Crown block hoisting system

Abstract

The invention relates to the technical field of hoisting equipment, in particular to a crown block hoisting system. Comprising a cart support arranged on the ground and a cart unit arranged on the cart support in a matched mode, and the cart unit moves along the cart support. A trolley moving beam is arranged on the cart unit, the trolley unit is arranged on the trolley moving beam in a matched mode, and the trolley unit moves along the trolley moving beam; a hoisting unit is arranged on the trolley unit, and the operating end of the hoisting unit is connected with the hoisting connecting mechanism; the hoisting connecting mechanism is used for fixing a to-be-hoisted object; the cart support comprises supporting legs and cart cross beams arranged on the supporting legs. Monitoring cameras are arranged on the two sides of the cart support and the two sides of the trolley moving beam respectively and used for monitoring the operating environment and the equipment state of the crown block in real time, and the positions of the cart, the trolley and the hoisting state of the crown block are monitored; the monitoring camera is connected with the NVR through the switch; the invention aims to solve the technical problem of monitoring the positions of the cart and the trolley of the crown block.

Description

Technical Field

[0001] The present invention relates to the technical field of lifting equipment, and particularly relates to a crane hoisting system. Background Art

[0002] The operation mode of a traditional crane is as follows: the mode of a ground signalman directing the operation of the overhead crane; this mode requires the cooperation of the crane driver and the ground signalman. According to the lifting instruction, the product stacking position is found manually, and then the lifting operation is carried out; in the traditional method, the movement of the crane needs to be conveyed to the operator by the signalman. The forward and backward movement of the trolley, the movement of the crab, and the clamping action all need to be transmitted by the signalman; the crane operator cannot observe the operating conditions of the crane; there are potential safety hazards.

[0003] Therefore, the problem existing in the prior art is: how to realize the monitoring of the positions of the trolley, crab, and lifting state of the crane. Summary of the Invention

[0004] The present invention provides a crane hoisting system, aiming to solve the monitoring of the positions of the trolley and crab of the crane.

[0005] The technical solution used in the present invention is as follows: A crane hoisting system includes a trolley support arranged above the ground and a trolley unit cooperating with the trolley support, and the trolley unit moves along the trolley support; a crab moving beam is arranged on the trolley unit, and a crab unit cooperates with the crab moving beam, and the crab unit moves along the crab moving beam; a hoisting unit is arranged on the crab unit, and the operating end of the hoisting unit is connected to a hoisting connection mechanism; the hoisting connection mechanism is used to fix the object to be hoisted; the trolley support includes legs and a trolley cross beam arranged on the legs; monitoring cameras are respectively arranged on both sides of the trolley support and both sides of the crab moving beam, and the monitoring cameras are used to monitor the operating environment and equipment state of the crane in real time, so as to realize the monitoring of the positions of the trolley, crab, and lifting state of the crane; the monitoring cameras are connected to an NVR through a switch, and the NVR is used to centrally store the multi-channel video monitoring data of the crane operation site.

[0006] The data acquisition unit is connected to the NVR through a switch. The data acquisition unit is installed on the crab unit and includes a temperature and humidity sensor, a dust sensor, a smoke sensor, and an RFID reader. The temperature and humidity sensor is installed on the crane cross beam and adjusts the operation mode according to the environmental parameters; the RFID reader is used to read the material label information to realize intelligent material management.

[0007] Temperature and humidity sensors are used to detect the ambient temperature of the overhead crane, providing an environmental basis for adjusting the operating parameters of the overhead crane; dust sensors: capable of detecting dust particles above 0.8 μm, with a concentration measurement range of 0 - 600 μg / m³, and real-time monitoring of the operating environment of the overhead crane; smoke sensors: sensitive to combustible gases and smoke, with a detection concentration range of 300 - 10,000 ppm, ensuring operation safety; RFID readers are used to read material label information to achieve intelligent material management; RFID readers are used to read material label information to achieve intelligent material management: the reading and writing distance is 0 - 7 meters, supporting multi-tag recognition to achieve intelligent material management.

[0008] The lidar, vision camera are connected to the switch and NVR.

[0009] Lidar, with 16-line scanning, horizontal viewing angle of 360°, vertical viewing angle from -15° to +15°, measurement range of 0.1 - 100 meters, to construct a precise three-dimensional point cloud map of the storage area; vision camera, installed near the hook, capturing the shape, size of the material and its relative position with the hook, depth resolution of 1080p, field of view of 70°×60°, accurately capturing the 3D features of the lifted goods.

[0010] The waveguide communication module is connected to the communication network through the switch, and the waveguide communication module is installed on the side of the overhead crane bridge to achieve high-speed wireless communication between the overhead crane and the control center; connected to the switch through the network cable and accessing the communication network through the waveguide antenna.

[0011] 4G / 5G-CPE access device, connected to the switch through the network cable and accessing the operator network through the SIM card: providing a 4G / 5G backup communication link.

[0012] Furthermore, the trolley unit includes a trolley fixed beam and trolley moving components arranged on both sides of the trolley fixed beam. The middle of the trolley fixed beam is fixed to the trolley moving beam through mounting angle plates; the trolley moving components are used to drive the entire trolley unit to move along the trolley support; a guiding and braking mechanism is oppositely arranged at the middle position of the trolley fixed beam; the guiding and braking mechanism is used for guiding and correcting deviation during the emergency braking of the trolley unit, and at the same time for auxiliary braking.

[0013] Furthermore, the guiding and braking mechanism includes a guiding and braking base and a guiding and braking push rod disposed on the mounting angle plate. The guiding and braking push rod is disposed on the guiding and braking base, and the push head of the guiding and braking push rod penetrates through the guiding and braking base and is fixed to the guiding and braking base plate. On both sides of the guiding and braking base plate, guiding fixing seats with an n-shaped cross-section are provided. A guiding moving column is slidably fitted on the guiding fixing seats, and an anti-disengagement pulling plate is provided at the end of the guiding moving column. On the other side of the guiding moving column, there is a guiding moving plate with an L-shaped cross-section. Two guiding wheels are oppositely provided on the vertical side of the guiding moving plate. A guiding buffer spring is sleeved on the guiding moving column, and the guiding buffer spring is clamped between the guiding fixing seat and the guiding moving plate. On the inner side of the guiding fixing seat, braking fixing plates are oppositely provided. A braking sliding shaft is slidably fitted at the end of the braking fixing plate. A braking moving plate force is fixed on the other side of the braking sliding shaft. A braking buffer spring is sleeved on the braking sliding shaft.

