Lifting drive of a construction elevator

Abstract

The application belongs to engineering construction equipment, and particularly relates to a lifting driving device of a construction hoist, which is used for driving a cage system of the construction hoist to lift along a guide rail frame device of the construction hoist. The lifting driving device and the guide rail frame device are separately manufactured, and after production is completed, assembly is needed again to be connected with the cage system. The lifting driving device comprises a lifting driving frame, a lifting driving assembly and a lifting driving adjusting assembly. After the lifting driving frame is connected with the guide rail frame device, the lifting driving assembly also needs to be connected with the guide rail frame device. If there is a large manufacturing error, the lifting driving assembly cannot be smoothly assembled with the guide rail frame device. In the application, the position of a lifting driving plate is adjusted by adjusting the connection between the lifting driving frame and the lifting driving plate through the lifting driving adjusting assembly, so that the position of the lifting driving assembly is adjusted, and then the influence of the manufacturing error on the connection between the guide rail part and the driving part is overcome.

Description

Technical Field

[0001] This application pertains to construction equipment, specifically to a lifting drive device for a construction hoist. Background Technology

[0002] Construction hoists are one of the important special equipment for transporting people and materials to higher places on construction sites. A construction hoist consists of a guide rail section, a drive section, and a cage section. The drive section and the guide rail section move together to drive the cage section to lift and lower. However, manufacturing errors may occur in the production process of the drive section and the guide rail section, resulting in the drive section being unable to connect effectively with the guide rail section. Utility Model Content

[0003] The purpose of this application is to provide a lifting drive device for a construction hoist, which aims to overcome the influence of manufacturing errors on the connection between the guide rail part and the drive part.

[0004] To achieve the above objectives, this application provides a lifting drive device for a construction hoist, the lifting drive device being used to drive the cage system of the construction hoist to move up and down along the guide rail frame of the construction hoist, the lifting drive device comprising: A lifting drive frame is used to connect the cage system and is slidably mounted on the guide rail frame device. A lifting drive plate is mounted on the lifting drive frame; A lifting drive assembly is used to move and cooperate with the guide rail frame device and is mounted on the lifting drive plate; A lifting drive adjustment assembly is used to adjust the connection between the lifting drive frame and the lifting drive plate.

[0005] In some embodiments, the lifting drive adjustment assembly includes: A first lifting drive adjusting ear plate and a second lifting drive adjusting ear plate are arranged at a horizontal interval. The first lifting drive adjusting ear plate is disposed on the lifting drive plate, and the second lifting drive adjusting ear plate is disposed on the lifting drive frame. The lifting drive adjusting bolt passes through the first lifting drive adjusting ear plate and the second lifting drive adjusting ear plate; A lifting drive adjusting nut is used to lock the lifting drive adjusting bolt after it passes through the first lifting drive adjusting ear plate and the second lifting drive adjusting ear plate.

[0006] In some embodiments, the number of lifting drive adjusting nuts is three, namely a first lifting drive adjusting nut, a second lifting drive adjusting nut, and a third lifting drive adjusting nut. The head of the lifting drive adjusting bolt is located on one side of the first lifting drive adjusting ear plate, the first lifting drive adjusting nut is located on the other side of the first lifting drive adjusting ear plate, the second lifting drive adjusting nut and the third lifting drive adjusting nut are respectively disposed on both sides of the second lifting drive adjusting ear plate, and the second lifting drive adjusting nut is located between the second lifting drive adjusting ear plate and the first lifting drive adjusting ear plate.

[0007] In some embodiments, a lifting drive disc spring is provided between the second lifting drive adjusting ear plate and the third lifting drive adjusting nut.

[0008] In some embodiments, the lifting drive frame includes a rectangular frame, and lifting drive mounting plates are provided at the four corners of the rectangular frame. Both the lifting drive plate and the lifting drive mounting plate have holes for the passing of lifting drive fasteners, and the holes on the lifting drive plate are different in size from those on the lifting drive mounting plate.

[0009] In some embodiments, a first lifting drive rubber pad is provided between the lifting drive plate and the lifting drive mounting plate.

[0010] In some embodiments, the lifting drive fastener includes a lifting drive fastening screw, and the lifting drive device further includes a lifting drive locking nut that is threadedly engaged with the lifting drive fastening screw. A second lifting drive rubber pad is provided between the head of the lifting drive fastening screw and the lifting drive plate.

[0011] In some embodiments, a lifting drive pressure plate is provided between the head of the lifting drive fastening screw and the lifting drive plate. The size of the lifting drive pressure plate is larger than the head of the lifting drive fastening screw. The lifting drive pressure plate is sleeved on the lifting drive fastener. The second lifting drive rubber pad is located between the lifting drive pressure plate and the lifting drive plate.

[0012] In some embodiments, the lifting drive plate is embedded in the rectangular frame, and a third lifting drive rubber pad is provided between the lifting drive plate and the rectangular frame.

[0013] In some embodiments, the lifting drive device further includes a safety limit block arranged at a distance from the lifting drive plate, the safety limit block being used for limiting cooperation with the guide rail frame device.

