Automatic feed loading crane

Abstract

The invention relates to the technical field of cranes, in particular to an automatic feed loading crane which comprises two track beams, a reciprocating frame is installed between the two track beams, a walking mechanism is installed on the reciprocating frame, a plurality of lifting ropes are arranged below the walking mechanism, and a lifting frame is installed between the bottom ends of the lifting ropes. Sliding grooves are formed in the left end and the right end of the lifting frame correspondingly, sliding plates are slidably installed in the two sliding grooves correspondingly, clamping plates are fixedly installed at the bottom ends of the two sliding plates correspondingly, a positioning block is fixedly installed at the top end of the lifting frame, and telescopic rods are fixedly installed at the left end and the right end of the positioning block correspondingly. Lug plates connected with the corresponding telescopic rods are fixedly installed at the top ends of the two sliding plates correspondingly, and a friction mechanism is arranged below the walking mechanism. According to the crane, feed can be rapidly carried into a truck, the manual carrying time is shortened, the labor intensity is reduced, the truck loading speed is increased, the labor cost is reduced, and the safety is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cranes, and in particular to an automatic feed loading crane. Background Art

[0002] A crane is a machine that performs cyclic and intermittent motion. The double bridges form a bridge frame, which is generally composed of two main beams, two end beams, a walkway, guardrails and other components. The lifting and hoisting system can be composed of a reel-type hoisting mechanism, which is composed of a motor, a drum device, a cable, a hook and other components. The cable in the hoisting mechanism can be reeled up by a drum. In the manufacturing industry, it can be used for material handling, product assembly and maintenance on the production line. In the logistics industry, it is an important equipment for loading and unloading and handling of goods in places such as freight yards and docks. In the construction industry, it can be used to hoist large building materials and equipment, and can also play an important role in the process of bridge construction.

[0003] When moving feed in a warehouse, a crane is generally used for transportation. Using a crane to transport feed is not only efficient and safe, but also saves physical strength. However, when using a crane to load and unload feed, if the winding motor fails, the vertical downward gravity of the feed will cause the sling and the rope to fall rapidly, which will not only cause damage to the feed, but may even cause safety accidents and affect work production. At the same time, during the process of clamping and lifting the feed, the feed is prone to shaking, causing safety hazards.

[0004] Therefore, the present invention provides a feed automatic loading crane to solve the above problems. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an automatic feed loading crane, which effectively solves the problem that when the winding motor fails, the sling will fall rapidly with the rope, causing safety accidents, and the feed is prone to shaking during the process of clamping and lifting the feed.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is: A feed automatic loading crane comprises two track beams, a reciprocating frame is installed between the two track beams, a walking mechanism is installed on the reciprocating frame, a plurality of lifting ropes are provided below the walking mechanism, a lifting frame is installed between the bottom ends of the plurality of lifting ropes, sliding grooves are respectively provided at the left and right ends of the lifting frame, sliding plates are respectively slidably installed inside the two sliding grooves, clamping plates are respectively fixedly installed at the bottom ends of the two sliding plates, a positioning block is fixedly installed at the top of the lifting frame, telescopic rods are respectively fixedly installed at the left and right ends of the positioning block, ear plates connected with the corresponding telescopic rods are respectively fixedly installed at the tops of the two sliding plates, and a friction mechanism is provided below the walking mechanism.

[0007] Preferably, limiting bars are fixedly installed on the top ends of the two track beams, spacer blocks are fixedly installed on the left and right ends of the reciprocating frame, rolling wheels are rotatably installed on the front and rear ends of the two spacer blocks, a positioning rack is fixedly installed on the track beam on the right side, a positioning rod is slidably installed on the track beam on the right side, a travel motor is fixedly installed on the positioning rod, and a driving gear meshing with the positioning rack is coaxially fixedly installed on the rotating shaft of the travel motor.

[0008] Preferably, load-bearing rods are fixedly installed at the front and rear ends of the two spacer blocks, and the walking mechanism includes a sliding frame, which is arranged between the two load-bearing rods, and moving wheels are rotatably installed at the front and rear ends of the sliding frame, a connecting plate is fixedly installed on the bottom end of the sliding frame, a moving motor is fixedly installed on the right end of the connecting plate, a reducer is installed on the connecting plate, a first sprocket group is connected between the reducer and the corresponding moving wheel, and stop blocks are fixedly installed at the front and rear ends of the sliding frame.

[0009] Preferably, a plurality of support rods are fixedly installed on the bottom end of the connecting plate, a fixing plate is fixedly installed between the bottom ends of the plurality of support rods, a plurality of limiting plates are fixedly installed on the top of the fixing plate, a positioning shaft is rotatably installed between two of the limiting plates located on the same side, and reels are coaxially fixedly installed on the two positioning shafts, and each of the lifting ropes is connected to a corresponding reel.