[0014] Furthermore, a vertical braking plate is provided on the lower side of the guiding moving plate. The vertical braking plate is slidably fitted with the horizontal side of the guiding moving plate through a vertical sliding shaft. The upper side of the vertical sliding shaft is fixed to a braking linkage plate. Braking linkage channels are formed on the guiding moving plate and the guiding moving column. One end of a braking rope is fixed to the braking linkage plate, and the other end of the braking rope is fixedly wound around. The braking linkage channel is fixed to the guiding fixing seat. A vertical return spring is sleeved on the guiding moving column.

[0015] Furthermore, a locking sliding shaft is slidably fitted in the middle of the upper side of the large vehicle fixed beam. An anti-disengagement structure is provided at the bottom of the locking sliding shaft. A locking return spring is provided on the lower side of the locking sliding shaft, and the locking return spring is clamped between the large vehicle fixed beam and the anti-disengagement structure of the locking sliding shaft. The upper side of the locking sliding shaft is connected to a locking block with a U-shaped cross-section. At the same time, ear plates are oppositely provided on both sides of the locking block. An L-shaped locking guiding base plate is provided on the inner side of the guiding and braking base. An L-shaped locking guiding channel is formed on the L-shaped locking guiding base plate. One end of a locking rope is connected to the ear plate, and the other end of the locking rope passes through the locking guiding channel and is connected to the side portion of the guiding and braking base plate.

[0016] Furthermore, the hoisting unit includes a hoisting motor fixed to one side of the trolley unit, and a winding frame fixed to the other side of the trolley unit; a hoisting rope is wound inside the winding frame, and the other end of the hoisting rope is connected to a hook; winding brackets are provided oppositely on both sides of the winding frame, the winding brackets are fixed to the trolley unit, and the winding frame is rotationally matched with the winding brackets through a winding shaft; a driving gear is key-connected to the motor shaft of the hoisting motor, the winding shaft extends out of the winding bracket and is key-connected to a driven gear, and the driving gear and the driven gear are connected by a chain drive; a locking assembly is fixed outside the winding bracket, and the locking assembly is used for locking the hoisting rope after the hoisting motor stops; the locking assembly includes a winding roller rotatably matched with the winding bracket; a locking bracket is provided on the upper side of the winding bracket, a locking cylinder is provided on the upper side of the locking bracket, the push head of the locking cylinder extends downward out of the locking bracket and is fixed to a locking plate, a locking pressure block is provided on the lower side of the locking plate, and a groove corresponding to the cylindrical cross-section of the winding roller is provided on the lower side of the locking pressure block; the hoisting rope inside the winding frame bypasses the winding roller and is connected to the hoisting connection mechanism through a hook.

[0017] Furthermore, the middle of the winding roller has a cylindrical cross-section and both sides have a serrated cross-section; floating locking shafts are slidably matched on both sides of the locking plate; an anti-detachment structure is provided on the upper side of the floating locking shaft, a floating locking block is fixed to the lower side of the floating locking shaft, and the floating locking block has a serrated groove structure corresponding to the serrated cross-sections on both sides of the winding roller; a floating locking spring is sleeved on the floating locking shaft between the floating locking block and the locking plate.

[0018] Furthermore, the hoisting connection mechanism includes a hoisting connection frame with an n-shaped cross-section and an electromagnet connected to the hoisting connection frame; a reinforcing cross beam is vertically provided on the upper side of the hoisting connection frame; a sling channel is provided on the reinforcing cross beam, and an annular sling rope is provided inside the sling channel; the hoisting connection mechanism is connected to the hoisting unit through the sling rope; four hoisting adjustment channels are respectively provided on both sides of the hoisting connection frame; adjustment push rods are respectively provided on the sides of the hoisting connection frame, and the push heads of the adjustment push rods extend into the hoisting adjustment channels and are connected to a hoisting adjustment mechanism; a rope guide wheel is provided at the end of the hoisting adjustment channel, and a rope passing channel is opened on the lower side at the end of the hoisting adjustment channel; one end of an adjustment rope is connected to the electromagnet, and the other end of the adjustment rope passes through the rope passing channel, bypasses the rope guide wheel and is connected to the hoisting adjustment mechanism; an adjustment locking base plate is provided on the side of the hoisting adjustment channel opposite to the hoisting adjustment mechanism, an adjustment locking cylinder is provided on the adjustment locking base plate, and the push head of the adjustment locking cylinder passes through the adjustment locking base plate and is connected to a protection locking mechanism; the protection locking mechanism is used for locking the hoisting adjustment mechanism.

[0019] Further, the hoisting adjustment mechanism includes an adjustment block. Protrusions are provided on the upper and lower sides of the adjustment block, and the protrusions are used for sliding cooperation with grooves opened in the hoisting adjustment channel. Anti-disengagement cards with a triangular cross-section are provided on both sides of the adjustment block, and an unlocking card plate with an L-shaped cross-section is provided on the other side of the adjustment block. A through locking clamping groove is provided on the side of the adjustment block, driven clamping members are provided on both sides of the locking clamping groove, adjustment rope channels are respectively provided on the left and right sides of the adjustment block, an adjustment rope passes through the adjustment rope channels, and the adjustment rope is located between the two driven clamping members.

[0020] Further, the protection and locking mechanism includes a protection and locking seat with a U-shaped cross-section. Protection and locking chutes are provided at both ends of the protection and locking seat. Guide channels are opened on the upper and lower sides of the protection and locking chutes. A driving slide plate is slidably fitted in the protection and locking chutes. The driving slide plate includes parallel segments on both sides and an inclined plane segment in the middle. A sliding channel with a rectangular cross-section is provided on the side of the driving slide plate. Guide sliding columns are slidably fitted in the guide channels, and the guide sliding columns and both ends of the driving slide plate are fixed as a whole through driving connecting plates. A protection column channel with a rectangular cross-section is opened at the bottom of the protection and locking chute, and a protection sliding column is slidably fitted in the protection column channel. The outer side of the protection sliding column passes through the sliding channel and is fixed to the driven plate. A protection card plate is provided on the inner side of the protection sliding column, and the protection card plate has an inclined plane corresponding to the anti-disengagement card. A compression spring is sleeved on the protection sliding column, and the spring stiffness coefficient of the compression spring is much larger than that of the slide bar spring.

[0021] The beneficial effects achieved by the present invention are as follows: The operator can, through operating the video matrix at the console, select to view the real-time video images of different parts, different angles of the overhead crane and the key areas in the storage area, and can also project a specific video image to the main display screen or a designated display screen among multiple display screens, which is convenient for key monitoring and improves the monitoring efficiency and pertinence.

