An excavator undercarriage with an auxiliary attachment mechanism

Abstract

The utility model relates to excavator chassis technical field, and disclose a kind of auxiliary fixing mechanism's excavator chassis, including frame, the both sides front end of frame is rotatably connected with support rod by bearing, and support rod is driven to rotate by servo motor installed on frame, the top and bottom of frame two sides are respectively welded with two first fixed block and second fixed block, the side of first fixed block and second fixed block is all set with fixed hole, the side of support rod is welded with third fixed block, the utility model is cooperated with the use of servo motor and guide component, power component, make screw rod drive fixed rod move to fixed hole, complete the fixing of support rod position, use electrical device to complete the rotation and fixed of support rod, liberate the labor of worker, when adjusting, just need to let worker observe in the safety place far from excavator to complete adjustment operation, improve the security of worker work.

Description

Technical Field

[0001] This utility model relates to the field of excavator chassis technology, and more specifically to an excavator chassis with an auxiliary fixing mechanism. Background Technology

[0002] Walking excavators are all-terrain, multi-functional engineering machines that achieve stable operation in complex terrains through a unique walking mechanism.

[0003] A search revealed Chinese patent CN208346878U, which discloses a walking excavator. It has a simple structure, high economic performance, and can adapt to complex terrain, especially for working in confined spaces and specific tasks. However, the installation of its fixing parts is done manually, which makes it easy for workers to be accidentally injured while working next to the excavator, resulting in low safety of the workers' working environment. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides an excavator chassis with an auxiliary fixing mechanism to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: an excavator chassis with an auxiliary fixing mechanism, including a frame. Support rods are rotatably connected to both front ends of the frame via bearings, and the support rods are driven to rotate by a servo motor mounted on the frame. Two first fixing blocks and a second fixing block are welded to the top and bottom sides of the frame, respectively. Fixing holes are provided on one side of each of the first and second fixing blocks. A third fixing block is welded to one side of the support rod, and a sliding hole is provided on one side of the third fixing block. A fixing rod is slidably connected within the sliding hole. A screw is integrally formed on one side of the fixing rod. A threaded cylinder is rotatably connected to one side of the third fixing block via a bearing, and one end of the screw passes through the threaded cylinder and is threadedly connected to it. A guide assembly restricting the rotation of the screw is provided on one side of the third fixing block, and a power assembly driving the threaded cylinder to rotate is provided on one side of the support rod.

[0006] As a further embodiment of this utility model, the guide assembly includes an insertion hole on one side of the third fixing block, a guide frame is welded to one end of the screw, and one end of the guide frame is inserted into the insertion hole.

[0007] As a further embodiment of this utility model, the power assembly includes a servo motor fixed to one side of the support rod, the output shaft of the servo motor is interference-fitted with a worm gear rotating on one side of the support rod, the threaded cylinder key is connected to a worm wheel meshing with the worm gear, and a limiting assembly for auxiliary fixing of the worm gear is provided on one side of the support rod.

[0008] As a further embodiment of this utility model, the limiting component includes a turntable fixed to one end of the worm gear. The bottom of the turntable has multiple sliding grooves, and a slider is slidably connected in the sliding groove. A friction block is fixed to one end of the bottom of the slider by bolts. A pulling component for moving the slider is provided in the sliding groove. A fixing plate is welded to one side of the support rod, and a friction disc is fixed to the top of the fixing plate by bolts, with the friction block in contact with the friction disc.

[0009] As a further embodiment of this utility model, the pulling component is a tension spring, and the two ends of the tension spring are respectively fixed to the slide groove and the slider.

[0010] As a further embodiment of this utility model, the pulling component consists of two magnetic blocks that attract each other, with the two magnetic blocks respectively fixed on opposite sides of the slide groove and the slider.

[0011] As a further embodiment of this invention, both the sliding hole and the fixing hole are located on a circle centered on the rotation point of the support rod.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. This utility model uses a servo motor in conjunction with a guide assembly and a power assembly to move the screw into the fixing hole, thereby fixing the position of the support rod. Electrical components are used to rotate and fix the support rod, freeing up the labor of workers. During adjustment, workers only need to observe from a safe place away from the excavator to complete the adjustment work, which improves the safety of workers.

[0014] 2. This utility model provides a guide assembly, and the guide frame restricts the rotation of the screw, thereby allowing the screw to move horizontally without affecting the strength of the fixing rod. At the same time, the impact on the strength of the third fixing block is almost negligible, thus enabling the third fixing block to be better fixed to the first or second fixing block.

[0015] 3. This utility model uses a power component to move the fixed rod, thereby fixing the angle of the support rod. After fixing, the worm gear is fixed by the limiting component, so that it will not easily rotate and thus will not change the position of the fixed rod. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a partial cross-sectional view of the present invention.

[0018] Figure 3 This is a partially enlarged structural schematic diagram of the present invention.