[0014] Through the above technical solution, the lifting drive device of the construction hoist of this application has the following beneficial effects: The lifting drive device and the guide rail frame device are manufactured separately and need to be assembled after manufacturing. Specifically, after connecting the lifting drive frame and the guide rail frame device, the lifting drive component also needs to be connected to the guide rail frame device. At this time, if there is a large manufacturing error, the lifting drive component will not be able to be successfully assembled with the guide rail frame device. In this application, the lifting drive adjustment component is used to adjust the connection between the lifting drive frame and the lifting drive plate to make the position of the lifting drive plate adjustable, thereby making the position of the lifting drive component installed on the lifting drive plate adjustable, thus overcoming the influence of manufacturing error on the connection between the guide rail part and the drive part.

[0015] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings: Figure 1 This is a schematic diagram of the lifting drive device according to a specific embodiment of this application; Figure 2 This is an assembly diagram of the lifting drive device and the guide rail frame device according to a specific embodiment of this application; Figure 3 This is a structural schematic diagram of the lifting drive device from another perspective according to a specific embodiment of this application; Figure 4 This is an exploded view of the lifting drive device according to a specific embodiment of this application; Figure 5 for Figure 4 Enlarged schematic diagram of part B in the middle; Figure 6 This is a schematic diagram of the lifting drive back wheel assembly according to a specific embodiment of this application; Figure 7 This is a schematic diagram illustrating the adjustment of the position of the lifting drive back wheel using an eccentric wheel shaft according to a specific embodiment of this application; Figure 8 This is a schematic diagram of the lifting drive side wheel assembly according to a specific embodiment of this application; Figure 9 This is a schematic diagram illustrating the adjustment of the position of the lifting drive side wheel using an eccentric wheel shaft according to a specific embodiment of this application; Figure 10 This is a schematic diagram of the lifting drive hook wheel assembly according to a specific embodiment of this application; Figure 11 This is a schematic diagram illustrating the adjustment of the lifting drive hook wheel position using an eccentric wheel shaft according to a specific embodiment of this application; Figure 12 for Figure 1 An enlarged schematic diagram of part A in the middle; Figure 13 This is a structural schematic diagram of a construction hoist according to a specific embodiment of this application.

[0017] Explanation of reference numerals in the attached figures 200. Guide rail frame device; 21. Lifting drive rack; 22. Main chord; 23. Horizontal bar; 400. Lifting drive device; 41. Lifting drive gear; 42. Lifting drive back wheel; 43. Lifting drive adjustment assembly; 431. Lifting drive adjustment bolt; 432. First lifting drive adjustment ear plate; 433. First lifting drive adjustment nut; 434. Second lifting drive adjustment nut; 435. Lifting drive disc spring; 436. Third lifting drive adjustment nut; 437. Second lifting drive adjustment ear plate; 44. Eccentric wheel shaft; 441. Reference journal; 442. Eccentric journal; 443. Roller bearing; 444. Eccentric wheel shaft fastener. 45. Nut; 451. Safety limit block; 452. Longitudinal block; 453. Transverse block; 46. Lifting drive frame; 47. Lifting drive plate; 48. Lifting drive side wheel; 49. Lifting drive hook wheel; 410. Lifting drive mounting plate; 411. First lifting drive rubber pad; 412. Lifting drive fastening screw; 413. Lifting drive locking nut; 414. Second lifting drive rubber pad; 415. Lifting drive pressure plate; 416. Third lifting drive rubber pad; 417. Lifting drive motor; 418. Back wheel protective cover; 420. Anti-smashing rain canopy; 500. Cage system. Detailed Implementation

[0018] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0019] The terminology of the lifting drive device of the construction hoist according to this application is described below with reference to the accompanying drawings.

[0020] like Figure 1 and Figure 2As shown, a specific embodiment of this application provides a lifting drive device 400 for a construction hoist, including a lifting drive frame 46, a lifting drive plate 47, a lifting drive assembly, and a lifting drive adjustment assembly 43. The lifting drive frame 46 is used to connect to the cage system 500 and is slidably mounted on the guide rail frame device 200. The lifting drive plate 47 is mounted on the lifting drive frame 46. The lifting drive assembly is used to move and cooperate with the guide rail frame device 200 and is mounted on the lifting drive plate 47. The lifting drive adjustment assembly 43 can adjustably connect the lifting drive frame 46 and the lifting drive plate 47.

[0021] The lifting drive device 400 is used to drive the cage system 500 of the construction hoist to move up and down along the guide rail frame device 200 of the construction hoist. The lifting drive device 400, the guide rail frame device 200 and the cage system 500 are manufactured separately. After production, all parts need to be assembled to form the construction hoist. Specifically, after the lifting drive frame 46 is assembled with the guide rail frame device 200, the lifting drive assembly also needs to be assembled with the guide rail frame device 200. If there is a large manufacturing error, the lifting drive assembly will not be able to be successfully assembled with the guide rail frame device 200. In this application, the lifting drive adjustment assembly 43 is used to adjust the connection between the lifting drive frame 46 and the lifting drive plate 47 to make the position of the lifting drive plate 47 adjustable, thereby making the position of the lifting drive assembly installed on the lifting drive plate 47 adjustable, thus overcoming the influence of manufacturing errors on the connection between the guide rail part and the drive part.

