Double-rope hoist structure

Abstract

The utility model discloses a double screw rod elevator structure, include: a pair of hoisting mechanism, install on the floor, be used for driving the hoist plate to go up and down, hoisting mechanism includes the hoisting frame of installing on the floor, install screw rod drive subassembly on the hoisting frame, screw rod drive subassembly is used for driving the connecting plate to go up and down, still be provided with the guide component between hoisting frame and connecting plate, the opposite side of connecting plate is equipped with the mount pad for fixing hoist plate, connecting component sets up between screw rod drive subassembly and connecting plate, is used for with connecting plate and screw rod drive subassembly swing joint, float component sets up between guide component and connecting plate, is used for with connecting plate and guide component swing joint, the utility model discloses reasonable, can effectively reduce the installation difficulty of device, can effectively reduce the influence of hoist plate sway to device hoisting when hoisting, can better satisfy the use demand.

Description

Technical Field

[0001] This utility model relates to the field of hoisting technology, specifically to a double screw hoisting structure. Background Technology

[0002] Currently, in the logistics and warehousing industry, elevators are commonly used in conveying equipment to lift or lower pallets, conveyor platforms, and other devices from one working height to another. In existing fixed conveying equipment, elevators are generally classified into single-column, double-column, or four-column structures. Regardless of the column structure, they commonly employ linear guides and sliders, or guide rods, as guiding mechanisms. These guiding mechanisms require high precision in the machining of the columns on both sides during the lifting and lowering process of the conveyor. Adjustment is necessary during installation; otherwise, increased frictional resistance may occur, or even the slider may seize up, thus affecting the overall lifting and transmission of the equipment.

[0003] For example, the utility model patent with authorization announcement number CN220827188U discloses a ball screw lifting mechanism. This device adopts a simplified structure by vertically setting the servo motor on the upper surface of the first fixed plate and setting the transmission component on the lower surface of the first fixed plate. The ball screw drives the lifting plate to move in a preset direction, thereby improving the space utilization rate and achieving the technical effects of reducing space occupancy and optimizing the structure.

[0004] However, during actual installation, the device requires frequent adjustments to ensure its accuracy before lifting can be performed. Furthermore, during lifting, the swaying of the lifting plate may exert a force perpendicular to the direction of movement (a horizontal force) on the lead screw, which may affect the normal lifting operation of the device. Utility Model Content

[0005] The purpose of this invention is to provide a double screw lifting machine structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A double-screw lifting machine structure includes: a pair of lifting mechanisms, both mounted on the floor, for driving a lifting plate to rise and fall; each lifting mechanism includes a lifting frame mounted on the floor, a screw drive assembly mounted on the lifting frame, the screw drive assembly for driving a connecting plate to rise and fall, a guide assembly further provided between the lifting frame and the connecting plate, and a mounting seat for fixing the lifting plate installed on the opposite side of the connecting plate; a connecting assembly disposed between the screw drive assembly and the connecting plate, for movably connecting the connecting plate and the screw drive assembly; and a floating assembly disposed between the guide assembly and the connecting plate, for movably connecting the connecting plate and the guide assembly.

[0008] As a preferred embodiment, the lead screw drive assembly includes a lifting lead screw rotatably mounted on a lifting frame, a lifting motor for driving the lifting lead screw to rotate is also mounted on the lifting frame, a lifting nut seat is threaded onto the lifting lead screw, and a lifting fixing seat is fixed on the lifting nut seat.

[0009] As a preferred embodiment, the guide assembly includes a lifting slide rail mounted on a lifting frame, and a lifting slide block is slidably mounted on the lifting slide rail.

[0010] As a preferred embodiment, the connecting plate is further provided with a connecting hole, the connecting assembly includes a connecting seat, the connecting plug at the end of the connecting seat passes through the connecting hole, a connecting sleeve is also inserted on the other side of the connecting plate at the position corresponding to the connecting hole, the connecting plug is inserted into the connecting plug hole on the connecting sleeve, the connecting seat is further provided with a fixing hole, a connecting bolt passes through the fixing hole, the lower end of the connecting bolt is threadedly connected to the lifting fixing seat, the lifting fixing seat is provided with a bullseye bearing, the upper end of the bullseye bearing abuts against the lower end of the connecting seat.

