A self-adjusting stable structure of an electric underground scraper

Abstract

The present invention relates to the technical field of scrapers, and discloses a self-adjusting stable structure of an electric underground scraper, comprising a machine body, a connecting frame connected to the output end of the machine body, a bucket connected to the connecting frame, an arc plate slidably connected to the inside of the bucket, a plurality of spring rods equidistantly arranged and fixedly connected to the bottom of both sides of the arc plate, and two sealing plates slidably connected to the outside of the spring rods, which can effectively protect the bucket and equipment from damage caused by instantaneous impact. Through the arc plate, after the bucket is filled with ore, the arc plate will generate a gravity impact directly in the vertical direction, which is buffered by the buffer rod, and the buffer direction is changed by the horizontal buffer member to achieve two-way buffering, which can effectively reduce the impact force of the bucket on the frame in the vertical direction, protect the structure of the connection part between the frame and the bucket, and avoid excessive wear and fracture of the components due to the action of horizontal force, thereby extending the service life of the frame and the entire equipment.

Description

Technical Field

[0001] The invention relates to the technical field of scrapers, and in particular to a self-adjusting stable structure of an electric underground scraper. Background Art

[0002] Electric underground loaders are key equipment in underground mining, tunnel construction and other fields. They rely on electric drive and hydraulic system to work together, use three-phase AC or permanent magnet synchronous motor as power source, convert electrical energy into mechanical energy, transmit it to the hydraulic system, and drive the bucket through the hydraulic piston to complete excavation, loading, transportation and unloading.

[0003] However, in the prior art, the ground of the underground working space is covered with ores of various sizes and shapes. These ores stand abruptly, and depressions and protrusions are distributed irregularly, with uneven depths and heights, which increases the instability of driving. When the bucket of the forklift is fully loaded with ores, its weight increases significantly. The density of these ores is large, which makes the bucket bear huge pressure. During the driving process of the vehicle, the weight of these ores will produce a strong impact force due to inertia. Every time the forklift travels on a bumpy road, the bucket full of ore will shake and displace violently due to inertia. The impact force caused by this shaking and displacement will cause damage to the connection part of the front frame through the bucket. Due to working in such a harsh environment for a long time, the front frame is continuously subjected to high-frequency and high-intensity pressure. Among them, the pin shaft, as a key component of the connection, will gradually be ground down under frequent force. The original The tight connection becomes loose, causing the bucket to shake during operation, further aggravating the transmission of impact force. At the same time, the balls or raceways inside the spherical bearings will also suffer from fatigue peeling due to long-term uneven pressure, resulting in unsmooth joint movement, affecting the steering and lifting of the bucket. In addition, the piston rod of the hydraulic cylinder is easily bent and deformed due to impact forces from different directions, which greatly reduces the working efficiency of the hydraulic system and even causes oil leakage and other faults. As the degree of damage to these transmission structure components continues to deepen, the connection between the bucket and the front frame becomes more and more unstable, causing the bucket's movement during operation to be no longer precise and smooth, and to become stuck and offset. This will not only seriously affect the operating efficiency of the shovel, reduce the accuracy and smoothness of ore handling, and extend the time for each loading and unloading of ore, but also pose a serious threat to the structural stability of the entire equipment.

[0004] To this end, a self-adjusting stabilizing structure of an electric underground scraper is proposed, which can ensure stable buffering of a bucket filled with ore. Summary of the invention

[0005] The purpose of the present invention is to provide a self-adjusting and stable structure for an electric underground scraper to solve the problem that the bucket causes pressure on the front workshop for a long time.

[0006] The technical solution of the present invention is: a self-adjusting and stable structure of an electric underground scraper, comprising a machine body, a connecting frame connected to the output end of the machine body, a bucket connected to the connecting frame, an arc plate slidably connected to the inside of the bucket, a plurality of spring rods equidistantly arranged and fixedly connected to the bottom of both sides of the arc plate, two sealing plates slidably connected to the outside of the spring rods, two horizontal buffers located at the bottom of the arc plate, a slider slidably connected to the inside of the bucket, a shaft body fixedly connected to the inside of the bucket, a slot rod rotatably connected to the outside of the shaft body, and a reset spring connected between the slider and the bucket, the horizontal buffer is used to buffer the arc plate, the slot rod is located inside the slider, the reset spring is provided in plurality, the slider supports the arc plate through the slot rod, the slider comprises an initial position and a set position, the slider is driven by the rotation of the bucket to move from the initial position to the set position, so that the slider is squeezed by the connecting frame and slides, so that the arc plate is buffered by the horizontal buffer and the slot rod.

