Positioning structure of double-screw lifting machine tool
By introducing positioning mechanisms and adjustment components into the dual screw lifting machine tool, precise positioning of the lift plate is achieved, the problem of screw displacement is solved, and the stability and service life of the equipment are improved.
Patent Information
- Application Number
- CN202422639886.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-10-30
AI Technical Summary
The existing double screw lifting machine tools lack positioning structure, which leads to the screw being easily displaced after lifting objects, reducing the lifting accuracy and possibly damaging the equipment.
A double screw lifting machine tool structure including a positioning mechanism and adjustment components is designed to achieve precise positioning and stable control of the lifting plate through support spring and worm gear transmission.
It improves lifting accuracy, avoids screw displacement, enhances the stability and load-bearing capacity of the equipment, and extends the service life.
Smart Images
Figure CN223292235U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of screw lifts, in particular to a positioning structure of a double-screw lift machine tool. Background Art
[0002] The screw lift uses a worm gear to drive a screw to complete functions such as lifting, lowering, and propulsion. It is a basic lifting component and is widely used in various industries such as machinery, metallurgy, water conservancy, chemical industry, medical care, culture, and health. It has the advantages of compact structure, small size, light weight, easy installation, flexible use, good reliability, high stability, and long service life. The double-screw lift uses two parallel screws as the main driving components for lifting. This design not only improves the stability and carrying capacity of the lift, but also achieves more precise positioning through the synchronous movement of the two screws.
[0003] For example, patent CN219689209U discloses a screw lift, comprising a frame, a lifting mechanism, and a supporting platform. The frame comprises two guide rails, and the lifting mechanism comprises a screw, a drive motor, and a lifting nut. The screw is arranged between the two guide rails, and the drive motor is arranged on the frame and drives the rotation of the screw. The lifting nut is sleeved on the screw and is driven by the screw to lift. The supporting platform comprises a support plate. However, the screw lift lacks a positioning structure, so it cannot be positioned after lifting an object. The screw is prone to displacement, resulting in poor lifting accuracy and, in severe cases, damage to the equipment. Therefore, a positioning structure of a double-screw lift is proposed to solve the above-mentioned problems. Utility Model Content
[0004] In response to the shortcomings of the existing technology, the utility model provides a positioning structure for a double-screw lifting machine tool, which has advantages such as limit support, and solves the problem that the screw lifter lacks a positioning structure, so that it cannot be positioned after lifting the object, the screw is prone to displacement, resulting in poor lifting accuracy, and in serious cases, damage to the equipment.
[0005] To achieve the above object, the present invention provides the following technical solution: a positioning structure for a double-screw lifting machine tool, comprising a base, positioning mechanisms are provided on both the left and right sides of the base, and an adjustment component is provided on the base;
[0006] The positioning mechanism includes a support plate fixedly connected to the base, the top of the support plate is fixedly connected to a first support rod, the top of the first support rod is fixedly connected to a first fixing plate, the top of the first fixing plate is fixedly connected to a support spring, the top of the support spring is fixedly connected to a second fixing plate, and the top of the second fixing plate is fixedly connected to a second support rod;
[0007] The first fixing plate and the second fixing plate are slidably connected to the outer sides of the sleeve, the outer sides of the first fixing plate and the second fixing plate are fixedly connected to a connecting plate, the interior of the bottom connecting plate is fixedly connected to two fixing bolts, and the outer sides of the two fixing bolts are threadedly connected to nuts.
[0008] Furthermore, the adjustment assembly includes an adjustment motor fixedly mounted on the right side of the base, the output shaft of the adjustment motor is fixedly connected to a worm, the inner bottom wall of the base is rotatably connected to two threaded rods, the outer sides of the two threaded rods are fixedly connected to worm wheels meshing with the worm, the outer sides of the two threaded rods are threadedly connected to fixed blocks, the left and right sides of the fixed block are fixedly connected to support blocks, and the top of the fixed block is fixedly connected to a lifting plate.
[0009] Furthermore, the top of the second support rod is fixedly connected to the bottom of the lifting plate.
[0010] Furthermore, the support spring is in an extended state.
[0011] Furthermore, the top and the bottom of the sleeve are both provided with rectangular through holes that are slidably connected to the outer sides of the first support rod and the second support rod.
[0012] Furthermore, a sliding through hole is provided on the connecting plate and is slidably connected to the fixing bolt.
