Lifting mechanism

Abstract

The utility model relates to the field of mechanical engineering, and discloses a lifting mechanism which comprises an outer box body, a motor is installed on the outer side of the outer box body, the output end of the motor is fixedly connected with a coupler, a spiral elevator is installed at the end, away from the motor, of the coupler, a threaded column is installed in the spiral elevator, and the threaded column is fixedly connected with the coupler. A second fixing plate is fixedly connected to the interior of the outer box body through mounting screws, a lifting assembly is arranged in the outer box body and comprises a lifting column, a plurality of grooves are formed in the outer side of the lifting column, and two first fixing plates are fixedly connected to the interior of the outer box body through mounting screws. According to the lifting device, the precise guide grooves are formed in the surfaces of the lifting columns and form sliding guide with the protrusions on the fixing plate, the dynamic stability and the positioning precision are greatly improved, deflection and vibration of traditional guide are effectively restrained, it is guaranteed that lifting is smooth and reliable, and the high-precision and high-stability application requirements are met.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering, and in particular to a lifting mechanism. Background Technology

[0002] Lifting mechanisms, as core functional components for achieving vertical displacement of objects, play a crucial role in numerous industrial and civilian fields. From material conveying and assembly station height adjustment on automated production lines to cargo storage and retrieval in warehousing and logistics systems, and even height control of specialized equipment such as medical equipment and stage machinery, the applications of lifting mechanisms are ubiquitous. By precisely controlling the lifting, lowering, and positioning of loads, they greatly improve production efficiency, optimize space utilization, reduce labor intensity, and provide fundamental technical support for the realization of various complex processes.

[0003] However, existing technologies still have some inherent limitations in specific application scenarios. For example, when some traditional lifting devices bear large loads or perform rapid lifting, the smoothness of their movement and the accuracy of their guidance cannot be fully guaranteed, and problems such as swaying, vibration or positioning deviation are prone to occur.

[0004] Therefore, a lifting mechanism is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a lifting mechanism, which aims to improve the problems of swaying, vibration or positioning deviation that are prone to occur in existing lifting mechanisms.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a lifting mechanism, including an outer housing, a motor installed on the outside of the outer housing, a coupling fixedly connected to the output end of the motor, a screw jack installed at the end of the coupling away from the motor, a threaded column installed inside the screw jack, a fixing plate two fixedly connected inside the outer housing by mounting screws, and a lifting assembly provided inside the outer housing.

[0007] As a further description of the above technical solution:

[0008] The lifting assembly includes a lifting column, which has multiple grooves on its outer side. The outer casing has two fixing plates fixedly connected to it by mounting screws. The inner side of the fixing plates has protrusions corresponding to the grooves.

[0009] As a further description of the above technical solution:

[0010] One end of the threaded column is fixedly connected to a top plate, and the side of the top plate away from the threaded column is fixedly connected to one end of the lifting column.

[0011] As a further description of the above technical solution:

[0012] The lifting column is slidably connected inside the outer housing, and the threaded column is slidably connected inside the outer housing.

[0013] As a further description of the above technical solution:

[0014] The lifting column is fixedly connected to a mounting plate at the end away from the top plate.

[0015] As a further description of the above technical solution:

[0016] The screw jack is installed on the outer side of the second fixed plate, and the threaded column passes through the middle of the second fixed plate.

[0017] As a further description of the above technical solution:

[0018] The protrusion is slidably connected inside the groove.

[0019] As a further description of the above technical solution:

[0020] The lifting column is slidably connected to the middle part of the fixed plate.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, guide grooves are precisely machined on the surface of the lifting column, and corresponding guide protrusions are provided on a fixed plate fixed inside the outer housing. These two elements form a high-precision sliding guide pair. This significantly improves the motion stability and positioning accuracy of the lifting mechanism during dynamic operation. Compared to existing technologies that commonly use ordinary bearing guidance or lifting schemes lacking precise linear constraints, this solution effectively suppresses lateral sway, vibration, and motion lag caused by the lifting column under load, thereby ensuring the smoothness and reliability of the lifting process of the work object. It is particularly suitable for applications requiring high positional accuracy and operational stability. Attached Figure Description

[0023] Figure 1 This is a three-dimensional schematic diagram of a lifting mechanism proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of the lifting column of a lifting mechanism proposed in this utility model;

[0025] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 for Figure 3 Enlarged diagram of point B in the middle.

[0027] Legend:

[0028] 1. Motor; 2. Outer housing; 3. Mounting plate; 4. Lifting column; 5. Threaded column; 6. Top plate; 7. Screw jack; 8. Fixing plate two; 9. Coupling; 10. Mounting screw; 11. Groove; 12. Protrusion; 13. Fixing plate one. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0030] Reference Figures 1-4 An embodiment of this utility model provides a lifting mechanism, including an outer housing 2, a motor 1 installed on the outside of the outer housing 2, a coupling 9 fixedly connected to the output end of the motor 1, a screw jack 7 installed at the end of the coupling 9 away from the motor 1, a threaded column 5 installed inside the screw jack 7, a fixing plate 8 fixedly connected inside the outer housing 2 by mounting screws 10, and a lifting assembly provided inside the outer housing 2.