[0010] Preferably, a lifting motor is fixedly installed on the top of the fixed plate, a self-rotating gear is coaxially fixedly installed on the rotating shaft of the lifting motor, a second sprocket set is connected between the self-rotating gear and the positioning shaft on the rear side, and a power gear meshing with the self-rotating gear is coaxially fixedly installed on the positioning shaft on the front side.

[0011] The top end of the lifting paddle shifters is fixedly mounted on the camshaft, and the top end of the lifting paddle shifters is fixedly mounted on the camshaft.

[0012] Preferably, a plurality of lifting blocks are fixedly installed on the top of the lifting frame, the lower end of each lifting rope is connected to the corresponding lifting block, a stabilizing frame is installed between the lower parts of the plurality of lifting ropes, a plurality of hidden holes are respectively opened on the two clamps, a lifting rod is rotatably installed in each hidden hole, a hidden gear is fixedly installed on each lifting rod, a sliding tooth plate that slides up and down is installed on each clamp, and an adjusting screw is rotatably installed on each clamp.

[0013] Preferably, external frames are fixedly installed on the left and right ends of the reciprocating frame, cleaning brushes are installed on the front and rear ends of each external frame, pressure springs are fixedly installed on the ends close to each other of the two spacer blocks, a pressure block is fixedly installed on each pressure spring, and a touch plate and an auxiliary rod are fixedly installed on the upper part of the sliding frame.

[0014] Preferably, a coaxial rod is connected between the two rope wheels located on the same side, and a bottom gear and a top gear are respectively rotatably installed on the two vertical rods located on the rear side, the bottom gear is meshingly connected with the corresponding top gear, and a third sprocket group is connected between each bottom gear and the corresponding coaxial rod, and the intercepting mechanism includes an intercepting frame, the left and right ends of the lifting plate are respectively fixedly installed with the intercepting frame, the left and right sides of the bottom end of the fixed plate are respectively slidably connected with the intercepting plates, and the bottom ends of the two intercepting plates are respectively fixed with push blocks, and an eccentric wheel is provided between the two top gears located on the same side, and sliding boxes are respectively fixedly installed on the two eccentric wheels, and eccentric blocks are respectively slidably installed in the two sliding boxes, and plug rods are respectively fixedly installed on the two eccentric blocks, and return springs are sleeved on the two plug rods.

[0015] Preferably, extension plates are fixedly mounted on the left and right ends of the lifting plate, and a descending spring is fixedly mounted on each of the extension plates.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The two clamping plates can quickly lift the feed and move it to the loading truck quickly, which reduces the time and labor intensity of manual handling, thereby speeding up loading, reducing labor costs, and improving safety. Flexible operation ensures smooth loading.

[0017] 2. Driven by the travel motor, the feed can be smoothly transported to the appropriate area, and because the limit bar is set in the limit groove, it prevents the rolling wheel from leaving the track beam during movement, thereby improving safety and stability.

[0018] 3. Since multiple lifting rods are used to lift and transport the feed, the loading and unloading speed is significantly improved, the manual operation time is reduced, the labor intensity of workers is reduced, and the risk of physical injury caused by long-term transportation is reduced. By adopting automated transportation, the company can reduce labor costs, the economic benefits are more significant, and different methods of transportation can be selected according to needs.

[0019] 4. The coordination of the rope pulley, coaxial rod, third sprocket set, bottom gear, top gear and eccentric wheel slows down the descent speed of the feed. The rapid rotation of the eccentric wheel drives the arc-shaped push ring to perform emergency braking on the lifting rope, preventing the rapid fall of the feed and improving safety.

[0020] 5. Due to the coordination between the descending spring and the first tension spring, the arc-shaped push ring pushes the lifting rope to move outward quickly, thereby increasing the friction between the arc-shaped push ring and the lifting rope, slowing down the descent speed of the feed, effectively preventing accidents, protecting the safety of personnel and equipment, and ensuring the safety of the operator and surrounding personnel. Slow descent can also provide enough time to react, reduce accidents, and extend the service life of the crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The three-dimensional state of the present invention is shown in FIG. Figure 1 ; Figure 2 The three-dimensional state of the present invention is shown in FIG. Figure 2 ; Figure 3 It is a schematic diagram of the connecting plate, the fixing plate and the bottom plate of the present invention; Figure 4 It is a schematic diagram of the structure of the sliding frame of the present invention; Figure 5 It is a schematic diagram of the installation position of the splint of the present invention; Figure 6 It is a schematic diagram of the mobile motor and reducer of the present invention; Figure 7 It is a schematic diagram of the installation position of the reel of the present invention; Figure 8 This is a schematic diagram of the installation position of the eccentric wheel of the present invention; Fig. 9 It is a schematic diagram of the installation position of the bottom gear and the top gear of the present invention; Fig.10 It is a schematic diagram of the eccentric wheel structure of the present invention; Fig.11 It is a schematic diagram of the built-in shell of the present invention; Fig.12 For the present invention Figure 2 A is an enlarged schematic diagram; Fig.13For the present invention Figure 8 The enlarged schematic diagram of point B in FIG.