[0013] Furthermore, support grooves are provided on both left and right sides of the inner wall of the base, and the outer sides of the support blocks are slidably connected to the inner sides of the support grooves.
[0014] Compared with the existing technology, the technical solution of this application has the following beneficial effects:
[0015] 1. The positioning structure of the double-screw lifting machine tool has a positioning function by setting a positioning mechanism, so as to achieve the effect of positioning the lifting plate, so as to support and position the lifting plate after lifting the object, avoid displacement of the threaded rod, thereby improving the lifting accuracy and avoiding damage to the double-screw lifting machine tool, making it convenient for users to use and increasing the practicality of the double-screw lifting machine tool.
[0016] 2. The positioning structure of the double-screw lifting machine tool, through the setting of adjustment components, adopts worm gear and worm to accurately control the lifting and lowering of the lifting plate, and adopts two parallel threaded rods as the main driving components of the lifting. This design not only improves the stability and carrying capacity of the lifting, but also achieves more precise positioning through the synchronous movement of the two threaded rods, which is convenient for users and improves the practicality of the double-screw lifting machine tool. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the structure of the adjustment mechanism of the utility model;
[0019] Figure 3 This is the main view of the structure of the utility model;
[0020] Figure 4 This is a schematic diagram of the sleeve structure of the utility model.
[0021] In the figure: 1. Base; 2. Support plate; 3. First support rod; 4. First fixed plate; 5. Support spring; 6. Second fixed plate; 7. Second support rod; 8. Connecting plate; 9. Fixing bolt; 10. Nut; 11. Adjusting motor; 12. Worm; 13. Threaded rod; 14. Worm gear; 15. Fixing block; 16. Support block; 17. Lifting plate; 18. Sleeve. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0023] For example 1, please refer to Figures 1 to 4 In this embodiment, a positioning structure of a double-screw lifting machine tool includes a base 1, positioning mechanisms are provided on the left and right sides of the base 1, and an adjustment component is provided on the base 1.
[0024] The positioning mechanism includes a support plate 2 fixedly connected to the base 1, the top of the support plate 2 is fixedly connected to a first support rod 3, the top of the first support rod 3 is fixedly connected to a first fixed plate 4, the top of the first fixed plate 4 is fixedly connected to a support spring 5, the support spring 5 is in an extended state, the top of the support spring 5 is fixedly connected to a second fixed plate 6, and the top of the second fixed plate 6 is fixedly connected to a second support rod 7.
[0025] It should be noted that the lifting plate 17 is supported by the support spring 5 extending, thereby providing position limiting support for the lifting plate 17 .
[0026] See also Figures 1 to 4In this embodiment, the outer sides of the first fixing plate 4 and the second fixing plate 6 are slidably connected with a sleeve 18. The top and bottom of the sleeve 18 are provided with rectangular through holes that are slidably connected to the outer sides of the first support rod 3 and the second support rod 7. The outer sides of the first fixing plate 4 and the second fixing plate 6 are fixedly connected with a connecting plate 8. The inside of the bottom connecting plate 8 is fixedly connected with two fixing bolts 9. The connecting plate 8 is provided with a sliding through hole that is slidably connected to the fixing bolts 9. The outer sides of the two fixing bolts 9 are threadedly connected with nuts 10.
[0027] It should be noted that by setting up a positioning mechanism, the lifting plate 17 can be positioned, so that the lifting plate 17 can be supported and positioned after the object is lifted, avoiding displacement of the threaded rod 13, thereby improving the lifting accuracy and avoiding damage to the double-screw lifting machine tool.
[0028] For example 2, please refer to Figures 1 to 4 In this embodiment, the adjustment component includes an adjustment motor 11 fixedly mounted on the right side of the base 1, the output shaft of the adjustment motor 11 is fixedly connected to a worm 12, and the inner bottom wall of the base 1 is rotatably connected to two threaded rods 13, the outer sides of the two threaded rods 13 are fixedly connected to a worm gear 14 meshing with the worm 12, the outer sides of the two threaded rods 13 are threadedly connected to a fixing block 15, and the left and right sides of the fixing block 15 are fixedly connected to support blocks 16, and support grooves are provided on both sides of the left and right sides of the inner wall of the base 1, and the outer side of the support block 16 is slidably connected to the inner side of the support groove, and the top of the fixed block 15 is fixedly connected to a lifting plate 17, and the top of the second support rod 7 is fixedly connected to the bottom of the lifting plate 17.