[0019] Figure 4This is a schematic diagram of the tension spring structure of this utility model.

[0020] Figure 5 This is a schematic diagram of the magnetic block structure of this utility model.

[0021] The attached figures are labeled as follows: 1. Frame; 2. First fixing block; 3. Support rod; 4. Second fixing block; 5. Third fixing block; 6. Insertion hole; 7. Fixing rod; 8. Guide frame; 9. Worm gear; 10. Threaded cylinder; 11. Screw; 12. Servo motor; 13. Worm gear; 14. Turntable; 15. Fixing plate; 16. Friction disc; 17. Slide groove; 18. Slider; 19. Friction block; 20. Tension spring; 21. Magnetic block. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. This utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Reference Figures 1-5This utility model provides an excavator chassis with an auxiliary fixing mechanism, including a frame 1. Support rods 3 are rotatably connected to both front ends of the frame 1 via bearings. The support rods 3 are driven to rotate by a servo motor mounted on the frame 1. An auxiliary wheel is provided at the other end of each support rod 3. Two first fixing blocks 2 and second fixing blocks 4 are welded to the top and bottom sides of the frame 1, respectively. Fixing holes are provided on one side of each of the first fixing blocks 2 and 4. A third fixing block 5 is welded to one side of the support rod 3. A sliding hole is provided on one side of the third fixing block 5. The centers of the sliding hole and the fixing hole are both on a circle centered on the rotation point of the support rod 3, and the diameters of the sliding hole and the fixing hole are the same, allowing them to completely overlap. A fixing rod 7 is slidably connected within the sliding hole. A screw 11 is integrally formed on one side of the fixing rod 7. A threaded cylinder 10 is rotatably connected to one side of the third fixing block 5 via a bearing. One end passes through the threaded cylinder 10 and is threadedly connected to the threaded cylinder 10. A guide component is provided on one side of the third fixing block 5 to restrict the rotation of the screw 11. A power component is provided on one side of the support rod 3 to drive the threaded cylinder 10 to rotate. When the auxiliary wheel needs to be stored, the support rod 3 is driven to rotate by the servo motor, so that the sliding hole on the third fixing block 5 coincides with the fixing hole on the first fixing block 2. The threaded cylinder 10 is driven to rotate by the power component. Under the action of the thread and the guide component, the screw 11 drives the fixing rod 7 to move into the fixing hole, thereby limiting the first fixing block 2 and the third fixing block 5, so that the support rod 3 cannot rotate, thus completing the fixation of the position of the support rod 3. The rotation and fixation of the support rod 3 are completed by using electrical components, freeing up the labor of workers. During adjustment, workers only need to observe from a safe place away from the excavator to complete the adjustment work, which improves the safety of workers.

[0024] In this utility model, the guide assembly includes an insertion hole 6 opened on one side of the third fixing block 5. One end of the screw 11 is welded with a guide frame 8, and one end of the guide frame 8 is inserted into the insertion hole 6. When the threaded cylinder 10 rotates, the guide frame 8 restricts the rotation of the screw 11, thereby allowing the screw 11 to move horizontally without affecting the strength of the fixing rod 7. At the same time, the influence on the strength of the third fixing block 5 is almost negligible, thereby allowing the third fixing block 5 to be better fixed to the first fixing block 2 or the second fixing block 4.

[0025] The power assembly includes a servo motor 12 fixed to one side of the support rod 3. The output shaft of the servo motor 12 is interference-fitted with a worm gear 13 rotating on one side of the support rod 3. A threaded cylinder 10 is keyed to a worm wheel 9 that meshes with the worm gear 13. A limiting component is provided on one side of the support rod 3 to assist in fixing the worm gear 13. When it is necessary to fix the position of the support rod 3, the servo motor 12 is started. The servo motor 12 drives the worm gear 13 to rotate, thereby driving the worm wheel 9 to rotate, and then driving the threaded cylinder 10 to rotate, so as to achieve the purpose of moving the fixed rod 7, thereby completing the angle fixation of the support rod 3. After the fixation is completed, the worm gear 13 is fixed by the limiting component, so that it will not easily rotate, and thus will not change the position of the fixed rod 7.

[0026] Furthermore, the limiting assembly includes a turntable 14 fixed to one end of the worm gear 13. Multiple grooves 17 are formed at the bottom of the turntable 14, and a slider 18 is slidably connected within each groove 17. A friction block 19 is bolted to one end of the bottom of the slider 18. A pulling component for moving the slider 18 is provided within the groove 17. A fixing plate 15 is welded to one side of the support rod 3, and a friction disc 16 is bolted to the top of the fixing plate 15. The friction block 19 contacts the friction disc 16. When the worm gear 13 rotates, the worm gear 13 will... When the rotating turntable 14 rotates, the centrifugal force causes the slider 18 to move out of the groove 17, thereby disengaging the friction block 19 from the friction disk 16. This allows the worm gear 13 to rotate easily. When the worm gear 13 stops rotating, the centrifugal force disappears, and the pulling component pulls the slider 18 into the groove 17, causing the friction block 19 to contact the friction disk 16. This provides auxiliary fixation for the worm gear 13, preventing the worm gear 13 from rotating due to chassis vibration and improving the stability of the support rod 3.

