A jacking mechanism
The lifting mechanism, which uses an eccentric rod and an adjustable push plate spacing, solves the problem of insufficient adaptability of existing lifting devices to workpieces of various specifications, and achieves efficient and stable workpiece lifting operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN KEYIN MACHINERY TECHNOLOGY CO LTD
- Filing Date
- 2025-09-22
- Publication Date
- 2026-07-28
AI Technical Summary
The existing lifting mechanism cannot flexibly adapt to workpieces of various specifications, resulting in the need for frequent disassembly and replacement of the push plate, which affects production efficiency and increases maintenance costs, and there is also a risk of workpiece posture deviation and damage.
It adopts a combination structure of eccentric rod, base plate, bearing, connecting plate, mounting base and push plate. Through the adjustable push plate spacing and mounting base position, it can flexibly adapt to different workpieces. Combined with motor drive and sensor control, it ensures the consistency and accuracy of the lifting action.
It enables flexible adaptation to workpieces of different specifications, reduces downtime for adjustment, improves production efficiency, reduces equipment maintenance costs, ensures workpiece posture stability, and avoids damage.
Smart Images
Figure CN224564243U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of material lifting technology, and in particular to a lifting mechanism. Background Technology
[0002] Lifting devices are key mechanical components in industrial production that enable material lifting, pushing, or workstation switching. They are widely used in material handling, workpiece assembly, stacking, equipment debugging, and other scenarios. Their core function is to precisely lift workpieces to a specified height or position using power, providing support for the efficient connection of subsequent processes. Therefore, the adaptability, stability, and accuracy of lifting devices directly affect the efficiency and reliability of the overall production process.
[0003] Existing lifting devices generally have significant limitations in their structural design, particularly in terms of workpiece load adaptability. The core actuator of existing lifting mechanisms—the push plate—is often directly assembled onto the push base using welding or rigid bolt fixing. The position, spacing, and support range of the push plate cannot be flexibly adjusted according to the workpiece's size and specifications. When facing loads of different widths, heights, or shapes, operators must disassemble the original push plate and replace it with a compatible component, or completely readjust the installation position of the lifting device. This process not only requires prolonged downtime, severely disrupting continuous production, but also necessitates stockpiling various sizes of push plate spares, significantly increasing equipment maintenance costs and warehousing pressure. Using an incompatible push plate can easily lead to insufficient contact area between the push plate and the workpiece, resulting in uneven load distribution during lifting, which can cause workpiece deviation, tilting, or even falling, affecting process quality and potentially damaging the workpiece. Utility Model Content
[0004] The purpose of this utility model is to provide a lifting mechanism that solves the technical problem that existing lifting mechanisms cannot adapt to workpieces of various specifications.
[0005] In a first aspect, this application provides a lifting mechanism, including an eccentric rod, a base plate, a bearing, a connecting plate, a mounting base, and a push plate;
[0006] An eccentric rod is rotatably mounted on the base plate, and a bearing is provided above the eccentric rod;
[0007] The lower end of the connecting plate is provided with a through hole for the bearing to move. The through hole allows the bearing to move inside the hole to drive the connecting plate to move up and down.
[0008] The mounting base is movably mounted on the base plate and fixed to the upper end of the connecting plate;
[0009] The mounting base is equipped with at least one push plate.
[0010] Optionally, four push plates are provided.
[0011] Optionally, the push plates on both sides are movably mounted on the mounting base.
[0012] Optionally, a guide connecting plate is provided between the mounting base and the push plate, and cam followers are provided at both ends of the guide connecting plate.
[0013] Optionally, the substrate has a through hole for the rotating shaft to pass through, the rotating shaft is used to drive the eccentric rod to rotate, the substrate is equipped with a motor, the motor is driven to the rotating shaft to make the rotating shaft rotate.
[0014] Optionally, a sensing rod protruding from the mounting base is provided on the side of the mounting base near the substrate, and a sensor is provided on the side of the substrate.
[0015] Optionally, the sides and bottom of the substrate are fixed to the frame.
[0016] Optionally, the length of the through hole extends along a first direction.
