft 74 is rotationally connected to the inner side surface of the power box 7, a worm wheel meshing with the worm 73 is fixedly sleeved on the side of the rotating shaft 74, and an adjusting gear 75 meshing with the gear ring 52 is fixedly sleeved on the bottom of the side of the rotating shaft 74;

[0031] The top surface of the mounting plate 6 is fixedly connected to a round rod 61, and the top surface of the round rod 61 is fixedly connected to a baffle plate 2 62 fixedly connected to the top surface of the power box 7. The mounting plate 6 can limit the position of the baffle plate 2 62 through the round rod 61, and a baffle plate 1 51 rotatably connected to the side of the baffle plate 2 62 is arranged inside the mounting frame 5. The baffle plate 1 51 can block the baffle plate 2 62 and the mounting plate 6.

[0032] During specific implementation, after the mounting plate 6 is connected to the top of the two mounting rods 4, the transmission shaft 72 can be driven to rotate by the power motor 71, and the transmission shaft 72 can drive the rotating shaft 74 to rotate through the worm 73 and the worm gear, and the rotating shaft 74 can drive the adjusting gear 75 to rotate, and the adjusting gear 75 can drive the gear ring 52 to rotate, and the gear ring 52 can drive the mounting frame 5 to rotate relative to the mounting plate 6, so that the angle of the mounting frame 5 and its internal machinery can be adjusted as needed.

[0033] like Figure 5-6 As shown, in the present embodiment, the top surface of the mounting plate 6 is rotatably connected to four positioning rods 8 rotatably connected to the bottom surface of the baffle plate 2 62, the inner surface of the positioning rod 8 is slidably connected to a rectangular block 82, the bottom end of the rectangular block 82 is fixedly connected to a screw rod 83 which is screwed together with the inner surface of the mounting plate 6, and the screw rod 83 is screwed together with the inner surface of the adjacent mounting rod 4, the screw rod 83 can be screwed into the mounting rod 4, so that the mounting rod 4 can be connected to the mounting plate 6 through the four screw rods 83, thereby limiting the angle of the mounting plate 6.

[0034] During specific implementation, the positioning rod 8 can be rotated, the positioning rod 8 can drive the rectangular block 82 to rotate, and the rectangular block 82 can drive the screw rod 83 to rotate, so that the screw rod 83 moves upward and disengages from the mounting rod 4. In this way, the mounting frame 5 can be removed from the mounting rod 4, which is convenient for disassembly and maintenance of the chassis structure.

[0035] Embodiment 2

[0036] Based on the first embodiment, Figure 4-6As shown, in this embodiment, a connecting gear 81 is fixedly sleeved on the side surface of the positioning rod 8. The bottom surface of the second baffle 62 is rotatably connected to a rotating frame 63 whose top surface is rotatably connected to the top surface of the first toothed ring 52. A second toothed ring 64 meshing with the connecting gear 81 is fixedly connected to the inner side surface of the rotating frame 63. A first stop block 53 is fixedly connected to the top surface of the first toothed ring 52, and a second stop block 65 is fixedly connected to the side surface of the rotating frame 63.

[0037] During specific implementation, when the adjusting gear 75 is driven by the power motor 71 to rotate, causing the first toothed ring 52 to rotate, the first toothed ring 52 can drive the first stop block 53 to rotate. When the first stop block 53 rotates beside the second stop block 65 and contacts the second stop block 65, the first toothed ring 52 can push the second stop block 65 to rotate through the first stop block 53, causing the rotating frame 63 to rotate. The rotating frame 63 can drive the second toothed ring 64 to rotate, and the second toothed ring 64 can drive the connecting gear 81 to rotate, thereby causing the positioning rod 8 to rotate. The positioning rod 8 can drive the lead screw 83 to rotate through the rectangular block 82, causing the lead screw 83 to screw out of the inside of the mounting rod 4.

