A rotation-stopping lifting device

Abstract

The utility model relates to the field of lifting equipment especially, and more particularly to a kind of rotation-stopping lifting device with high precision and high reliability, including driving motor, threaded rod, mounting sleeve, lifting seat, connecting seat, bushing and end cover, the outside of mounting sleeve is provided with mounting seat, the strip-shaped groove of being equipped with convenient installation is equipped on mounting seat, the central axis of mounting sleeve is provided with the through-hole along vertical direction, lifting seat is worn in the through-hole, and the lower end of lifting seat is fixedly connected with connecting seat and is worn out mounting sleeve, the outer surface of lifting seat is equipped with the sliding slot along vertical direction distribution, the first mounting hole is equipped in the corresponding place of mounting sleeve with sliding slot, fixed rod is worn in the first mounting hole, the inner end of fixed rod and located in sliding slot is equipped in gyro wheel, the bushing is equipped between lifting seat and mounting sleeve, the end cover is equipped in the lower end of mounting sleeve, for fixing bushing, the upper end surface of lifting seat is equipped with threaded hole.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment, and in particular to an anti-rotation lifting device. Background Technology

[0002] In the fields of industrial automation and precision manufacturing, vertical lifting control of objects is a crucial link in realizing core functions such as material handling, assembly positioning, and equipment debugging. Traditional lifting devices generally use cylinders or hydraulic cylinders as linear drive sources. Their working principle is to use compressed gas or hydraulic oil to drive pistons to achieve reciprocating motion, thereby driving the load to complete the lifting action. However, this type of drive method has significant technical defects: First, pneumatic systems are affected by the compressibility of compressed air, resulting in elastic deformation and pressure fluctuations, which means that the positioning accuracy can usually only reach ±0.1mm level; although hydraulic systems improve rigidity through the incompressibility of oil, their repeatability is still limited by the pulsating characteristics of the hydraulic pump station output pressure and the viscosity fluctuations caused by changes in hydraulic oil temperature, making it difficult to break through the ±0.05mm bottleneck. Second, traditional pneumatic / hydraulic drive systems require complex pipelines, valves, and energy storage devices, which not only occupy a lot of installation space but also pose a risk of oil leakage, limiting their application in scenarios with high cleanliness requirements such as semiconductor manufacturing and food processing. Furthermore, in existing technologies, the stroke adjustment of cylinders and hydraulic cylinders mostly relies on mechanical limit blocks or throttle valves, which cannot achieve dynamic digital adjustment of stroke parameters and is difficult to meet the needs of flexible production lines for rapid changeover. With the continuous improvement of equipment precision, reliability, and intelligence level in intelligent manufacturing, existing technical solutions can no longer meet the technical requirements of ±0.01mm-level positioning accuracy, millimeter-level stroke resolution, and fully electronic control for lifting devices in emerging application scenarios such as high-precision assembly (e.g., optical component docking) and micro-operations (e.g., biological sample extraction). Utility Model Content

[0003] Therefore, in view of the above problems, this utility model provides an anti-rotation lifting device that combines high precision and high reliability.

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

[0005] An anti-rotation lifting device includes a drive motor, a threaded rod, a mounting sleeve, a lifting seat, a connecting seat, a bushing, and an end cap. The mounting sleeve has a protruding mounting seat on its outer surface, and the mounting seat has a strip-shaped groove for easy installation. The mounting sleeve has a through hole running vertically along its central axis. The lifting seat passes through the through hole, and its lower end protrudes from the mounting sleeve and is fixedly connected to the connecting seat. The outer surface of the lifting seat has vertically distributed sliding grooves. The mounting sleeve has a first mounting hole corresponding to the sliding grooves, and a fixing rod passes through the first mounting hole. The inner end of the fixing rod, located within the sliding groove, is positioned on a roller. The bushing is located between the lifting seat and the mounting sleeve. The end cap is located at the lower end of the mounting sleeve and is used to fix the bushing. The upper end face of the lifting seat has a threaded hole. The drive motor is located at the upper end of the mounting sleeve, and the threaded rod is located on the rotating shaft of the drive motor. The threaded rod is threadedly connected to the threaded hole of the lifting seat.

[0006] Furthermore, the mounting sleeve is provided with a second mounting hole on the upper side of the mounting base, and a bearing is provided in the second mounting hole.

[0007] Furthermore, the connecting seat includes an upper connecting part, a lower connecting part, and an intermediate connecting part connecting the upper connecting part and the lower connecting part. The upper connecting part, the intermediate connecting part, and the lower connecting part are an integral structure. The lateral width of the intermediate connecting part is smaller than the lateral width of the lower connecting part, and the lateral width of the lower connecting part is smaller than the lateral width of the upper connecting part, so that guide grooves are formed on both sides of the upper connecting part and the lower connecting part. Connecting holes are provided on both sides of the upper connecting part.

[0008] Furthermore, positioning holes are provided on both longitudinal sides of the intermediate connecting part.