[0007] Furthermore, the bottom of the slider is an inner oblique block, the top of the slider is a limit block, the slot rod is located above the inner oblique block, the limit block is located above the slot rod, the bottom of the slider is a bottom arc surface, and when the slider is in the initial position, the slot rod does not contact the limit block.

[0008] Furthermore, two connecting plates and connecting sleeves are symmetrically arranged at the bottom of the arc plate, and the connecting sleeve is slidably connected to the inside of the slot rod. A plurality of buffer rods are equidistantly connected between the arc plate and the bucket, and the elastic coefficient of the buffer rod is smaller than the reset spring.

[0009] Furthermore, the horizontal buffer member includes a damper having one end rotatably connected to the connecting plate, a tripod rotatably connected to the other end of the damper, a rotating wheel rotatably connected to the inside of the tripod, and a changing block fixedly connected to the inside of the bucket, the tripod is rotatably connected to the connecting plate, the rotating wheel is located above the changing block, and the damper is perpendicular to the buffering direction of the buffer rod.

[0010] Furthermore, the connecting frame includes a frame connected to the body, and a stretcher arranged on the frame, two arc grooves are symmetrically opened on the side of the bucket close to the frame, two guide rods are symmetrically arranged inside the bucket, two connecting shafts are symmetrically arranged outside the bucket, and a connecting sleeve is arranged on the side of the bucket close to the frame.

[0011] Furthermore, a slope block is provided on the top of the frame, one end of the frame is rotatably connected to the outside of the connecting shaft, and the output end of the stretcher is rotatably connected to the connecting sleeve.

[0012] Furthermore, the contact surface between the arc plate and the sealing plate is a bottom slope, which is parallel to the sealing plate, the contact surface between the inner side of the bucket and the sealing plate is an inner slope, and the contact surface between the sealing plate and the bucket is a side slope, which is parallel to the inner slope and always fits well.

[0013] Furthermore, the top of the direction-changing block is a guide arc plate, both ends of the guide arc plate are protruding upwards, a straight groove is opened on the top of the direction-changing block, and the rotating wheel is always located inside the straight groove.

[0014] Furthermore, when the bucket rotates to drive the slider to move from the initial position, the inclined surface block enters the interior of the bucket through the arc notch, and the bottom arc surface of the slider is squeezed by the bottom arc surface, so that the slider reaches the set position.

[0015] Furthermore, an outer protrusion is fixedly connected to one side of the sliding block, and the outer protrusion is slidably connected to the outside of the guide rod. A torsion spring is connected between the shaft body and the bucket, and the elastic coefficient of the torsion spring is smaller than that of the buffer rod.

[0016] Beneficial effects of the present invention:

[0017] Through the arc plate, after the bucket is filled with ore, the arc plate will produce a direct gravity impact in the vertical direction, which is buffered by the buffer rod, and the horizontal buffer is used to change the buffer direction to achieve two-way buffering. It can effectively reduce the impact force of the bucket on the frame in the vertical direction, reduce the deformation of the frame due to long-term excessive vertical pressure, and relieve the horizontal shaking and impact force of the frame, protect the structure of the connection between the frame and the bucket, and avoid excessive wear and breakage of components due to the action of horizontal force, thereby extending the service life of the frame and the entire equipment.

[0018] The slider is blocked by the inclined block to move the slider and release the restriction on the slot rod, so that the arc plate and the top ore can quickly absorb most of the impact force during the first buffering, avoiding the bucket and the frame from being subjected to excessive instantaneous loads, thereby reducing vibration transmission. The slider is subsequently used to restrict the slot rod so that the bucket and the arc plate can perform short-distance buffering, which can transform the bumpy vibration of the bucket, avoid the vibration directly acting on the frame, reduce the transmission of vibration to other parts of the equipment, prevent the loosening and fatigue damage of equipment parts due to long-term vibration, reduce the occurrence rate of equipment failures, and improve the reliability of the equipment.