[0022] like Figures 3 to 5 As shown, in some embodiments, the lifting drive frame 46 and the lifting drive plate 47 are further connected by a lifting drive adjustment assembly 43. The lifting drive adjustment assembly 43 includes a first lifting drive adjustment ear plate 432, a second lifting drive adjustment ear plate 437, a lifting drive adjustment bolt 431, and a lifting drive adjustment nut. The first lifting drive adjustment ear plate 432 and the second lifting drive adjustment ear plate 437 are arranged laterally at intervals. The first lifting drive adjustment ear plate 432 is disposed on the lifting drive plate 47, and the second lifting drive adjustment ear plate 437 is disposed on the lifting drive frame 46. The lifting drive adjustment bolt 431 passes through the first lifting drive adjustment ear plate 432 and the second lifting drive adjustment ear plate 437 laterally. The lifting drive adjustment nut is used to lock the lifting drive adjustment bolt 431 after it passes through the first lifting drive adjustment ear plate 432 and the second lifting drive adjustment ear plate 437.

[0023] Since the lifting drive assembly itself and the drive rail move vertically, even if there are vertical manufacturing errors, it will not affect the assembly. Therefore, the lifting drive adjustment assembly 43 is used to overcome horizontal manufacturing errors.

[0024] Specifically, during adjustment, the lifting drive adjusting nut needs to be loosened, and then the lifting drive plate 47 is moved laterally. At this time, the first lifting drive adjusting ear plate 432 will move along the lifting drive adjusting bolt 431 as the lifting drive plate 47 moves laterally. After adjustment, the lifting drive adjusting nut is tightened again. The entire adjustment process is extremely simple, and the position of the lifting drive plate 47 is fixed by the lateral limiting cooperation between the lifting drive adjusting nut and the lifting drive adjusting ear plate, making the adjustment process more reliable.

[0025] In some embodiments, the number of lifting drive adjusting nuts is three, namely a first lifting drive adjusting nut 433, a second lifting drive adjusting nut 434, and a third lifting drive adjusting nut 436. The head of the lifting drive adjusting bolt 431 is located on one side of the first lifting drive adjusting ear plate 432, the first lifting drive adjusting nut 433 is located on the other side of the first lifting drive adjusting ear plate 432, and the second lifting drive adjusting nut 434 is located between the second lifting drive adjusting ear plate 437 and the first lifting drive adjusting ear plate 432. By providing multiple lifting drive adjusting nuts, the limiting of the first lifting drive adjusting ear plate 432 and the second lifting drive adjusting ear plate 437 is strengthened, thereby ensuring that the position of the lifting drive plate 47 is fixed after the position adjustment is completed.

[0026] Furthermore, a lifting drive disc spring 435 is provided between the second lifting drive adjusting ear plate 437 and the third lifting drive adjusting nut 436. The lifting drive disc spring 435 is used to prevent the third lifting drive adjusting nut 436 from loosening.

[0027] like Figure 4 As shown, in some embodiments, the lifting drive frame 46 includes a rectangular frame, and lifting drive mounting plates 410 are provided at the four corners of the rectangular frame. Both the lifting drive plate 47 and the lifting drive mounting plate 410 have holes for the lifting drive fasteners to pass through. The holes on the lifting drive plate 47 are different in size from the holes on the lifting drive mounting plate 410. In other words, as long as the smaller hole is within the range of the larger hole while the lifting drive plate 47 is moved, the lifting drive fasteners can pass through the lifting drive plate 47 and the lifting drive mounting plate 410. After the position adjustment of the lifting drive plate 47 is completed, the position of the lifting drive plate 47 is fixed by the lifting drive locking member used in conjunction with the lifting drive fasteners.

[0028] like Figure 4As shown, in some embodiments, a first lifting drive rubber pad 411 is provided between the lifting drive plate 47 and the lifting drive mounting plate 410 to reduce the vibration between the lifting drive plate 47 and the lifting drive mounting plate 410 during operation, thereby achieving a shock absorption effect. This not only improves the stability of the cage system 500 during the lifting process, but also reduces wear between components.

[0029] like Figure 1 and 4 As shown, in some embodiments, the lifting drive fastener includes a lifting drive fastening screw 412, and the lifting drive locking component includes a lifting drive locking nut 413. The lifting drive fastening screw 412 passes through the lifting drive plate 47 and the lifting drive mounting plate 410 in the longitudinal direction. The head of the lifting drive fastening screw 412 is located on the side of the lifting drive plate 47 that is opposite to the lifting drive mounting plate 410 in the longitudinal direction. The lifting drive locking nut 413 is located on the side of the lifting drive mounting plate 410 that is opposite to the lifting drive plate 47 in the longitudinal direction. The first lifting drive rubber pad 411 is sleeved on the lifting drive fastening screw 412.