[0022] Markings in the figure: 1. Track beam; 2. Reciprocating frame; 3. Lifting rope; 4. Lifting frame; 5. Sliding groove; 6. Sliding plate; 7. Clamping plate; 8. Positioning block; 9. Telescopic rod; 10. Ear plate; 11. Limiting strip; 12. Spacer block; 13. Rolling wheel; 14. Positioning rack; 15. Positioning rod; 16. Travel motor; 17. Driving gear; 18. Sliding frame; 19. Moving wheel; 20. Connecting plate; 21. Moving motor; 22. Speed ​​reducer; 23. First sprocket group; 24. Stopper; 25. Support rod; 26. Fixed plate; 27. Limiting plate; 28. Positioning shaft; 29. ​​Reel; 30. Lifting motor; 31. Rotating gear; 32. Second sprocket group; 33. Power gear; 34. Vertical rod; 35. Bottom plate; 36. Bending rod; 37. Rope wheel ; 38. Support rod; 39. Built-in rod; 40. Built-in shell; 41. Push rod; 42. Guide rod; 43. Lifting plate; 44. Push connecting rod; 45. First tension spring; 46. Lifting block; 47. Stabilizing frame; 48. Hidden hole; 49. Lifting rod; 50. Hidden gear; 51. Sliding tooth plate; 52. Adjusting screw rod; 53. External frame; 54. Cleaning brush; 55. Pressure spring; 56. Pressure block; 57. Touch plate; 58. Auxiliary rod; 59. Coaxial rod; 60. Bottom gear; 61. Top gear; 62. Third sprocket set; 63. Interceptor frame; 64. Interceptor plate; 65. Push block; 66. Eccentric wheel; 67. Sliding box; 68. Eccentric block; 69. Insert rod; 70. Return spring; 71. Extension plate; 72. Lowering spring; 73. Load-bearing rod. DETAILED DESCRIPTION

[0023] Refer to the following Figures 1 to 13 The embodiments of the present invention are described in detail. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0024] A feed automatic loading crane, such as Figure 1 , Figure 2 , Figure 5As shown, it includes two track beams 1, the front and rear ends of the two track beams 1 are fixedly installed at the corresponding positions of the warehouse respectively, and a certain distance is set between the two track beams 1, and a reciprocating frame 2 is installed between the two track beams 1, and the reciprocating frame 2 can move freely forward and backward along the two track beams 1, and a walking mechanism is installed on the reciprocating frame 2, and a plurality of lifting ropes 3 are arranged below the walking mechanism. Four lifting ropes 3 are arranged here, and the lifting ropes 3 can select existing suitable steel wire ropes or other suitable materials. A lifting frame 4 is installed between the bottom ends of the four lifting ropes 3, and two sliding grooves 5 are respectively provided at the left and right ends of the lifting frame 4, and sliding plates 6 are installed in the two sliding grooves 5 on the left side to slide left and right. Sliding plates 6 are installed in the two sliding grooves 5 on the right side for sliding left and right. The two sliding plates 6 are symmetrically arranged. Clamping plates 7 are fixedly installed on the bottom ends of the two sliding plates 6 respectively. A plurality of friction strips are evenly fixedly arranged on the end surfaces of the two clamping plates 7 close to each other. A positioning block 8 is fixedly installed on the middle part of the top of the lifting frame 4. Telescopic rods 9 are fixedly installed on the left and right ends of the positioning block 8 respectively. The telescopic rod 9 selects an existing suitable hydraulic rod, the hydraulic rod is connected to the controller, and the controller is connected to an external power supply. Ear plates 10 are fixedly installed on the top ends of the two sliding plates 6 respectively, and the telescopic outer end of each telescopic rod 9 is fixedly installed on the corresponding ear plate 10. A friction mechanism is provided below the walking mechanism; When loading and unloading bagged feed, the personnel move the reciprocating frame 2, the lifting rope 3, and the lifting frame 4 to the feed area. The bagged feed is located between the two clamping plates 7. The personnel turn on the power supply, and the controller starts the two telescopic rods 9 to retract. Then, the ear plates 10, the sliding plates 6, and the clamping plates 7 approach each other to completely clamp the bagged feed. The friction strips can play a good friction role on the outer side of the bagged feed to prevent the bagged feed from falling off the clamping plates 7. Then, the reciprocating frame 2 automatically moves the feed to the transport vehicle, and the controller starts the two telescopic rods 9 again. The telescopic ends of the two telescopic rods 9 push the corresponding ear plates 10, The sliding plate 6 and the clamping plate 7 are away from each other. Due to the gravity of the feed, the bagged feed falls smoothly into the transport vehicle, realizing fast and automatic loading. Since the two clamping plates 7 are used to clamp the feed bag and the four lifting ropes 3 are used to connect the lifting frame 4, the bagged feed will not shake during the transportation process, thereby improving work efficiency and reducing danger. The crane can quickly transport the feed to the loading vehicle, reducing the time and labor intensity of manual handling, thereby speeding up the loading speed, reducing labor costs, and improving safety. Due to flexible operation, the smooth progress of the loading operation is ensured.

