Crawler belt buffering and damping device of excavation type loader

Abstract

The utility model discloses a crawler belt buffering and damping device of an excavation type loader, which relates to the technical field of damping devices and particularly comprises a third supporting arm rotationally connected with a roller, a hydraulic spring buffer is rotationally connected to the other end of the third supporting arm, and a second supporting arm is rotationally connected to the top of the hydraulic spring buffer. Hydraulic telescopic rods are rotationally connected to the tops of the ends, away from the hydraulic spring buffers, of the second supporting arms; a second mounting seat is fixedly connected to the bottom of the second supporting arm, the third supporting arm is connected with the roller through a connecting shaft, a first supporting arm is fixedly connected to the side, close to the connecting shaft, of the third supporting arm, and a V-shaped structure is formed between the first supporting arm and the third supporting arm. According to the device, the tension degree between the roller and the crawler belt can be adjusted, meanwhile, generated pressure can be buffered, the structure is simple, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of shock absorbing devices, in particular to a crawler buffer shock absorbing device for an excavator loader. Background Art

[0002] Backhoe loaders are one of the important construction machinery in engineering construction. Backhoe loaders can not only perform excavation operations, but also transport excavated materials. Compared with single-function equipment (such as excavators), they are more efficient and therefore more practical, and thus have been more widely used.

[0003] Among them, crawler excavators have a wide range of applications. However, due to the poor shock absorption effect of the rollers in the crawler, the rollers are easily damaged after long-term use. At the same time, the tension between the rollers and the crawler is not easy to adjust, which can easily cause the crawler to fall off, bringing great safety hazards to the processing operation. For this reason, we propose a crawler buffer shock absorption device for excavators. Utility Model Content

[0004] In view of the poor shock absorption effect of the rollers in the existing crawler tracks, the rollers are easily damaged after long-term use, and the tension between the rollers and the crawler tracks is difficult to adjust, which easily leads to the crawler tracks falling off. The utility model provides a crawler track buffering and shock absorbing device for an excavator loader, which has the advantages of being able to buffer the generated pressure, not only having a simple structure but also improving the practicability of the device, thereby solving the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A crawler buffer and shock absorbing device for an excavator loader comprises a third support arm rotatably connected to a roller, a hydraulic spring buffer is rotatably connected to the other end of the third support arm, a second support arm is rotatably connected to the top of the hydraulic spring buffer, and a hydraulic telescopic rod is rotatably connected to the top of one end of the second support arm away from the hydraulic spring buffer;

[0007] The bottom of the second support arm is fixedly connected to the second mounting seat, the third support arm is connected to the roller through a connecting shaft, and the side of the third support arm close to the connecting shaft is fixedly connected to the first support arm, forming a V-shaped structure between the first support arm and the third support arm.

[0008] Optionally, the top of the second support arm is fixedly connected to a first articulated seat, and one end of the hydraulic telescopic rod is rotatably connected to the first articulated seat.

[0009] Optionally, the other end of the hydraulic telescopic rod is fixedly connected to a first mounting seat.

[0010] Optionally, a third hinge seat is fixedly connected to the bottom surface of the second support arm, and the upper end of the hydraulic spring buffer is rotatably connected to the third hinge seat.

[0011] Optionally, a second hinged seat is fixedly connected to one end of the third support arm close to the hydraulic spring buffer, and the lower end of the hydraulic spring buffer is rotatably connected to the second hinged seat.

[0012] Compared with the prior art, the utility model drives the second support arm to rotate around the second rotating shaft through the hydraulic telescopic rod, and the bottom of the second support arm can drive the roller to rotate along the first rotating shaft, thereby realizing the adjustment of the tension between the roller and the crawler track, and the arranged hydraulic spring buffer can buffer the generated pressure, which not only has a simple structure but also improves the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The structure of the utility model is shown in FIG. Figure 1 .

[0014] Figure 2 The structure of the utility model is shown in FIG. Figure 2 .

[0015] Figure 3 It is a schematic diagram of the cooperation between the utility model and the crawler.

[0016] In the figure: 1. first mounting seat; 2. hydraulic telescopic rod; 3. third articulated seat; 4. first support arm; 5. second mounting seat; 6. second support arm; 7. first articulated seat; 8. hydraulic spring buffer; 9. third support arm; 10. connecting shaft; 11. roller; 12. second articulated seat; 13. first rotating shaft; 14. second rotating shaft. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figures 1 to 3 The utility model provides a technical solution: a crawler buffer and shock absorbing device for an excavator loader, comprising a third support arm 9 rotatably connected to a roller 11, such as Figure 1As shown, the third support arm 9 is connected to the roller 11 through the connecting shaft 10, and the third support arm 9 is fixedly connected to the first support arm 4 on one side close to the connecting shaft 10, and a V-shaped structure is formed between the first support arm 4 and the third support arm 9. In actual use, the first support arm 4 and the third support arm 9 can adopt an integrated structure, which can effectively improve the overall supporting force and strength, thereby ensuring the normal use of the roller 11.