[0030] Furthermore, a second lifting drive rubber pad 414 is also fitted on the lifting drive fastening screw 412, and the second lifting drive rubber pad 414 is located between the head of the lifting drive fastening screw 412 and the lifting drive plate 47, so as to reduce the vibration between the lifting drive plate 47 and the head of the lifting drive fastening screw 412 during operation, thereby achieving a shock absorption effect. This not only improves the stability of the cage system 500 during the lifting process, but also reduces the wear between components.

[0031] like Figure 4 As shown, in some embodiments, a lifting drive pressure plate 415 is also sleeved on the lifting drive fastening screw 412, and the size of the lifting drive pressure plate 415 is larger than the head of the lifting drive fastening screw 412. The lifting drive pressure plate 415 is located between the head of the lifting drive fastening screw 412 and the lifting drive plate 47. In other words, the lifting drive pressure plate 415 and the lifting drive mounting plate 410 clamp and fix the lifting drive plate 47. The size of the lifting drive pressure plate 415 being larger than the head of the lifting drive fastening screw 412 is more conducive to reducing the wear on the lifting drive plate 47.

[0032] Furthermore, the second lifting drive rubber pad 414 is located between the lifting drive pressure plate 415 and the lifting drive plate 47 to reduce the vibration between the lifting drive plate 47 and the lifting drive pressure plate 415 during operation, thereby achieving a shock absorption effect. This not only improves the stability of the cage system 500 during the lifting process, but also reduces wear between components.

[0033] like Figure 4As shown, in some embodiments, the lifting drive plate 47 is embedded in the rectangular frame, and a third lifting drive rubber pad 416 is provided between the lifting drive plate 47 and the rectangular frame to reduce the vibration between the lifting drive plate 47 and the lifting drive frame 46 during operation, thereby achieving a shock absorption effect. This not only improves the stability of the cage system 500 during the lifting process, but also reduces wear between components.

[0034] like Figure 2 As shown in the specific embodiment of this application, the guide rail frame device 200 includes a drive rail and a guide rail. The lifting drive device 400 further includes a drive guide component adjustablely mounted on the lifting drive frame 46. The lifting drive component interacts with the drive rail to achieve lifting. The lifting drive frame 46 is slidably mounted on the guide rail through the drive guide component. The lifting drive component interacts with and moves in coordination with the drive rail, and the drive guide component moves in coordination with the guide rail. By adding a drive guide component connected to the guide rail, the connection stability between the guide rail part and the drive part can be effectively increased. Furthermore, by adjusting both the lifting drive component and the drive guide component on the lifting drive frame 46, the spatial positions of the lifting drive component and the drive guide component can be adjusted, thereby enabling both the lifting drive component and the drive guide component to be smoothly assembled with the guide rail frame device 200.

[0035] like Figure 2 As shown in the specific embodiment of this application, the guide rail frame device 200 further includes a guide rail frame body, which includes multiple main chord rods 22 extending vertically and horizontal rods 23 connecting adjacent main chord rods 22. The main chord rods 22 can serve as guide rails, and the drive rail is installed on the horizontal rods 23. The lifting drive device body includes a lifting drive frame 46 and a lifting drive plate 47. The drive rail is located between the horizontal rods 23 and the lifting drive plate 47. The lifting drive assembly is installed on the lifting drive plate 47 and located between the horizontal rods 23 and the lifting drive plate 47 to interact with the drive rail. The drive guide assembly is installed on the lifting drive frame 46 and moves in cooperation with the main chord rods 22.

[0036] Specifically, there are two main chord rods 22, which are arranged laterally at intervals. A horizontal rod 23 extends laterally to connect the two main chord rods 22. The horizontal rod 23 and the lifting drive plate 47 are arranged longitudinally at intervals. The lifting drive frame 46 is mounted on the main chord rods 22 through a drive guide assembly.

[0037] like Figure 1 and Figure 2As shown, in some embodiments, the drive rail includes a lifting drive rack 21, which is mounted on the horizontal rod 23 by bolting or welding. The lifting drive rack 21 includes teeth and a back arranged laterally opposite each other. The teeth of the lifting drive rack 21 have a toothed structure, and the back of the lifting drive rack 21 has a planar structure. The lifting drive assembly includes a lifting drive gear 41 and a lifting drive back wheel 42. The lifting drive back wheel 42 and the lifting drive gear 41 are arranged laterally at intervals. The axle of the lifting drive back wheel 42 and the axle of the lifting drive gear 41 both extend longitudinally and are pivotally connected to the lifting drive plate 47. The lifting drive rack 21 is located between the lifting drive back wheel 42 and the lifting drive gear 41. The teeth of the lifting drive rack 21 face the lifting drive gear 41 laterally and mesh with the lifting drive gear 41. The back of the lifting drive rack 21 faces the lifting drive back wheel 42 laterally and abuts against the roller surface of the lifting drive back wheel 42.

[0038] Specifically, a lifting drive motor 417 is also installed on the lifting drive plate 47. The lifting drive motor 417 and the lifting drive gear 41 are located on both sides of the lifting drive plate 47 along the longitudinal direction. The axle of the lifting drive gear 41 passes through the lifting drive plate 47 and is coaxially connected to the output shaft of the lifting drive motor 417. The lifting drive motor 417 drives the lifting drive gear 41 to rotate and interacts with the tooth structure, so that the lifting drive device 400 is lifted as a whole, thereby driving the cage system 500 connected to the lifting drive device 400 to lift.