[0025] like Figure 2 , Fig.12As shown, the top ends of the two track beams 1 are respectively fixedly installed with limiting strips 11 in the front-to-back direction, and the left and right ends of the reciprocating frame 2 are respectively fixedly installed with spacer blocks 12. Two rolling wheels 13 are rotatably installed on the left end of the left spacer block 12, and rolling wheels 13 are rotatably installed on the front and rear ends of the right spacer block 12. A limiting groove is opened in the middle of each rolling wheel 13, and the limiting strips 11 are arranged in the corresponding limiting grooves to prevent the rolling wheel 13 from leaving the track beam 1 during movement, thereby improving stability. The outer side surface of the rolling wheel 13 contacts the upper end surface of the track beam 1, and a positioning rack 14 is fixedly installed on the track beam 1 on the right side. A positioning rod 15 is installed on the track beam 1 located on the right side for sliding forward and backward, and a forward and reverse travel motor 16 is fixedly installed on the positioning rod 15, which is convenient for controlling the front and rear positions of the reciprocating frame 2, and the positioning rod 15 can provide a guiding effect for the travel motor 16, and a driving gear 17 meshing with the positioning rack 14 is coaxially fixedly installed on the rotating shaft of the travel motor 16, and a synchronous rod is fixedly connected to the housing of the travel motor 16, and the other end of the synchronous rod is connected to the corresponding track beam 1 for sliding forward and backward, and the top end of the rotating shaft of the travel motor 16 is rotatably connected to the reciprocating frame 2, and the travel motor 16 is connected to a controller, and the controller is connected to an external power supply; When it is necessary to transport the bagged feed, turn on the power, the controller starts the travel motor 16, the drive gear 17 engages the positioning rack 14 to move, and each rolling wheel 13 moves along the corresponding track beam 1, thereby carrying the bagged feed to the loading and unloading vehicle. Due to the drive of the travel motor 16, the feed can be smoothly transported to the appropriate area, which reduces the physical labor of the personnel to a certain extent and makes the operation more convenient. In addition, since the limiting strip 11 is set in the limiting groove, it prevents the rolling wheel 13 from detaching from the track beam 1 during movement, thereby improving safety and stability.

[0026] like Figure 2 , Figure 4 , Figure 6As shown, two load-bearing rods 73 located below the reciprocating frame 2 are fixedly installed between the two spacer blocks 12, thereby improving the safety of the crane. The walking mechanism includes a sliding frame 18, which is arranged between the two load-bearing rods 73 and located below the reciprocating frame 2. Moving wheels 19 are rotatably installed at the front and rear ends of the sliding frame 18, and each moving wheel 19 is rollingly arranged on the corresponding load-bearing rod 73. Rollers are coaxially fixedly installed between the two moving wheels 19 on the left and the two moving wheels 19 on the right, respectively, and the rollers rotate and penetrate the sliding frame 18. A connecting plate 20 is fixedly installed on the bottom end of the sliding frame 18, and the right top of the connecting plate 20 A mobile motor 21 is fixedly installed at the end, the mobile motor 21 is connected to the controller, the controller is connected to an external power supply, a reducer 22 is fixedly installed on the connecting plate 20, the rotating shaft of the mobile motor 21 is connected to the reducer 22, the first sprocket group 23 includes two first sprockets and a first chain, one of the rollers is coaxially fixedly installed with a first sprocket, the other first sprocket is coaxially fixedly installed on the reducer 22, the first chain is connected between the two first sprockets, and the front and rear ends of the sliding frame 18 are respectively fixedly installed with stoppers 24 located below the load-bearing rod 73, and the two stoppers 24 can block the load-bearing rod 73 on the same side, thereby improving the stability of the sliding frame 18; When the bagged feed in different positions is to be transported, the power is turned on, and the controller starts the moving motor 21. The moving motor 21 rotates synchronously with the first sprocket group 23 and the roller through the reducer 22. The four moving wheels 19 roll along the two load-bearing rods 73, thereby moving the two clamping plates 7 below to different positions. In this way, the bagged feed in different positions can be transported, which improves the transportation efficiency. At the same time, the setting of the reducer 22 can control the rotation speed of the moving motor 21 and improve the stability of the goods.

[0027] like Figure 4 , Figure 7 As shown, four support rods 25 are fixedly installed at the bottom end of the connecting plate 20, a fixing plate 26 is fixedly installed between the bottom ends of the four support rods 25, four limiting plates 27 are fixedly installed on the top of the fixing plate 26, a positioning shaft 28 is rotatably installed between the two limiting plates 27 located on the rear side, and a positioning shaft 28 is rotatably installed between the two limiting plates 27 located on the front side, four reels 29 are coaxially fixedly installed on the two positioning shafts 28, respectively, the top end of each of the lifting ropes 3 is fixedly installed on the corresponding positioning shaft 28 above, and is arranged between the two reels 29, four insertion holes are respectively opened on the fixing plate 26 and the bottom plate 35, and the two insertion holes on the same side are arranged correspondingly up and down, and the lifting rope 3 is installed in the corresponding two insertion holes.

