Precision positioning mechanism for helical elevator
By introducing positioning components and servo motor control into the screw conveyor, the problems of offset and collision of block materials during the conveying process are solved, achieving stable material conveying and precise positioning, and improving conveying stability and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- PINGXIANG MINGZHI INTELLIGENT SYST CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-07-31
AI Technical Summary
Existing screw conveyors cannot achieve precise positioning during the conveying of block materials, resulting in material deviation and collision with the inner wall, affecting the stability of material conveying.
The spiral lifting precision positioning mechanism, including positioning components, servo motors and telescopic cylinders, enhances the friction and precisely positions the block materials through guide rollers and side rollers, and combines the servo motor to control the material conveying mode switching.
It improves the stability of block materials during the conveying process, avoids material breakage and personnel injury, and achieves precise positioning and guidance of materials of different sizes.
Smart Images

Figure CN224577280U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spiral lift technology, and more specifically, to a precision positioning mechanism for spiral lifts. Background Technology
[0002] In my country's current industries, various types of lifting equipment are most commonly used in the circulation or three-dimensional transport of products between floors in multi-story buildings. However, lifting equipment commonly uses chains, steel cables, and ring chains as transmission components, which require grease lubrication during operation and are prone to contaminating products.
[0003] In the existing technology, the continuous lifting or lowering of block materials across floors cannot accurately position the block materials. The inconsistent size of the block materials can easily cause the materials to deviate on the chain plate inside the screw elevator and collide with the inner wall of the screw elevator's spiral trough, resulting in damage. This greatly reduces the stability of the material conveying in the screw elevator.
[0004] There are currently no effective solutions to the problems in the relevant technologies. Utility Model Content
[0005] In view of the problems in related technologies, this utility model proposes a precision positioning mechanism for a spiral lift to overcome the aforementioned technical problems existing in the prior art.
[0006] Therefore, the specific technical solution adopted by this utility model is as follows:
[0007] A precision positioning mechanism for a spiral lifting platform includes a base, a mounting column, and a spiral material trough plate. The top of the base is fixedly connected to the mounting column. The spiral material trough plate is sleeved and fixed to the outer wall of the mounting column. Material conveying trough plates are respectively fixed through the upper and lower ends of the spiral material trough plate. Mounting tubes are equidistantly sleeved and fixed on the outer wall of the mounting column. A spiral guide plate is connected to the outside of the mounting tubes through a support rod. The spiral guide plate is located above the inner cavity of the spiral material trough plate. Positioning components are symmetrically connected to the front and rear of the outer wall of the spiral material trough plate.
[0008] Preferably, the positioning component includes a first positioning plate and a second positioning plate, with one side of the first positioning plate fixedly connected to the second positioning plate, and a servo motor fixedly connected to the outer edge of the first positioning plate.
[0009] Preferably, a first curved plate is connected to the inner side of the first positioning plate, a second curved plate is fixedly connected to the inner side of the second positioning plate, and the output shaft of the servo motor is fixedly connected to the first curved plate.
[0010] Preferably, a first mounting groove is provided on the top side of the inner wall of the first curved plate, and first guide rollers are symmetrically connected between the inner walls of the first mounting grooves via bearings.
[0011] Preferably, a movable groove is provided on one side of the inner wall of the second curved plate, and a movable slot plate is movably connected inside the movable groove. A telescopic cylinder is fixedly connected to the outer side of the second curved plate, and the movable end of the telescopic cylinder is fixedly connected to the movable slot plate.
[0012] Preferably, the inner walls of the movable groove plates are connected by bearings to a rotating shaft, and side rollers are equidistantly sleeved and fixed on the outer wall of the rotating shaft.
[0013] Preferably, a second mounting groove is provided on the top side of the inner wall of the second curved plate, and a second guide roller is symmetrically connected between the inner walls of the second mounting groove through bearings. The first guide roller and the second guide roller are arranged parallel to each other.
[0014] The beneficial effects of this utility model are as follows: it can increase the friction of block materials during the screw conveying process, thereby improving the stability of the block materials during loading and unloading, avoiding the block materials from swaying left and right, and preventing the materials from being damaged or accidentally injured by the receiving personnel due to the material being fed too fast downwards and the receiving personnel not being able to match the loading and unloading speed. It can also convert continuous downward conveying into intermittent unloading, further improving its practicality. It can also change the width of the space inside the screw trough, allowing the side rollers to accurately position and guide material blocks of different sizes. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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.