[0039] Furthermore, the axle axis of the lifting drive back wheel 42 is parallel to the plane on which the back of the lifting drive rack 21 is located. The lifting drive back wheel 42 and the lifting drive rack 21 are laterally limited to fit together, so that the teeth of the lifting drive gear 41 and the lifting drive rack 21 mesh better and are not easily separated during operation, thereby enhancing the connection stability between the lifting drive assembly and the drive rail.

[0040] It should be noted that, in addition to using the lifting drive rack 21 and the lifting drive gear 41 for driving, other driving methods such as worm gears, lead screws and lead screw nuts can also be used, and all driving methods are within the protection scope of this application.

[0041] In some embodiments, a protective canopy 420 is installed on the top of the lifting drive frame 46. The protective canopy 420 is located above the lifting drive motor 417 and protects the lifting drive motor 417.

[0042] like Figure 6 and Figure 7As shown, in some embodiments, the axle of the lifting drive back wheel 42 is an eccentric axle 44, and a roller bearing 443 is sleeved on the eccentric axle 44. The lifting drive back wheel 42 is connected to the roller bearing 443, and the lifting drive back wheel 42, the eccentric axle 44, and the roller bearing 443 constitute the lifting drive back wheel assembly. When manufacturing errors cause a shift in the relative positions of the lifting drive back wheel 42 and the lifting drive rack 21, the position of the lifting drive back wheel 42 is adjusted using the eccentric axle 44 to ensure that the back of the lifting drive back wheel 42 abuts against the back of the lifting drive rack 21. This ensures better meshing of the teeth of the lifting drive gear 41 and the lifting drive rack 21 and prevents them from separating during operation, thus preventing excessively tight meshing, excessively loose meshing, or failure to mesh. This overcomes the impact of manufacturing errors on the connection between the lifting drive device 400 and the guide rail device 200, while ensuring the stability of the lifting drive device 400 during the lifting process.

[0043] Specifically, the eccentric shaft 44 includes a reference journal 441 and an eccentric journal 442 connected axially. An eccentricity is provided between the axis of the reference journal 441 and the axis of the eccentric journal 442. An annular groove is formed on the outer peripheral wall of the eccentric journal 442. A roller bearing 443 is sleeved on the eccentric journal 442 and located within the annular groove. The outer ring of the roller bearing 443 is flush with the outer peripheral wall of the eccentric journal 442. The reference journal 441 passes through the lifting drive device body and is rotatably connected to the lifting drive plate 47 via a bearing. The outer ring of the roller bearing 443 is nested and connected to the lifting drive back wheel 42. Rotating the eccentric shaft 44 allows the lifting drive back wheel 42 to move in a plane perpendicular to the axis of the eccentric shaft 44, thereby adjusting the position of the lifting drive back wheel 42 and thus adjusting the distance between the lifting drive back wheel 42 and the back of the lifting drive rack 21.

[0044] Furthermore, the lifting drive back wheel assembly also includes an eccentric wheel shaft fastening nut 444 that is fastened to the reference journal 441. The eccentric wheel shaft fastening nut 444 and the lifting drive back wheel 42 are located on both sides of the lifting drive plate 47 along the longitudinal direction. After the eccentric wheel shaft 44 is rotated to adjust the lifting drive back wheel 42 into position, the reference journal 441 and the lifting drive plate 47 are locked by screwing the eccentric wheel shaft fastening nut 444 until it contacts the lifting drive plate 47, so as to restrict the relative rotation between the reference journal 441 and the lifting drive plate 47, thereby completing the position adjustment of the lifting drive back wheel 42.

[0045] In some embodiments, a back wheel protective cover 418 is fitted onto the lifting drive back wheel 42 to prevent foreign objects from entering the gap between the lifting drive back wheel 42 and the roller bearing 443, and to prevent the lifting drive back wheel 42 from falling off if it becomes loose. The back wheel protective cover 418 and the lifting drive back wheel 42 are located on the same side of the lifting drive plate 47 along the longitudinal direction, and the back wheel protective cover 418 is bolted to the lifting drive plate 47.

[0046] like Figure 8 and Figure 9 As shown, in some embodiments, the drive guide assembly includes a lifting drive side wheel 48 that rolls with the main chord 22. The roller surface of the lifting drive side wheel 48 rolls with the outer wall surface of the main chord 22, and the axle of the lifting drive side wheel 48 extends longitudinally and is connected to the lifting drive frame 46.

[0047] Specifically, the lifting drive side wheels 48 are arranged in pairs along the horizontal direction and multiple pairs along the vertical direction. The two pairs of lifting drive side wheels 48 are respectively installed on the two sides of the lifting drive frame 46 along the horizontal direction. The two main chords 22 are located between the two pairs of lifting drive side wheels 48 and are respectively in rolling cooperation with the two sets of lifting drive side wheels 48. The lifting drive device 400 and the guide rail frame device 200 are installed in a horizontal direction by the two sets of lifting drive side wheels 48 arranged at intervals along the horizontal direction and the main chords 22 in a horizontal limiting cooperation.