[0027] Furthermore, the pulling component can be a tension spring 20, a magnetic block 21, or other elastic and recoverable items, preferably a tension spring 20 and a magnetic block 21. When the elastic component is a tension spring 20, both ends of the tension spring 20 are fixed to the slide groove 17 and the slider 18, respectively. The pulling component uses two attractive magnetic blocks 21, which are fixed to the opposite sides of the slide groove 17 and the slider 18, and the moving distance of the slider 18 never exceeds the distance at which the two magnetic blocks 21 are attracted to each other.

[0028] The working principle of this utility model is as follows: When the auxiliary wheel needs to be stored, the servo motor drives the support rod 3 to rotate, so that the sliding hole on the third fixing block 5 coincides with the fixing hole on the first fixing block 2. The servo motor 12 is started, and the servo motor 12 drives the worm gear 13 to rotate, which in turn drives the worm wheel 9 to rotate, and then drives the threaded cylinder 10 to rotate. Under the action of the thread, the guide frame, and the insertion hole 6, the screw 11 drives the fixing rod 7 to move into the fixing hole, so that the fixing rod 7 limits the first fixing block 2 and the third fixing block 5, so that the support rod 3 cannot rotate, thus completing the fixation of the position of the support rod 3. The rotation and fixation of the support rod 3 are completed by using electrical components, freeing up the labor of workers. During adjustment, workers only need to observe from a safe place away from the excavator to complete the adjustment work, which improves the safety of workers.

[0029] Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0030] The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs.

[0031] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. An excavator chassis with an auxiliary fixing mechanism, comprising a frame (1), wherein support rods (3) are rotatably connected to both front ends of the frame (1) via bearings, and the support rods (3) are driven to rotate by a servo motor mounted on the frame (1), characterized in that: The top and bottom sides of the frame (1) are respectively welded with two first fixing blocks (2) and two fixing blocks (4). Fixing holes are provided on one side of the first fixing blocks (2) and the second fixing blocks (4). A third fixing block (5) is welded on one side of the support rod (3). A sliding hole is provided on one side of the third fixing block (5). A fixing rod (7) is slidably connected in the sliding hole. A screw (11) is integrally formed on one side of the fixing rod (7). A threaded cylinder (10) is rotatably connected to one side of the third fixing block (5) through a bearing. One end of the screw (11) passes through the threaded cylinder (10) and is threadedly connected to the threaded cylinder (10). A guide component is provided on one side of the third fixing block (5) to restrict the rotation of the screw (11). A power component is provided on one side of the support rod (3) to drive the threaded cylinder (10) to rotate.

2. The excavator chassis with an auxiliary fixing mechanism according to claim 1, characterized in that: The guide assembly includes an insertion hole (6) on one side of the third fixing block (5), and a guide frame (8) is welded to one end of the screw (11), with one end of the guide frame (8) inserted into the insertion hole (6).

3. The excavator chassis with an auxiliary fixing mechanism according to claim 1, characterized in that: The power assembly includes a servo motor (12) fixed on one side of the support rod (3). The output shaft of the servo motor (12) is interference-fitted with a worm gear (13) rotating on one side of the support rod (3). The threaded cylinder (10) is keyed to a worm wheel (9) that meshes with the worm gear (13). A limiting assembly for auxiliary fixing of the worm gear (13) is provided on one side of the support rod (3).

4. The excavator chassis with an auxiliary fixing mechanism according to claim 3, characterized in that: The limiting component includes a turntable (14) fixed to one end of the worm gear (13). The bottom of the turntable (14) is provided with multiple sliding grooves (17). A slider (18) is slidably connected in the sliding groove (17). A friction block (19) is fixedly connected to one end of the bottom of the slider (18). A pulling component is provided in the sliding groove (17) to pull the slider (18) to move. A fixing plate (15) is welded to one side of the support rod (3). A friction disk (16) is fixedly connected to the top of the fixing plate (15), and the friction block (19) is in contact with the friction disk (16).

5. The excavator chassis with an auxiliary fixing mechanism according to claim 4, characterized in that: The pulling component is a tension spring (20), and the two ends of the tension spring (20) are fixed to the slide groove (17) and the slider (18) respectively.

6. The excavator chassis with an auxiliary fixing mechanism according to claim 4, characterized in that: The pulling component consists of two magnetic blocks (21) that attract each other, and the two magnetic blocks (21) are fixed on opposite sides of the slide groove (17) and the slider (18).

7. The excavator chassis with an auxiliary fixing mechanism according to claim 1, characterized in that: Both the sliding hole and the fixed hole are on a circle centered on the rotation point of the support rod (3).

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