[0022] When an emergency occurs and the overhead crane needs to be emergently braked; the cart moving assembly stops, the guiding braking push rod extends, driving the guiding braking base plate to move towards one side of the cart support; after the guiding wheel contacts the cart support, the cart unit is guided and corrected; the guiding braking push rod continues to extend, the guiding fixed seat squeezes the guiding buffer spring, and the braking moving plate contacts the side wall of the cart support for auxiliary braking; the present application proposes a guiding braking mechanism with a specific structure. When the overhead crane needs to be emergently braked, the guiding wheel first contacts the cart support for guiding and correction; after the guiding wheel corrects the cart unit, the braking moving plate contacts the side wall of the cart support to achieve two-stage auxiliary braking; this special way of guiding and correcting first and then braking of the guiding braking mechanism will avoid the end face wear of the cart moving wheels and ensure that the braking moving plate and the side wall of the cart support are exactly opposite for frictional braking. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is the electrical connection block diagram of the sensing system of the present invention.

[0024] Figure 2 is the overall structural schematic diagram of the present invention.

[0025] Figure 3 is the communication block diagram of the present invention.

[0026] Figure 4 is the schematic diagram of the offset condition of the large vehicle unit of the present invention.

[0027] Figure 5 is the structural schematic diagram of the large vehicle unit of the present invention.

[0028] Figure 6 is the structural schematic diagram of the large vehicle moving component of the present invention.

[0029] Figure 7 is the schematic diagram of the position of the guiding braking mechanism of the present invention.

[0030] Figure 8 is the structural schematic diagram of the guiding braking mechanism of the present invention.

[0031] Figure 9 is the sectional structural schematic diagram of the locking guiding substrate of the present invention.

[0032] Figure 10 is the sectional structural schematic diagram of the guiding moving plate and guiding moving column of the present invention.

[0033] Figure 11 is the structural schematic diagram of the small vehicle unit of the present invention.

[0034] Figure 12 is the structural schematic diagram of the lifting unit of the present invention Figure 1 .

[0035] Figure 13 is the structural schematic diagram of the lifting unit of the present invention Figure 2 .

[0036] Figure 14 is the structural schematic diagram of the lifting unit of the present invention Figure 3 .

[0037] Figure 15 is the connection schematic diagram of the lifting unit and the lifting connection mechanism of the present invention.

[0038] Figure 16 is the structural schematic diagram of the lifting connection mechanism of the present invention Figure 1 .

[0039] Figure 17 is the structural schematic diagram of the lifting connection mechanism of the present invention Figure 2 .

[0040] Figure 18 is the structural schematic diagram of the lifting adjustment mechanism of the present inventionFigure 1 .

[0041] Figure 19 It is a schematic diagram of the hoisting adjustment mechanism structure of the present invention Figure 2 .

[0042] Figure 20 It is a schematic diagram of the structure of the driven clamping member of the present invention.

[0043] Figure 21 It is a schematic diagram of the protection locking mechanism structure of the present invention Figure 1 .

[0044] Figure 22 It is a schematic diagram of the protection locking mechanism structure of the present invention Figure 2 .

[0045] Figure 23 It is a schematic diagram of the operation of the protection locking mechanism of the present invention Figure 1 .

[0046] Figure 24 It is a schematic diagram of the operation of the protection locking mechanism of the present invention Figure 2 .

[0047] In the figure, 1. trolley moving beam; 2. gantry cross beam; 3. leg; 4. gantry moving wheel; 5. gantry fixed beam; 6. mounting angle plate; 7. gantry connecting frame; 8. gantry moving motor; 9. guiding and braking base; 10. guiding and braking push rod; 11. guiding and braking base plate; 12. guiding fixed seat; 13. guiding moving column; 14. anti-disengagement plate; 15. guiding moving plate; 16. guiding wheel; 17. guiding buffer spring; 18. braking fixed plate; 19. braking sliding shaft; 20. braking moving plate; 21. braking buffer spring; 22. vertical braking plate; 23. vertical sliding shaft; 24. braking linkage plate; 25. braking linkage channel; 26. braking rope; 27. vertical return spring; 28. locking sliding shaft; 29. locking return spring; 30. locking block; 31. ear plate; 32. locking guiding base plate; 33. locking guiding channel; 34. locking rope; 35. trolley connecting frame; 36. trolley moving wheel; 37. trolley moving motor; 38. hoisting motor; 39. winding frame; 40. hoisting rope; 41. hook; 42. winding support; 43. driving gear; 44. winding shaft; 45. driven gear; 46. chain; 47. winding roller; 48. locking support; 49. locking cylinder; 50. locking plate; 51. locking pressing block; 52. floating locking shaft; 53. floating locking block; 54. floating locking spring; 55. hoisting connecting frame; 56. electromagnet; 57. reinforcement cross beam; 58. sling channel; 59. sling rope; 60. hoisting adjustment channel; 61. adjustment push rod; 62. rope guide pulley; 63. adjustment rope; 64. rope passing channel; 65. adjustment locking base plate; 66. adjustment locking cylinder; 67. adjustment block; 68. anti-disengagement card; 69. unlocking card plate; 70. locking groove; 71. adjustment rope channel; 72. locking clip block; 73. locking sliding groove; 74. locking sliding rod; 75. locking pressing head; 76. locking pressing plate; 77. sliding rod spring; 78. protection locking seat; 79. protection locking sliding groove; 80. guiding channel; 81. driving slide plate; 82. sliding channel; 83. guiding sliding column; 84. driving connecting plate; 85. protection column channel; 86. protection sliding column; 87. driven plate; 88. protection card plate. Detailed implementation mode

[0048] For the convenience of those skilled in the art to understand the present invention, the following combines the attached drawings to illustrate the specific implementation mode of the present invention.

[0049] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] As Figure 1-2 shown, the present invention provides a crane lifting system, which includes a gantry support arranged above the ground and a gantry unit cooperating with the gantry support. The gantry unit moves along the gantry support for long-distance transportation. A trolley moving beam 1 is arranged on the gantry unit, and a trolley unit cooperates with the trolley moving beam 1. The trolley unit moves along the trolley moving beam 1 for lateral position adjustment. A lifting unit is arranged on the trolley unit, and the operating end of the lifting unit is connected to the lifting connection mechanism. The lifting connection mechanism is used to fix the object to be lifted. The gantry support includes legs 3 and a gantry cross beam 2 arranged on the legs 3. The gantry cross beam 2 has an H-shaped cross section. Monitoring cameras are respectively arranged on both sides of the gantry support and both sides of the trolley moving beam 1. The monitoring cameras are used to monitor the operating environment and equipment status of the crane in real time, so as to monitor the positions of the gantry, trolley, and lifting states of the crane. The monitoring cameras are connected to the NVR through a switch. The NVR (network video recorder) is used to centrally store multi-channel video monitoring data of the crane operation site. The NVR supports high-definition video formats and has a long-time video recording storage function. The video recording storage duration can be set according to requirements, such as 30 days, 60 days, etc., so as to retrospectively analyze the operation process, find the cause of faults or potential safety hazards afterwards. The NVR can transmit the video to the control center. The operator can select to view the real-time video images of different parts, different angles of the crane and key areas of the storage area by operating the video matrix at the console, and can also project a specific video image onto the main display screen or a designated display screen in the multi-display screen, which is convenient for key monitoring and improves the monitoring efficiency and pertinence.