[0011] As a preferred embodiment, the diameter of the connecting bolt is smaller than the diameter of the fixing hole, and a connecting washer is also fitted on the connecting bolt.

[0012] As a preferred embodiment, a connecting pin is provided between the connecting sleeve and the connecting plug.

[0013] As a preferred embodiment, the connecting plate is also provided with a floating hole. The floating component includes a floating seat installed on the lifting slide, a floating block installed on the floating seat, and the end of the floating block passing through the floating hole. A floating sleeve is also inserted on the other side of the connecting plate at the position corresponding to the floating hole. The floating block is inserted into the floating hole of the floating sleeve, and the floating sleeve is fixedly connected to the floating block by bolts.

[0014] Compared with existing technologies, the beneficial effects of this utility model are as follows: By setting up a connecting component, when the lifting plate sways, the bullseye bearing facilitates the horizontal movement of the connecting seat, thereby offsetting the impact of the swaying on the movement of the lifting screw and ensuring the normal movement of the lifting screw. Simultaneously, the horizontal movement of the connecting seat reduces the precision requirements during installation, lowers the difficulty of debugging, and facilitates the installation of the device, better meeting usage needs. This utility model has a reasonable structure, effectively reducing the installation difficulty of the device and effectively reducing the impact of lifting plate swaying on the lifting process, thus better meeting usage requirements. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall three-dimensional structure of a double-screw hoist;

[0016] Figure 2 A first-view three-dimensional structural diagram of a lifting mechanism for a double-screw hoist;

[0017] Figure 3 A second-view three-dimensional structural diagram of a lifting mechanism for a double-screw hoist;

[0018] Figure 4 A three-dimensional structural diagram of the connecting seat position of a double screw hoist structure;

[0019] Figure 5 This is a first-view exploded structural diagram of a dual-screw hoist structure with a floating component hidden at the connecting seat position.

[0020] Figure 6 This is a second-view exploded structural diagram of a dual-screw hoist structure with a floating component hidden at the connecting seat position.

[0021] Figure 7 This is an exploded structural diagram of a twin-screw hoist structure with the connecting components hidden at the connecting seat location.

[0022] In the diagram: 1. Lifting mechanism; 11. Lifting frame; 12. Lifting motor; 13. Lifting screw; 14. Lifting nut seat; 15. Lifting fixed seat; 16. Bullseye bearing; 17. Connecting plate; 18. Mounting seat; 19. Lifting slide rail; 2. Reinforcing rod; 3. Lifting plate; 4. Connecting assembly; 41. Connecting hole; 42. Connecting seat; 421. Connecting groove; 422. Connecting plug; 43. Connecting bolt; 431. Connecting washer; 44. Connecting sleeve; 441. Connecting socket; 5. Floating assembly; 51. Floating hole; 52. Floating seat; 53. Floating plug; 54. Floating sleeve; 55. Floating socket. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example: Please refer to Figures 1-7A double-screw lifting mechanism structure includes: a pair of lifting mechanisms 1, both mounted on the floor, for driving a lifting plate 3 to rise and fall; each lifting mechanism 1 includes a lifting frame 11 mounted on the floor, a screw drive assembly mounted on the lifting frame 11, the screw drive assembly for driving a connecting plate 16 to rise and fall, a guide assembly is also provided between the lifting frame 11 and the connecting plate 16, and a mounting seat 17 for fixing the lifting plate 3 is installed on the opposite side of the connecting plate 16; a connecting assembly 4 is disposed between the screw drive assembly and the connecting plate 16, for movably connecting the connecting plate 16 and the screw drive assembly; a floating assembly 5 is disposed between the guide assembly and the connecting plate 16, for movably connecting the connecting plate 16 and the guide assembly. In this embodiment, a reinforcing rod 2 is also installed between the pair of lifting frames 11.

