Insertion tube type heavy-load ball screw assembly
By designing a tubular high-load ball screw pair with storage and oil injection components, the problem of insufficient lubrication under high-speed and heavy-load conditions is solved, achieving automatic lubrication, reducing wear, and minimizing manual intervention.
Patent Information
- Application Number
- CN202422893088.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-27
AI Technical Summary
Existing insert-type ball screw pairs suffer from insufficient lubrication under high-speed and heavy-load conditions, leading to accelerated wear. Manual lubrication is not timely and is costly.
A plug-in tube-type heavy-load ball screw pair was designed, which included a storage component, an oil injection component and a lubrication component to achieve automatic lubrication. Lubricating oil was automatically injected into the balls through the cooperation of the guide groove, sponge ring and guide cotton strip.
It enables timely lubrication of balls under high-speed and heavy-load conditions, reduces wear, improves lubrication efficiency, and reduces the need for manual intervention.
Smart Images
Figure CN223483386U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ball screw pair technology, specifically to insert-type high-load ball screw pair. Background Art
[0002] In today's society, with the rapid development of industrial automation, the application of ball screw assemblies is becoming increasingly widespread. Currently, ball screw assemblies in China are mainly used in low-speed, light-load environments. However, with the popularization of industrial automation, more and more mechanical equipment requires high-speed, heavy-load ball screw nut assemblies. In existing technologies, to ensure the high-speed movement of ball screw assemblies, insert-type ball screw assemblies are usually used. Insert-type ball screw assemblies require lubrication during use. Currently, the main lubrication methods for ball screw assemblies are manual oiling and timed and quantitative oiling by oiling devices. Manual oiling cannot guarantee timeliness. For ball screw assemblies that operate at high speeds for a long time, insufficient lubrication will lead to insufficient lubrication and accelerated wear. Furthermore, oiling devices have better oiling effects, but are more expensive. Therefore, we propose insert-type high-load ball screw assemblies. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a tube-type high-load ball screw pair that can automatically perform oil lubrication during use, which can effectively solve the problems in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a tube-type high-load ball screw assembly, including a screw shaft and a lubrication assembly;
[0005] Lead screw shaft: A lead screw nut is connected to the surface of the lead screw nut. A guide groove is provided inside the lead screw nut. The two ends of the guide groove are connected by a return pipe. Evenly distributed balls are provided inside the guide groove and the return pipe. A storage component is installed on the upper side of the lead screw nut. An oil injection component is installed on the lower side of the storage component.
[0006] Lubrication assembly: includes a threaded groove, a sponge ring, and a guide cotton strip. The upper side of the lead screw nut has a threaded groove, and the lower end of the threaded groove is placed inside the threaded groove. The guide cotton strip is fixed inside the sponge ring. The lower side of the threaded groove has a fixing hole, which communicates with the guide groove. The guide cotton strip is fixed inside the guide groove. The lower end of the oil injection assembly is located at the upper end of the threaded groove. The lubrication assembly is used to lubricate the balls.
[0007] Furthermore, the storage component includes a fixing block, a storage box, and a flow guide frame. The fixing block is fixed to the upper side of the lead screw nut, the storage box is fixed to the upper side of the fixing block, and the flow guide frame is fixed inside the storage box. The storage component is used to store lubricating oil.
[0008] Furthermore, the oil injection assembly includes an oil injection hose and an external threaded ring. An oil injection hole is fixed to the lower side of the storage tank. An oil injection hose is fixed inside the oil injection hole. An external threaded ring is fixed to the lower end of the surface of the oil injection hose. The external threaded ring is threadedly connected to the upper end of the threaded groove. By setting the oil injection assembly, lubricating oil is injected into the interior of the threaded groove.
[0009] Furthermore, the storage box has an injection port on its upper side, and the internal thread of the injection port is connected to a sealing plug to seal the storage box.
[0010] Furthermore, an observation port is provided on the upper side of the storage box, and a transparent plate is fixed inside the observation port. By setting the transparent plate, the user can easily observe the situation inside the storage box.