[0028] like Figure 7As shown, a lifting motor 30 is fixedly installed on the top of the fixed plate 26, and the lifting motor 30 is arranged between the two positioning shafts 28. The lifting motor 30 is connected to a controller, and the controller is connected to a power supply. A self-rotating gear 31 is coaxially fixedly installed on the rotating shaft of the lifting motor 30, and the second sprocket set 32 ​​includes two second sprockets and a second chain, wherein the second sprockets are coaxially fixedly installed on one of the positioning shafts 28 and the rotating shaft of the lifting motor 30, respectively, and a second chain is connected between the two second sprockets, and a power gear 33 meshing with the self-rotating gear 31 is coaxially fixedly installed on the other positioning shaft 28; When the bagged feed is transported, the power is turned on, the controller starts the lifting motor 30, the second sprocket set 32 ​​rotates with the corresponding positioning shaft 28, the self-rotating gear 31 engages with the power gear 33 to rotate, and each lifting rope 3 is wound around the corresponding positioning shaft 28, thereby completing the lifting and transporting of the bagged feed. Due to the use of the lifting motor 30, the physical strength of the personnel is saved and the safety is improved.

[0029] like Figure 4 , Figure 7 , Fig. 9 , Fig.11 As shown, the friction mechanism includes a vertical rod 34, and the four corners of the bottom end of the fixed plate 26 are respectively fixedly installed with vertical rods 34, and a bottom plate 35 is fixedly installed between the bottom ends of the four vertical rods 34. A spacing is provided between the top of the bottom plate 35 and the bottom end of the fixed plate 26, and a spacing is provided between the top of the fixed plate 26 and the bottom end of the connecting plate 20. Two bending rods 36 are respectively fixedly installed at the front and rear ends of the bottom plate 35. (The structural shape of the bending rod 36 is shown in FIG. Fig. 9 As shown in the figure), each of the bending rods 36 is rotatably mounted with a rope wheel 37, each rope wheel 37 is arranged near the middle of the bottom plate 35, each of the lifting ropes 3 is in contact with and connected to the corresponding rope wheel 37, and due to the arrangement of the rope wheel 37, the lifting rope 3 is formed into a convex curved shape, and a support rod 38 is fixedly mounted at the middle of the top of the bottom plate 35; The top of the support rod 38 is fixedly installed with a built-in rod 39 in the front and rear directions. Two built-in shells 40 are fixedly installed at the front and rear ends of the built-in rod 39 respectively. The two built-in shells 40 located at the front and rear sides are symmetrically arranged. The top of the built-in shell 40 is provided with a mounting cavity. A push rod 41 is slidably installed in each positioning cavity. An arc-shaped push ring made of wear-resistant material is fixedly installed on the outer end of each push rod 41. Each arc-shaped push ring contacts the adjacent lifting rope 3. A vertical plug hole is provided on the built-in rod 39. A guide rod 42 is slidably installed in the plug hole. The top of the guide rod 42 is fixedly mounted with a lifting plate 43 in the front-to-back direction, and the top of each of the push rods 41 is rotatably mounted with a push link 44. The top of each push link 44 is rotatably mounted on the lifting plate 43, and the bottom is rotatably mounted on the corresponding push rod 41. The two push links 44 at the front side and the two push links 44 at the rear side form an "eight" shape. The top of the built-in rod 39 is fixedly mounted with a first tension spring 45, and the other top of the first tension spring 45 is fixedly mounted on the lifting plate 43. An interception mechanism is provided on the bottom surface of the fixed plate 26. When the lifting motor 30 suddenly fails, the clamping plate 7 rapidly descends with the feed, the lifting rope 3 rapidly rotates with the corresponding rope pulley 37, the interception mechanism no longer blocks the lifting plate 43, and the first tension spring 45 rapidly descends with the lifting plate 43 and the guide rod 42, and the lifting plate 43 pushes the corresponding push rod 41 and the arc-shaped push ring to squeeze the lifting rope 3 outward by pushing the connecting rod 44. Since the force of the first tension spring 45 is greater than the gravity of the feed, an "S" shape is formed between the bending rod 36 and the arc-shaped push ring, and the friction between the lifting rope 3 and the arc-shaped push ring will increase, thereby slowing down the descent speed of the feed, causing the feed to fall slowly, reducing losses, and improving safety.