[0051] As Figure 1 shown, the data acquisition unit is connected to the NVR through a switch. The data acquisition unit is installed on the trolley unit and includes a temperature and humidity sensor, a dust sensor, a smoke sensor, and an RFID reader. The temperature and humidity sensor is installed on the crane cross beam and adjusts the operation mode according to environmental parameters. The RFID reader is used to read the material label information to realize intelligent material management.

[0052] Temperature and humidity sensors are used to detect the ambient temperature of the overhead crane, providing an environmental basis for adjusting the operating parameters of the overhead crane; dust sensors: can detect dust particles above 0.8μm, with a concentration measurement range of 0 - 600μg / m³, and can monitor the operating environment of the overhead crane in real time; smoke sensors: sensitive to combustible gases and smoke, with a detection concentration range of 300 - 10,000ppm, to ensure operation safety; RFID readers are used to read material label information to achieve intelligent material management; RFID readers are used to read material label information to achieve intelligent material management: the reading and writing distance is 0 - 7 meters, supporting multi-tag recognition to achieve intelligent material management.

[0053] The lidar, vision camera are connected to the switch and NVR.

[0054] Lidar, 16-line scanning, horizontal viewing angle of 360°, vertical viewing angle from -15° to +15°, measurement range of 0.1 - 100 meters, to construct a precise three-dimensional point cloud map of the storage area; vision camera, installed near the hook 41, to capture the shape, size of the material and its relative position with the hook 41, with a depth resolution of 1080p and a field of view of 70°×60°, to accurately capture the 3D characteristics of the lifted goods.

[0055] The waveguide communication module is connected to the communication network through the switch, and the waveguide communication module is installed on the side of the overhead crane bridge to achieve high-speed wireless communication between the overhead crane and the control center; connect to the switch through the network cable and access the communication network through the waveguide antenna.

[0056] 4G / 5G-CPE access device, connected to the switch through the network cable and access the operator network through the SIM card: providing a 4G / 5G backup communication link.

[0057] In this application, through the RFID reader and the RFID tag set on the goods, using the RFID reader and the RFID tag, the overhead crane can quickly and accurately identify information such as the type, location, and storage requirements of the materials; combined with the warehouse management system, it realizes the intelligent management of materials, such as automatically planning the lifting path according to the order requirements, giving priority to processing materials for urgent orders, improving the inventory turnover rate, reducing the inventory cost, and at the same time reducing problems such as misdelivery and omission of materials caused by human errors; at the same time, the remote control center integrates the manufacturer's video monitoring system, which has an all-round control of the multi-channel monitoring videos of the overhead crane; the management personnel can view the operating status, working environment, material handling situation, etc. of the overhead crane in real time through the multi-displays (including large screens) of the control center without having to be on-site.

[0058] Such as Figure 4As shown in the figure, the trolley unit moves along the trolley support. When an emergency occurs and the overhead crane needs to make an emergency brake, the trolley unit brakes. The trolley moving wheels 4 of the trolley unit may be skewed and deviate in the direction of A1. The end face of the trolley moving wheel 4 may directly contact and wear against the trolley cross beam 2, resulting in the scrapping of the trolley moving wheel 4. To solve this problem, as Figure 2 , Figure 5 shown, the trolley unit includes a trolley fixed beam 5 and trolley moving components arranged on both sides of the trolley fixed beam 5. The trolley fixed beam 5 has an I-shaped cross-section, and the middle of the trolley fixed beam 5 is fixed to the trolley moving beam 1 through mounting angle plates 6. The trolley moving components are used to drive the entire trolley unit to move along the trolley support. A guiding and braking mechanism is oppositely arranged at the middle position of the trolley fixed beam 5. The guiding and braking mechanism is used for guiding and correcting deviation during the emergency braking of the trolley unit, and at the same time for auxiliary braking. As Figure 6 shown, the trolley moving components include oppositely arranged trolley connecting frames 7. The lower sides of the two plate-shaped trolley connecting frames 7 are fixed through a frame connecting shaft. The upper sides of the trolley connecting frames 7 are respectively rotatably fitted with trolley moving wheels 4. A trolley moving motor 8 is fixed on the inner trolley connecting frame 7. The motor shaft of the trolley moving motor 8 is key-connected to the two inner trolley moving wheels 4. The two outer trolley moving wheels 4 are rotatably connected to the trolley connecting frame 7 through wheel shafts. The four trolley moving components are started simultaneously to drive the entire trolley unit to move and convey along the trolley support.

[0059] As Figure 6-7 shown, the guiding and braking mechanism includes a guiding and braking base 9 and a guiding and braking push rod 10 arranged above the mounting angle plate 6. The guiding and braking push rod 10 is arranged above the guiding and braking base 9, and the push head of the guiding and braking push rod 10 passes through the guiding and braking base 9 and is fixed to the guiding and braking substrate 11. As Figure 8 shown, guiding fixed seats 12 with an n-shaped cross-section are arranged on both sides of the guiding and braking substrate 11. A guiding moving column 13 is slidably fitted on the guiding fixed seat 12, and an anti-disengagement pull plate 14 is provided at the end of the guiding moving column 13. On the other side of the guiding moving column 13 is a guiding moving plate 15 with an L-shaped cross-section, and two guiding wheels 16 are oppositely arranged on the vertical side of the guiding moving plate 15. A guiding buffer spring 17 is sleeved on the guiding moving column 13, and the guiding buffer spring 17 is stuck between the guiding fixed seat 12 and the guiding moving plate 15. Braking fixed plates 18 are oppositely arranged inside the guiding fixed seat 12, and a braking sliding shaft 19 is slidably fitted at the end of the braking fixed plate 18. An anti-disengagement structure is arranged on one side of the braking sliding shaft 19, and a braking moving plate 20 is fixed on the other side of the braking sliding shaft 19. A rubber layer is arranged inside the braking moving plate 20 to increase the friction force. A braking buffer spring 21 is sleeved on the braking sliding shaft 19 to ensure that the braking moving plate 20 is in flexible contact with the side wall of the trolley support.

