Self-lubricating ball screw
By designing the disassembly assembly and sealing mechanism in the ball screw, a comprehensive cleaning of residues at the bottom of the oil cavity is achieved, solving the problem that ordinary brushes cannot be effectively cleaned, and ensuring the sealing and operating efficiency of the ball screw.
Patent Information
- Application Number
- CN202421923915.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-09
AI Technical Summary
When using ball screws, there may be residue at the bottom of the oil cavity, and ordinary brushes cannot be effectively cleaned, resulting in incomplete cleaning and still leaving residue.
A self-lubricating ball screw is designed, including a disassembly assembly and a sealing mechanism. By pulling the pull rope, the positioning insert rod is separated from the lubricant block, and the bottom plate is retracted, so that the spring is pressed and the bottom plate is dragged to separate from the lubricant block. Workers can clean the bottom plate with a brush, install it and fix it into the lubricant block after cleaning, and seal between the bottom plate and the lubricant block through a sealing mechanism to achieve a comprehensive cleaning of residues in the bottom chamber.
It effectively solves the problem of incomplete cleaning of residues at the bottom of the oil chamber. Through the design of the sealing mechanism, the sealing after cleaning is ensured and the accumulation of residues is avoided.
Smart Images
Figure CN222950341U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ball screws, in particular to a self-lubricating ball screw. Background Art
[0002] Ball screw is an ideal product for converting rotary motion into linear motion, or converting linear motion into rotary motion. It is the most commonly used transmission element in tool machinery and precision machinery. It has the characteristics of high precision, reversibility and high efficiency. Due to its small friction resistance, ball screw is widely used in various industrial equipment. Ball screw consists of screw body, screw sleeve, cannula, ball, lubrication block, oil chamber, sealing plug, lubrication ball, cotton rope. When the ball screw is in use, the screw body is driven to rotate by the drive mechanism. , the screw sleeve is limited by the limiting mechanism, so that the screw sleeve moves linearly on the screw surface, and the ball slides between the screw sleeve and the screw body. The ball circulates in the screw sleeve with the help of the insert tube. When lubricating the screw body, pull out the sealing plug, pour the lubricant into the oil chamber of the lubrication block, and then insert the sealing plug. Then when the screw sleeve moves, the cotton rope sucks in the lubricating oil and contacts the lubricating balls, thereby applying the lubricating oil to the lubricating balls, so that the lubricating balls apply the lubricating oil to the rolling track on the surface of the screw body, thereby achieving self-lubrication of the ball screw.
[0003] The inventor found in his daily work that when the ball screw is in use, since the lubricating oil needs to be loaded into the oil chamber, there may be residue at the bottom of the oil chamber. Generally, the sealing plug is pulled out and a brush is used to clean it. However, since ordinary brushes cannot adapt well to the oil chamber, the bottom of the oil chamber may not be cleaned thoroughly and residue may still remain. Utility Model Content
[0004] The purpose of the utility model is to solve the problem that in actual use, since the lubricating oil needs to be loaded into the oil cavity, there may be residues at the bottom of the oil cavity. Generally, the sealing plug is pulled out and a brush is used to clean it. However, since the ordinary brush cannot adapt to the oil cavity well, the bottom of the oil cavity may not be cleaned completely and residues may still remain. Therefore, a self-lubricating ball screw is proposed.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a self-lubricating ball screw, comprising a screw body, a screw sleeve is installed on the surface of the screw body, a cannula is fixedly connected to the upper end of the screw sleeve, lubricating blocks are fixedly connected to the two ends of the screw sleeve, a sealing plug is arranged at the upper end of the lubricating block, a cleaning assembly is arranged on one side of the two lubricating blocks, an oil chamber is opened inside the lubricating block, a cotton rope is arranged on the inner wall of the oil chamber, a lubricating ball is arranged on the side of the lubricating block close to the screw body, a ball is arranged between the screw body and the screw sleeve, a disassembly assembly is arranged at the lower end of the lubricating block, the disassembly assembly comprises a bottom plate slidably inserted at the lower end of the lubricating block, positioning rods are slidably inserted on both sides of the bottom plate, the positioning rods are slidably inserted into the lubricating block, a spring is fixedly connected between the positioning rod and the bottom plate, a pull rope is fixedly connected to the right end of the positioning rod, the pull rope runs through the bottom plate, and a sealing mechanism for sealing is arranged between the bottom plate and the lubricating block.