[0011] Furthermore, two corresponding fixing plates are fixed on the left and right sides of the lead screw nut, and a sponge block is fixed on the lower side of the fixing plate. Both sponge blocks are located in the lead screw groove on the surface of the lead screw shaft, and the lead screw nut is cleaned by setting the sponge blocks.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This insert-type high-load ball screw pair has the following advantages:
[0013] By incorporating an oil injection component, lubricating oil from the storage tank can be injected into the oil injection hose. The lubricating oil then flows downwards into the threaded groove, where it soaks into the sponge ring. From there, it flows through the sponge ring into the guide strip, and finally into the guide groove. This method effectively lubricates the rolling balls without requiring manual oiling, thus improving lubrication efficiency. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the front structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the structure of the guide channel of this utility model;
[0016] Figure 3 This is a front sectional view of the present invention.
[0017] In the diagram: 1. Lead screw shaft, 2. Lead screw nut, 3. Guide groove, 4. Return tube, 5. Ball bearing, 6. Lubrication assembly, 61. Threaded groove, 62. Sponge ring, 63. Guide cotton strip, 7. Storage assembly, 71. Fixing block, 72. Storage box, 73. Guide frame, 8. Oil injection assembly, 81. Oil injection hose, 82. External threaded ring, 9. Transparent plate, 10. Sealing plug, 11. Fixing plate, 12. Sponge block. DETAILED DESCRIPTION
[0018] 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.
[0019] Please see Figure 1-3 This embodiment provides a technical solution: a tube-type high-load ball screw assembly, including a screw shaft 1 and a lubrication assembly 6;
[0020] Lead screw shaft 1: A lead screw nut 2 is connected to its surface. The lead screw nut 2 has a guide groove 3 inside, and the two ends of the guide groove 3 are connected by a return pipe 4. Evenly distributed balls 5 are arranged inside the guide groove 3 and the return pipe 4. A storage component 7 is installed on the upper side of the lead screw nut 2, and an oil injection component 8 is installed on the lower side of the storage component 7. The storage component 7 includes a fixing block 71, a storage tank 72, and a guide frame 73. The fixing block 71 is fixed to the upper side of the lead screw nut 2, and the upper side of the fixing block 71 is fixed... There is a storage tank 72, and a flow guide frame 73 is fixed inside the storage tank 72. The oil injection assembly 8 includes an oil injection hose 81 and an external threaded ring 82. An oil injection hole is locked on the lower side of the storage tank 72. An oil injection hose 81 is fixed inside the oil injection hole. An external threaded ring 82 is fixed to the lower end of the surface of the oil injection hose 81. The external threaded ring 82 is threadedly connected to the upper end of the threaded groove 61. The lubricating oil is injected into the threaded groove 61 by setting the oil injection assembly 8, and the lubricating oil is stored by setting the storage assembly 7.
[0021] Lubrication component 6 includes a threaded groove 61, a sponge ring 62, and a guide cotton strip 63. The threaded groove 61 is provided on the upper side of the lead screw nut 2. The sponge ring 62 is placed at the lower end of the threaded groove 61. The guide cotton strip 63 is fixed inside the sponge ring 62. A fixing hole is provided on the lower side of the threaded groove 61. The fixing hole communicates with the guide groove 3. The guide cotton strip 63 is fixed inside the guide groove 3. The lower end of the oil injection component 8 is located at the upper end of the threaded groove 61. The ball bearing 5 is lubricated by setting the lubrication component 6.
[0022] The storage tank 72 has an injection port on its upper side, and a sealing plug 10 is threaded inside the injection port to seal the storage tank 72.
[0023] The storage box 72 has an observation port on its upper side, and a transparent plate 9 is fixed inside the observation port. The transparent plate 9 allows the user to easily observe the inside of the storage box 72.
[0024] Among them: two corresponding fixing plates 11 are fixed on the left and right sides of the lead screw nut 2, and a sponge block 12 is fixed on the lower side of the fixing plate 11. Both sponge blocks 12 are located in the lead screw groove provided on the surface of the lead screw shaft 1. The lead screw nut 2 is cleaned by setting the sponge blocks 12.
