hoist

Abstract

This utility model relates to the field of lifting equipment, and more particularly to a hoist, comprising a rotating base, a vertically mounted lifting frame on the rotating base, a vertically mounted lifting mechanism on the lifting frame, and a vertically sliding rotating frame on the lifting frame. By setting a rotating base that can rotate as a whole and a rotating frame that can rotate independently, this utility model enables the placement frame to perform both vertical lifting and horizontal rotation and pitch angle adjustment, greatly expanding the material placement range and flexibility, and meeting the needs of complex working conditions. The lifting function is achieved through the cooperation of the lifting mechanism with the slide rails and sliders on the lifting frame. Chain drive ensures the synchronization of power transmission, ball screw pairs ensure transmission accuracy and stability, and the guide rail and slider mechanism effectively limits the swaying of moving parts, ensuring high precision and high stability of the overall lifting process.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, and in particular to a lifting machine. Background Technology

[0002] In industrial production, logistics warehousing, and specific assembly processes, lifting equipment is widely used for the vertical conveying and precise positioning of materials. Existing lifting equipment often has limited functionality, mostly offering only simple lifting capabilities, which is insufficient to meet the demands of modern intelligent production lines for multi-angle and multi-directional material transfer. While some equipment attempts to incorporate rotation functions, these typically suffer from complex structures, poor motion stability, large space requirements, and inadequate dustproof sealing. For example, in clean environments where external dust contamination must be avoided, traditional open-type lifting mechanisms struggle to effectively protect internal transmission components. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a hoisting mechanism.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] The hoist includes a rotating base, on which a lifting frame is vertically mounted, and on which a lifting mechanism is vertically mounted. A rotating frame is vertically slidably mounted on the lifting frame. The rotating frame is vertically displaced on the lifting frame by the drive of the lifting mechanism. A dustproof cloth is provided on the upper surface of the rotating base and outside the lifting frame. The upper and lower ends of the dustproof cloth are fixedly connected to the upper and lower ends of the front surface of the outer shell. The rotating frame is vertically slidable on the front surface of the outer shell. A placement frame is rotatably mounted on the end of the rotating frame away from the lifting frame.

[0006] The rotating frame includes a mounting plate with a protective cover on its exterior. A slider connecting frame is located on the side of the protective cover away from the placement frame, and the slider connecting frame is slidably fitted onto the lifting frame. A second external tooth rotary support base is rotatably mounted on the side of the mounting plate away from the slider connecting frame. A second gear disk is rotatably mounted on the side of the mounting plate located on the side of the second external tooth rotary support base. A first rotary servo motor assembly for assembly and connection with the second gear disk is located on the side of the mounting plate away from the second gear disk. A connector is fixedly connected to the front side of the second external tooth rotary support base, and the placement frame is located in front of the connector.

[0007] In addition, the preferred structure is that the slider connecting frame includes an outer shell plate, one end of which is connected to the protective cover, and the other end is connected to a slider connecting plate. The slider connecting plate is slidably fitted on the lifting frame. Dustproof cloth guide wheels are symmetrically rotated between the two outer shell plates, and the dustproof cloth is threaded through the dustproof cloth guide wheels.

[0008] Furthermore, in a preferred configuration, a first external tooth rotary support base is rotatably mounted on the upper surface of the rotating base, a lifting frame is mounted on the upper surface of the first external tooth rotary support base, and a second rotary servo motor assembly is mounted on one side of the lifting frame on the upper surface of the first external tooth rotary support base. The bottom output end of the second rotary servo motor assembly is fitted with a first gear disk that meshes with the first external tooth rotary support base.

[0009] In addition, a preferred structure is that a motor cover is provided on the rear surface of the outer casing, a control panel is provided on the side of the outer casing adjacent to the motor cover, a sheet metal cover is provided on the outside of the rotating base, and a control box is provided on the lifting frame above the lifting mechanism.

[0010] In addition, a preferred structure is that slide rails are symmetrically arranged on the front surface of the lifting frame, and sliders are symmetrically slidably fitted on the slide rails on both sides. The sliders are installed on the side surface of the slider connecting plate away from the outer shell plate.

[0011] Furthermore, in a preferred configuration, the lifting mechanism includes a lifting servo motor assembly and a ball screw. The ball screw is vertically rotatably mounted on the frame between the two slide rails of the lifting frame, and the lifting servo motor assembly is vertically mounted on the side of the lifting frame away from the ball screw.

[0012] Furthermore, in a preferred configuration, a first sprocket is mounted and connected to the bottom output end of the lifting servo motor assembly, and a second sprocket is mounted and connected to the bottom of the ball screw. The first sprocket and the second sprocket are located on the same plane, and a slide block is slidably fitted on the ball screw. The slide block is connected to the slider connecting plate.