[0006] The effect achieved by the above-mentioned components is: by disassembling the components, when it is necessary to clean the lubricating oil residue at the bottom of the oil chamber, pull the pull rope to separate the positioning rod from the lubrication block and retract it into the bottom plate, so that the spring is compressed, and then the bottom plate is dragged to separate from the lubrication block. Then the worker can clean the bottom plate with a brush, and after cleaning, install and fix it in the lubrication block, and seal the bottom plate and the lubrication block through the sealing mechanism, so as to achieve the effect of cleaning the residue at the bottom of the oil chamber as comprehensively as possible.
[0007] Preferably, the sealing mechanism comprises a mounting groove opened on the surface of the bottom plate, the inner wall of the mounting groove is provided with a sealing ring, and the sealing ring is inserted into the lubrication block.
[0008] The effect achieved by the above components is: by setting the pushing mechanism, the sealing ring is pushed to be inserted into the lubricating block, thereby sealing between the bottom plate and the lubricating block.
[0009] Preferably, an airbag is installed on the inner wall of the installation groove, and the airbag and the sealing ring are fixed.
[0010] The effect achieved by the above components is: through the pumping mechanism, the air bag in the installation groove is inflated, so that the sealing ring is pushed to be inserted into the lubricating block.
[0011] Preferably, an air groove is opened at the lower end of the bottom plate, an air pipe is fixedly connected between the air bag and the air groove, an air pumping piston is arranged on the inner wall of the air groove, and a push rod is fixedly connected to the lower end of the air pumping piston.
[0012] The effect achieved by the above components is: the push rod is pushed and pulled reciprocally to move the inflation piston, thereby inflating the air groove, and the gas is pumped into the airbag through the air pipe, causing the airbag to swell, and then the push rod is fixed by a fixing mechanism. When it is necessary to retract the sealing ring into the installation groove, the push rod is separated from the air groove, causing the airbag to be obliquely inflated and thus deflated, and the sealing ring is retracted into the installation groove.
[0013] Preferably, a screw is threadedly inserted into the lower end of the push rod, and the screw is threadedly inserted into the bottom plate.
[0014] The effect achieved by the above components is: turning the screws makes them threadedly connected with the base plate and the push rod.
[0015] Preferably, a one-way valve is installed at the lower end of the pumping piston.
[0016] The effect achieved by the above components is: by setting the one-way valve, external gas can enter the gas tank, but vice versa.
[0017] Preferably, the cleaning assembly comprises a grooved block detachably connected to one side of the lubrication block, the inner wall of the grooved block is slidably connected to a mounting block, and the right side of the mounting block is fixedly connected to a brush.
[0018] The effect achieved by the above components is that when the screw body is on the rolling track, the lubrication block moves, so that the grooved block and the brush on the mounting block move, and the brush contacts the screw body, thereby cleaning.
[0019] Preferably, a second spring is fixedly connected to one side of the mounting block, and the other end of the second spring is fixed to the grooved block.
[0020] The effect achieved by the above components is: by setting the second spring, the installation block is squeezed so that the brush is fully in contact with the surface of the screw body.
[0021] In summary, the beneficial effects of the utility model are:
[0022] In the utility model, by disassembling the components, when it is necessary to clean the lubricating oil residue at the bottom of the oil chamber, the pull rope is pulled to separate the positioning plug from the lubricating block and retract it into the bottom plate, so that the spring is compressed and then the bottom plate is dragged to separate from the lubricating block. Then the worker can clean the bottom plate with a brush, and after cleaning, it is installed and fixed in the lubricating block, and the bottom plate and the lubricating block are sealed by a sealing mechanism, so as to achieve the effect of completely cleaning the residue at the bottom of the oil chamber as much as possible. This solves the problem that the lubricating oil needs to be loaded into the oil chamber, so that there may be residue at the bottom of the oil chamber. Generally, the sealing plug is pulled out and the brush is used to clean it. However, since the ordinary brush cannot adapt to the oil chamber well, the bottom of the oil chamber may not be cleaned completely and residue may still remain. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0024] Figure 2 It is a three-dimensional structural schematic diagram of the cross section of the utility model;
[0025] Figure 3 For this utility model Figure 2 A is an enlarged schematic diagram of the three-dimensional structure;
[0026] Figure 4 It is a three-dimensional structural schematic diagram of the cross section of the cleaning component of the utility model.