[0025] The working principle of the plug-in type high-load ball screw assembly provided by this utility model is as follows: Before use, the sealing plug 10 can be removed, and then lubricating oil can be injected into the storage tank 72 through the feed port set on the upper side of the storage tank 72. After injection, the sealing plug 10 is reconnected to the storage tank 72. After connection, the lubricating oil inside the storage tank 72 will enter the oil injection hose 81 through the guide frame 73. The lubricating oil entering the oil injection hose 81 will enter the thread groove 61 downwards. The lubricating oil entering the thread groove 61 will soak into the sponge ring 62, and then soak into the guide cotton strip 63 through the sponge ring 62. The oil soaked into the guide cotton strip 63 will be injected downwards into the guide groove 3. In this way, the balls 5 in the rolling process can be lubricated in time without manual oiling, which improves the lubrication efficiency. At the same time, during the movement of the screw nut 2, the two sponge blocks 12 will clean the screw groove of the screw shaft 1. After cleaning, the dust on the screw shaft 1 can be prevented from affecting the movement of the screw nut 2.
[0026] It is worth noting that the PLC controller disclosed in the above embodiments is specifically a Siemens S7-200. The induced draft fan 2 and motor 31 can be freely configured according to the actual application scenario. The control switch group controls the operation of the induced draft fan 2 and motor 31 using the methods commonly used in the prior art, such as the 1LE0003 three-phase asynchronous motor; or the TGC-A high-thrust electric telescopic rod.
[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A tube-type high-load ball screw assembly, characterized in that: Includes a lead screw shaft (1) and a lubrication assembly (6); Lead screw shaft (1): A lead screw nut (2) is connected to the surface. The lead screw nut (2) is provided with a guide groove (3). The two ends of the guide groove (3) are connected by a return pipe (4). The guide groove (3) and the return pipe (4) are provided with evenly distributed balls (5). A storage component (7) is installed on the upper side of the lead screw nut (2). An oil injection component (8) is installed on the lower side of the storage component (7). Lubrication assembly (6): includes a threaded groove (61), a sponge ring (62), and a guide cotton strip (63). The upper side of the lead screw nut (2) is provided with a threaded groove (61). The lower end of the threaded groove (61) is placed with a sponge ring (62). The guide cotton strip (63) is fixed inside the sponge ring (62). The lower side of the threaded groove (61) is provided with a fixing hole. The fixing hole communicates with the guide groove (3). The guide cotton strip (63) is fixed inside the guide groove (3). The lower end of the oil injection assembly (8) is located at the upper end inside the threaded groove (61).
2. The insert-type high-load ball screw assembly according to claim 1, characterized in that: The storage component (7) includes a fixing block (71), a storage box (72) and a flow guide frame (73). The fixing block (71) is fixed on the upper side of the lead screw nut (2), the storage box (72) is fixed on the upper side of the fixing block (71), and the flow guide frame (73) is fixed inside the storage box (72).
3. The insert-type high-load ball screw assembly according to claim 2, characterized in that: The oil injection assembly (8) includes an oil injection hose (81) and an external threaded ring (82). An oil injection hole is fixed on the lower side of the storage tank (72). An oil injection hose (81) is fixed inside the oil injection hole. An external threaded ring (82) is fixed at the lower end of the surface of the oil injection hose (81). The external threaded ring (82) is threadedly connected to the upper end of the threaded groove (61).
4. The insert-type high-load ball screw assembly according to claim 2, characterized in that: The storage tank (72) has an injection port on its upper side, and the injection port is internally threaded with a sealing plug (10).
5. The insert-type high-load ball screw assembly according to claim 2, characterized in that: An observation port is provided on the upper side of the storage box (72), and a transparent plate (9) is fixed inside the observation port.
6. The insert-type high-load ball screw assembly according to claim 1, characterized in that: Two corresponding fixing plates (11) are fixed on the left and right sides of the lead screw nut (2). A sponge block (12) is fixed on the lower side of the fixing plate (11). Both sponge blocks (12) are located in the lead screw groove provided on the surface of the lead screw shaft (1).