[0030] like Figure 3 , Figure 5As shown, four lifting blocks 46 are fixedly installed on the top of the lifting frame 4, and the lower end of each lifting rope 3 is fixedly connected to the corresponding lifting block 46. A stabilizing frame 47 is installed between the lower parts of the four lifting ropes 3. Four stabilizing holes are opened on the stabilizing frame 47. The four lifting ropes 3 are respectively installed in the stabilizing holes. The stabilizing frame 47 can provide good stability for the four lifting ropes 3 and reduce the degree of shaking during the lifting of feed. A plurality of hidden holes 48 are respectively opened on the two clamping plates 7. Four hidden holes 48 are set here. Each hidden hole 48 is rotatably installed in the lower end A lifting rod 49 is installed, and a hidden gear 50 is coaxially fixedly installed on each lifting rod 49, and the hidden gear 50 is arranged in the hidden hole 48. A sliding tooth plate 51 is slidably installed up and down on the outer end of each clamp plate 7, and a moving block is fixedly installed on the top of the sliding tooth plate 51. A position block located above the moving block is fixedly installed on the outer end of the clamp plate 7. The position block is slidably installed on the outer surface of the clamp plate 7 up and down. The upper end of the adjusting screw rod 52 is rotatably installed on the position block, and the lower end is threadedly installed on the moving block. The sliding tooth plate 51 is meshed and connected with each corresponding hidden gear 50; When it is necessary to lift and transport the bagged feed, the two adjusting screws 52 are rotated, each sliding tooth plate 51 meshes with the corresponding hidden gear 50 and rotates, and each lifting rod 49 gradually swings out from the hidden hole 48 until it forms a 90-degree angle with the clamping plate 7. Then the personnel inserts the lifting rod 49 into the bottom of the bagged feed, turns on the power, and the controller starts the two telescopic rods 9 to shrink. Then the ear plate 10, the sliding plate 6, and the clamping plate 7 are moved closer to each other until the lifting rods 49 on the left and right sides are inserted into the bottom of the bagged feed. Then the feed is lifted and transported to the loading and unloading vehicle, and the feed can be unloaded using relevant tools. Since multiple lifting rods 49 are used to lift and transport the feed, the loading and unloading speed is significantly improved, the manual operation time is reduced, the labor intensity of workers is reduced, and the risk of physical injury caused by long-term transportation is reduced. By adopting automated transportation, enterprises can reduce labor costs, have more significant economic benefits, and can choose different methods of transportation according to needs.

[0031] like Figure 2 , Figure 4 , Fig.12As shown, the left and right ends of the reciprocating frame 2 are respectively fixedly installed with external frames 53, and the front and rear ends of each of the external frames 53 are respectively fixedly installed with cleaning brushes 54. During the forward and backward movement of the reciprocating frame 2, the bristles of the cleaning brush 54 can clean the dust and impurities on the track beam 1, the limiting strip 11, and the positioning rack 14, so as to facilitate the rolling of the rolling wheel 13. Pressure springs 55 are respectively fixedly installed on the mutually close ends of the two spacer blocks 12, and a pressure block 56 is fixedly installed on the other end of each of the pressure springs 55. A touch plate 57 is fixedly installed on the left end of the sliding frame 18, and a touch plate 57 is fixedly installed on the right end of the connecting plate 20. Long slots in the left and right directions are opened on the reciprocating frame 2, and an auxiliary rod 58 located in the long slot is fixedly installed on the top of the sliding frame 18. A blocking circular plate is fixedly installed on the top of the auxiliary rod 58, and the outer diameter of the blocking circular plate is larger than the inner diameter of the long slot. When the sliding frame 18 moves left and right, the touch plate 57 presses the pressure block 56, and the pressure spring 55 is compressed, which can buffer the reciprocating frame 2. Since the blocking circular plate is installed above the reciprocating frame 2, the stability and firmness of the sliding frame 18 are improved.