[0019] The buffer force is changed by the slot rod and the slider, and the horizontal buffer is used for bidirectional vertical buffering. No control system is required. When the bucket is transferring ore, the contact between the frame and the slider is used to automatically trigger the buffering. This reduces the risk of buffering failure due to control system failure. In harsh underground working environments, it can more stably play a buffering role and ensure the normal operation of the equipment, thereby converting kinetic energy into elastic potential energy of the spring to play a buffering role. After installation, it can work automatically and is easy to maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of a three-dimensional structure of the present invention from a first viewing angle;

[0021] Figure 2 A top view of the bucket of the present invention;

[0022] Figure 3 For the present invention Figure 2 Sectional view at AA in the middle;

[0023] Figure 4 is a cross-sectional view of the bucket of the present invention;

[0024] Figure 5 For the present invention Figure 3 The enlarged schematic diagram of point B in the middle;

[0025] Figure 6 It is a structural schematic diagram of the arc plate of the present invention;

[0026] Figure 7 It is a structural schematic diagram of the horizontal buffer member of the present invention;

[0027] Figure 8 It is a structural schematic diagram of the slider of the present invention;

[0028] Fig. 9 It is a structural schematic diagram of the bucket of the present invention;

[0029] Fig.10 This is a state diagram of the slider of the present invention when it is in the initial position;

[0030] Fig.11 This is a state diagram of the slider of the present invention when it is in the setting position.

[0031] In the figure:

[0032] 1. Machine body; 2. Connecting frame; 21. Frame; 211. Inclined surface block; 22. Stretcher; 3. Bucket; 31. Arc notch; 32. Guide rod; 33. Connecting shaft; 34. Connecting sleeve; 301. Inner inclined surface; 4. Arc plate; 41. Connecting plate; 42. Connecting sleeve; 43. Buffer rod; 401. Bottom inclined surface; 5. Spring rod; 6. Sealing plate; 601. Side inclined surface; 7. Horizontal buffer; 71. Damper; 72. Tripod; 73. Rotating wheel; 74. Direction changing block; 741. Guide arc piece; 742. Straight groove; 8. Sliding block; 81. Inner inclined block; 82. Limiting block; 83. Bottom arc surface; 801. Outer convex block; 9. Shaft body; 91. Torsion spring; 10. Slot rod; 11. Return spring. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0034] Reference Figure 1-Figure 11 , which is an embodiment of the present invention, provides a self-adjusting stable structure of an electric underground scraper, including a machine body 1, a connecting frame 2 connected to the output end of the machine body 1, a bucket 3 connected to the connecting frame 2, an arc plate 4 slidably connected to the inside of the bucket 3, a plurality of spring rods 5 equidistantly arranged and fixedly connected to the bottom of both sides of the arc plate 4, two sealing plates 6 slidably connected to the outside of the spring rods 5, two horizontal buffers 7 located at the bottom of the arc plate 4, a slider 8 slidably connected to the inside of the bucket 3, a shaft 9 fixedly connected to the inside of the bucket 3, and a slot rod 10 rotatably connected to the outside of the shaft 9. , and a return spring 11 connected between the slider 8 and the bucket 3, the horizontal buffer 7 is used to buffer the arc plate 4, the slot rod 10 is located inside the slider 8, and a plurality of return springs 11 are provided. The slider 8 supports the arc plate 4 through the slot rod 10. The slider 8 includes an initial position and a set position. The slider 8 is driven by the rotation of the bucket 3 to move from the initial position to the set position, so that the slider 8 is squeezed by the connecting frame 2 and slides, so that the arc plate 4 uses the horizontal buffer 7 and the slot rod 10 for buffering, and can start to absorb and consume impact energy without delay, which can effectively protect the bucket 3 and the equipment from damage caused by instantaneous impact force.

[0035] Among them, there are two sliders 8, shafts 9 and slot rods 10, and the parts connected to them are of the same number, that is, a single slider 8 is connected to two return springs 11, ensuring that the return springs 11 have sufficient thrust on the slider 8, so that the slider 8 is in a stable state when not subjected to external force.

[0036] The bottom of the slider 8 is an inner oblique block 81, the top of the slider 8 is a limit block 82, the slot rod 10 is located above the inner oblique block 81, the limit block 82 is located above the slot rod 10, and the bottom of the slider 8 is a bottom arc surface 83. When the slider 8 is in the initial position, the slot rod 10 does not contact the limit block 82, and the slider 8 is used to support and limit the rotation angle of the slot rod 10.