[0017] Optionally, a slide rail is provided on the substrate, the slide rail extends along a second direction, the first direction is perpendicular to the second direction, and the mounting base is movably disposed on the substrate via the slide rail.
[0018] Optionally, the push plate is provided with weight reduction holes.
[0019] The beneficial effects of the lifting mechanism provided by this utility model are:
[0020] 1. The spacing between the push plates is adjustable, and the number of push plates used can be flexibly adjusted according to the size and quantity of the workpiece. For small workpieces, only a single push plate can be used; for large workpieces, the number of push plates can be increased to ensure that the contact area between the push plates and the workpiece is appropriate, and to avoid uneven force on the workpiece or inability to lift stably due to insufficient number of push plates.
[0021] 2. When the mounting base moves along the base plate, the position of the mounting base can be adjusted according to the lifting starting point of the workpiece. In conjunction with the adjustment of the number of push plates, the adaptability of the mechanism to workpieces of different specifications can be further expanded without replacing the mounting base or adjusting the position of the entire mechanism.
[0022] 3. The through hole provides movement space for the bearing, ensuring that the connecting plate drives the mounting base to move up and down stably. No matter how the number of push plates is adjusted, the consistency of the lifting action can be guaranteed, avoiding instability caused by adapting to different workpieces, and supporting the adaptation and adjustment function of the support mechanism from the transmission level. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 A schematic diagram of the lifting mechanism provided in this embodiment of the utility model;
[0025] Figure 2 This is another structural schematic diagram of the lifting mechanism provided in an embodiment of the present utility model.
[0026] The following are the labeling elements in the figure:
[0027] 1. Eccentric rod; 11. Through hole; 2. Base plate; 21. Sensor; 22. Slide rail; 3. Bearing; 4. Connecting plate; 41. Through hole; 5. Mounting base; 51. Sensing rod; 6. Push plate; 61. Weight reduction hole; 7. Guide connecting plate; 8. Cam follower; 9. Rotary shaft; 10. Motor. Detailed Implementation
[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0029] Throughout this specification, references to "one embodiment" or "embodiment" mean that a particular feature, structure, or characteristic described in connection with an embodiment is included in at least one embodiment of this application. Therefore, the phrases "in another embodiment of this application," "in one embodiment," or "in some embodiments" appear in various places throughout the specification, and not all refer to the same embodiment. Furthermore, in one or more embodiments, particular features, structures, or characteristics may be combined in any suitable manner.
[0030] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0031] Furthermore, 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. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.
[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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 or an electrical connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0033] Please refer to Figure 1-2 The lifting mechanism in the embodiments of this utility model will now be described.
[0034] Please refer to Figure 1 This application provides a lifting mechanism, including an eccentric rod 1, a base plate 2, a bearing 3, a connecting plate 4, a mounting base 5, and a push plate 6; the eccentric rod 1 is rotatably mounted on the base plate 2, and the bearing 3 is disposed above the eccentric rod 1; the lower end of the connecting plate 4 is provided with a through hole 41 for the bearing 3 to move, and the through hole 41 allows the bearing 3 to move within the hole to drive the connecting plate 4 to move up and down; the mounting base 5 is movably mounted on the base plate 2 and is fixed to the upper end of the connecting plate 4; at least one push plate 6 is disposed on the mounting base 5.
[0035] Specifically, the eccentric rod 1 rotates, and the through hole 41 provides movement space for the bearing 3. The bearing 3 moves within the through hole 41. Since the bearing 3 is installed at one end of the eccentric rod 1, the rotation of the eccentric rod 1 causes the movement trajectory of the bearing 3 to become a circle. When the bearing 3 makes circular motion, its vertical component motion forces the connecting plate 4 to make reciprocating linear motion along the second direction. The function of the through hole 41 is to accommodate the first component motion of the bearing 3, thereby transmitting only the vertical component motion to the connecting plate 4. That is, it converts the rotational motion into linear lifting motion, limits the lifting direction, improves accuracy, and ensures that the connecting plate 4 drives the mounting base 5 to move stably up and down. Regardless of how the number of push plates 6 is adjusted, the consistency of the lifting action can be guaranteed, avoiding instability caused by adapting to different workpieces. From the transmission level, it supports the adaptation and adjustment function of the support mechanism, reduces friction, and extends service life.