[0029] It should be noted that by setting up an adjustment component, the worm gear 14 and the worm 12 can accurately control the lifting and lowering of the lifting plate 17, and two parallel threaded rods 13 are used as the main driving components for lifting. This design not only improves the stability and load-bearing capacity of the lifting, but also achieves more precise positioning through the synchronous movement of the two threaded rods 13.
[0030] The working principle of the above embodiment is: the positioning structure of the double-screw lifting machine tool,
[0031] 1) When in use, by setting the adjustment component, the adjustment motor 11 is started, the output shaft of the adjustment motor 11 drives the worm 12 to rotate, the worm 12 drives the two worm wheels 14 to rotate, the two worm wheels 14 drive the two threaded rods 13 to rotate, and the two threaded rods 13 drive the fixed block 15 to move upward. By setting the support block 16 and the support groove, the fixed block 15 is limited and supported, and the stability of the fixed block 15 during movement is increased, thereby adjusting the height of the lifting plate 17, and the lifting plate 17 drives the second support rod 7 to move upward.
[0032] 2) The second support rod 7 drives the second fixed plate 6 to move upward inside the sleeve 18, thereby stretching the support spring 5 to support it, and at the same time making the top connecting plate 8 slide on the outside of the fixing bolt 9, and then screwing the nut 10 on the outside of the fixing bolt 9 to limit and fix the two connecting plates 8, so as to support and position the lifting plate 17 after lifting the object, avoid displacement of the threaded rod 13, thereby improving the lifting accuracy, avoiding damage to the double-screw lifting machine tool, facilitating the use of the user, and increasing the practicality of the double-screw lifting machine tool.
[0033] The electrical components appearing in the text are all electrically connected to the controller and the power supply. The control method of the present invention is controlled by the controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power is also common knowledge in this field. In addition, the present invention is mainly used to protect mechanical devices, so the control method and circuit connection are no longer explained in detail in the present invention.
[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.
[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A positioning structure for a double-screw lifting machine tool, comprising a base (1), characterized in that: Positioning mechanisms are provided on both the left and right sides of the base (1), and an adjustment component is provided on the base (1); The positioning mechanism comprises a support plate (2) fixedly connected to the base (1); the top of the support plate (2) is fixedly connected to a first support rod (3); the top of the first support rod (3) is fixedly connected to a first fixing plate (4); the top of the first fixing plate (4) is fixedly connected to a support spring (5); the top of the support spring (5) is fixedly connected to a second fixing plate (6); the top of the second fixing plate (6) is fixedly connected to a second support rod (7); The first fixing plate (4) and the second fixing plate (6) are slidably connected to the outer sides of a sleeve (18); the outer sides of the first fixing plate (4) and the second fixing plate (6) are fixedly connected to a connecting plate (8); the interior of the bottom connecting plate (8) is fixedly connected to two fixing bolts (9); the outer sides of the two fixing bolts (9) are threadedly connected to nuts (10).
2. The positioning structure of a double-screw lifting machine tool according to claim 1, characterized in that: The adjustment assembly comprises an adjustment motor (11) fixedly mounted on the right side of the base (1); an output shaft of the adjustment motor (11) is fixedly connected to a worm (12); an inner bottom wall of the base (1) is rotatably connected to two threaded rods (13); outer sides of the two threaded rods (13) are fixedly connected to worm wheels (14) meshing with the worm (12); outer sides of the two threaded rods (13) are threadedly connected to fixed blocks (15); left and right sides of the fixed blocks (15) are fixedly connected to support blocks (16); and a top of the fixed block (15) is fixedly connected to a lifting plate (17).
3. The positioning structure of a double-screw lifting machine tool according to claim 2, characterized in that: The top of the second support rod (7) is fixedly connected to the bottom of the lifting plate (17).
4. The positioning structure of a double-screw lifting machine tool according to claim 1, characterized in that: The supporting spring (5) is in an extended state.
5. The positioning structure of a double-screw lifting machine tool according to claim 1, characterized in that: The top and bottom of the sleeve (18) are both provided with rectangular through holes that are slidably connected to the outer sides of the first support rod (3) and the second support rod (7).
6. The positioning structure of a double-screw lifting machine tool according to claim 1, characterized in that: The connecting plate (8) is provided with a sliding through hole which is slidably connected to the fixing bolt (9).
7. The positioning structure of a double-screw lifting machine tool according to claim 2, characterized in that: Support grooves are provided on both sides of the inner wall of the base (1), and the outer side of the support block (16) is slidably connected to the inner side of the support groove.