[0037] Two connecting plates 41 and a connecting sleeve 42 are symmetrically arranged at the bottom of the arc plate 4. The connecting sleeve 42 is slidably connected to the inside of the slot rod 10. A plurality of buffer rods 43 are equidistantly connected between the arc plate 4 and the bucket 3. The elastic coefficient of the buffer rod 43 is smaller than the return spring 11.

[0038] Specifically, when the ore accumulation on the top of the arc plate 4 generates pressure on the arc plate 4, the arc plate 4 will generate a downward thrust, and the elastic coefficient of the reset spring 11 can be said to be a spring with a larger elastic coefficient. When the bucket 3 is impacted, it can generate a larger elastic force to resist deformation, making the slider 8 unable to move, and then the slot rod 10 fixes the arc plate 4, and the arc plate 4 and the bucket 3 are connected to the buffer rod 43, so that the arc plate 4 cannot move, ensuring that when the bucket 3 completes the rotation, that is, when the ore is transported, the arc plate 4 is not buffered, thereby ensuring the stability of the ore inside the bucket 3.

[0039] In addition, when the slider 8 is squeezed and translated, the bottom of the slot rod 10 loses the support of the slider 8, and the slot rod 10 is affected by the downward movement of the arc plate 4 and rotates around the shaft body 9 as the center. At this time, the rotation angle of the slot rod 10 is affected by the slider 8, and the moving distance of the slider 8 is affected by the connecting frame 2. The downward rotation distance of the slot rod 10 is always the translation distance of the slider 8, and the upward rotation distance of the slot rod 10 is always the distance between the slot rod 10 and the limit block 82. When the slider 8 stops moving, the slot rod 10 will not be able to continue to rotate downward. The slot rod 10 is slidably connected to the sleeve 42. Therefore, when the arc plate 4 is affected by bumps and moves up and down, the slot rod 10 will also rotate synchronously, but the rotation distance of the slot rod 10 can only be the distance between the slot rod 10 and the limit block 82, and the slider 8 moves. After the movement, the slot rod 10 rotates, and the rotation angle of the slot rod 10 is forty-five degrees. When the slider 8 no longer moves, the rotation angle of the slot rod 10 is fifteen degrees. At this time, the arc plate 4 will move up and down faster, and the buffer distance will be changed. At the first time, the arc plate 4 will quickly squeeze the buffer rod 43 and the slot rod 10. After the slider 8 stops, the buffer distance of the arc plate 4 will be smaller than the initial buffering force and distance of the arc plate 4, so that the arc plate 4 is buffered with a faster and shorter buffer distance. Therefore, the fast short-distance buffering can make the bucket 3 and the arc plate 4 quickly stabilize after being affected by the bumps, and prevent the ore from falling. The fast short-distance buffering can make the connection point operate under milder working conditions, avoiding premature damage caused by frequent high-intensity impacts.

[0040] Reference Figure 2-Figure 5The horizontal buffer member 7 includes a damper 71 rotatably connected to the connecting plate 41 at one end, a tripod 72 rotatably connected to the other end of the damper 71, a rotating wheel 73 rotatably connected to the inside of the tripod 72, and a turning block 74 fixedly connected to the inside of the bucket 3. The tripod 72 is rotatably connected to the connecting plate 41, the rotating wheel 73 is located above the turning block 74, and the damper 71 is perpendicular to the buffering direction of the buffer rod 43.

[0041] Specifically, when the slider 8 is in the set position, the buffer rod 43 can be regarded as vertical, and the damper 71 is horizontal. At this time, the arc plate 4 drops, and the buffer rod 43 will be used for horizontal buffering first, and the turntable 73 will be affected by the turning block 74 to rotate. At this time, the turning block 74 realizes two-way buffering, which can make the force borne by the bucket 3 and the frame 21 during operation more uniform and stable, and prevent the frame 21 from being excessively bent or damaged due to the bucket 3 being too heavy for a long time or a sudden vertical impact.

[0042] Reference Figure 2-Figure 6 The connecting frame 2 includes a frame 21 connected to the body 1, and a stretcher 22 arranged on the frame 21. Two arc grooves 31 are symmetrically opened on the side of the bucket 3 close to the frame 21. Two guide rods 32 are symmetrically arranged inside the bucket 3. Two connecting shafts 33 are symmetrically arranged outside the bucket 3. A connecting sleeve 34 is arranged on the side of the bucket 3 close to the frame 21. By starting the stretcher 22 to pull and push the connecting sleeve 34, the bucket 3 rotates with the connecting shaft 33 as the support point. When the bucket 3 completes the rotation, the bucket 3 will be located above the two frames 21.

