Checking fixture for excavator frame

Abstract

The utility model relates to the field of mechanical detection, and discloses a testing fixture for an excavator frame, which comprises a bottom plate, the top end of the bottom plate is fixedly connected with two vehicle lifting blocks, a protection assembly is arranged between the two vehicle lifting blocks, a cleaning mechanism is also arranged between the two vehicle lifting blocks, and the cleaning mechanism is connected with the bottom plate. The cleaning mechanism comprises a sliding frame, the outer wall of the sliding frame is slidably connected with the ends, close to each other, of the two car lifting blocks, the inner wall of the sliding frame is rotationally connected with a threaded rod, the outer wall of the left end of the threaded rod is elastically connected with the inner wall of the sliding frame through a torsional spring, and the right end of the threaded rod is fixedly connected with a pull rope. The right end of the sliding frame is fixedly connected with a control rod. According to the vehicle frame inspection device, due to the arrangement of the cleaning mechanism, a worker can easily enter the vehicle bottom part, impurities at the vehicle bottom can be conveniently cleaned, and therefore the effect that the worker can smoothly inspect a vehicle frame is achieved.

Description

Technical Field

[0001] The utility model relates to the field of mechanical detection, in particular to a detection tool for an excavator frame. Background Art

[0002] The underframe of an excavator, also known as a traveling frame, is usually composed of a chassis, a crawler frame, and a traveling device. These parts work together to enable the excavator to travel stably in various complex terrains.

[0003] Since excavators often face harsh environments and heavy workloads during operation, it is often necessary to inspect the underframe after the excavator is used to ensure that it has not been severely damaged, so as to ensure that it can be used safely the next time the equipment is needed.

[0004] At present, when inspecting the underframe of an excavator, workers are often required to get under the vehicle to conduct a better inspection of the underframe. However, in actual use, due to the small gap at the bottom of the excavator and the working needs of the excavator, the bottom of the excavator is usually stuck with mud or other materials that hinder inspection, making it difficult for workers to inspect the underframe. Therefore, an inspection fixture for an excavator frame is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides an inspection fixture for an excavator frame, which aims to improve the problem in the prior art that it is inconvenient for workers to drill under the vehicle and the inspection process is easily blocked by attachments on the frame, affecting the inspection.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an inspection fixture for an excavator frame, comprising a base plate, the top of the base plate is fixedly connected to a frame block, the number of the frame blocks is set to two, a protective assembly is provided between the two frame blocks, and a cleaning mechanism is also provided between the two frame blocks, the cleaning mechanism comprises a sliding frame, the outer wall of the sliding frame is slidably connected to one end of the two frame blocks close to each other, the inner wall of the sliding frame is rotatably connected to a threaded rod, the left end outer wall of the threaded rod is elastically connected to the inner wall of the sliding frame by a torsion spring, the right end of the threaded rod is fixedly connected to a pull rope, the right end of the sliding frame is fixedly connected to a control rod, the interior of the control rod is provided with a length control assembly, the outer wall of the threaded rod passes through and is threadedly connected to a slider, the outer wall of the slider is slidably connected to the inner wall of the sliding frame, and the top of the slider is fixedly connected to a cleaning brush.

[0007] As a further description of the above technical solution:

[0008] The protection component comprises a mounting frame, an inner wall of the mounting frame is rotatably connected to a rotating frame, an inner wall of the rotating frame is slidably connected to a glass plate, and an inner wall of the mounting frame is slidably connected to a drawer.

[0009] As a further description of the above technical solution:

[0010] The length control assembly includes a mounting sleeve 1, the outer wall of the mounting sleeve 1 is fixedly connected to the inner wall of the control rod, the inner wall of the mounting sleeve 1 is rotatably connected to a fixed pulley, the inner wall of the control rod below the mounting sleeve 1 is slidably connected to the mounting sleeve 2, the inner wall of the mounting sleeve 2 is rotatably connected to the movable pulley, the end of the pull rope away from the threaded rod is fixedly connected to the upper inner wall of the control rod, the bottom end of the mounting sleeve 2 is fixedly connected to the control rope, and the end of the control rope is arranged on the outside of the control rod.

[0011] As a further description of the above technical solution:

[0012] The pull rope is wound around the outer wall of the threaded rod close to the right side, and the pull rope is wound around the outer walls of the fixed pulley and the movable pulley.

[0013] As a further description of the above technical solution:

[0014] The sliding frame is arranged above the mounting frame, and the frame block is in the shape of an isosceles trapezoid.

[0015] As a further description of the above technical solution:

[0016] The number of the rotating frames is set to two, and the connection points where the two rotating frames are rotatably connected to the mounting frame are set on the upper side away from each other.