[0036] When the mounting base 5 moves along the base plate 2, the position of the mounting base 5 can be adjusted according to the lifting starting point requirements of the workpiece. In conjunction with the adjustment of the number of push plates 6, the spacing between the push plates 6 can be adjusted. The number of push plates 6 used can also be flexibly adjusted according to the size and quantity of the workpiece. For small workpieces, only a single push plate 6 can be used; for large workpieces, the number of push plates 6 can be increased to ensure that the contact area between the push plates 6 and the workpiece is matched, avoiding uneven force on the workpiece or inability to lift stably due to insufficient number of push plates 6. This further expands the adaptability range of the mechanism to workpieces of different specifications. There is no need to replace the mounting base 5 or adjust the position of the entire mechanism. Finally, the lifting operation is performed by the push plates 6.
[0037] In another embodiment of this application, please refer to Figure 1 There are four push plates 6.
[0038] Specifically, four push plates 6 are linearly mounted on the mounting base 5 and driven by the mounting base 5 to move up and down synchronously. Multiple push plates 6 can be evenly distributed on the bottom of the workpiece, increasing the contact points of force, avoiding single-point force on the workpiece, ensuring the stability of the workpiece posture when it is lifted, and reducing the risk of damage.
[0039] In another embodiment of this application, please refer to Figure 1 The push plates 6 on both sides are movably mounted on the mounting base 5.
[0040] Specifically, the two middle push plates 6 are fixed to the mounting base 5, while the push plates 6 on both sides can be moved along the mounting base 5 to adjust their spacing. When the equipment stops working, the mechanisms fixing the push plates 6 on both sides, such as locking screws or clamps, can be loosened manually or with auxiliary tools. Then, the push plates 6 on both sides can be moved horizontally along the guide rails or T-slots on the mounting base 5 to change the spacing between them. After adjustment, they can be re-locked without disassembling or replacing parts, allowing for quick adaptation to workpieces of different widths, reducing downtime for adjustment, and improving work efficiency.
[0041] In another embodiment of this application, please refer to Figure 1 A guide connecting plate 7 is provided between the mounting base 5 and the push plate 6, and cam followers 8 are provided at both ends of the guide connecting plate 7.
[0042] Specifically, the cam follower 8 is fitted with the holes on other mechanisms with clearance, so that there will be no problem of movement being blocked due to excessive tightness or shaking due to excessive looseness. This ensures that the guide connecting plate 7 can move flexibly, while avoiding shaking caused by excessive clearance, thus balancing the flexibility and stability of movement.
[0043] In another embodiment of this application, please refer to Figure 1 The substrate 2 has a through hole 11 for the rotating shaft 9 to pass through. The rotating shaft 9 is used to drive the eccentric rod 1 to rotate. The substrate 2 is equipped with a motor 10, which is connected to the rotating shaft 9 to drive the rotating shaft 9 to rotate.
[0044] Specifically, after the motor 10 starts, the output shaft of the motor is connected to the rotating shaft 9 through a coupling or other means. The rotating shaft 9 drives the eccentric rod 1 to rotate in a circle, realizing the direct and stable transmission of power. The motor 10 is fixed on the base plate 2 to avoid the power source shaking from affecting the transmission accuracy, ensuring that the rotation speed of the eccentric rod 1 is stable and the lifting speed is uniform.
[0045] In another embodiment of this application, please refer to Figure 1-2 A sensing rod 51 protruding from the mounting base 5 is provided on the side of the mounting base 5 near the substrate 2, and a sensor 21 is provided on the side of the substrate 2.
[0046] Specifically, the sensing rod 51 moves synchronously with the mounting base 5, while the position of the sensor 21, fixed to the side of the base plate 2, remains constant. When the mounting base 5 moves to a specific position, such as the highest or lowest point, the sensing rod 51 enters the detection range of the sensor 21. Multiple sensors 21 can be set to detect the position of the sensing rod 51 in real time. In addition to detecting the upper and lower limit positions, the sensor 21 can also be set to an origin or a safety position. Each time the equipment is started, the mechanism can automatically return to zero, ensuring the accuracy of the motion reference, accurately feeding back the lifting height, realizing automated control of the lifting position, enhancing equipment safety, and avoiding human error.