[0025] The working principle of this utility model is as follows: In specific use, the lifting mechanism 1 drives the connecting plate 16 to move upward, thereby driving the lifting plate 3 to move upward, and then driving the items on the lifting plate 3 to be lifted. Through the connection component and the floating component 5, the movable connection between the connecting plate 16 and the lifting mechanism 1 is realized, which can effectively counteract the influence of the lifting plate 3 shaking on the device during lifting and ensure the normal use of the device.

[0026] As a further embodiment, the lead screw drive assembly includes a lifting lead screw 13 rotatably mounted on the lifting frame 11, a lifting motor 12 for driving the lifting lead screw 13 to rotate is also mounted on the lifting frame 11, a lifting nut seat 14 is threaded onto the lifting lead screw 13, a lifting fixing seat 15 is fixed on the lifting nut seat 14, and the guide assembly includes a lifting slide rail 18 mounted on the lifting frame 11, a lifting slide block 19 is slidably mounted on the lifting slide rail 18.

[0027] The working principle of the lifting mechanism 1 is as follows: When lifting, the lifting motor 12 is started, which drives the lifting screw 13 to rotate, thereby causing the lifting nut seat 14 threaded on the lifting screw 13 to move, which in turn drives the connecting plate 16 to move, so that the lifting work can be carried out.

[0028] As a further embodiment, the connecting plate 16 is also provided with a connecting hole 41. The connecting assembly 4 includes a connecting seat 42. A connecting plug 422 at the end of the connecting seat 42 passes through the connecting hole 41. A connecting sleeve 44 is also inserted on the other side of the connecting plate 16 at the position corresponding to the connecting hole 41. The connecting plug 422 is inserted into the connecting plug 441 opened on the connecting sleeve 44. The connecting seat 42 is also provided with a fixing hole. A connecting bolt 43 passes through the fixing hole. The lower end of the connecting bolt 43 is threadedly connected to the lifting fixing seat 15. A bullseye bearing 151 is provided on the lifting fixing seat 15. The upper end of the bullseye bearing 151 abuts against the lower end of the connecting seat 42. In this embodiment, the diameter of the connecting bolt 43 is smaller than the diameter of the fixing hole. A connecting washer 431 is also fitted on the connecting bolt 43. A connecting pin passes between the connecting sleeve 44 and the connecting plug 422.

[0029] During connection, the connecting seat 42 is connected to the lifting fixed seat 15 by the connecting bolt 43. At this time, the bullseye bearing 151 abuts against the lower end of the connecting seat 42. Then, the connecting plug 422 is passed through the connecting hole 41. Then, the connecting sleeve 44 is inserted on the other side of the connecting plate 16 at the position corresponding to the connecting hole 41, and the connecting plug 422 is inserted into the connecting plug hole 441 of the connecting sleeve 44. Then, the connecting sleeve 44 and the connecting plug 422 are fixed by the connecting pin.

[0030] By setting the connecting component 4, when the lifting plate 3 shakes, the bullseye bearing 151 facilitates the horizontal movement of the connecting seat 42, thereby offsetting the impact of the shaking on the movement of the lifting screw 13 and ensuring the normal movement of the lifting screw 13. At the same time, the connecting seat 42 can move horizontally, which can reduce the accuracy requirements during installation, reduce the difficulty of debugging, facilitate the installation of the device, and better meet the usage requirements.

[0031] As a further embodiment, the connecting plate 16 also has a floating hole 51. The floating assembly includes a floating seat 52 mounted on the lifting slide 19, and a floating insert 53 is mounted on the floating seat 52. The end of the floating insert 53 passes through the floating hole 51. A floating sleeve 54 is also inserted on the other side of the connecting plate 16 at a position corresponding to the floating hole 51. The floating insert 53 is inserted into the floating insertion hole 55 of the floating sleeve 54, and the floating sleeve 54 is fixedly connected to the floating insert 53 by bolts. In this embodiment, the length of the floating hole 51 is greater than the length of the floating sleeve 54, allowing the floating sleeve 54 to slide back and forth within the floating hole 51.