[0027] Legend: 1. Screw body; 2. Disassembly assembly; 3. Cleaning assembly; 4. Screw sleeve; 5. Insert tube; 6. Lubricating block; 7. Sealing plug; 8. Oil chamber; 9. Lubricating beads; 10. Cotton rope; 11. Ball bearing; 21. Bottom plate; 22. Positioning rod; 23. Spring one; 24. Pull rope; 25. Sealing mechanism; 251. Mounting groove; 252. Sealing ring; 253. Air bag; 254. Air groove; 255. Inflating piston; 256. Push rod; 257. Screw; 31. Mounting block; 32. Brush; 33. Slotted block; 34. Spring two. DETAILED DESCRIPTION
[0028] Reference Figure 1 and Figure 2 As shown, the utility model provides a technical solution: a self-lubricating ball screw includes a screw body 1, a screw sleeve 4 is installed on the surface of the screw body 1, a plug 5 is fixedly connected to the upper end of the screw sleeve 4, lubricating blocks 6 are fixedly connected to both ends of the screw sleeve 4, a sealing plug 7 is arranged on the upper end of the lubricating block 6, a cleaning component 3 is arranged on one side of the two lubricating blocks 6, an oil chamber 8 is opened inside the lubricating block 6, a cotton rope 10 is arranged on the inner wall of the oil chamber 8, a lubricating ball 9 is arranged on the side of the lubricating block 6 close to the screw body 1, a ball 11 is arranged between the screw body 1 and the screw sleeve 4, and a disassembly component 2 is arranged at the lower end of the lubricating block 6.
[0029] The specific settings and functions of the disassembly component 2 and the cleaning component 3 are described in detail below.
[0030] Reference Figure 2 and Figure 3As shown, in this embodiment: the disassembly component 2 includes a bottom plate 21 slidably inserted at the lower end of the lubricating block 6, and positioning rods 22 are slidably inserted on both sides of the bottom plate 21. The positioning rods 22 are slidably inserted into the lubricating block 6. A spring 23 is fixedly connected between the positioning rod 22 and the bottom plate 21. A pull rope 24 is fixedly connected to the right end of the positioning rod 22. The pull rope 24 runs through the bottom plate 21. A sealing mechanism 25 for sealing is provided between the bottom plate 21 and the lubricating block 6. Through the disassembly component 2, when it is necessary to clean the lubricating oil residue at the bottom of the oil chamber 8, the pull rope 24 is pulled to separate the positioning rod 22 from the lubricating block 6 and retract it to the bottom plate 21. The bottom plate 21 is then separated from the lubricating block 6 by the spring 23 being compressed. Then, the worker can use the brush 32 to clean the bottom plate 21. After cleaning, the bottom plate 21 is fixed to the lubricating block 6. The bottom plate 21 and the lubricating block 6 are sealed by the sealing mechanism 25, so as to achieve the effect of cleaning the residue at the bottom of the oil chamber 8 as comprehensively as possible. The sealing mechanism 25 includes a mounting groove 251 provided on the surface of the bottom plate 21. The inner wall of the mounting groove 251 is provided with a sealing ring 252. The sealing ring 252 is inserted into the lubricating block 6. By providing a pushing mechanism, the sealing ring 252 is pushed to be inserted into the lubricating block 6, thereby sealing the bottom plate 21 and the lubricating block. 6, an airbag 253 is installed on the inner wall of the mounting groove 251, and the airbag 253 and the sealing ring 252 are fixed. Through the pumping mechanism, the airbag 253 in the mounting groove 251 is bulged, so that the sealing ring 252 is pushed to be inserted into the lubricating block 6, and an air groove 254 is opened at the lower end of the bottom plate 21, and an air pipe is fixedly connected between the airbag 253 and the air groove 254. An air pumping piston 255 is arranged on the inner wall of the air groove 254, and a push rod 256 is fixedly connected to the lower end of the air pumping piston 255. The push rod 256 is pushed and pulled reciprocally to move the air pumping piston 255, thereby inflating the air groove 254, and pumping the gas into the airbag 2 through the air pipe. 53, so that the airbag 253 is inflated, and then the push rod 256 is fixed by the fixing mechanism, and when it is necessary to retract the sealing ring 252 into the mounting groove 251, the push rod 256 is separated from the air groove 254, so that the airbag 253 is obliquely inflated and thus deflated, and the sealing ring 252 is retracted into the mounting groove 251, and the lower end of the push rod 256 is threadedly inserted with a screw 257, and the screw 257 is threadedly inserted into the bottom plate 21, and the screw 257 is turned to make it threadedly connected with the bottom plate 21 and the push rod 256, and a one-way valve is installed at the lower end of the inflation piston 255. By setting the one-way valve, the external gas can enter the air groove 254, but not vice versa.