[0031] The outer housing 2 serves to support and house all internal components. The motor 1 acts as the power source, driving the entire lifting mechanism. The coupling 9 connects the output shaft of the motor 1 to the input shaft of the screw jack 7, transmitting torque and compensating for certain shaft misalignments. The screw jack 7 is the core lifting actuator, converting rotary motion into linear lifting motion. The threaded column 5 is installed inside the screw jack 7, achieving lifting action through rotation. The fixing plate 2 8 is fixed inside the outer housing 2 by mounting screws 10, used for mounting and securing the screw jack 7.

[0032] Reference Figures 1-4 The lifting assembly includes a lifting column 4, which has multiple grooves 11 on its outer side. Two fixing plates 13 are fixedly connected inside the outer housing 2 by mounting screws 10. The inner side of the fixing plates 13 has protrusions 12 corresponding to the grooves 11. A top plate 6 is fixedly connected to one end of a threaded column 5. The side of the top plate 6 away from the threaded column 5 is fixedly connected to one end of the lifting column 4. The lifting column 4 is slidably connected inside the outer housing 2. The threaded column 5 is slidably connected inside the outer housing 2. An mounting plate 3 is fixedly connected to the end of the lifting column 4 away from the top plate 6. A screw lift 7 is installed on the outer side of the fixing plate 2. The threaded column 5 passes through the middle of the fixing plate 2. The protrusions 12 are slidably connected inside the grooves 11. The lifting column 4 is slidably connected to the middle of the fixing plate 13.

[0033] The lifting column 4, as the core load-bearing and moving component, enables the vertical displacement of the object. Multiple grooves 11 on the outer side of the lifting column 4 engage with protrusions 12 fixed to the inner side of the fixed plate 13. The sliding connection of the protrusions 12 within the grooves 11 ensures the guidance and stability of the lifting column 4 during movement and prevents rotation. The outer housing 2 provides installation space and structural support for the entire lifting assembly. Mounting screws 10 securely connect the two fixed plates 13 to the interior of the outer housing 2. The threaded column 5, as the key to power transmission, has a top plate 6 fixedly connected to one end, converting the rotational motion of the threaded column 5 into the linear motion of the lifting column 4. The side of the top plate 6 away from the threaded column 5 is fixedly connected to one end of the lifting column 4 for direct contact and control of its movement. The lifting column 4 is slidably installed inside the outer housing 2 and slides through the middle of the fixed plate 13. The threaded column 5 is also slidably connected inside the outer housing 2 and passes through the middle of the fixed plate 2 8, where the screw jack 7 is fixedly installed. Finally, the end of the lifting column 4 furthest from the top plate 6 is fixedly connected to a mounting plate 3, which is used to support and secure the object to be lifted. The screw jack 7 is installed on the outside of the fixed plate 8 and is the main component that generates the lifting force.

[0034] Working Principle: When using this lifting mechanism, first, place the outer casing 2 vertically and securely, then install the object to be lifted onto the mounting plate 3. After starting the motor 1, the screw jack 7 is driven to operate via the coupling 9. The screw jack 7 drives the internal threaded column 5 to rotate, thereby pushing the top plate 6 upward. Under the action of the top plate 6, the lifting column 4 begins to rise, and through the precise engagement of its protrusion 12 with the groove 11 on the inner side of the fixing plate 13, it ensures a smooth rise inside the outer casing 2, ultimately achieving the lifting operation of the object fixed on the mounting plate 3.

[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lifting mechanism comprising an outer casing (2), characterised in that: A motor (1) is installed on the outside of the outer casing (2). A coupling (9) is fixedly connected to the output end of the motor (1). A screw jack (7) is installed on the end of the coupling (9) away from the motor (1). A threaded column (5) is installed inside the screw jack (7). A fixing plate (8) is fixedly connected inside the outer casing (2) by mounting screws (10). A lifting assembly is provided inside the outer casing (2).

2. A lifting mechanism according to claim 1, characterised in that: The lifting assembly includes a lifting column (4), which has multiple grooves (11) on its outer side. The outer casing (2) has two fixing plates (13) fixedly connected inside by mounting screws (10). The inner side of the fixing plates (13) has protrusions (12) corresponding to the grooves (11).

3. A lifting mechanism according to claim 2, wherein: One end of the threaded column (5) is fixedly connected to a top plate (6), and the top plate (6) is fixedly connected to one end of the lifting column (4) on the side away from the threaded column (5).

4. A lifting mechanism according to claim 2, wherein: The lifting column (4) is slidably connected inside the outer casing (2), and the threaded column (5) is slidably connected inside the outer casing (2).

5. A lifting mechanism according to claim 3, wherein: The lifting column (4) is fixedly connected to an installation plate (3) at the end away from the top plate (6).

6. A lifting mechanism according to claim 2, wherein: The screw jack (7) is installed on the outside of the fixed plate two (8), and the threaded column (5) passes through the middle of the fixed plate two (8).

7. A lifting mechanism according to claim 2, wherein: The protrusion (12) is slidably connected inside the groove (11).

8. A lifting mechanism according to claim 2, characterized in that: The lifting column (4) is slidably connected to the middle of the fixed plate (13).

Images