[0043] Reference Figure 2-Figure 6 A ramp block 211 is provided at the top of the frame 21, and two ramp blocks 211 are provided. Accordingly, there are also two arc notches 31. One end of the frame 21 is rotatably connected to the outside of the connecting shaft 33, and the output end of the stretcher 22 is rotatably connected to the connecting sleeve 34.

[0044] Specifically, the top of the inclined surface block 211 is inclined and the two sides are rounded. When the bucket 3 rotates, the inclined surface block 211 is in a stationary state. After the bucket 3 gradually rotates, the inclined surface block 211 will enter the interior of the bucket 3 from the arc groove 31, and the slider 8 is located inside the bucket 3. At this time, the slider 8 is located above the inclined surface block 211, so that when the slider 8 moves with the bucket 3, the slider 8 will be blocked by the inclined surface block 211, and the slider 8 therefore moves along the path of the guide rod 32.

[0045] Reference Figure 1-Figure 8 The contact surface between the arc plate 4 and the sealing plate 6 is the bottom slope 401, which is parallel to the sealing plate 6. The contact surface between the inner side of the bucket 3 and the sealing plate 6 is the inner slope 301. The contact surface between the sealing plate 6 and the bucket 3 is the side slope 601, which is parallel to the inner slope 301 and always fits with it.

[0046] Specifically, when the arc plate 4 can move downward, the sealing plate 6 will be restricted by the inclination angle of the bucket 3 and move, so that the sealing plate 6 will be restricted by the spring rod 5 and move, and the sealing plate 6 will compress the spring rod 5, and the bottom slope 401 ensures that the arc plate 4 and the sealing plate 6 can always fit tightly, and the side slope 601 of the sealing plate 6 can fit tightly with the inner slope 301 to prevent ore from passing through, and the top of the arc plate 4 is reinforced by the structure, so that the arc plate 4 will not be deformed when it contacts the ore.

[0047] Reference Figure 1-Figure 11 The top of the deflection block 74 is a guide arc piece 741, and both ends of the guide arc piece 741 are raised upward to limit the rotating wheel 73 to prevent the rotating wheel 73 from being offset. A straight groove 742 is provided on the top of the deflection block 74, and the rotating wheel 73 is always located inside the straight groove 742. The straight groove 742 is used to change the moving direction of the rotating wheel 73. At this time, the arc plate 4 generates downward pressure, and the rotating wheel 73 uses the tripod 72 to squeeze the damper 71, so that the damper 71 is used for buffering, and cooperates with the buffer rod 43 to form a two-way vertical buffer.

[0048] Reference Figure 1-Figure 8 When the bucket 3 rotates and drives the slider 8 to move from the initial position, the inclined surface block 211 enters the interior of the bucket 3 through the arc notch 31, and the bottom arc surface 83 of the slider 8 is squeezed by the bottom arc surface 83, so that the slider 8 reaches the set position.

[0049] One side of the slider 8 is fixedly connected with an outer protrusion 801, which is slidably connected to the outside of the guide rod 32. The outer protrusion 801 is restricted by the guide rod 32 so that the slider 8 can only move along the path of the guide rod 32. A torsion spring 91 is connected between the shaft 9 and the bucket 3. The elastic coefficient of the torsion spring 91 is smaller than the buffer rod 43. When the arc plate 4 and the ore on the top thereof are affected by the bumps, and then the arc plate 4 moves up and down, when the arc plate 4 is moved down by the pressure of the ore above, it will Pressure is generated on the slot rod 10 and the buffer rod 43 at the same time. The slot rod 10 causes the torsion spring 91 to rotate and compress, and the buffer rod 43 will be compressed. The torsion spring 91 is used to enable the slot rod 10 to reset in time, and the buffer rod 43 is used to buffer the arc plate 4. The elastic force of the buffer rod 43 is smaller than the reset spring 11, so the torsion spring 91 is also smaller than the reset spring 11, so that when the reset spring 11 fixes the slider 8, the slot rod 10 will not be affected by the torsion spring 91 and move, thereby ensuring the stability of the structure.

