A ball screw
By installing a fixing mechanism and an elastic dust removal component on the ball screw, the thread grooves of the screw body are automatically cleaned, solving the problem of dust and impurities affecting the accuracy and stability of the equipment and achieving automatic dust removal.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU FUYANG LIGA MOTOR CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-30
Smart Images
Figure CN224433307U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of transmission device technology, and in particular to a ball screw. Background Technology
[0002] Ball screws are ideal products for converting rotary motion into linear motion, or vice versa. A ball screw is a precision transmission element that achieves the conversion between rotary and linear motion through the rolling of balls between a screw and a nut, and has gradually replaced traditional trapezoidal screws. Its core components include the screw shaft, nut, and balls, and it is widely used in machinery manufacturing, automation equipment, and other fields.
[0003] Currently, existing ball screws are prone to accumulating dust and impurities from the ball thread rod during operation. These impurities can easily be carried into the ball screw sleeve, increasing the internal friction of the balls and causing accelerated wear of the ball screw. This can significantly shorten the lifespan of the ball screw. Manually removing dust from the screw may result in insufficient cleaning of the thread grooves, leading to the accumulation of dust and impurities that can affect the accuracy and stability of the equipment using the screw. Utility Model Content
[0004] The purpose of this application is to provide a ball screw that has the advantages of automatically moving and engaging with the threaded grooves of the screw body through elastic dust removal components fixed at both ends, and automatically removing dust and impurities from the screw body in conjunction with the movement path of the screw sleeve. This solves the problems that the screw sleeve is prone to accumulating dust and impurities from the ball screw thread rod, which can easily be carried into the inside of the ball screw sleeve. Manually removing dust from the screw may result in insufficient cleaning of the threaded grooves, leading to the accumulation of dust and impurities that affects the accuracy and stability of the equipment using the screw.
[0005] The ball screw provided in this application adopts the following technical solution: it includes a screw body, and a screw sleeve is threadedly connected to the outer surface of the screw body; a fixing mechanism is sleeved on the outer surface of the screw sleeve, an extension component is fixedly connected to the outer surface of the fixing mechanism, a fixing bolt is threadedly connected to the inner wall of the extension component, and an elastic dust removal component is threadedly connected to the inside of the extension component through the fixing bolt.
[0006] By adopting the above technical solution, the fixing mechanism is symmetrically sleeved on the outside of the lead screw sleeve for fixation. Before installation, the fixing bolt passes through the expansion component and connects to the elastic dust removal component through the expansion component. This allows the elastic dust removal component to symmetrically wrap around the lead screw body. In this way, when the lead screw body is rotating, the drive of the lead screw sleeve can drive the fixing mechanism and the expansion components on both sides to move together. The elastic dust removal components fixed at both ends can move automatically and engage with the threaded grooves of the lead screw body to rub and clean it. In conjunction with the movement path of the lead screw sleeve, the lead screw body can automatically achieve the effect of dust removal and impurity removal.
[0007] Preferably, the fixing mechanism includes an annular fixing sleeve, with fixing plates fixedly connected to the top and bottom of the annular fixing sleeve, and fixing rods threadedly connected to the outer surface of the fixing plates.
[0008] By adopting the above technical solution, the annular fixing sleeve is placed on the outside of the lead screw sleeve, so that the inner wall of the annular fixing sleeve fits against the outside of the lead screw sleeve. With the fixing rod penetrating into the inside of the fixing plate to lock it, the annular fixing sleeve and the lead screw sleeve can be quickly fixed, providing a fixing and support effect for the expansion component and the flexible dust removal component.
[0009] Preferably, there are two annular fixing sleeves, the expansion components are located on one side of each of the two annular fixing sleeves, and there are several fixing rods.
[0010] By adopting the above technical solution, the annular fixing sleeve is fixed to the lead screw sleeve in a split manner through the cooperation of two sets of symmetrical annular fixing sleeves and fixing plates. With the help of the fixing rod, it can be quickly locked and loosened with the lead screw sleeve, so that it can be flexibly disassembled when cleaning is not required.
[0011] Preferably, the expansion component includes a fixing block, one end of which is fixedly connected to a U-shaped expansion block. The U-shaped expansion block has a buffer groove inside, and the fixing bolt passes through the U-shaped expansion block and extends into the buffer groove.