[0013] In addition, a preferred structure is that the placement frame includes a mounting crossbar, which is horizontally fixedly connected to the connector head, and placement rods are fixedly connected to both ends of the connector head.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. By setting up a rotating base that can rotate as a whole and a rotating frame that can rotate independently, the placement frame can not only be raised and lowered vertically, but also rotate and adjust the pitch angle in the horizontal plane. This greatly expands the range and flexibility of material placement and meets the needs of use under complex working conditions. The lifting function is achieved by the lifting mechanism cooperating with the slide rails and sliders on the lifting frame. The chain drive ensures the synchronization of power transmission, the ball screw pair ensures the transmission accuracy and stability, and the guide rail slider mechanism effectively limits the shaking of moving parts, ensuring high precision and high stability of the overall lifting process.

[0016] 2. The dustproof cloth is fixed to the outer shell at the top and bottom, with its middle section passing through the dustproof cloth guide wheel on the slider connecting frame. This design can effectively close the operating window where the lifting frame is located when the rotating frame drives the placement frame to rise and fall, preventing dust and impurities from entering the equipment and contaminating the precision transmission components, thus extending the service life of the equipment. It is especially suitable for working environments that require a high degree of cleanliness. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the hoist;

[0018] Figure 2 This is a structural diagram of the control panel and motor cover;

[0019] Figure 3 This is a schematic diagram of the internal structure of the outer shell;

[0020] Figure 4 This is a schematic diagram of the lifting mechanism;

[0021] Figure 5 This is a structural diagram of the shelf;

[0022] Figure 6 This is a schematic diagram of the internal structure of the protective shield;

[0023] Figure 7 This is a schematic diagram of the rotating frame.

[0024] Figure 8 This is a schematic diagram of the slider connecting frame.

[0025] In the diagram: 01 Sheet metal casing, 02 Control box, 1 Rotary base, 11 First external gear slewing bearing base, 12 First gear disc, 2 Outer casing, 3 Rotary frame, 31 Protective cover, 32 Mounting plate, 33 Slider connecting frame, 331 Outer casing plate, 332 Dustproof cloth guide wheel, 333 Slider connecting plate, 34 Second external gear slewing bearing base, 35 Second gear disc, 36 First rotary servo motor assembly, 37 Connector, 4 Control panel, 5 Motor cover, 6 Second rotary servo motor assembly, 7 Lifting mechanism, 71 Lifting servo motor assembly, 72 First sprocket, 73 Ball screw, 74 Second sprocket, 75 Slide, 8 Lifting frame, 81 Slide rail, 82 Slider, 9 Dustproof cloth, 10 Placement frame, 101 Mounting crossbar, 102 Placement rod. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Reference Figure 1-8The hoist includes a rotating base 1, a lifting frame 8 vertically mounted on the rotating base 1, a lifting mechanism 7 vertically mounted on the lifting frame 8, and a rotating frame 3 vertically sliding on the lifting frame 8. The rotating frame 3 is vertically displaced on the lifting frame 8 by the drive of the lifting mechanism 7. A dustproof cloth 9 is provided on the upper surface of the rotating base 1 and outside the lifting frame 8. The upper and lower ends of the dustproof cloth 9 are fixedly connected to the upper and lower ends of the front surface of the outer shell 2. The rotating frame 3 is vertically sliding on the front surface of the outer shell 2. A placement frame 10 is rotatably mounted on the end of the rotating frame 3 away from the lifting frame 8. The placement frame 10 can be lifted up and down and rotated.

[0028] Meanwhile, the rotating frame 3 includes a mounting plate 32, and a protective cover 31 is provided on the outside of the mounting plate 32. A slider connecting frame 33 is provided on the side surface of the protective cover 31 away from the placement frame 10. The slider connecting frame 33 is slidably engaged on the lifting frame 8. A second external tooth rotary support base 34 is rotatably provided on the side surface of the mounting plate 32 away from the slider connecting frame 33. A second gear disk 35 is rotatably provided on the side of the mounting plate 32 located on the second external tooth rotary support base 34. A first rotary servo motor assembly 36 for assembly and connection with the second gear disk 35 is provided on the side surface of the mounting plate 32 away from the second gear disk 35. A connector 37 is fixedly connected to the front side of the second external tooth rotary support base 34. The placement frame 10 is located in front of the connector 37. The second external tooth rotary support base 34 is used to realize the rotation of the placement frame 10.