[0050] The working principle of the present invention is as follows: when the bucket 3 is filled with ore, it needs to be transferred. The tensioner 22 pulls the connecting sleeve 34, so that the bucket 3 rotates with the connecting shaft 33 as the center of the circle, and the components inside the bucket 3 will move synchronously at this time. When the bucket 3 gradually rotates, the bucket 3 will gradually contact the frame 21, and the bucket 3 will use the frame 21 as the main support. At this time, the inclined surface block 211 will also enter the inner side of the bucket 3 through the arc groove 31, and because the slider 8 is driven by the bucket 3, it gradually approaches the inclined surface block 211 and the two finally contact, and the inclined surface block 211 is fixed on the top of the frame 21, and then the bottom arc surface 83 of the slider 8 will be squeezed by the inclined surface of the frame 21 when it contacts the inclined surface, so that the slider 8 moves along the guide The slider 8 will slide along the path of the rod 32, and the slider 8 will compress the return spring 11 when moving. At this time, the bottom of the horizontal buffer 7 located in the inner oblique block 81 also loses support, and the arc plate 4 above is squeezed by the ore to produce pressure on the horizontal buffer 7, and the arc plate 4 is squeezed downward, and the sealing plates 6 on both sides of the arc plate 4 are affected by the bucket 3 and compress the spring rod 5. At the same time, they are restricted by the spring rod 5 and shrink toward the bottom of the arc plate 4. The arc plate 4 also squeezes the horizontal buffer 7, so that the horizontal buffer 7 rotates with the shaft 9 as the center, and the sleeve 42 located inside the horizontal buffer 7 will also move downward, and the relative positions of the two are changed, but the sleeve 42 is always located inside the horizontal buffer 7. At the same time, when the horizontal buffer 7 rotates, the horizontal buffer The punch 7 will produce torsional compression on the torsion spring 91. At the same time, the arc plate 4 will compress the multiple buffer rods 43 when moving downward to perform vertical buffering. At the same time, the damper 71, the tripod 72 and the rotating wheel 73 located below the connecting plate 41 will also move downward. When the rotating wheel 73 moves downward, it will be affected by the guide arc piece 741 of the turning block 74, so that the rotating wheel 73 enters the inner side of the straight groove 742, so that the tripod 72 rotates, and then the damper 71 is compressed when the tripod 72 rotates, so that the damper 71 performs lateral buffering, thereby ensuring stable buffering when the bucket 3 rotates. When the machine body 1 drives the bucket 3 to transport, the arc plate 4 at the top of the ore is affected by the movement and shakes, thereby exerting pressure on the bucket 3 to act on the frame 21, and the ore is compressed by the arc plate 4 is used as support, so the arc plate 4 moves up and down with the ore when it is bumpy. At this time, the arc plate 4 will use the buffer rod 43 for buffering, and the torsion spring 91 will rotate when the slot rod 10 moves up, so that the slot rod 10 moves up, but the top of the slot rod 10 is restricted by the limited block 82, and the sleeve 42 is located inside the slot rod 10, so that the slot rod 10 restricts the upward movement of the arc plate 4, and when the arc plate 4 moves down, it squeezes the shaft body 9 again, so that the arc plate 4 continuously moves up and down in a short distance, thereby using the buffer rod 43 for short-distance rapid buffering, and at the same time, the rotating wheel 73 drives the tripod 72 to continuously buffer the damper 71 in a short distance, thereby ensuring the overall stability of the bucket 3 and the frame 21, and realizing the buffer force adjustment. When it is completed, the bucket 3 is rotated through the frame 21.When the inclined block 211 is no longer in contact with the slider 8, the reset spring 11 rebounds to reset the slider 8, so that the arc plate 4 and other components are reset to work next time.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A self-adjusting stabilizing structure of an electric underground scraper, comprising a body (1), characterized in that: It also includes a connecting frame (2) connected to the output end of the machine body (1), an arc plate (4) connected to the bucket (3) through the connecting frame (2), slidably connected to the inside of the bucket (3), a plurality of spring rods (5) equidistantly arranged and fixedly connected to the bottom of both sides of the arc plate (4), two sealing plates (6) slidably connected to the outside of the spring rods (5), two horizontal buffer members (7) located at the bottom of the arc plate (4), a sliding block (8) slidably connected to the inside of the bucket (3), a shaft (9) fixedly connected to the inside of the bucket (3), a slot rod (10) rotatably connected to the outside of the shaft (9), and a return spring (11) connected between the sliding block (8) and the bucket (3); The horizontal buffer (7) is used to buffer the arc plate (4); the slot rod (10) is located inside the slider (8); a plurality of return springs (11) are provided; the slider (8) supports the arc plate (4) through the slot rod (10); the slider (8) includes an initial position and a setting position; the slider (8) is driven by the bucket (3) to rotate and move from the initial position to the setting position, so that the slider (8) is squeezed by the connecting frame (2) and slides, so that the arc plate (4) is buffered by the horizontal buffer (7) and the slot rod (10); The bottom of the slider (8) is an inner oblique block (81), the top of the slider (8) is a limit block (82), the slot rod (10) is located above the inner oblique block (81), the limit block (82) is located above the slot rod (10), the bottom of the slider (8) is a bottom arc surface (83), and when the slider (8) is located in the initial position, the slot rod (10) does not contact the limit block (82); Two connecting plates (41) and a connecting sleeve (42) are symmetrically arranged at the bottom of the arc plate (4), and the connecting sleeve (42) is slidably connected to the inside of the slot rod (10).