[0016] Figure 1 This is a schematic diagram of the overall structure of the precision positioning mechanism of the spiral lift according to an embodiment of the present utility model;
[0017] Figure 2 This is a schematic diagram of the external structure of the first positioning plate and the second positioning plate of the precision positioning mechanism of the spiral lift according to an embodiment of the present utility model;
[0018] Figure 3 This is a schematic diagram of the split structure of the second positioning plate of the precision positioning mechanism of the spiral lift according to an embodiment of the present utility model.
[0019] In the picture:
[0020] 1. Base; 2. Mounting column; 3. Spiral feed trough plate; 4. Conveying trough plate; 5. Mounting pipe; 6. Spiral guide plate; 7. Positioning assembly; 8. First positioning plate; 9. Second positioning plate; 10. Servo motor; 11. First bending plate; 12. Second bending plate; 13. First mounting groove; 14. First guide roller; 15. Movable groove; 16. Movable trough plate; 17. Telescopic cylinder; 18. Rotating shaft; 19. Side roller; 20. Second mounting groove; 21. Second guide roller. Detailed Implementation
[0021] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.
[0022] According to an embodiment of the present invention, a precision positioning mechanism for a spiral lift is provided.
[0023] Example 1
[0024] like Figure 1-3As shown, the precision positioning mechanism of the spiral lifting machine according to an embodiment of this utility model includes a base 1, a mounting column 2, and a spiral material trough plate 3. The top of the base 1 is fixedly connected to the mounting column 2. The spiral material trough plate 3 is sleeved and fixed to the outer wall of the mounting column 2. Material conveying trough plates 4 are respectively fixed through the upper and lower ends of the spiral material trough plate 3. Mounting pipes 5 are equidistantly sleeved and fixed on the outer wall of the mounting column 2. A spiral guide plate 6 is connected to the outside of the mounting pipe 5 through a support rod. The spiral guide plate 6 is located above the inner cavity of the spiral material trough plate 3. The outer wall of the spiral material trough plate 3 is symmetrically arranged front and back. A positioning assembly 7 is connected, comprising a first positioning plate 8 and a second positioning plate 9. One side of the first positioning plate 8 is fixedly connected to the second positioning plate 9. A servo motor 10 is fixedly connected to the outer edge of the first positioning plate 8. A first curved plate 11 is connected to the inner side of the first positioning plate 8, and a second curved plate 12 is fixedly connected to the inner side of the second positioning plate 9. The output shaft of the servo motor 10 is fixedly connected to the first curved plate 11. A first mounting groove 13 is carved into the top side of the inner wall of the first curved plate 11. First guides are symmetrically connected between the inner walls of the first mounting grooves 13 via bearings. When the block material is spirally fed and unloaded on the spiral trough plate 3, the spiral guide plate 6 can help to adhere to the top side of the block material, increasing the friction of the block material during spiral conveying. This improves the stability of the block material during loading and unloading, preventing it from swaying left and right. Simultaneously, the first guide roller 14 at the bottom of the first curved plate 11 assists in positioning the spiral guide plate 6, and the servo motor 10 can be activated. The output shaft of the servo motor 10 drives the first curved plate 11 to rotate. Depending on the requirements of the unloading and conveying, the first curved plate 11 can be rotated to a horizontal position to block the block material. The servo motor 10 of the first positioning plate 8 at different heights can be flexibly activated according to the required blocking position of the block material. This prevents the material from being damaged or accidentally injured by the receiving personnel due to the material being fed too quickly downwards, which could cause the receiving personnel to be unable to match the loading and unloading speed. This allows the continuous downward conveying to be converted into an intermittent unloading method, further improving its practicality.
[0025] Example 2
[0026] like Figure 1-3As shown, the precision positioning mechanism of the spiral lifting machine according to an embodiment of this utility model includes a base 1, a mounting column 2, and a spiral material trough plate 3. The top of the base 1 is fixedly connected to the mounting column 2. The spiral material trough plate 3 is sleeved and fixed to the outer wall of the mounting column 2. Material conveying trough plates 4 are respectively fixedly through the upper and lower ends of the spiral material trough plate 3. Mounting pipes 5 are equidistantly sleeved and fixed on the outer wall of the mounting column 2. A spiral guide plate 6 is connected to the outside of the mounting pipe 5 through a support rod. The spiral guide plate 6 is located above the inner cavity of the spiral material trough plate 3. Positioning components 7 are symmetrically connected to the front and rear of the outer wall of the spiral material trough plate 3. A movable groove 15 is carved out on one side of the inner wall of the second curved plate 12. A movable trough plate 16 is movably connected inside the movable groove 15. A telescopic cylinder 17 is fixedly connected to the outside of the second curved plate 12. The movable end of the telescopic cylinder 17 is fixedly connected to the movable trough plate 16. A rotating shaft 18 is connected between the inner walls of the trough plate 16 via bearings. Side rollers 19 are equidistantly sleeved and fixed on the outer wall of the rotating shaft 18. A second mounting groove 20 is carved into the top side of the inner wall of the second curved plate 12. Second guide rollers 21 are symmetrically connected between the inner walls of the second mounting grooves 20 via bearings. The first guide roller 14 and the second guide roller 21 are arranged parallel to each other. While the first guide roller 14 and the second guide roller 21 at the bottom of the first curved plate 11 and the second curved plate 12 guide and limit the material, the telescopic cylinder 17 can be activated according to the width of the material. The movable end of the telescopic cylinder 17 drives the movable trough plate 16 to extend outward, so that the side rollers 19 inside the movable trough plate 16 fit against the left and right sides of the material block. This can change the width of the space inside the spiral material trough plate 3, so that the side rollers 19 can accurately position and guide material blocks of different sizes.