[0012] By adopting the above technical solution, the fixing blocks are located at the two ends of each annular fixing sleeve. With the help of the U-shaped extension blocks, they can extend a certain distance to both ends to provide installation space for the elastic dust removal component. Furthermore, the buffer grooves allow the elastic dust removal component to have a slight rebound space when the lead screw body vibrates slightly during the movement of the dust removal component, so as to avoid friction damage to the lead screw body.
[0013] Preferably, the elastic dust removal assembly includes an annular dust removal brush, a spring column is fixedly connected to the outer surface of the annular dust removal brush, a threaded block is fixedly connected to one end of the spring column, and one end of the fixing bolt is threadedly connected to the inside of the threaded block.
[0014] By adopting the above technical solution, a threaded block is set at one end of the spring column, and a fixing bolt is used. When it needs to be installed, the fixing bolt is inserted into the buffer groove inside the U-shaped extension block and extends into the inside of the threaded block. The bolt is rotated and locked to fix the threaded block inside the U-shaped extension block. This allows the annular dust removal brush to be close to the outside of the lead screw body. When the lead screw sleeve moves, it drives the annular dust removal brush to move together to achieve the effect of removing dust and impurities from the lead screw body.
[0015] Preferably, the inner wall of the annular dust removal brush is provided with threads, and the number of annular dust removal brushes is set to several, with the several annular dust removal brushes being symmetrically arranged in pairs on both sides of the lead screw body.
[0016] By adopting the above technical solution, the internal thread is designed to fit the inner wall of the annular dust removal brush with the threaded groove of the lead screw body. This allows the annular dust removal brush to make contact and friction with every part of the lead screw body when it moves, removing dust and impurities from the inside of the groove and achieving a thorough cleaning effect. In addition, with the spring column, when the lead screw body vibrates slightly, the spring column can cause the annular dust removal brush to rebound slightly, thus preventing damage to the lead screw body from rigid contact.
[0017] Preferably, a plurality of spring posts and threaded blocks are provided, and the plurality of spring posts and threaded blocks are fixedly connected in pairs to the outside of the annular dust removal brush.
[0018] By adopting the above technical solution, the spring columns fixed to the outside of the annular dust removal brush in pairs can provide balanced support for the annular dust removal brush, preventing the annular dust removal brush from shifting position during movement and resulting in poor cleaning effect.
[0019] Preferably, the outer surface of the fixing plate is fitted with an anti-detachment sleeve, and the number of the anti-detachment sleeves is set to two.
[0020] By adopting the above technical solution, the connection strength between the fixing plates can be increased by using a flexible anti-loosening sleeve on the outside of the fixing plate, so as to avoid the situation where the fixing rod becomes loose and the annular fixing sleeve falls off.
[0021] In summary, this application includes at least one of the following beneficial technical effects of ball screws:
[0022] This ball screw is fixed by symmetrically sleeved on the outside of the screw sleeve. Before installation, the fixing bolt passes through the expansion component and connects to the elastic dust removal component, so that the elastic dust removal component can symmetrically wrap around the screw body. In this way, when the screw body is running, the screw sleeve is driven to move, which can drive the fixing mechanism and the expansion components on both sides to move together. The elastic dust removal components fixed at the front and rear ends can move automatically and engage with the threaded grooves of the screw body to rub and clean them. In conjunction with the movement path of the screw sleeve, the screw body can automatically achieve the effect of dust removal and impurity removal. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of this application;
[0024] Figure 2 This is a schematic diagram of the main structure of the lead screw in this application;
[0025] Figure 3 This is a schematic diagram of the structure of the annular fixing sleeve of this application;
[0026] Figure 4 This is a schematic diagram of the structure of the U-shaped expansion block in this application;
[0027] Figure 5 This is a schematic diagram of the annular dust removal brush of this application.
[0028] In the picture:
[0029] 1. Lead screw body; 2. Lead screw sleeve; 3. Fixing mechanism; 4. Extension assembly; 5. Fixing bolt; 6. Elastic dust removal assembly; 301. Annular fixing sleeve; 302. Fixing plate; 303. Fixing rod; 401. Fixing block; 402. U-shaped extension block; 403. Buffer groove; 601. Annular dust removal brush; 602. Spring column; 603. Threaded block; 304. Anti-detachment sleeve. Detailed Implementation
[0030] The following is in conjunction with the appendix Figure 1 - Appendix Figure 5 This application will be described in further detail below.