[0060] During use, when an emergency occurs and the overhead crane needs to be emergently braked; the trolley moving assembly stops, the guiding brake push rod 10 extends, driving the guiding brake base plate 11 to move towards the trolley support side; after the guiding wheel 16 contacts the trolley support, the trolley unit is guided and corrected; the guiding brake push rod 10 continues to extend, the guiding fixed seat 12 squeezes the guiding buffer spring 17, and the braking moving plate 20 contacts the side wall of the trolley support to perform auxiliary braking; this application proposes a guiding brake mechanism with a specific structure. When the overhead crane needs to be emergently braked, the guiding wheel 16 first contacts the trolley support to perform guiding and correction; after the guiding wheel 16 corrects the trolley unit, the braking moving plate 20 contacts the side wall of the trolley support to achieve two-stage auxiliary braking; this special way of guiding and correcting and then braking of the guiding brake mechanism can avoid the end face wear of the trolley moving wheel 4 and ensure that the braking moving plate 20 is exactly opposite to the side wall of the trolley support for frictional braking.

[0061] To further enhance the braking effect, as Figure 10 shown, a vertical braking plate 22 is provided on the lower side of the guiding moving plate 15. The vertical braking plate 22 is slidably engaged with the horizontal side of the guiding moving plate 15 through a vertical sliding shaft 23; the upper side of the vertical sliding shaft 23 is fixed to the braking linkage plate 24; braking linkage channels 25 are formed on the guiding moving plate 15 and the guiding moving column 13. One end of the braking rope 26 is fixed to the braking linkage plate 24, and the other end of the braking rope 26 is fixedly wound around. The braking linkage channel 25 is fixed to the guiding fixed seat 12. A vertical return spring 27 is threaded through the guiding moving column 13, and the vertical return spring 27 is used to drive the vertical braking plate 22 to return; when the overhead crane needs to be emergently braked; the guiding brake push rod 10 extends, driving the guiding brake base plate 11 to move towards the trolley support side; after the guiding wheel 16 contacts the trolley support, the guiding brake push rod 10 continues to extend, and the guiding fixed seat 12 squeezes the guiding buffer spring 17; the fixed seat fixedly pulls the braking rope 26, and the other end of the braking rope 26 pulls the braking linkage plate 24 downward, and the vertical sliding shaft 23 slides downward along the guiding moving plate 15, and the vertical braking plate 22 contacts the lower side of the trolley support to perform auxiliary braking; the braking moving plate 20 contacts the side wall of the trolley support to perform auxiliary braking; auxiliary frictional braking is performed from different directions to further enhance the braking effect.

[0062] As Figure 7 、 9As shown, a locking sliding shaft 28 is slidably fitted in the middle of the upper side of the large vehicle fixed beam 5. The bottom of the locking sliding shaft 28 has an anti - detachment structure. A locking return spring 29 is provided on the lower side of the locking sliding shaft 28, and the locking return spring 29 is stuck between the large vehicle fixed beam 5 and the anti - detachment structure of the locking sliding shaft 28; the upper side of the locking sliding shaft 28 is connected to a locking block 30 with a U - shaped cross - section, and the locking block 30 faces the bottom of the large vehicle support; at the same time, ear plates 31 are provided oppositely on both sides of the locking block 30; an L - shaped cross - section locking guiding substrate 32 is provided inside the guiding braking base 9, and an L - shaped locking guiding channel 33 is opened on the locking guiding substrate 32. One end of a locking rope 34 is connected to the ear plate 31, and the other end of the locking rope 34 passes through the locking guiding channel 33 and is connected to the side of the guiding braking substrate 11; when the large vehicle unit and the small vehicle unit stop and the goods are lifted through the lifting connection mechanism; the guiding braking push rod 10 retracts, driving the guiding braking substrate 11 to move towards the guiding braking base 9. The guiding braking substrate 11 pulls the locking rope 34, and the other end of the locking rope 34 pulls the ear plate 31 upwards, so that the locking block 30 contacts the bottom of the large vehicle support, making the lifting device more stable.

[0063] The small vehicle unit is fitted on the small vehicle moving beam 1, as Figure 11 shown. The small vehicle unit includes relatively arranged small vehicle connecting frames 35. The lower sides of the two plate - shaped small vehicle connecting frames 35 are fixed by a frame connecting shaft; the upper sides of the small vehicle connecting frames 35 are respectively rotatably fitted with small vehicle moving wheels 36; a small vehicle moving motor 37 is fixed on one side of the small vehicle connecting frame 35; the motor shaft of the small vehicle moving motor 37 is key - connected to the two inner small vehicle moving wheels 36; the two outer small vehicle moving wheels 36 are rotatably connected to the small vehicle connecting frame 35 through wheel shafts; when the small vehicle moving motor 37 starts, it drives the small vehicle unit to move along the small vehicle moving beam 1 for position adjustment.

[0064] The small vehicle unit is provided with a lifting unit for lifting the lifting connection mechanism; as Figure 12 shown, one implementation of the lifting unit is an existing electric hoist lifting or winch; after long - term use, the lifting unit may be damaged to varying degrees, and it is very likely that an unexpected situation where the steel wire rope is not controlled by the internal motor of the lifting unit will occur; to solve this problem, as Figure 13-15As shown in the figure, the hoisting unit includes a hoisting motor 38 fixed to one side of the trolley unit, and a winding frame 39 fixed to the other side of the trolley unit; a hoisting rope 40 is wound inside the winding frame 39, and the other end of the hoisting rope 40 is connected to a hook 41; winding brackets 42 are provided oppositely on both sides of the winding frame 39, the winding brackets 42 are fixed to the trolley unit, and the winding frame 39 is rotationally matched with the winding brackets 42 through a winding shaft 44; a driving gear 43 is key-connected to the motor shaft of the hoisting motor 38, the winding shaft 44 extends out of the winding bracket 42 and is key-connected to a driven gear 45, and the driving gear 43 and the driven gear 45 are connected by a chain 46; a locking assembly is fixed outside the winding bracket 42, and the locking assembly is used to lock the hoisting rope 40 after the hoisting motor 38 stops; the locking assembly includes a winding roller 47 rotationally matched with the winding bracket 42, the middle of the winding roller 47 has a cylindrical cross-section and both sides have a serrated cross-section; a locking bracket 48 with an n-shaped cross-section is provided on the upper side of the winding bracket 42, a locking cylinder 49 is provided on the upper side of the locking bracket 48, the push head of the locking cylinder 49 extends downward out of the locking bracket 48 and is fixed to a locking plate 50, a locking pressure block 51 is provided on the lower side of the locking plate 50, the locking pressure block 51 is made of rubber, and the lower side of the locking pressure block 51 has a groove corresponding to the cylindrical cross-section of the winding roller 47; the hoisting rope 40 inside the winding frame 39 bypasses the winding roller 47 and is connected to the hoisting connection mechanism through the hook 41; after the height of the hoisting connection mechanism is adjusted by the hoisting motor 38 and the winding frame 39, the locking cylinder 49 extends, the locking pressure block 51 is in pressing contact with the winding roller 47, and the hoisting rope 40 is locked to prevent an unexpected event where the steel wire rope is out of control after the hoisting motor 38 is damaged; considering that after the structures of the hoisting motor 38 and the winding frame 39 fail, if the goods hoisted by the hoisting connection mechanism are too heavy, the winding roller 47 will overcome the locking of the locking pressure block 51 and rotate, still posing a safety risk; floating locking shafts 52 are slidably matched on both sides of the locking plate 50; the upper side of the floating locking shaft 52 has an anti-detachment structure, a floating locking block 53 is fixed to the lower side of the floating locking shaft 52, and the floating locking block 53 has a serrated groove structure corresponding to the serrated cross-sections on both sides of the winding roller 47; a floating locking spring 54 is sleeved on the floating locking shaft 52 between the floating locking block 53 and the locking plate 50; when locking the hoisting rope 40, the locking cylinder 49 extends, the locking pressure block 51 is in pressing contact with the winding roller 47, and the hoisting rope 40 is pressed and locked; the floating locking block 53 is in contact with the serrated cross-sections on both sides of the winding roller 47 to lock the winding roller 47.