[0048] Furthermore, the roller surface of the lifting drive side wheel 48 is concave laterally; in other words, the roller surface of the lifting drive side wheel 48 engages with the main chord 22. Therefore, the lifting drive side wheel 48 can also achieve longitudinal positioning of the lifting drive device 400 and the guide rail frame device 200. In some embodiments, the axle of the lifting drive side wheel 48 is an eccentric axle 44, and a roller bearing 443 is fitted onto the eccentric axle 44. The lifting drive side wheel 48 is connected to the roller bearing 443, and the lifting drive side wheel 48, eccentric axle 44, and roller bearing 443 constitute the lifting drive side wheel assembly. After manufacturing errors cause a shift in the relative positions of the lifting drive side wheel 48 and the main chord 22, the position of the lifting drive side wheel 48 is adjusted using the eccentric wheel shaft 44 to ensure that the roller surface of the lifting drive side wheel 48 abuts against the outer wall surface of the main chord 22. This ensures that the lifting drive side wheel 48 and the outer wall surface of the main chord 22 are not easily separated during operation, thereby ensuring the rolling fit between the lifting drive side wheel 48 and the main chord 22. This, in turn, ensures the stability of the lifting drive device 400 during the lifting process and overcomes the impact of manufacturing errors on the connection between the lifting drive device 400 and the guide rail device 200.

[0049] In some embodiments, the axle of the lifting drive side wheel 48 is an eccentric axle 44, and a roller bearing 443 is sleeved on the eccentric axle 44. The lifting drive side wheel 48 is connected to the roller bearing 443, and the lifting drive side wheel 48, the eccentric axle 44, and the roller bearing 443 constitute the lifting drive side wheel assembly. If manufacturing errors cause a shift in the relative positions of the lifting drive side wheel 48 and the main chord 22, the position of the lifting drive side wheel 48 is adjusted using the eccentric axle 44 to ensure that the roller surface of the lifting drive side wheel 48 abuts against the outer wall surface of the main chord 22. This prevents the lifting drive side wheel 48 from separating from the outer wall surface of the main chord 22 during operation, thus ensuring the rolling fit between the lifting drive side wheel 48 and the main chord 22. This, in turn, ensures the stability of the lifting drive device 400 during the lifting process and overcomes the impact of manufacturing errors on the connection between the lifting drive device 400 and the guide rail device 200.

[0050] Specifically, the eccentric shaft 44 includes a reference journal 441 and an eccentric journal 442 connected axially. An eccentricity is provided between the axis of the reference journal 441 and the axis of the eccentric journal 442. An annular groove is formed on the outer peripheral wall of the eccentric journal 442. A roller bearing 443 is sleeved on the eccentric journal 442 and located within the annular groove, with its outer ring flush with the outer peripheral wall of the eccentric journal 442. The reference journal 441 passes through the lifting drive frame 46 and is rotatably connected to the lifting drive frame 46 via a bearing. The outer ring of the roller bearing 443 is nested with the lifting drive side wheel 48. Rotation of the eccentric shaft 44 allows the lifting drive side wheel 48 to move in a plane perpendicular to the axis of the eccentric shaft 44, thereby adjusting the position of the lifting drive side wheel 48 and thus adjusting the distance between the lifting drive side wheel 48 and the main chord 22.

[0051] Furthermore, the lifting drive side wheel assembly also includes an eccentric wheel shaft fastening nut 444 that is fastened to the reference journal 441. The eccentric wheel shaft fastening nut 444 and the lifting drive side wheel 48 are located on both sides of the lifting drive frame 46 along the longitudinal direction. After the eccentric wheel shaft 44 is rotated to adjust the lifting drive side wheel 48 to the correct position, the reference journal 441 and the lifting drive frame 46 are locked by screwing the eccentric wheel shaft fastening nut 444 until it contacts the lifting drive frame 46, so as to restrict the relative rotation between the reference journal 441 and the lifting drive frame 46, thereby completing the position adjustment of the lifting drive side wheel 48.

[0052] like Figure 10 and Figure 11 As shown, in some embodiments, the drive guide assembly further includes a lifting drive hook wheel 49 that rolls with the main chord 22. The roller surface of the lifting drive hook wheel 49 rolls with the outer wall surface of the main chord 22, and the wheel axle of the lifting drive hook wheel 49 extends laterally and is connected to the lifting drive frame 46.

[0053] Specifically, the lifting drive hooks 49 are arranged in pairs along the horizontal direction and multiple pairs along the vertical direction. The two pairs of lifting drive hooks 49 are respectively installed on the two sides of the lifting drive frame 46 along the horizontal direction. The two main chords 22 are respectively in rolling cooperation with the two sets of lifting drive hooks 49. The lifting drive hooks 49 are located on the outer side of the main chords 22 along the longitudinal direction. The lifting drive device 400 and the guide rail frame device 200 are limited in the longitudinal direction by the lifting drive hooks 49 and the main chords 22 in a limiting cooperation.