[0017] As a further description of the above technical solution:

[0018] The number of threads of the threaded rod is less than the number of turns of the pull rope wrapped around the outer wall of the threaded rod, and the maximum number of rotations of the torsion spring is greater than the number of turns of the pull rope wrapped around the outer wall of the threaded rod.

[0019] As a further description of the above technical solution:

[0020] The end of the control rope is provided with a protrusion with a diameter larger than the hole opened on the inner wall of the control rod for the control rope to pass through.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, through the arrangement of the frame block, the sliding frame, the threaded rod, the torsion spring, the pull rope, the control rod, the length control component, the first mounting sleeve, the fixed pulley, the second mounting sleeve, the movable pulley, the control rope, the slider, and the cleaning brush, the staff can easily enter the bottom part of the vehicle and conveniently clean the impurities on the bottom of the vehicle, thereby ensuring that the staff can smoothly inspect the frame.

[0023] 2. In the utility model, by setting the mounting frame, the rotating frame, the glass plate and the drawer, when the staff is cleaning the bottom of the excavator underframe, the fallen debris can fall onto the glass plate, thereby ensuring that the staff will not fall onto the staff or be inhaled through the respiratory tract during the cleaning process, thereby achieving the effect of protecting the safety of the staff during the cleaning process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural diagram of the overall structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the three-dimensional structure of the overall structure of the present invention when used in conjunction with an excavator;

[0026] Figure 3 This is a schematic diagram of the three-dimensional structure of the protective component in the present invention;

[0027] Figure 4 It is a schematic cross-sectional view of the three-dimensional structure of the overall structure of the present invention;

[0028] Figure 5 For this utility model Figure 4 A magnified schematic diagram of the three-dimensional structure of part A;

[0029] Figure 6 For this utility model Figure 4 A magnified schematic diagram of the three-dimensional structure of part B;

[0030] Figure 7 This is a schematic diagram of the three-dimensional structure of the pull rope and length control component in the utility model.

[0031] Legend:

[0032] 1. Base plate; 2. Carriage block; 3. Protection assembly; 4. Cleaning mechanism; 31. Mounting frame; 32. Rotating frame; 33. Glass plate; 34. Drawer; 41. Sliding frame; 42. Threaded rod; 43. Torsion spring; 44. Pull rope; 45. Control rod; 46. Length control assembly; 461. Mounting sleeve 1; 462. Fixed pulley; 463. Mounting sleeve 2; 464. Movable pulley; 465. Control rope; 47. Slider; 48. Cleaning brush. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0034] Reference Figure 1 、 Figure 2 and Figure 4 The utility model provides an embodiment: an inspection fixture for an excavator frame, comprising a base plate 1, the upper surface of the base plate 1 is smooth, and the smooth setting makes it easy for workers to move on the upper end of the base plate 1, and a frame block 2 is fixedly connected to the top of the base plate 1, and the shape of the frame block 2 is an isosceles trapezoid. Through the shape setting of the frame block 2, the excavator can travel above the frame block 2, thereby achieving the effect of raising the height of the lower frame of the excavator, thereby increasing the range of activities of the workers, and the number of the frame blocks 2 is set to two.

[0035] Reference Figure 1 、 Figure 3 and Figure 4 A protective component 3 is provided between the two frame blocks 2. The protective component 3 is used to block impurities such as dirt cleaned during the inspection process to ensure that the staff are not easily affected by falling debris. The protective component 3 includes a mounting frame 31. The mounting frame 31 is in a mouth-shaped shape. The inner wall of the mounting frame 31 is rotatably connected to a rotating frame 32. The outer wall size of the rotating frame 32 is the same as half the size of the inner wall of the mounting frame 31. The number of rotating frames 32 is set to two, and the connection points of the two rotating frames 32 and the mounting frame 31 are rotatably connected are set on the side away from each other above. The inner wall of the rotating frame 32 is slidably connected to a glass plate 33. The color of the glass plate 33 is set to be colorless and transparent. The color setting of the glass plate 33 ensures that the staff can see the lower frame of the excavator above through the glass plate 33, thereby achieving the effect of facilitating detection. The inner wall of the mounting frame 31 is slidably provided with a drawer 34, which can be moved out of the mounting frame 31.