[0031] Example 1: A ball screw, as shown in the figure Figure 1 , Figure 2 and Figure 3The system includes a lead screw body 1, with a lead screw sleeve 2 threadedly connected to its outer surface. A fixing mechanism 3 is fitted onto the outer surface of the lead screw sleeve 2, and an extension component 4 is fixedly connected to the outer surface of the fixing mechanism 3. A fixing bolt 5 is threadedly connected to the inner wall of the extension component 4, and an elastic dust removal component 6 is threadedly connected to the inside of the extension component 4 through the fixing bolt 5. The fixing mechanism 3 is symmetrically fitted onto the outside of the lead screw sleeve 2 to fix it. Before installation, the fixing bolt 5 passes through the extension component 4 and connects to the elastic dust removal component 6, so that the elastic dust removal component 6 can symmetrically loop around the lead screw body 1. In this way, when the lead screw body 1 is running, it drives the lead screw sleeve 2 to move, which can drive the fixing mechanism 3 and the extension components 4 on both sides to move together. The elastic dust removal component 6, fixed at both ends, can move automatically and fit into the threaded groove of the lead screw body 1 to rub and clean it. In conjunction with the movement path of the lead screw sleeve 2, it can automatically achieve the effect of dust removal and impurity removal on the lead screw body 1.
[0032] Example 2: A ball screw, as shown in the figure Figure 1 , Figure 2 and Figure 5 The fixing mechanism 3 includes an annular fixing sleeve 301, with fixing plates 302 fixedly connected to both the top and bottom of the annular fixing sleeve 301. A fixing rod 303 is threaded onto the outer surface of the fixing plate 302. Two annular fixing sleeves 301 are provided. An extension component 4 is located on one side of each of the two annular fixing sleeves 301. Several fixing rods 303 are provided. The extension component 4 includes a fixing block 401, with a U-shaped extension block 402 fixedly connected to one end of the fixing block 401. A buffer groove 403 is provided inside the U-shaped extension block 402. A fixing bolt 5 passes through the U-shaped extension block 402 and extends into the buffer groove 403. By fitting the annular fixing sleeve 301 onto the outside of the lead screw sleeve 2, the inner wall of the annular fixing sleeve 301 fits against the outside of the lead screw sleeve 2. The fixing rod 303 then passes through the fixing plate 302 and locks it in place, thereby enabling… The ring-shaped fixing sleeve 301 can be quickly fixed to the lead screw sleeve 2, providing a fixed and support effect for the extension component 4 and the elastic dust removal component 6. Through the cooperation of two sets of symmetrical ring-shaped fixing sleeves 301 and fixing plates 302, the ring-shaped fixing sleeves 301 are fixed to the lead screw sleeve 2 in a split manner. With the help of the fixing rod 303, they can be quickly locked and loosened to the lead screw sleeve 2, so that they can be flexibly disassembled when cleaning is not required. The fixing blocks 401 are located at both ends of each ring-shaped fixing sleeve 301. With the help of the U-shaped extension block 402, they can extend a certain distance to both ends to provide installation space for the elastic dust removal component 6. Furthermore, through the setting of the buffer groove 403, when the lead screw body 1 vibrates slightly during the movement of the elastic dust removal component 6 for dust removal, the elastic dust removal component 6 has a slight rebound space to avoid friction damage to the lead screw body 1.
[0033] Example 3: A ball screw, as shown in the figure Figure 4 and Figure 5 The elastic dust removal assembly 6 includes an annular dust removal brush 601. A spring post 602 is fixedly connected to the outer surface of the annular dust removal brush 601. A threaded block 603 is fixedly connected to one end of the spring post 602. One end of the fixing bolt 5 is threaded into the inside of the threaded block 603. The inner wall of the annular dust removal brush 601 is threaded. Several annular dust removal brushes 601 are provided, and the several annular dust removal brushes 601 are symmetrically arranged in pairs on both sides of the lead screw body 1. By setting the threaded block 603 at one end of the spring post 602, and cooperating with the fixing bolt 5, when it is necessary to install it, the fixing bolt 5 is inserted into the buffer groove 403 inside the U-shaped extension block 402 and extends into the inside of the threaded block 603. It is then rotated and locked to secure the threaded block. 603 is fixed inside the U-shaped extension block 402, so that the annular dust removal brush 601 is close to the outside of the lead screw body 1. When the lead screw sleeve 2 moves, it drives the annular dust removal brush 601 to move together to remove dust and impurities from the lead screw body 1. Through the setting of the internal thread, the inner wall of the annular dust removal brush 601 fits with the thread groove of the lead screw body 1, so that when the annular dust removal brush 601 moves, it can contact and rub against every part of the lead screw body 1 to remove dust and impurities inside the groove, achieving a thorough cleaning effect. In addition, with the setting of the spring column 602, when the lead screw body 1 vibrates slightly, the spring column 602 can drive the annular dust removal brush 601 to rebound slightly, so as to avoid damage to the lead screw body 1 by rigid contact.