[0054] Furthermore, the roller surface of the lifting drive hook wheel 49 is concave in the longitudinal direction. In other words, the roller surface of the lifting drive hook wheel 49 is engaged with the main chord 22. It can be seen that the lifting drive hook wheel 49 can also realize the lateral positioning installation of the lifting drive device 400 and the guide rail frame device 200.

[0055] In some embodiments, the axle of the lifting drive hook wheel 49 is an eccentric axle 44, and a roller bearing 443 is sleeved on the eccentric axle 44. The lifting drive hook wheel 49 is connected to the roller bearing 443, and the lifting drive hook wheel 49, the eccentric axle 44, and the roller bearing 443 constitute the lifting drive side wheel assembly. If manufacturing errors cause a shift in the relative positions of the lifting drive hook wheel 49 and the main chord 22, the position of the lifting drive hook wheel 49 is adjusted using the eccentric axle 44 to ensure that the roller surface of the lifting drive hook wheel 49 abuts against the outer wall surface of the main chord 22. This prevents the lifting drive hook wheel 49 from separating from the outer wall surface of the main chord 22 during operation, thus ensuring the rolling fit between the lifting drive hook wheel 49 and the main chord 22. This, in turn, ensures the stability of the lifting drive device 400 during the lifting process and overcomes the impact of manufacturing errors on the connection between the lifting drive device 400 and the guide rail frame device 200.

[0056] Specifically, the eccentric shaft 44 includes a reference journal 441 and an eccentric journal 442 connected axially. An eccentricity is provided between the axis of the reference journal 441 and the axis of the eccentric journal 442. An annular groove is formed on the outer peripheral wall of the eccentric journal 442. A roller bearing 443 is sleeved on the eccentric journal 442 and located within the annular groove, with its outer ring flush with the outer peripheral wall of the eccentric journal 442. The reference journal 441 passes through the lifting drive frame 46 and is rotatably connected to the lifting drive frame 46 via a bearing. The outer ring of the roller bearing 443 is nested and connected to the lifting drive hook wheel 49. Rotation of the eccentric shaft 44 allows the lifting drive hook wheel 49 to move in a plane perpendicular to the axis of the eccentric shaft 44, thereby adjusting the position of the lifting drive hook wheel 49 and thus adjusting the distance between the lifting drive hook wheel 49 and the main chord 22.

[0057] Furthermore, the lifting drive hook wheel assembly also includes an eccentric wheel shaft fastening nut 444 that is fastened to the reference journal 441. The eccentric wheel shaft fastening nut 444 and the lifting drive hook wheel 49 are located on both sides of the lifting drive frame 46 in the lateral direction. After the lifting drive hook wheel 49 is adjusted to the position by rotating the eccentric wheel shaft 44, the reference journal 441 and the lifting drive frame 46 are locked by screwing the eccentric wheel shaft fastening nut 444 until it contacts the lifting drive frame 46, so as to restrict the relative rotation between the reference journal 441 and the lifting drive frame 46, thereby completing the position adjustment of the lifting drive hook wheel 49.

[0058] Thus, the specific embodiments of this application provide two methods to overcome manufacturing errors and smoothly complete the assembly of the lifting drive device 400 and the guide rail device 200. The first method is to adjust the relative position of the lifting drive plate 47 and the lifting drive frame 46 by adjusting the lifting drive adjustment component 43. The second method is to adjust the relative position of the lifting drive back wheel 42, the lifting drive side wheel 48, and the lifting drive hook wheel 49 with the lifting drive frame 46 by adjusting the eccentric wheel shaft 44. In fact, the first method achieves a larger positional movement, while the second method achieves a smaller positional movement. In other words, the first method can solve the assembly problem caused by a large manufacturing error, while the second method can solve the assembly problem caused by a small manufacturing error. Alternatively, the first method can be used for coarse adjustment, and the second method can be used for fine adjustment to solve the assembly problem caused by manufacturing errors, thereby overcoming the influence of manufacturing errors on the connection between the drive part and the guide rail part.

[0059] Among them, the lifting drive device 400 and the guide rail device 200 are assembled with the lifting drive gear 41 and the lifting drive rack 21, the lifting drive back wheel 42 and the back of the lifting drive rack 21 are in rolling engagement, the roller surface of the lifting drive side wheel 48 is in rolling engagement with the outer wall surface of the main chord 22, the roller surface of the lifting drive hook wheel 49 is in rolling engagement with the outer wall surface of the main chord 22, and so on.

[0060] like Figure 1 and Figure 12 As shown, in some embodiments, the lifting drive device 400 further includes a safety limit block 45 connected to the lifting drive plate 47. The safety limit block 45 is used to limit the engagement with the drive rail to prevent the lifting drive assembly from separating from the drive rail, thereby improving safety.