[0036] Reference Figure 4 - Figure 6A cleaning mechanism 4 is also provided between the two carriage blocks 2. The cleaning mechanism 4 includes a sliding frame 41. The sliding frame 41 is in the shape of a mouth. The outer wall of the sliding frame 41 is slidably connected to one end of the two carriage blocks 2 that are close to each other. The sliding direction of the sliding frame 41 is the front-back direction. The sliding frame 41 is arranged above the mounting frame 31. The inner wall of the sliding frame 41 is rotatably connected to a threaded rod 42. The outer wall of the left end of the threaded rod 42 is elastically connected to the inner wall of the sliding frame 41 through a torsion spring 43. One end of the torsion spring 43 is elastically connected to the left end of the threaded rod 42. The outer wall of the end is fixedly connected, the other end of the torsion spring 43 is fixedly connected to the inner wall of the sliding frame 41, the right end of the threaded rod 42 is fixedly connected to the pull rope 44, the pull rope 44 is inelastic, the number of thread turns of the threaded rod 42 is less than the number of turns of the pull rope 44 wrapped around the outer wall of the threaded rod 42, the maximum number of rotations of the torsion spring 43 is greater than the number of turns of the pull rope 44 wrapped around the outer wall of the threaded rod 42, the pull rope 44 is wrapped around the outer wall of the threaded rod 42 close to the right side, and the right end of the sliding frame 41 is fixedly connected to the control rod 45, and the shape of the control rod 45 is L-shaped.

[0037] Reference Figure 4 - Figure 6 The outer wall of the threaded rod 42 is penetrated and threadedly connected with a slider 47, and the outer wall of the slider 47 is slidably connected to the inner wall of the sliding frame 41. The sliding connection ensures that the slider 47 can and can only slide relative to the sliding frame 41, thereby ensuring that when the threaded rod 42 rotates, the slider 47 cannot rotate with the rotation of the threaded rod 42, and the top of the slider 47 is fixedly connected to a cleaning brush 48.

[0038] Reference Figure 4 、 Figure 6 and Figure 7, a control length component 46 is provided inside the control rod 45, and the control length component 46 includes a mounting sleeve 461. The outer wall of the mounting sleeve 461 is fixedly connected to the inner wall of the control rod 45, and the inner wall of the mounting sleeve 461 is rotatably connected to a fixed pulley 462. The mounting sleeve 461 and the fixed pulley 462 are combined into a fixed pulley group. The inner wall of the control rod 45 below the mounting sleeve 461 is slidably connected to a mounting sleeve 2 463, and the inner wall of the mounting sleeve 2 463 is rotatably connected to a movable pulley 464. The sliding direction of the mounting sleeve 2 463 is up and down sliding. The mounting sleeve 2 463 and the movable pulley 464 are combined into a movable pulley group. The number of fixed pulleys 462 and movable pulleys 464 is set. There are multiple fixed pulleys 462, and the number of movable pulleys 464 is consistent with that of fixed pulleys 462. The pull rope 44 is wrapped around the outer walls of the fixed pulley 462 and the movable pulley 464. The end of the pull rope 44 away from the threaded rod 42 is fixedly connected to the upper inner wall of the control rod 45. The bottom end of the mounting sleeve 463 is fixedly connected with the control rope 465. The control rope 465 is inelastic, and the end of the control rope 465 is arranged on the outside of the control rod 45. The end of the control rope 465 is provided with a protrusion with a diameter larger than the hole opened on the inner wall of the control rod 45 for the control rope 465 to pass through. Through the setting of the protrusion, it is ensured that the end of the control rope 465 away from the mounting sleeve 463 is always at the outside position of the control rod 45.

[0039] Working principle: When in use, the staff first drives the excavator to the highest point of the upper surface of the frame block 2, and then stops the excavator. The staff then lies down and enters the position above the bottom plate 1 between the two frame blocks 2 to inspect the lower frame of the excavator.

[0040] When the staff finds that there are a lot of debris stuck on the lower frame of the excavator, the staff first moves the control rod 45, so that the control rod 45 drives the sliding frame 41 to move in the front and rear directions. When it moves to the appropriate position, the staff pulls the control rope 465. When the control rope 465 is pulled, the control rope 465 drives the installation sleeve 2 463 to move downward, so that the installation sleeve 2 463 drives the movable pulley 464 to move downward, thereby increasing the distance between the movable pulley 464 and the fixed pulley 462, so that all sections of the pull rope 44 on the outer wall of the fixed pulley 462 and the movable pulley 464 are extended by the distance that the control rope 465 is pulled. Therefore, even if the staff only pulls the control rope 465 for a small length, the pull rope 44 can be pulled for a longer length.

[0041] When the pull rope 44 is pulled, because the pull rope 44 has only one channel from the inside of the sliding frame 41 to the inside of the control rod 45, the pull rope 44 drives the threaded rod 42 to rotate. Since the slider 47 cannot rotate with the rotation of the threaded rod 42, the slider 47 and the cleaning brush 48 move during the rotation of the threaded rod 42.