[0032] The working principle of the floating component installation: During installation, the floating plug 53 is inserted into the floating hole 51. Then, the floating sleeve 54 is inserted on the other side of the connecting plate 16 at the position corresponding to the floating hole 51, and the floating plug 53 is inserted into the floating sleeve 54. Then, the floating sleeve 54 and the floating plug 53 are fixed with bolts to complete the installation. At this time, the connecting plate 16 can move back and forth, which can effectively reduce the impact of the shaking of the lifting plate 3 on the movement of the lifting screw 13. At the same time, it can also reduce the adjustment accuracy during installation and reduce the installation difficulty, thereby better meeting the usage requirements.

[0033] In this utility model, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various components or elements of this utility model and do not specifically refer to any component or element in this utility model. They should not be construed as limiting this utility model.

Claims

1. A structure for a double-screw hoist, characterized in that, include: A pair of lifting mechanisms (1) are installed on the floor to drive the lifting plate (3) to rise and fall; The lifting mechanism (1) includes a lifting frame (11) installed on the floor. A screw drive assembly is installed on the lifting frame (11). The screw drive assembly is used to drive the connecting plate (16) to rise and fall. A guide assembly is also provided between the lifting frame (11) and the connecting plate (16). A mounting seat (17) for fixing the lifting plate (3) is installed on the opposite side of the connecting plate (16). The connecting component (4) is disposed between the lead screw drive assembly and the connecting plate (16) for movably connecting the connecting plate (16) and the lead screw drive assembly; A floating component (5) is disposed between the guide component and the connecting plate (16) for movably connecting the connecting plate (16) to the guide component.

2. The structure of a double-screw hoist according to claim 1, characterized in that: The lead screw drive assembly includes a lifting lead screw (13) rotatably mounted on a lifting frame (11), a lifting motor (12) for driving the lifting lead screw (13) to rotate is also mounted on the lifting frame (11), a lifting nut seat (14) is threaded onto the lifting lead screw (13), and a lifting fixing seat (15) is fixed on the lifting nut seat (14).

3. The structure of a double-screw hoist according to claim 2, characterized in that: The guide assembly includes a lifting slide rail (18) mounted on a lifting frame (11), on which a lifting slide block (19) is slidably mounted.

4. The structure of a double-screw hoist according to claim 3, characterized in that: The connecting plate (16) is also provided with a connecting hole (41). The connecting component (4) includes a connecting seat (42). The connecting plug (422) at the end of the connecting seat (42) passes through the connecting hole (41). A connecting sleeve (44) is also inserted on the other side of the connecting plate (16) at the position corresponding to the connecting hole (41). The connecting plug (422) is inserted into the connecting plug (441) opened on the connecting sleeve (44). The connecting seat (42) is also provided with a fixing hole. A connecting bolt (43) passes through the fixing hole. The lower end of the connecting bolt (43) is threaded to the lifting fixing seat (15). A bullseye bearing (151) is provided on the lifting fixing seat (15). The upper end of the bullseye bearing (151) abuts against the lower end of the connecting seat (42).

5. The structure of a double-screw hoist according to claim 4, characterized in that: The diameter of the connecting bolt (43) is smaller than the diameter of the fixing hole, and a connecting washer (431) is also fitted on the connecting bolt (43).

6. The structure of a double-screw elevator according to claim 5, characterized in that: A connecting pin is inserted between the connecting sleeve (44) and the connecting plug (422).

7. The structure of a double-screw hoist according to claim 6, characterized in that: The connecting plate (16) also has a floating hole (51). The floating assembly includes a floating seat (52) installed on the lifting slide (19). A floating plug (53) is installed on the floating seat (52). The end of the floating plug (53) passes through the floating hole (51). A floating sleeve (54) is also inserted on the other side of the connecting plate (16) at the position corresponding to the floating hole (51). The floating plug (53) is inserted into the floating hole (55) of the floating sleeve (54). The floating sleeve (54) is fixedly connected to the floating plug (53) by bolts.

Images