[0029] Furthermore, the slider connecting frame 33 includes an outer shell plate 331. One end of the outer shell plate 331 is connected to the protective cover 31, and the other end is connected to a slider connecting plate 333. The slider connecting plate 333 is slidably fitted on the lifting frame 8. Dustproof cloth guide wheels 332 are symmetrically arranged between the two outer shell plates 331. The dustproof cloth 9 is threaded through the dustproof cloth guide wheels 332. The dustproof cloth guide wheels 332 ensure that the dustproof cloth 9 does not come into contact with the slider connecting plate 333 when it moves up and down.

[0030] In addition, a first external tooth rotary support base 11 is rotatably mounted on the upper surface of the rotating base 1, and a lifting frame 8 is mounted on the upper surface of the first external tooth rotary support base 11. A second rotary servo motor assembly 6 is mounted on one side of the lifting frame 8 on the upper surface of the first external tooth rotary support base 11. A first gear disk 12 that meshes with the first external tooth rotary support base 11 is assembled and connected to the bottom output end of the second rotary servo motor assembly 6. The second rotary servo motor assembly 6 realizes the rotation of the external tooth rotary support base 11.

[0031] Among them, a motor cover 5 is provided on the rear surface of the outer shell 2, and a control panel 4 is provided on the side of the outer shell 2 adjacent to the motor cover 5. A sheet metal cover lifting mechanism 01 is provided outside the lifting mechanism of the rotating base lifting mechanism 1, and a control box lifting mechanism 02 is provided above the lifting mechanism 7.

[0032] In addition, slide rails 81 are symmetrically arranged on the front surface of the lifting frame 8, and sliders 82 are symmetrically slidably fitted on the slide rails 81 on both sides. The sliders 82 are installed on the side surface of the slider connecting plate 333 away from the outer shell plate 331, and the slide rails 81 ensure the vertical displacement of the slider connecting plate 333.

[0033] Furthermore, the lifting mechanism 7 includes a lifting servo motor assembly 71 and a ball screw 73. The ball screw 73 is vertically rotatably mounted on the frame of the lifting frame 8 located between the two slide rails 81. The lifting servo motor assembly 71 is vertically mounted on the side of the lifting frame 8 away from the ball screw 73. A first sprocket 72 is mounted and connected to the bottom output end of the lifting servo motor assembly 71. A second sprocket 74 is mounted and connected to the bottom of the ball screw 73. The first sprocket 72 and the second sprocket 74 are located on the same plane. A slide block 75 is slidably fitted on the ball screw 73. The slide block 75 is connected to the slider connecting plate 333. A chain is sleeved on the outside of the first sprocket 72 and the second sprocket 74. Through chain transmission, the lifting servo motor assembly 71 drives the ball screw 73 to rotate.

[0034] The placement rack 10 includes a mounting crossbar 101, which is horizontally fixedly connected to the connector 37. Placement rods 102 are fixedly connected to both ends of the connector 37, and the placement rods 102 are used to place items.

[0035] In this embodiment, when lifting or lowering an item, the item can be suspended on the placement rod 102. When lifting or lowering the placement rod 102, the lifting servo motor assembly 71 is driven to rotate, and the first sprocket 72 works with the chain to make the second sprocket 74 rotate synchronously, thereby making the ball screw 73 rotate. This allows the slide block 75 to work with the slider 82 to make the slider connecting plate 333 move up and down. The dustproof cloth 9 passes through the dustproof cloth guide wheel 332, so that when the front rotating frame 3 is lifted or lowered, the front of the outer shell 2 does not need to be opened. Furthermore, the second rotating servo motor assembly 6 can be driven to drive the first gear disk 12 to rotate, thereby causing the first external tooth rotary support base 11 to rotate around its axis, adjusting the orientation of the placement rod 102.

[0036] Simultaneously, the first rotary servo motor assembly 36 can be driven to rotate the second gear disk 35, thereby causing the second external tooth rotary support base 34 to rotate, thus realizing the rotation of the connector 37 and adjusting the angle of the placement rod 102.

[0037] In this invention, by setting a rotating base 1 that can rotate as a whole and a rotating frame 3 that can rotate independently, the placement frame 10 can not only be lifted vertically, but also rotate horizontally and adjust the pitch angle. This greatly expands the range and flexibility of material placement and meets the needs of use under complex working conditions. The lifting function is achieved by the lifting mechanism 7 cooperating with the slide rail 81 and slider 82 on the lifting frame 8. The chain drive ensures the synchronization of power transmission, the ball screw pair ensures the transmission accuracy and stability, and the guide rail slider mechanism effectively limits the shaking of moving parts, ensuring high precision and high stability of the overall lifting process.