[0034] The implementation principle of this application embodiment is as follows: In use, the fixing bolt 5 is rotated to penetrate into the interior of the U-shaped expansion block 402 and the threaded block 603 is fitted against the inner wall of the buffer groove 403, so that the fixing bolt 5 penetrates into the interior of the threaded block 603 and fixes the annular dust removal brush 601 to one side of the U-shaped expansion block 402. The half-shaped annular fixing sleeve 301 is clamped and sleeved on both sides of the screw sleeve 2, and the annular fixing sleeve 301 is fixed to the outside of the screw sleeve 2 by rotating the fixing rod 303 to penetrate into the interior of the fixing plate 302. The two sets of anti-detachment clips 304 are respectively clipped onto the top fixing plate 302 and the bottom fixing plate 302. The annular fixing sleeve 301 is clamped again, and the U-shaped expansion block at the end of the fixing block 401 is fixed. 402 are located at the front and rear ends of the lead screw sleeve 2, respectively, and the threads on the inner side of the annular dust removal brush 601 are engaged with the threads on the outer side of the lead screw body 1. By starting the drive device, the lead screw body 1 is rotated, which drives the lead screw sleeve 2 to move and drives the annular fixed sleeve 301 to move. At the same time, the annular dust removal brushes 601 at both ends of the U-shaped extension block 402 are driven to move outside the lead screw body 1. They also cooperate with the internal threads and grooves to contact and rub against each other, gradually removing dust and impurities from the lead screw body 1. During the movement, through the cooperation of the spring column 602 and the buffer groove 403, the spring column 602 can drive the annular dust removal brush 601 to repeatedly rebound and reset, so as to avoid rigid friction damage to the lead screw body 1 when it vibrates.
[0035] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.
Claims
1. A ball screw comprising a screw body (1), characterized in that: The outer surface of the lead screw body (1) is threaded with a lead screw sleeve (2); the outer surface of the lead screw sleeve (2) is fitted with a fixing mechanism (3), the outer surface of the fixing mechanism (3) is fixedly connected with an extension component (4), the inner wall of the extension component (4) is threaded with a fixing bolt (5), and the interior of the extension component (4) is threaded with an elastic dust removal component (6) through the fixing bolt (5).
2. The ball screw according to claim 1, characterized in that: The fixing mechanism (3) includes an annular fixing sleeve (301), and a fixing plate (302) is fixedly connected to the top and bottom of the annular fixing sleeve (301). A fixing rod (303) is threadedly connected to the outer surface of the fixing plate (302).
3. A ball screw according to claim 2, characterized in that: The number of the annular fixing sleeves (301) is two, the extension components (4) are respectively located on one side of the two annular fixing sleeves (301), and the number of fixing rods (303) is several.
4. A ball screw according to claim 1, characterized in that: The expansion component (4) includes a fixing block (401), one end of which is fixedly connected to a U-shaped expansion block (402). A buffer groove (403) is provided inside the U-shaped expansion block (402), and the fixing bolt (5) passes through the U-shaped expansion block (402) and extends into the interior of the buffer groove (403).
5. A ball screw according to claim 1, characterized in that: The elastic dust removal assembly (6) includes an annular dust removal brush (601), a spring column (602) is fixedly connected to the outer surface of the annular dust removal brush (601), a threaded block (603) is fixedly connected to one end of the spring column (602), and one end of the fixing bolt (5) is threadedly connected to the inside of the threaded block (603).
6. A ball screw according to claim 5, characterized in that: The inner wall of the annular dust removal brush (601) is provided with threads, and the number of the annular dust removal brush (601) is set to several, with the several annular dust removal brushes (601) respectively symmetrically arranged on both sides of the lead screw body (1).
7. A ball screw according to claim 5, characterized in that: The number of spring posts (602) and threaded blocks (603) is provided in several, and the spring posts (602) and threaded blocks (603) are fixedly connected to the outside of the annular dust removal brush (601) in pairs.
8. A ball screw according to claim 2, characterized in that: The outer surface of the fixing plate (302) is fitted with an anti-detachment sleeve (304), and there are two anti-detachment sleeves (304).