[0032] like Figure 4 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.13 As shown, a coaxial rod 59 is coaxially connected between the two rope wheels 37 on the left side, and a coaxial rod 59 is coaxially connected between the two rope wheels 37 on the right side. A bottom gear 60 and a top gear 61 are rotatably mounted on the two vertical rods 34 on the rear side, respectively. The bottom gear 60 is meshed and connected with the corresponding top gear 61. The bottom gear 60 is arranged above the corresponding top gear 61. A third sprocket set 62 is connected between each bottom gear 60 and the corresponding coaxial rod 59. The third sprocket set 62 includes two third sprockets and a third chain. The third sprockets are coaxially fixedly mounted on the top gear 61 and the coaxial rod 59 on the same side, respectively, and the third chain is connected between the two third sprockets on the same side. The interception mechanism includes an interception frame 63, and the left and right ends of the lifting plate 43 are respectively fixedly installed with the interception frame 63, and the left and right sides of the bottom end of the fixed plate 26 are respectively provided with rectangular grooves, and a rectangular block is slidably installed in each rectangular groove. An interception plate 64 is respectively fixedly installed on the mutually close ends of the two rectangular blocks, and a tension spring is respectively fixedly connected to the mutually close ends of the two rectangular blocks, and the other end of the tension spring is fixedly connected to the inner end of the rectangular groove. Under normal conditions, the top surface of the interception plate 64 contacts the bottom surface of the interception frame 63, and a push block 65 is fixedly installed on the bottom end of each rectangular block. A synchronization rod is coaxially fixedly installed between the two top gears 61 on the left, and a synchronization rod is coaxially fixedly installed between the two top gears 61 on the right, and eccentric wheels 66 are respectively coaxially fixedly installed on the two synchronization rods, and the eccentric wheels 66 are corresponding to the push blocks 65 on the same side. The two eccentric wheels 66 are respectively fixedly mounted with sliding boxes 67, and eccentric blocks 68 are respectively slidably mounted in the two sliding boxes 67. When the eccentric wheel 66 rotates normally, the eccentric block 68 remains stationary. Only when the eccentric wheel 66 rotates rapidly, the eccentric block 68 will slide outward. The two eccentric blocks 68 are respectively fixedly mounted with plug rods 69, one end of the plug rod 69 passes through the outer end of the corresponding sliding box 67, and the two plug rods 69 are sleeved with return springs 70, one end of the return spring 70 is fixedly connected to the inner end of the corresponding sliding box 67, and the other end is fixedly connected to the eccentric block 68. The left and right ends of the lifting plate 43 are respectively fixedly mounted with extension plates 71, and the extension plates 71 are arranged in the interception frame 63 on the same side. A descending spring 72 is fixedly mounted on each of the extension plates 71, and the other end of each descending spring 72 is fixedly mounted on the bottom plate 35; When the lifting motor 30 suddenly fails, the clamping plate 7 drops rapidly with the feed, the lifting rope 3 rotates rapidly with the corresponding rope wheel 37, and each coaxial rod 59 rotates rapidly with the bottom gear 60 through the third sprocket set 62 to mesh with the top gear 61. At this time, each eccentric wheel 66 rotates rapidly. Due to the centrifugal principle, each eccentric block 68 pushes the corresponding plug rod 69 outward, and the reset spring 70 is compressed. When the plug rod 69 is thrown out, it will contact the pushing block 65 and slide outward against the pushing block 65. The tension spring is stretched instantly, and the two interception plates 64 slide away from each other and no longer block the interception frame 63. At this time, the descending spring 72 and the first tension spring 45 contract and move the lifting plate 43 downward rapidly. The lifting plate 43 pushes the corresponding push rod 41 and the arc-shaped push ring to squeeze the lifting rope 3 outward by pushing the connecting rod 44. Since the contraction force of the descending spring 72 and the first tension spring 45 is greater than the gravity of the feed, an "S" shape is formed between the bending rod 36 and the arc-shaped push ring, and the arc-shaped push ring and the lifting rope 3 are in close contact, the friction force is increased, thereby slowing down the descending speed of the feed. Due to the rapid rotation of the eccentric wheel 66, the arc-shaped push ring is driven to perform an emergency braking effect on the lifting rope 3 to prevent the feed from falling quickly, thereby improving safety.

[0033] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be fixed installation, detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A feed automatic loading crane, comprising two track beams (1), characterized in that: A reciprocating frame (2) is installed between the two track beams (1), and a walking mechanism is installed on the reciprocating frame (2). A plurality of lifting ropes (3) are arranged below the walking mechanism, and a lifting frame (4) is installed between the bottom ends of the plurality of lifting ropes (3). Sliding grooves (5) are respectively provided at the left and right ends of the lifting frame (4), and sliding plates (6) are respectively slidably installed inside the two sliding grooves (5). Clamps (7) are respectively fixedly installed at the bottom ends of the two sliding plates (6). A positioning block (8) is fixedly installed at the top of the lifting frame (4), and telescopic rods (9) are respectively fixedly installed at the left and right ends of the positioning block (8). Ear plates (10) connected to the corresponding telescopic rods (9) are respectively fixedly installed at the top ends of the two sliding plates (6). A friction mechanism is provided below the walking mechanism.

2. The feed automatic loading crane according to claim 1, characterized in that: Limiting bars (11) are fixedly mounted on the top ends of the two track beams (1), spacer blocks (12) are fixedly mounted on the left and right ends of the reciprocating frame (2), rolling wheels (13) are rotatably mounted on the front and rear ends of the two spacer blocks (12), a positioning rack (14) is fixedly mounted on the track beam (1) on the right, a positioning rod (15) is slidably mounted on the track beam (1) on the right, a travel motor (16) is fixedly mounted on the positioning rod (15), and a driving gear (17) meshing with the positioning rack (14) is coaxially fixedly mounted on the rotating shaft of the travel motor (16).

3. The feed automatic loading crane according to claim 2, characterized in that: The front and rear ends of the two spacer blocks (12) are fixedly mounted with load-bearing rods (73); the walking mechanism comprises a sliding frame (18); the sliding frame (18) is arranged between the two load-bearing rods (73); the front and rear ends of the sliding frame (18) are rotatably mounted with moving wheels (19); a connecting plate (20) is fixedly mounted on the bottom end of the sliding frame (18); a moving motor (21) is fixedly mounted on the right end of the connecting plate (20); a reducer (22) is mounted on the connecting plate (20); a first sprocket group (23) is connected between the reducer (22) and the corresponding moving wheel (19); and stoppers (24) are fixedly mounted on the front and rear ends of the sliding frame (18).