[0009] Furthermore, the end cap includes a cover body, the middle of which is provided with a third mounting hole for the lifting seat to pass through, a sealing groove is provided on the cover body and on the lower part of the inner surface of the third mounting hole, and an end face for abutting against the lower end of the bushing and a positioning protrusion for positioning the mounting sleeve are provided on the cover body and on the upper side of the sealing groove.

[0010] By adopting the aforementioned technical solution, the beneficial effects of this utility model are as follows: This anti-rotation lifting device, using a drive motor to drive a threaded rod connected to the lifting seat via a threaded connection, compared to the low positioning accuracy problems caused by the compressibility of compressed air, the pulsating characteristics of hydraulic pump station output pressure, and changes in hydraulic oil temperature in traditional cylinders or hydraulic cylinders, can easily achieve dynamic digital adjustment of stroke parameters. This overcomes the shortcomings of existing technologies where cylinder and hydraulic cylinder stroke adjustment relies on mechanical limit blocks or throttle valves, which cannot meet the rapid changeover requirements of flexible production lines. It can achieve better positioning accuracy, meeting the needs of high-precision assembly and micro-operations. The device meets high precision requirements for lifting devices; it avoids the risk of oil leakage in traditional pneumatic / hydraulic drive systems, making it more reliable in applications with high cleanliness requirements such as semiconductor manufacturing and food processing; at the same time, the overall structure is simple, reducing complex pipelines, valves, and energy storage devices, thus lowering the failure rate and improving the stability of device operation; and a sliding groove is set on the outer surface of the lifting seat, with a first mounting hole at the corresponding location of the mounting sleeve. Through the cooperation of the fixing rod and rollers, as well as the setting of the bushing, the rotation of the lifting seat is effectively restricted, ensuring the smoothness and straightness of the lifting process and improving the overall performance of the device. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present utility model;

[0012] Figure 2 This is an exploded structural diagram of an embodiment of the present invention;

[0013] Figure 3 This is a three-dimensional structural diagram of the end cap in an embodiment of this utility model. Detailed Implementation

[0014] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0015] The embodiment of this utility model is as follows:

[0016] refer to Figure 1 , Figure 2 and Figure 3As shown, an anti-rotation lifting device includes a drive motor 1, a threaded rod 2, a mounting sleeve 3, a lifting seat 4, a connecting seat 5, a bushing 6, and an end cap 7. The outer side of the mounting sleeve 3 has a protruding mounting seat 8, which has a groove 9 for easy installation. The mounting sleeve 3 has a through hole 10 extending vertically along its central axis. The lifting seat 4 passes through the through hole 10, and its lower end protrudes from the mounting sleeve 3 and is fixedly connected to the connecting seat 5. The outer surface of the lifting seat 4 has vertically distributed sliding grooves 11. The mounting sleeve 3... A first mounting hole 12 is provided corresponding to the slide groove 11. A fixing rod 13 passes through the first mounting hole 12. The inner end of the fixing rod 13 is located inside the slide groove 11 and is provided with a roller 14. A bushing 6 is provided between the lifting seat 4 and the mounting sleeve 3. An end cap 7 is provided at the lower end of the mounting sleeve 3 for fixing the bushing 6. A threaded hole 15 is provided on the upper end face of the lifting seat 4. A drive motor 1 is provided at the upper end of the mounting sleeve 3. A threaded rod 2 is provided on the rotating shaft of the drive motor 1. The threaded rod 2 is threadedly connected to the threaded hole 15 of the lifting seat 4.

[0017] This anti-rotation lifting device uses a drive motor 1 to drive a threaded rod 2 that is threadedly connected to the lifting seat 4. Compared to traditional pneumatic or hydraulic cylinders, which suffer from low positioning accuracy due to the compressibility of compressed air, the pulsating characteristics of hydraulic pump station output pressure, and changes in hydraulic oil temperature, this device can easily achieve dynamic digital adjustment of stroke parameters. It overcomes the shortcomings of existing technologies where pneumatic and hydraulic cylinder stroke adjustment relies on mechanical limit blocks or throttle valves, failing to meet the rapid changeover requirements of flexible production lines. This results in better positioning accuracy, meeting the high-precision requirements of high-precision assembly and micro-operations for lifting devices; and avoids… The traditional pneumatic / hydraulic drive system has a lower risk of oil leakage, making it more reliable in applications with high cleanliness requirements such as semiconductor manufacturing and food processing. At the same time, the overall structure is simple, reducing complex pipelines, valves, and energy storage devices, thus lowering the failure rate and improving the stability of the device operation. Furthermore, a sliding groove 11 is provided on the outer surface of the lifting seat 4, and a first mounting hole 12 is provided at the corresponding location on the mounting sleeve 3. Through the cooperation of the fixing rod 13 and the roller 14, as well as the setting of the bushing 6, the rotation of the lifting seat 4 is effectively restricted, ensuring the smoothness and straightness of the lifting process and improving the overall performance of the device.

[0018] In this embodiment, a second mounting hole 16 is provided on the mounting sleeve 3 and on the upper side of the mounting base 8. A bearing 17 is provided on the second mounting hole 16 to improve the installation strength of the mounting sleeve 3 and enable flexible rotation, thereby improving the stability and positioning accuracy of the device operation and enhancing the overall reliability and service life of the device.