[0065] The hoisting connection mechanism is used to fix the object to be hoisted, and the hoisting connection mechanism can be any existing type of lifting tool; such as Figure 16-17As shown in the figure, the hoisting connection mechanism of one of the embodiments includes a hoisting connection frame 55 with an n-shaped cross-section and an electromagnet 56 connected to the hoisting connection frame 55; a reinforcing cross beam 57 is vertically provided on the upper side of the hoisting connection frame 55; a sling passage 58 is provided on the reinforcing cross beam 57, and an annular sling rope 59 is provided in the sling passage 58; the hoisting connection mechanism is connected to the hoisting unit through the sling rope 59; four hoisting adjustment channels 60 (two on one side, a total of four) are respectively provided on both sides of the hoisting connection frame 55; adjustment push rods 61 are respectively provided on the side parts of the hoisting connection frame 55, and the push heads of the adjustment push rods 61 extend into the hoisting adjustment channels 60 and are connected to the hoisting adjustment mechanism; a rope guide wheel 62 is provided at the end of the hoisting adjustment channel 60, and a rope passing channel 64 is opened on the lower side of the end of the hoisting adjustment channel 60; one end of the adjustment rope 63 is connected to the electromagnet 56, and the other end of the adjustment rope 63 passes through the rope passing channel 64, bypasses the rope guide wheel 62 and is connected to the hoisting adjustment mechanism; an adjustment locking base plate 65 is provided on the side of the hoisting adjustment channel 60 opposite to the hoisting adjustment mechanism, an adjustment locking cylinder 66 is provided on the adjustment locking base plate 65, and the push head of the adjustment locking cylinder 66 penetrates through the adjustment locking base plate 65 and is connected to the protection locking mechanism; the protection locking mechanism is used to lock the hoisting adjustment mechanism; when hoisting an irregular object to be hoisted (for example, the upper surface of the object to be hoisted is an inclined surface or a stepped surface), the electromagnet 56 sucks the four corners of the object to be hoisted, the adjustment push rod 61 extends, and the relative position of the hoisting adjustment mechanism in the hoisting adjustment channel 60 is changed, so that the adjustment rope 63 is straightened (that is, the positions of the hoisting adjustment mechanisms on the left and right sides are asymmetric), so as to ensure that the object to be hoisted is face up and does not tilt (that is, after being lifted, the lower surface of the object to be hoisted also remains horizontal), so that when the hoisted object is released, the lower surface of the hoisted object can be parallel to the ground, thereby reducing the collision caused by unilateral tilt; the adjustment locking cylinder 66 extends, and the adjustment locking cylinder 66 is used to lock the protection locking mechanism; the hoisting unit hoists the entire hoisting connection mechanism and moves it through the trolley unit and the car unit; when the hoisted object moves to the release position, the lower surface of the hoisted object can be parallel to the ground, and the hoisted object is released.

[0066] As Figure 18-19As shown in the figure, the hoisting adjustment mechanism includes an adjustment block 67. Convex portions are provided on the upper and lower sides of the adjustment block 67, and the convex portions are used for sliding cooperation with the grooves formed in the hoisting adjustment channel 60. Anti-disengagement cards 68 with a triangular cross-section are provided on both sides of the adjustment block 67, and an unlocking card plate 69 with an L-shaped cross-section is provided on the other side of the adjustment block 67. A through locking clip groove 70 is provided on the side of the adjustment block 67. Driven clamping members are provided on both sides of the locking clip groove 70. Adjusting rope channels 71 are respectively provided on the left and right sides of the adjustment block 67. The adjusting rope 63 passes through the adjusting rope channels 71, and the adjusting rope 63 is located between the two driven clamping members. The adjusting rope 63 can be directly fixed to the adjusting rope channel 71 through a locking structure; a detachable rope sleeve can also be fixed to the end of the adjusting rope 63 to facilitate the maintenance and replacement of the adjusting rope 63.

[0067] As Figure 20 shown, the driven clamping member includes a locking clip block 72 fixed to the side wall of the locking clip groove 70. A stepped locking sliding groove 73 is formed in the locking clip block 72. A locking sliding rod 74 is slidably fitted in the locking sliding groove 73. A locking pressing head 75 is provided on one side of the locking sliding rod 74, and a locking pressing plate 76 is provided on the other side of the locking sliding rod 74. An anti-disengagement ring is provided on the locking sliding rod 74 to prevent the locking sliding rod 74 from disengaging from the locking sliding groove 73. A sliding rod spring 77 is sleeved on the locking sliding rod 74 to force the locking pressing head 75 to be located outside the locking sliding groove 73.

[0068] As Figure 21-22 shown, the protection locking mechanism includes a protection locking seat 78 with a U-shaped cross-section. Protection locking sliding grooves 79 are provided at both ends of the protection locking seat 78. Guide channels 80 are formed on the upper and lower sides of the protection locking sliding grooves 79. A driving sliding plate 81 is slidably fitted in the protection locking sliding grooves 79. The driving sliding plate 81 includes parallel segments on both sides and an inclined plane segment in the middle. A sliding channel 82 with a rectangular cross-section is formed on the side of the driving sliding plate 81. A guide sliding column 83 is slidably fitted in the guide channel 80. The guide sliding column 83 and both ends of the driving sliding plate 81 are fixed as a whole through a driving connecting plate 84. A protection column channel 85 with a rectangular cross-section is formed at the bottom of the protection locking sliding groove 79. A protection sliding column 86 is slidably fitted in the protection column channel 85. The outer side of the protection sliding column 86 passes through the sliding channel 82 and is fixed to a driven plate 87. A protection card plate 88 is provided on the inner side of the protection sliding column 86, and the protection card plate 88 has an inclined plane corresponding to the anti-disengagement card 68. A compression spring is sleeved on the protection sliding column 86, and the compression spring is used to force the driven plate 87 to contact the side of the driving sliding plate 81. The stiffness coefficient of the compression spring is much larger than that of the sliding rod spring 77.