[0038] The dustproof cloth 9 is fixed to the outer shell 2 at the top and bottom, with its middle section passing through the dustproof cloth guide wheel 332 on the slider connecting frame 33. This design can effectively close the operating window where the lifting frame 8 is located when the rotating frame 3 drives the placement frame 10 to rise and fall, preventing dust and impurities from entering the equipment and contaminating the precision transmission components, thus extending the service life of the equipment. It is especially suitable for working environments that require cleanliness.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hoist, comprising a rotating base (1), characterized in that, A lifting frame (8) is vertically mounted on the rotating base (1), a lifting mechanism (7) is vertically mounted on the lifting frame (8), and a rotating frame (3) is vertically slidably mounted on the lifting frame (8). The rotating frame (3) moves vertically on the lifting frame (8) driven by the lifting mechanism (7). A dustproof cloth (9) is mounted on the upper surface of the rotating base (1) and outside the lifting frame (8). The upper and lower ends of the dustproof cloth (9) are fixedly connected to the upper and lower ends of the front surface of the outer shell (2). The rotating frame (3) slides vertically on the front surface of the outer shell (2). A placement rack (10) is rotatably mounted on the end of the rotating frame (3) away from the lifting frame (8). The rotating frame (3) includes a mounting plate (32), a protective cover (31) is provided on the outside of the mounting plate (32), a slider connecting frame (33) is provided on the side surface of the protective cover (31) away from the placement frame (10), the slider connecting frame (33) is slidably fitted on the lifting frame (8), a second external tooth rotary support base (34) is rotatably provided on the side surface of the mounting plate (32) away from the slider connecting frame (33), a second gear disk (35) is rotatably provided on the side of the mounting plate (32) located on the second external tooth rotary support base (34), a first rotary servo motor assembly (36) for assembly and connection with the second gear disk (35) is provided on the side surface of the mounting plate (32) away from the second gear disk (35), a connector (37) is fixedly connected to the front side of the second external tooth rotary support base (34), and the placement frame (10) is located in front of the connector (37).

2. The hoist according to claim 1, characterized in that, The slider connecting frame (33) includes an outer shell plate (331). One end of the outer shell plate (331) is connected to the protective cover (31), and the other end is connected to a slider connecting plate (333). The slider connecting plate (333) slides on the lifting frame (8). Dustproof cloth guide wheels (332) are symmetrically rotated between the two outer shell plates (331). The dustproof cloth (9) is threaded on the dustproof cloth guide wheels (332).

3. The hoist according to claim 1, characterized in that, The rotating base (1) is rotatably provided with a first external tooth rotary support base (11) on its upper surface. The lifting frame (8) is provided on the upper surface of the first external tooth rotary support base (11). A second rotary servo motor assembly (6) is provided on one side of the lifting frame (8) on the upper surface of the first external tooth rotary support base (11). The bottom output end of the second rotary servo motor assembly (6) is equipped with a first gear disk (12) that meshes with the first external tooth rotary support base (11).

4. The hoist according to claim 1, characterized in that, A motor cover (5) is provided on the rear surface of the outer shell (2). A control panel (4) is provided on the side of the outer shell (2) adjacent to the motor cover (5). A sheet metal cover (01) is provided on the outside of the rotating base (1). A control box (02) is provided on the lifting frame (8) above the lifting mechanism (7).

5. The hoist according to claim 1, characterized in that, The lifting frame (8) has symmetrical slide rails (81) on its front surface, and sliders (82) are symmetrically slidably fitted on the slide rails (81) on both sides. The sliders (82) are installed on the side surface of the slider connecting plate (333) away from the outer shell plate (331).

6. The hoist according to claim 1, characterized in that, The lifting mechanism (7) includes a lifting servo motor assembly (71) and a ball screw (73). The ball screw (73) is vertically rotatably mounted on the frame of the lifting frame (8) located between the slide rails (81) on both sides. The lifting servo motor assembly (71) is vertically mounted on the side of the lifting frame (8) away from the ball screw (73).

7. The hoist according to claim 6, characterized in that, The bottom output end of the lifting servo motor assembly (71) is equipped with a first sprocket (72), and the bottom of the ball screw (73) is equipped with a second sprocket (74). The first sprocket (72) and the second sprocket (74) are located on the same plane. A slide block (75) is slidably fitted on the ball screw (73), and the slide block (75) is connected to the slider connecting plate (333).

8. The hoist according to claim 1, characterized in that, The placement rack (10) includes a mounting crossbar (101), which is horizontally fixedly connected to the connector (37), and the connector (37) has placement rods (102) fixedly connected to both ends.

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