[0042] When the pull rope 44 is pulled to the point where it can no longer be pulled, the staff releases the pull rope 44. At this time, the pull rope 44 is not under force, so the torsion spring 43 drives the threaded rod 42 to rotate and reset under the action of torque, thereby restoring the slider 47 and the cleaning brush 48. The staff continues to pull the pull rope 44 intermittently for multiple times to make the cleaning brush 48 move back and forth, thereby achieving the effect of cleaning the bottom of the lower frame.

[0043] During the cleaning process, since the glass plate 33 is shielded above the workers, the impurities that fall after cleaning fall on the upper surface of the glass plate 33 and will not hit the workers or be inhaled by them, thereby ensuring the safety of the workers.

[0044] When the cleaning is completed, the staff pushes the rotating frame 32 through the middle position of the two rotating frames 32, so that the rotating frame 32 and the glass plate 33 are tilted. At this time, the staff pushes and pulls the rotating frame 32 back and forth. When the rotating frame 32 drives the glass plate 33 to vibrate, impurities can fall into the inside of the drawer 34. At this time, if the staff only needs to observe and inspect, they can directly check through the glass plate 33. If manual touch is required, they can push the glass plate 33 in the area to create a gap in its original position and then reach out to touch and inspect.

[0045] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A checking fixture for an excavator frame, comprising a bottom plate (1), characterized in that: The top of the bottom plate (1) is fixedly connected to a carriage block (2), the number of the carriage blocks (2) is set to two, a protection component (3) is provided between the two carriage blocks (2), and a cleaning mechanism (4) is also provided between the two carriage blocks (2), the cleaning mechanism (4) comprises a sliding frame (41), the outer wall of the sliding frame (41) is slidably connected to one end of the two carriage blocks (2) close to each other, the inner wall of the sliding frame (41) is rotatably connected to a threaded rod (42), the left end outer wall of the threaded rod (42) is connected to the left end outer wall of the threaded rod (42). The wall is elastically connected to the inner wall of the sliding frame (41) through a torsion spring (43), the right end of the threaded rod (42) is fixedly connected to a pull rope (44), the right end of the sliding frame (41) is fixedly connected to a control rod (45), a length control component (46) is provided inside the control rod (45), the outer wall of the threaded rod (42) is penetrated and threadedly connected to a slider (47), the outer wall of the slider (47) is slidably connected to the inner wall of the sliding frame (41), and the top of the slider (47) is fixedly connected to a cleaning brush (48).

2. The inspection tool for an excavator frame according to claim 1, characterized in that: The protection assembly (3) comprises a mounting frame (31), the inner wall of the mounting frame (31) is rotatably connected to a rotating frame (32), the inner wall of the rotating frame (32) is slidably connected to a glass plate (33), and the inner wall of the mounting frame (31) is slidably provided with a drawer (34).

3. The inspection tool for an excavator frame according to claim 1, characterized in that: The length control component (46) includes a mounting sleeve (461), the outer wall of the mounting sleeve (461) is fixedly connected to the inner wall of the control rod (45), the inner wall of the mounting sleeve (461) is rotatably connected to a fixed pulley (462), the inner wall of the control rod (45) below the mounting sleeve (461) is slidably connected to a mounting sleeve (463), the inner wall of the mounting sleeve (463) is rotatably connected to a movable pulley (464), the end of the pull rope (44) away from the threaded rod (42) is fixedly connected to the upper inner wall of the control rod (45), the bottom end of the mounting sleeve (463) is fixedly connected to the control rope (465), and the end of the control rope (465) is arranged on the outside of the control rod (45).

4. The inspection tool for an excavator frame according to claim 3, characterized in that: The pull rope (44) is wound around the outer wall of the threaded rod (42) close to the right side, and the pull rope (44) is wound around the outer walls of the fixed pulley (462) and the movable pulley (464).

5. The inspection tool for an excavator frame according to claim 1, characterized in that: The sliding frame (41) is arranged above the mounting frame (31), and the frame block (2) is in the shape of an isosceles trapezoid.

6. The inspection tool for an excavator frame according to claim 2, characterized in that: The number of the rotating frames (32) is set to two, and the connection points of the two rotating frames (32) and the mounting frame (31) for rotational connection are set on the upper side away from each other.

7. The inspection tool for an excavator frame according to claim 1, characterized in that: The number of threads of the threaded rod (42) is less than the number of turns of the pull rope (44) wound around the outer wall of the threaded rod (42), and the maximum number of rotations of the torsion spring (43) is greater than the number of turns of the pull rope (44) wound around the outer wall of the threaded rod (42).

8. The inspection tool for an excavator frame according to claim 3, characterized in that: The end of the control rope (465) is provided with a protrusion having a diameter larger than the hole opened on the inner wall of the control rod (45) for the control rope (465) to pass through.

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