2. The self-adjusting and stabilizing structure of an electric underground scraper according to claim 1, characterized in that: A plurality of buffer rods (43) are equidistantly connected between the arc plate (4) and the bucket (3), and the elastic coefficient of the buffer rods (43) is smaller than that of the return spring (11).

3. The self-adjusting stable structure of the electric underground scraper according to claim 2, characterized in that: The horizontal buffer member (7) comprises a damper (71) having one end rotatably connected to the connecting plate (41), a tripod (72) rotatably connected to the other end of the damper (71), a rotating wheel (73) rotatably connected inside the tripod (72), and a direction-changing block (74) fixedly connected inside the bucket (3), wherein the tripod (72) is rotatably connected to the connecting plate (41), the rotating wheel (73) is located above the direction-changing block (74), and the damper (71) is perpendicular to the buffering direction of the buffer rod (43).

4. The self-adjusting and stable structure of an electric underground scraper according to claim 1, characterized in that: The connecting frame (2) comprises a frame (21) connected to the machine body (1), and a tensioner (22) arranged on the frame (21); two arc notches (31) are symmetrically provided on one side of the bucket (3) close to the frame (21); two guide rods (32) are symmetrically provided inside the bucket (3); two connecting shafts (33) are symmetrically provided outside the bucket (3); and a connecting sleeve (34) is provided on one side of the bucket (3) close to the frame (21).

5. The self-adjusting and stabilizing structure of an electric underground scraper according to claim 4, characterized in that: A slope block (211) is provided on the top of the vehicle frame (21); one end of the vehicle frame (21) is rotatably connected to the outside of the connecting shaft (33); and the output end of the tensioner (22) is rotatably connected to the connecting sleeve (34).

6. The self-adjusting stabilizing structure of an electric underground scraper according to claim 1, characterized in that: The contact surface between the arc plate (4) and the sealing plate (6) is a bottom inclined surface (401), and the bottom inclined surface (401) is parallel to the sealing plate (6). The contact surface between the inner side of the bucket (3) and the sealing plate (6) is an inner inclined surface (301). The contact surface between the sealing plate (6) and the bucket (3) is a side inclined surface (601), and the side inclined surface (601) is parallel to and always fits with the inner inclined surface (301).

7. The self-adjusting and stabilizing structure of an electric underground scraper according to claim 3, characterized in that: The top of the direction-changing block (74) is a guide arc piece (741), both ends of the guide arc piece (741) are protruding upwards, and a straight groove (742) is provided on the top of the direction-changing block (74), and the rotating wheel (73) is always located inside the straight groove (742).

8. The self-adjusting and stabilizing structure of an electric underground scraper according to claim 5, characterized in that: When the bucket (3) rotates to drive the slider (8) to move from the initial position, the inclined surface block (211) enters the interior of the bucket (3) through the arc notch (31), and the bottom arc surface (83) of the slider (8) is squeezed by the inclined surface block (211), so that the slider (8) reaches the set position.

9. The self-adjusting stabilizing structure of an electric underground scraper according to claim 2, characterized in that: An outer protrusion (801) is fixedly connected to one side of the sliding block (8), and the outer protrusion (801) is slidably connected to the outside of the guide rod (32). A torsion spring (91) is connected between the shaft body (9) and the bucket (3), and the elastic coefficient of the torsion spring (91) is smaller than that of the buffer rod (43).

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