[0061] Specifically, the safety limiting block 45 includes a longitudinal block portion 451 connected to the lifting drive plate 47 and a transverse block portion 452 connected to the end of the longitudinal block portion 451. The transverse block portion 452 and the lifting drive plate 47 are arranged longitudinally at intervals. The transverse block portion 452 limits the drive rail longitudinally, and the longitudinal block portion 451 limits the drive rail laterally. If the lifting drive hook wheel 49 is disengaged, the transverse block portion 452 of the safety limiting block 45 contacts the drive rail to prevent the lifting drive device 400 from separating from the drive rail longitudinally; if the lifting drive back wheel 42 is disengaged, the longitudinal block portion 451 of the safety limiting block 45 contacts the drive rail to prevent the lifting drive device 400 from separating from the drive rail laterally.

[0062] Furthermore, there are multiple safety limit blocks 45, and the multiple safety limit blocks 45 are arranged at vertical intervals.

[0063] like Figure 13 As shown, this application also provides a construction hoist, including the aforementioned lifting drive device for a construction hoist, the lifting drive device being connected to the cage system of the construction hoist. Since the construction hoist employs all embodiments of the lifting drive device, it possesses all the beneficial effects brought about by the lifting drive device.

[0064] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0065] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0066] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0067] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A lifting drive device for a construction hoist, characterized in that, The lifting drive device (400) is used to drive the cage system (500) of the construction hoist to move up and down along the guide rail frame device (200) of the construction hoist. The lifting drive device (400) includes: A lifting drive frame (46) is used to connect the cage system (500) and is slidably mounted on the guide rail frame device (200); A lifting drive plate (47) is mounted on the lifting drive frame (46); A lifting drive assembly is used to move and cooperate with the guide rail frame device (200) and is mounted on the lifting drive plate (47); The lifting drive adjustment assembly (43) is used to adjust the connection between the lifting drive frame (46) and the lifting drive plate (47).

2. The lifting drive device according to claim 1, characterized in that, The lifting drive adjustment assembly (43) includes: A first lifting drive adjustment ear plate (432) and a second lifting drive adjustment ear plate (437) are arranged at a horizontal interval. The first lifting drive adjustment ear plate (432) is disposed on the lifting drive plate (47), and the second lifting drive adjustment ear plate (437) is disposed on the lifting drive frame (46). A lifting drive adjusting bolt (431) passes through the first lifting drive adjusting ear plate (432) and the second lifting drive adjusting ear plate (437); and, A lifting drive adjusting nut is used to lock the lifting drive adjusting bolt (431) after it passes through the first lifting drive adjusting ear plate (432) and the second lifting drive adjusting ear plate (437).

3. The lifting drive device according to claim 2, characterized in that, The number of lifting drive adjusting nuts is three, namely the first lifting drive adjusting nut (433), the second lifting drive adjusting nut (434), and the third lifting drive adjusting nut (436). The head of the lifting drive adjusting bolt (431) is located on one side of the first lifting drive adjusting ear plate (432), the first lifting drive adjusting nut (433) is located on the other side of the first lifting drive adjusting ear plate (432), the second lifting drive adjusting nut (434) and the third lifting drive adjusting nut (436) are respectively located on both sides of the second lifting drive adjusting ear plate (437), and the second lifting drive adjusting nut (434) is located between the second lifting drive adjusting ear plate (437) and the first lifting drive adjusting ear plate (432).

4. The lifting drive device according to claim 3, characterized in that, A lifting drive disc spring (435) is provided between the second lifting drive adjusting ear plate (437) and the third lifting drive adjusting nut (436).

5. The lifting drive device according to claim 1, characterized in that, The lifting drive frame (46) includes a rectangular frame, and lifting drive mounting plates (410) are provided at the four corners of the rectangular frame. Holes for lifting drive fasteners to pass through are provided on both the lifting drive plate (47) and the lifting drive mounting plate (410), and the holes on the lifting drive plate (47) and the lifting drive mounting plate (410) are different in size.

6. The lifting drive device according to claim 5, characterized in that, A first lifting drive rubber pad (411) is provided between the lifting drive plate (47) and the lifting drive mounting plate (410).

7. The lifting drive device according to claim 5, characterized in that, The lifting drive fastener includes a lifting drive fastening screw (412), and the lifting drive device (400) also includes a lifting drive locking nut (413) that is threadedly engaged with the lifting drive fastening screw (412). A second lifting drive rubber pad (414) is provided between the head of the lifting drive fastening screw (412) and the lifting drive plate (47).

8. The lifting drive device according to claim 7, characterized in that, A lifting drive pressure plate (415) is provided between the head of the lifting drive fastening screw (412) and the lifting drive plate (47). The size of the lifting drive pressure plate (415) is larger than the head of the lifting drive fastening screw (412). The lifting drive pressure plate (415) is sleeved on the lifting drive fastener. The second lifting drive rubber pad (414) is located between the lifting drive pressure plate (415) and the lifting drive plate (47).

9. The lifting drive device according to claim 5, characterized in that, The lifting drive plate (47) is embedded in the rectangular frame, and a third lifting drive rubber pad (416) is provided between the lifting drive plate (47) and the rectangular frame.

10. The lifting drive device according to claim 1, characterized in that, The lifting drive device (400) further includes a safety limit block (45) arranged at intervals from the lifting drive plate (47), the safety limit block (45) being used to limit the movement of the guide rail device (200).

Images