[0047] In another embodiment of this application, please refer to Figure 1 The sides and bottom of the substrate 2 are fixed to the frame.
[0048] Specifically, the base plate 2 is double-fixed to the frame on both the side and the bottom to form a stable support structure, eliminating the shaking of the base plate 2, providing a stable motion reference for each component, and further improving the lifting accuracy.
[0049] In another embodiment of this application, please refer to Figure 1 The length of the through hole 41 extends along the first direction.
[0050] Specifically, the first direction is the horizontal direction, and the length of the through hole 41 needs to be greater than the vertical movement stroke of the bearing 3 to provide sufficient movement space for the bearing 3, avoid collision between the bearing 3 and the hole end, and ensure that the connecting plate 4 can smoothly complete the up and down movement without the risk of jamming.
[0051] In another embodiment of this application, please refer to Figure 1 A slide rail 22 is provided on the substrate 2. The slide rail 22 extends along a second direction. The first direction is perpendicular to the second direction. The mounting base 5 is movably mounted on the substrate 2 via the slide rail 22.
[0052] Specifically, the second direction is the vertical direction. The slide rail 22 on the base plate 2 limits the mounting seat 5 to move vertically only along the slide rail 22 direction, avoiding the mounting seat 5 from shifting and ensuring that the push plate 6 always lifts in the vertical direction, so that there is no risk of workpiece misalignment.
[0053] In another embodiment of this application, please refer to Figure 1 The push plate 6 is provided with weight reduction holes 61.
[0054] Specifically, the weight reduction hole 61 can reduce the weight of the push plate 6 while ensuring the structural strength of the push plate 6, thereby reducing the load on the drive components and reducing energy consumption; at the same time, it reduces motion inertia, making the push plate 6 start and stop more smoothly and improving the lifting accuracy, especially suitable for high-frequency lifting scenarios.
[0055] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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, characterized in that: It includes an eccentric rod (1), a base plate (2), a bearing (3), a connecting plate (4), a mounting base (5), and a push plate (6); The eccentric rod (1) is rotatably mounted on the base plate (2), and the bearing (3) is mounted above the eccentric rod (1); The lower end of the connecting plate (4) is provided with a through hole (41) for the bearing (3) to move. The through hole (41) allows the bearing (3) to move in the hole to drive the connecting plate (4) to move up and down. The mounting base (5) is movably disposed on the base plate (2), and the mounting base (5) is fixed to the upper end of the connecting plate (4); At least one of the push plates (6) is provided on the mounting base (5).
2. The lifting mechanism according to claim 1, characterized in that: The push plate (6) is provided in four parts.
3. The lifting mechanism according to claim 2, characterized in that: The push plates (6) on both sides are movably mounted on the mounting base (5).
4. The lifting mechanism according to claim 3, characterized in that: A guide connecting plate (7) is provided between the mounting base (5) and the push plate (6), and cam followers (8) are provided at both ends of the guide connecting plate (7).
5. The lifting mechanism according to claim 1, characterized in that: The substrate (2) has a through hole (11) through which the rotating shaft (9) passes. The rotating shaft (9) is used to drive the eccentric rod (1) to rotate. The substrate (2) is provided with a motor (10), which is connected to the rotating shaft (9) to drive the rotating shaft (9) to rotate.
6. The lifting mechanism according to claim 1, characterized in that: The mounting base (5) has a sensing rod (51) protruding from the mounting base (5) on the side near the substrate (2), and a sensor (21) is provided on the side of the substrate (2).
7. The lifting mechanism according to claim 1, characterized in that: The sides and bottom of the substrate (2) are fixed to the frame.
8. The lifting mechanism according to claim 1, characterized in that: The length of the through hole (41) extends along the first direction.
9. The lifting mechanism according to claim 8, characterized in that: A slide rail (22) is provided on the substrate (2), the slide rail (22) extends along a second direction, the first direction is perpendicular to the second direction, and the mounting base (5) is movably disposed on the substrate (2) via the slide rail (22).
10. The lifting mechanism according to claim 1, characterized in that: The push plate (6) is provided with weight reduction holes (61).