4. The feed automatic loading crane according to claim 3, characterized in that: A plurality of support rods (25) are fixedly mounted on the bottom end of the connecting plate (20), a fixing plate (26) is fixedly mounted between the bottom ends of the plurality of support rods (25), a plurality of limiting plates (27) are fixedly mounted on the top end of the fixing plate (26), a positioning shaft (28) is rotatably mounted between two limiting plates (27) located on the same side, and reels (29) are coaxially fixedly mounted on the two positioning shafts (28), respectively, and each of the lifting ropes (3) is connected to a corresponding reel (29).

5. The feed automatic loading crane according to claim 4, characterized in that: A lifting motor (30) is fixedly mounted on the top of the fixing plate (26); a self-rotating gear (31) is coaxially fixedly mounted on the rotating shaft of the lifting motor (30); a second sprocket set (32) is connected between the self-rotating gear (31) and the positioning shaft (28) on the rear side; and a power gear (33) meshing with the self-rotating gear (31) is coaxially fixedly mounted on the positioning shaft (28) on the front side.

6. The feed automatic loading crane according to claim 4, characterized in that: The friction mechanism comprises a vertical rod (34), a plurality of vertical rods (34) are fixedly mounted on the bottom end of the fixed plate (26), a bottom plate (35) is fixedly mounted between the bottom ends of the plurality of vertical rods (34), each of the lifting ropes (3) passes through the fixed plate (26) and the bottom plate (35), two bending rods (36) are fixedly mounted on the front and rear ends of the bottom plate (35), a rope wheel (37) is rotatably mounted on each of the bending rods (36), each of the lifting ropes (3) is in contact with and connected to the corresponding rope wheel (37), a support rod (38) is fixedly mounted on the top end of the bottom plate (35), and the support rod (38) A built-in rod (39) in the front-to-back direction is fixedly installed at the top of the built-in rod (39), two built-in shells (40) are fixedly installed at the front and rear ends of the built-in rod (39), a push rod (41) is slidably installed in each of the built-in shells (40), a guide rod (42) that slides up and down is installed on the built-in rod (39), a lifting plate (43) is fixedly installed at the top of the guide rod (42), a pushing connecting rod (44) is connected between each of the push rods (41) and the lifting plate (43), a first tension spring (45) is fixedly installed at the top of the built-in rod (39), and an interception mechanism is provided on the bottom surface of the fixed plate (26).

7. The feed automatic loading crane according to claim 1, characterized in that: A plurality of lifting blocks (46) are fixedly mounted on the top of the lifting frame (4), the lower end of each lifting rope (3) is connected to the corresponding lifting block (46), a stabilizing frame (47) is installed between the lower parts of the plurality of lifting ropes (3), a plurality of hidden holes (48) are respectively opened on the two clamping plates (7), a lifting rod (49) is rotatably mounted in each of the hidden holes (48), a hidden gear (50) is fixedly mounted on each of the lifting rods (49), a sliding tooth plate (51) that slides up and down is installed on each of the clamping plates (7), and an adjusting screw rod (52) is rotatably mounted on each of the clamping plates (7).

8. The feed automatic loading crane according to claim 3, characterized in that: External frames (53) are fixedly mounted on the left and right ends of the reciprocating frame (2), cleaning brushes (54) are installed on the front and rear ends of each external frame (53), pressure springs (55) are fixedly mounted on the mutually adjacent ends of the two spacer blocks (12), a pressure block (56) is fixedly mounted on each pressure spring (55), and a touch plate (57) and an auxiliary rod (58) are fixedly mounted on the upper side of the sliding frame (18).

9. The feed automatic loading crane according to claim 6, characterized in that: A coaxial rod (59) is connected between the two rope wheels (37) located on the same side, and a bottom gear (60) and a top gear (61) are rotatably mounted on the two vertical rods (34) located on the rear side, respectively. The bottom gear (60) is meshedly connected with the corresponding top gear (61), and a third sprocket group (62) is connected between each bottom gear (60) and the corresponding coaxial rod (59). The interception mechanism includes an interception frame (63), and the left and right ends of the lifting plate (43) are respectively fixedly mounted with the interception frame (63). The left and right sides of the bottom end of the plate (26) are slidably connected with intercepting plates (64), and push blocks (65) are fixed to the bottom ends of the two intercepting plates (64). An eccentric wheel (66) is provided between the two top gears (61) on the same side, and sliding boxes (67) are fixedly installed on the two eccentric wheels (66). Eccentric blocks (68) are slidably installed in the two sliding boxes (67), and plug rods (69) are fixedly installed on the two eccentric blocks (68). Return springs (70) are sleeved on the two plug rods (69).

10. The feed automatic loading crane according to claim 9, characterized in that: Extension plates (71) are fixedly mounted on the left and right ends of the lifting plate (43), respectively, and a descending spring (72) is fixedly mounted on each of the extension plates (71).

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