[0019] Furthermore, the connecting seat 5 includes an upper connecting part 51, a lower connecting part 52, and an intermediate connecting part 53 connecting the upper connecting part 51 and the lower connecting part 52. The upper connecting part 51, the intermediate connecting part 53, and the lower connecting part 52 are an integral structure. The lateral width of the intermediate connecting part 53 is smaller than that of the lower connecting part 52, and the lateral width of the lower connecting part 52 is smaller than that of the upper connecting part 51. This results in guide grooves 54 forming on both sides of the upper connecting part 51 and the lower connecting part 52. The upper connecting part 51 has connecting holes 55 on both sides of its lateral direction, which ensures the stability of the connection between the connecting seat 5 and the connected component and further improves the stability of lifting. The connecting holes 55 on both sides of the upper connecting part 51 facilitate installation and connection with other equipment or components, improves the versatility and integration of the device, and facilitates application and assembly in different scenarios.

[0020] Furthermore, positioning holes 56 are provided on both longitudinal sides of the intermediate connecting part 53. During the installation and debugging of the device, the connecting seat 5 can be accurately positioned through the positioning holes 56 to ensure that the relative position between the connecting seat 5 and other components is accurate, thereby further improving the overall assembly accuracy and operational stability of the device.

[0021] In this embodiment, the end cover 7 includes a cover body 71. The middle of the cover body 71 is provided with a third mounting hole 72 for the lifting seat 4 to pass through. The cover body 71 and the lower part of the inner surface of the third mounting hole 72 are provided with a sealing groove 73. The cover body 71 and the upper side of the sealing groove 73 are provided with an end face 74 for abutting the lower end of the bushing 6 and a positioning protrusion ring 75 for positioning the mounting sleeve 3. The sealing groove 73 on the lower part of the inner surface of the third mounting hole 72 on the cover body 71 of the end cover 7 can install a sealing element, effectively preventing dust, impurities and other contaminants from entering the interior of the mounting sleeve, protecting the bushing 6 and the lifting seat 4 and other components, improving the sealing performance and reliability of the device, and extending the service life of the device. In addition, the end face for abutting the lower end of the bushing 6 and the positioning protrusion ring 75 for positioning the mounting sleeve 3 on the cover body 71 can accurately position and install the bushing 6 and the mounting sleeve 3, ensuring the relative positional accuracy between the components, thereby improving the assembly accuracy and operating performance of the entire anti-rotation lifting device.

[0022] 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 as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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 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 invention according to the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0025] Although the invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the invention without departing from the spirit and scope of the invention as defined in the appended claims, all of which shall be within the scope of protection of the invention.

Claims

1. A deflection prevention lifting device, characterized in that: The device includes a drive motor, a threaded rod, a mounting sleeve, a lifting seat, a connecting seat, a bushing, and an end cap. The mounting sleeve has a protruding mounting seat on its outer surface, and the mounting seat has a groove for easy installation. The mounting sleeve has a through hole running vertically along its central axis. The lifting seat passes through the through hole, and its lower end protrudes from the mounting sleeve and is fixedly connected to the connecting seat. The outer surface of the lifting seat has vertically distributed sliding grooves. The mounting sleeve has a first mounting hole corresponding to the sliding grooves, and a fixing rod passes through the first mounting hole. The inner end of the fixing rod, located within the sliding groove, is fitted with a roller. The bushing is located between the lifting seat and the mounting sleeve. The end cap is located at the lower end of the mounting sleeve and is used to fix the bushing. The upper end face of the lifting seat has a threaded hole. The drive motor is located at the upper end of the mounting sleeve. The threaded rod is located on the rotating shaft of the drive motor and is threadedly connected to the threaded hole of the lifting seat.

2. The anti-rotation lifting device according to claim 1, characterized in that: The mounting sleeve has a second mounting hole located on the upper side of the mounting base, and a bearing is provided in the second mounting hole.

3. The anti-rotation lifting device according to claim 1 or 2, characterized in that: The connector includes an upper connecting part, a lower connecting part, and an intermediate connecting part connecting the upper connecting part and the lower connecting part. The upper connecting part, the intermediate connecting part, and the lower connecting part are an integral structure. The lateral width of the intermediate connecting part is smaller than the lateral width of the lower connecting part, and the lateral width of the lower connecting part is smaller than the lateral width of the upper connecting part, so that guide grooves are formed on both sides of the upper connecting part and the lower connecting part. Connecting holes are provided on both sides of the upper connecting part.

4. The anti-rotation lifting device according to claim 3, characterized in that: Positioning holes are provided on both longitudinal sides of the intermediate connecting part.

5. The anti-rotation lifting device according to claim 4, characterized in that: The end cap includes a cover body, the middle of which is provided with a third mounting hole for the lifting seat to pass through, a sealing groove is provided on the lower part of the inner surface of the cover body located at the third mounting hole, and an end face for abutting the lower end of the bushing and a positioning protrusion for positioning the mounting sleeve are provided on the cover body located on the upper side of the sealing groove.

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