[0027] In summary, with the help of the above-mentioned technical solution of this utility model, when this device is in use, the block material is spirally fed and unloaded on the spiral feed trough 3. Under the action of the spiral guide plate 6, the top side of the block material can be adhered, which can increase the friction of the block material during the spiral conveying process, thereby improving the stability of the block material during the feeding and unloading process and avoiding the block material from swaying left and right. In addition, while the first guide roller 14 set at the bottom of the first curved plate 11 assists in positioning the spiral guide plate 6, the servo motor 10 can be started. The output shaft of the servo motor 10 drives the first curved plate 11 to rotate, which can be adjusted according to the feeding and unloading. The feeding requirements allow the first curved plate 11 to rotate to a horizontal position to block the blocky material, thus converting the continuous downward conveying into an intermittent feeding method. While the first guide roller 14 and the second guide roller 21 at the bottom of the first curved plate 11 and the second curved plate 12 guide and limit the material, the telescopic cylinder 17 can be activated according to the width of the material. The movable end of the telescopic cylinder 17 drives the movable trough plate 16 to extend outward, so that the side rollers 19 inside the movable trough plate 16 fit against the left and right sides of the material block. This can change the width of the space inside the spiral material trough plate 3, allowing the side rollers 19 to accurately position and guide material blocks of different sizes.
[0028] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A precision positioning mechanism for a screw elevator, comprising a base (1), a mounting column (2), and a screw trough plate (3), characterized in that, The top of the base (1) is fixedly connected to the mounting column (2). The spiral material trough plate (3) is sleeved and fixed on the outer wall of the mounting column (2). The upper and lower ends of the spiral material trough plate (3) are respectively fixed with material conveying trough plates (4). The mounting column (2) is equidistantly sleeved and fixed with mounting tubes (5). The outer side of the mounting tube (5) is connected to a spiral guide plate (6) through a support rod. The spiral guide plate (6) is located above the inner cavity of the spiral material trough plate (3). The outer wall of the spiral material trough plate (3) is symmetrically connected with positioning components (7) at the front and back.
2. The helical elevator precision positioning mechanism according to claim 1, characterized in that The positioning component (7) includes a first positioning plate (8) and a second positioning plate (9). One side of the first positioning plate (8) is fixedly connected to the second positioning plate (9), and a servo motor (10) is fixedly connected to the outer edge of the first positioning plate (8).
3. The helical elevator precision positioning mechanism of claim 2, wherein, The first positioning plate (8) is connected to the inner side of the first bending plate (11), and the second positioning plate (9) is fixedly connected to the inner side of the second bending plate (12). The output shaft of the servo motor (10) is fixedly connected to the first bending plate (11).
4. The helical elevator precision positioning mechanism of claim 3, wherein, The top side of the inner wall of the first curved plate (11) is provided with a first mounting groove (13), and the inner walls of the first mounting groove (13) are symmetrically connected by bearings with first guide rollers (14).
5. The helical elevator precision positioning mechanism of claim 4, wherein, A movable groove (15) is provided on one side of the inner wall of the second curved plate (12). A movable slot plate (16) is movably connected inside the movable groove (15). A telescopic cylinder (17) is fixedly connected to the outer side of the second curved plate (12). The movable end of the telescopic cylinder (17) is fixedly connected to the movable slot plate (16).
6. The helical elevator precision positioning mechanism of claim 5, wherein, The inner walls of the movable groove plate (16) are connected by bearings to a rotating shaft (18), and side rollers (19) are equidistantly sleeved and fixed on the outer wall of the rotating shaft (18).
7. The helical elevator precision positioning mechanism of claim 6, wherein, The second curved plate (12) has a second mounting groove (20) dug on the top side of its inner wall. The inner walls of the second mounting groove (20) are symmetrically connected by bearings to the second guide roller (21). The first guide roller (14) and the second guide roller (21) are arranged parallel to each other.