[0069] As Figure 23-24As shown, when it is necessary to hoist an irregular object to be hoisted, the electromagnet 56 attracts the four corners of the object to be hoisted, the adjustment push rod 61 is extended, and the relative position of the hoisting adjustment mechanism in the hoisting adjustment channel 60 is changed to make the adjustment rope 63 straight; the adjustment locking cylinder 66 is extended, and the protection card plate 88 first contacts the inclined surface of the anti-slip card 68, and the protection card plate 88 is stretched open under the action of the anti-slip card 68; after the protection card plate 88 is separated from the anti-slip card 68, under the action of the compression spring, the protection card plate 88 quickly returns to its position; the protection card plate 88 squeezes the locking pressure head 75, the locking slide bar 74 slides along the locking slide groove 73, and the locking pressure plate 76 clamps the adjustment rope 63 for protection; when the adjustment push rod 61 encounters a fault and fails, the right side of the protection card plate 88 contacts the left side of the anti-slip card 68 , it can be avoided that after lifting, when the adjustment push rod fails, the protection card plate 88 can prevent the lifting adjustment mechanism from sliding and falling; when the lifting object moves to the release position, the lower surface of the lifting object can be parallel to the ground, and the lifting object is released; the adjustment locking cylinder 66 continues to extend, the left side of the driving slide plate 81 contacts the unlocking card plate 69, and the driving slide plate 81 slides to the right side relative to the protection locking seat 78, and the driving slide plate 81 squeezes the driven plate 87, so that the protection card plate 88 moves away, and the spacing of the protection card plates 88 is greater than the spacing of the anti-dropping card 68; the adjustment locking cylinder 66 is retracted, and the right side of the driving slide plate 81 contacts the adjustment locking base plate 65, so that the driving slide plate 81 slides to the left side relative to the protection locking seat 78, and the protection card plate 88 returns to its original state under the action of the compression spring.

[0070] The following points need to be explained: (1) The drawings of the embodiments of the present invention only relate to the structures related to the embodiments of the present invention, and other structures may refer to the general design.

[0071] (2) For the sake of clarity, in the drawings used to describe the embodiments of the present invention, the thickness of the layers or regions is exaggerated or reduced, that is, these drawings are not drawn according to the actual scale. It is understood that when an element such as a layer, film, region or substrate is referred to as being "on" or "under" another element, the element may be "directly" "on" or "under" the other element or there may be intermediate elements.

[0072] (3) In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to obtain new embodiments.

[0073] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. The protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. An overhead crane lifting system, characterized in that, The invention comprises a trolley support arranged on the ground and a trolley unit matched with the trolley support, the trolley unit moves along the trolley support; the trolley unit is provided with a trolley moving beam (1), the trolley unit is matched with the trolley moving beam (1), and the trolley unit moves along the trolley moving beam (1); the trolley unit is provided with a hoisting unit, the operating end of the hoisting unit is connected to a hoisting connection mechanism; the hoisting connection mechanism is used to fix the object to be hoisted; the trolley support comprises a support leg (3) and a trolley cross beam (2) arranged on the support leg (3); monitoring cameras are respectively provided on both sides of the trolley support and on both sides of the trolley moving beam (1), the monitoring cameras are used to monitor the operating environment and equipment status of the overhead crane in real time, and realize the monitoring of the position of the trolley, the trolley and the lifting status of the overhead crane; The surveillance camera is connected to the NVR through a switch, and the NVR is used to centrally store multi-channel video surveillance data of the overhead crane operation site.

2. The overhead crane lifting system according to claim 1, characterized in that, The trolley unit comprises a trolley fixed beam (5) and trolley moving components arranged on both sides of the trolley fixed beam (5); the middle of the trolley fixed beam (5) is fixed to the trolley moving beam (1) by installing an angle plate (6); the trolley moving component is used to drive the trolley unit to move along the trolley support as a whole; a guide brake mechanism is relatively provided at the middle position of the trolley fixed beam (5); the guide brake mechanism is used to guide and correct deviation when the trolley unit is in emergency braking, and to perform auxiliary braking at the same time.

3. The overhead crane lifting system according to claim 1, characterized in that, The guide brake mechanism comprises a guide brake base (9) and a guide brake push rod (10) arranged on the mounting angle plate (6); the guide brake push rod (10) is arranged on the guide brake base (9); a push head of the guide brake push rod (10) passes through the guide brake base (9) and is fixed to the guide brake base plate (11); guide fixing seats (12) with n-shaped cross-sections are arranged on both sides of the guide brake base plate (11); a guide movable column (13) is slidably matched on the guide fixing seat (12); an anti-drop plate (14) is provided at the end of the guide movable column (13); the other side of the guide movable column (13) is connected to the guide fixing seat (12); A guide movable plate (15) with an L-shaped cross-section is provided, and two guide wheels (16) are arranged on the vertical sides of the guide movable plate (15) opposite to each other; a guide buffer spring (17) is passed through the guide movable column (13), and the guide buffer spring (17) is clamped between the guide fixed seat (12) and the guide movable plate (15); a brake fixed plate (18) is arranged on the inner side of the guide fixed seat (12), and a brake slide shaft (19) is slidably matched at the end of the brake fixed plate (18); a brake movable plate (20) is fixed on the other side of the brake slide shaft (19); and a brake buffer spring (21) is passed through the brake slide shaft (19).

4. The overhead crane lifting system according to claim 3, wherein A vertical brake plate (22) is provided on the lower side of the guide movable plate (15), and the vertical brake plate (22) is slidably matched with the horizontal side of the guide movable plate (15) through a vertical sliding shaft (23); the upper side of the vertical sliding shaft (23) is fixed to a brake linkage plate (24); a brake linkage channel (25) is provided on the guide movable plate (15) and the guide movable column (13); the brake linkage plate (24) is fixed to one end of a brake rope (26), and the other end of the brake rope (26) is fixedly passed through; the brake linkage channel (25) is fixed to the guide fixed seat (12), and a vertical return spring (27) is passed through the guide movable column (13).