[0038] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0039] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A triangular crawler type variable ground clearance chassis structure, characterized in that: include: Two fixing frames (1) are used for connecting and supporting the structure, the top side surfaces of the two fixing frames (1) are both rotatably connected to a connecting rod 1 (12), the sides of the connecting rod 1 (12) are both rotatably connected to a connecting rod 2 (13), a hydraulic cylinder 1 (11) is arranged on the top of the connecting rod 1 (12), the bottom end and the top end of the hydraulic cylinder 1 (11) are both rotatably connected to a connecting seat 1, and the top surface of the connecting rod 1 (12) is fixedly connected to the bottom surface of an adjacent connecting seat 1; Two triangular crawlers (2) are respectively fixedly connected to the ends of the two fixing frames (1); Two mounting rods (4) are both rotatably connected to two adjacent connecting rods (13), and the bottom surface of the mounting rod (4) is fixedly connected to the top surface of an adjacent connecting seat; The mounting frame (5) is arranged on the top of the two mounting rods (4).

2. The triangular crawler type variable ground clearance chassis structure according to claim 1 is characterized in that: The side of the connecting rod 1 (12) is rotatably connected to the hydraulic cylinder 2 (14), and the bottom end of the hydraulic cylinder 2 (14) is rotatably connected to the connecting seat 2 fixedly connected to the side of the adjacent fixing frame (1).

3. The triangular crawler type variable ground clearance chassis structure according to claim 1 is characterized in that: The bottom of the inner side surface of the installation frame (5) is rotatably connected to a mounting plate (6) that contacts the top surface of the installation rod (4).

4. The triangular crawler type variable ground clearance chassis structure according to claim 3 is characterized in that: The bottom of the inner side surface of the mounting frame (5) is fixedly connected to a gear ring (52) rotatably connected to the top surface of the mounting plate (6); the top surface of the mounting plate (6) is fixedly connected to a power box (7); a power motor (71) is arranged inside the power box (7); an output end of the power motor (71) is transmission-connected to a transmission shaft (72); a worm (73) is fixedly sleeved on the side surface of the transmission shaft (72); a rotating shaft (74) is rotatably connected to the inner side surface of the power box (7); a worm wheel meshing with the worm (73) is fixedly sleeved on the side surface of the rotating shaft (74); and an adjusting gear (75) meshing with the gear ring (52) is fixedly sleeved on the bottom of the side surface of the rotating shaft (74).

5. The triangular crawler type variable ground clearance chassis structure according to claim 4 is characterized in that: The top surface of the mounting plate (6) is fixedly connected to a round rod (61), the top surface of the round rod (61) is fixedly connected to a second baffle (62) fixedly connected to the top surface of the power box (7), and a first baffle (51) rotatably connected to the side of the second baffle (62) is provided inside the mounting frame (5).

6. The triangular crawler type variable ground clearance chassis structure according to claim 5 is characterized in that: The top surface of the mounting plate (6) is rotatably connected to four positioning rods (8) which are rotatably connected to the bottom surface of the second baffle plate (62); the inner side surface of the positioning rod (8) is slidably connected to a rectangular block (82); the bottom end of the rectangular block (82) is fixedly connected to a screw rod (83) which is screwed together with the inner side surface of the mounting plate (6); and the screw rod (83) is screwed together with the inner side surface of the adjacent mounting rod (4).

7. The triangular crawler type variable ground clearance chassis structure according to claim 6 is characterized in that: The side surface of the positioning rod (8) is fixedly sleeved with a connecting gear (81); the bottom surface of the second baffle plate (62) is rotatably connected to a rotating frame (63) rotatably connected to the top surface of the first gear ring (52); the inner side surface of the rotating frame (63) is fixedly connected to the second gear ring (64) meshing with the connecting gear (81); the top surface of the first gear ring (52) is fixedly connected to the first stopper (53); and the side surface of the rotating frame (63) is fixedly connected to the second stopper (65).

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