[0019] like Figure 2 , 3 As shown, the other end of the third support arm 9 is rotatably connected to a hydraulic spring buffer 8, the end of the third support arm 9 close to the hydraulic spring buffer 8 is fixedly connected to a second articulated seat 12, the lower end of the hydraulic spring buffer 8 is rotatably connected to the second articulated seat 12, the top of the hydraulic spring buffer 8 is rotatably connected to the second support arm 6, the bottom surface of the second support arm 6 is fixedly connected to the third articulated seat 3, and the upper end of the hydraulic spring buffer 8 is rotatably connected to the third articulated seat 3.

[0020] like Figure 2 , 3 As shown, the top of one end of the second support arm 6 away from the hydraulic spring buffer 8 is rotatably connected to the hydraulic telescopic rod 2, the top of the second support arm 6 is fixedly connected to the first articulated seat 7, one end of the hydraulic telescopic rod 2 is rotatably connected to the first articulated seat 7, the other end of the hydraulic telescopic rod 2 is fixedly connected to the first mounting seat 1, and the bottom of the second support arm 6 is fixedly connected to the second mounting seat 5.

[0021] In summary, the crawler buffer shock absorbing device of the excavator loader, when in use, Figure 3 As shown, the top of the first support arm 4 is connected to the travel frame ( Figure 3 The second mounting base 5 is rotatably connected to the traveling frame through the second rotating shaft 14, so that the roller 11 is rotatably connected to the crawler ( Figure 3 The crawler generates pressure on the roller 11 during the walking process, and the hydraulic spring buffer 8 provided can buffer the generated pressure, thereby achieving a shock absorbing effect;

[0022] Long-term use causes the tension between the track and the roller 11 to change, and the tension needs to be adjusted, such as Figure 3 As shown, the hydraulic telescopic rod 2 is connected to the controller on the loader. The controller controls the hydraulic telescopic rod 2 to extend or retract, driving the second support arm 6 to rotate around the second rotating shaft 14. The bottom of the second support arm 6 can drive the roller 11 to rotate along the first rotating shaft 13, so as to adjust the tension between the roller 11 and the crawler track. The utility model not only effectively plays a shock-absorbing role, but also can quickly adjust the tension.

[0023] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply 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 of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crawler track buffering and shock absorbing device for an excavator loader, characterized in that: It comprises a third support arm (9) rotatably connected to a roller (11); the other end of the third support arm (9) is rotatably connected to a hydraulic spring buffer (8); the top of the hydraulic spring buffer (8) is rotatably connected to a second support arm (6); and the top of one end of the second support arm (6) away from the hydraulic spring buffer (8) is rotatably connected to a hydraulic telescopic rod (2); The bottom of the second support arm (6) is fixedly connected to the second mounting seat (5), the third support arm (9) is connected to the roller (11) via a connecting shaft (10), and the side of the third support arm (9) close to the connecting shaft (10) is fixedly connected to the first support arm (4), and a V-shaped structure is formed between the first support arm (4) and the third support arm (9).

2. The crawler track buffering and shock absorbing device of an excavator loader according to claim 1, characterized in that: The top of the second support arm (6) is fixedly connected to a first hinge seat (7), and one end of the hydraulic telescopic rod (2) is rotatably connected to the first hinge seat (7).

3. The crawler track buffering and shock absorbing device of an excavator loader according to claim 2, characterized in that: The other end of the hydraulic telescopic rod (2) is fixedly connected to a first mounting seat (1).

4. The crawler track buffering and shock absorbing device of an excavator loader according to claim 1, characterized in that: A third hinge seat (3) is fixedly connected to the bottom surface of the second support arm (6), and the upper end of the hydraulic spring buffer (8) is rotatably connected to the third hinge seat (3).

5. The crawler track buffering and shock absorbing device of an excavator loader according to claim 4, characterized in that: A second hinge seat (12) is fixedly connected to one end of the third support arm (9) close to the hydraulic spring buffer (8), and the lower end of the hydraulic spring buffer (8) is rotatably connected to the second hinge seat (12).

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