5. The overhead crane lifting system according to claim 3, wherein, A locking slide shaft (28) is slidably engaged in the middle of the upper side of the trolley fixed beam (5), the bottom of the locking slide shaft (28) has an anti-slip structure, and a locking return spring (29) is provided on the lower side of the locking slide shaft (28), and the locking return spring (29) is clamped between the trolley fixed beam (5) and the anti-slip structure of the locking slide shaft (28); the upper side of the locking slide shaft (28) is connected to a locking block (30) with a U-shaped cross section; and ear plates (31) are provided on both sides of the locking block (30) in opposite directions; a locking guide base plate (32) with an L-shaped cross section is provided on the inner side of the guide brake base (9), and an L-shaped locking guide channel (33) is provided on the locking guide base plate (32), one end of a locking rope (34) is connected to the ear plate (31), and the other end of the locking rope (34) passes through the locking guide channel (33) and is connected to the side of the guide brake base plate (11).

6. The overhead crane lifting system according to claim 1, wherein The hoisting unit comprises a hoisting motor (38) fixed to one side of the trolley unit, and also comprises a reeling frame (39) fixed to the other side of the trolley unit; a hoisting rope (40) is reeled in the reeling frame (39), and the other end of the hoisting rope (40) is connected to a hook (41); reeling brackets (42) are arranged on opposite sides of the reeling frame (39), the reeling brackets (42) are fixed to the trolley unit, and the reeling frame (39) is rotatably matched with the reeling brackets (42) via a reeling shaft (44); a driving gear (43) is keyed to the motor shaft of the hoisting motor (38), the reeling shaft (44) extends out of the reeling bracket (42) and is keyed to a driven gear (45), and the driving gear (43) and the driven gear (45) are connected to each other via a chain (46); A locking assembly is fixed on the outer side of (42), and the locking assembly is used to lock the lifting rope (40) after the lifting motor (38) stops; the locking assembly includes a winding roller (47) that rotates with the winding bracket (42); a locking bracket (48) is provided on the upper side of the winding bracket (42), and a locking cylinder (49) is provided on the upper side of the locking bracket (48), and a push head of the locking cylinder (49) extends downward from the locking bracket (48) and is fixed to the locking plate (50), and a locking pressure block (51) is provided on the lower side of the locking plate (50), and the lower side of the locking pressure block (51) has a groove corresponding to the cylindrical cross-section of the winding roller (47); the lifting rope (40) in the winding frame (39) bypasses the winding roller (47) and is connected to the lifting connection mechanism through the hook (41).

7. The overhead crane hoisting system according to claim 6, characterized in that, The middle of the retractable supporting roller (47) has a cylindrical cross-section, and both sides have serrated cross-sections; floating locking shafts (52) are slidably fitted on both sides of the locking plate (50); an anti-disengagement structure is provided on the upper side of the floating locking shaft (52), a floating locking block (53) is fixed on the lower side of the floating locking shaft (52), and the floating locking block (53) has a serrated groove structure corresponding to the serrated cross-sections on both sides of the retractable supporting roller (47); a floating locking spring (54) is sleeved on the floating locking shaft (52) between the floating locking block (53) and the locking plate (50).

8. A crane lifting system according to claim 1, characterized in that, The hoisting connection mechanism includes a hoisting connection frame (55) with an N-shaped cross-section and an electromagnet (56) connected to the hoisting connection frame (55); a reinforcing cross beam (57) is vertically provided on the upper side of the hoisting connection frame (55); a sling channel (58) is provided on the reinforcing cross beam (57), and an annular sling rope (59) is provided in the sling channel (58); the hoisting connection mechanism is connected to the hoisting unit through the sling rope (59); four hoisting adjustment channels (60) are respectively provided on both sides of the hoisting connection frame (55); adjustment push rods (61) are respectively provided on the side parts of the hoisting connection frame (55), and the push heads of the adjustment push rods (61) extend into the hoisting adjustment channels (60) to be connected with the hoisting adjustment mechanism; a rope guide wheel (62) is provided at the end of the hoisting adjustment channel (60), and a rope passing channel (64) is opened on the lower side of the end of the hoisting adjustment channel (60); one end of the adjustment rope (63) is connected to the electromagnet (56), and the other end of the adjustment rope (63) passes through the rope passing channel (64), bypasses the rope guide wheel (62) and then is connected to the hoisting adjustment mechanism; an adjustment locking base plate (65) is provided on the side opposite to the hoisting adjustment channel (60) and the hoisting adjustment mechanism, an adjustment locking cylinder (66) is provided on the adjustment locking base plate (65), and the push head of the adjustment locking cylinder (66) penetrates through the adjustment locking base plate (65) to be connected with the protection locking mechanism; the protection locking mechanism is used to lock the hoisting adjustment mechanism.

9. The overhead crane hoisting system according to claim 8, wherein, The hoisting adjustment mechanism includes an adjustment block (67), convex parts are provided on the upper and lower sides of the adjustment block (67), and the convex parts are used for slidingly fitting with the grooves opened in the hoisting adjustment channels (60); anti-disengagement cards (68) with triangular cross-sections are provided on both sides of the adjustment block (67), and an unlocking card plate (69) with an L-shaped cross-section is provided on the other side of the adjustment block (67); a through locking clip groove (70) is provided on the side part of the adjustment block (67), driven clamping parts are provided on both sides of the locking clip groove (70), adjustment rope channels (71) are respectively provided on the left and right sides of the adjustment block (67), the adjustment rope (63) passes through the adjustment rope channels (71), and the adjustment rope (63) is located between the two driven clamping parts.

10. A crane lifting system according to claim 9, characterized in that, The protection locking mechanism includes a protection locking seat (78) with a U-shaped cross-section. At both ends of the protection locking seat (78), there are protection locking chutes (79). On the upper and lower sides of the protection locking chutes (79), there are guiding channels (80). A driving slide plate (81) is slidably fitted in the protection locking chutes (79). The driving slide plate (81) includes parallel sections on both sides and an inclined section in the middle. A sliding channel (82) with a rectangular cross-section is formed on the side of the driving slide plate (81). A guiding slide post (83) is slidably fitted in the guiding channel (80). The guiding slide post (83) and both ends of the driving slide plate (81) are fixed as a whole through driving connecting plates (84). At the bottom of the protection locking chute (79), there is a protection post channel (85) with a rectangular cross-section. A protection slide post (86) is slidably fitted in the protection post channel (85). The outer side of the protection slide post (86) passes through the sliding channel (82) and is fixed to a driven plate (87). On the inner side of the protection slide post (86), there is a protection clamping plate (88). The protection clamping plate (88) has an inclined surface corresponding to the anti-disengagement clamp (68). A compression spring is sleeved on the protection slide post (86), and the spring constant of the compression spring is much larger than that of the slide bar spring (77).

Images