[0031] Reference Figure 4As shown, in this embodiment: the cleaning component 3 includes a grooved block 33 detachably connected to one side of the lubricating block 6, the inner wall of the grooved block 33 is slidably connected to the mounting block 31, and the right side of the mounting block 31 is fixedly connected to the brush 32. When rolling on the rolling track on the screw body 1, the lubricating block 6 moves, causing the grooved block 33, so that the brush 32 on the mounting block 31 moves, and the brush 32 contacts the screw body 1, thereby cleaning. A spring 2 34 is fixedly connected to one side of the mounting block 31, and the other end of the spring 2 34 is fixed to the grooved block 33. By setting the spring 2 34, the mounting block 31 is squeezed so that the brush 32 fully contacts the surface of the screw body 1.
[0032] Working principle:
[0033] When the ball 11 screw is in use, the screw body 1 is driven to rotate by the driving mechanism, and the screw sleeve 4 is limited by the limiting mechanism, so that the screw sleeve 4 moves linearly on the screw surface, and the ball 11 slides between the screw sleeve 4 and the screw body. The ball 11 circulates in the screw sleeve 4 with the help of the cannula 5. When lubricating the screw body 1, the sealing plug 7 is pulled out, and the lubricant is poured into the oil chamber 8 of the lubricating block 6, and then the sealing plug 7 is inserted. Then, when the screw sleeve 4 moves, the cotton rope 10 sucks in the lubricating oil and contacts the lubricating ball 9, so that the lubricating ball 9 is smeared with lubricating oil. The lubricating ball 9 applies the lubricating oil to the rolling track on the surface of the screw body 1, thereby achieving self-lubrication of the ball 11 screw. When it is necessary to clean the lubricating oil residue at the bottom of the oil chamber 8, pull the pull rope 24 to separate the positioning rod 22 from the lubricating block 6 and retract it into the bottom plate 21, so that the spring 23 is compressed, and then the bottom plate 21 is dragged to separate from the lubricating block 6. Then the worker can clean the bottom plate 21 with a brush 32, and after cleaning, install and fix it in the lubricating block 6, and seal the bottom plate 21 and the lubricating block 6 through the sealing mechanism 25, thereby In order to completely clean the residue at the bottom of the oil chamber 8 as much as possible, push and pull the push rod 256 back and forth to move the pumping piston 255, thereby pumping air into the air groove 254, and pumping gas into the air bag 253 through the air pipe, so that the air bag 253 bulges, so that the push seal ring 252 is inserted into the lubricating block 6, thereby sealing between the bottom plate 21 and the lubricating block 6, and then screwing the screw 257 to make the bottom plate 21 and the push rod 256 threaded connection, fix the push rod 256, and when it is necessary to retract the seal ring 252 into the installation groove 251, the push rod 25 6 is separated from the air groove 254, so that the airbag 253 is obliquely inflated and thus deflated, and the sealing ring 252 is retracted into the mounting groove 251. By setting a one-way valve, external gas can enter the air groove 254, but vice versa. When rolling on the screw body 1, the lubricating block 6 moves, so that the grooved block 33 moves, and the brush 32 on the mounting block 31 moves, and the brush 32 contacts with the screw body 1 for cleaning. By setting a spring 2 34, the mounting block 31 is squeezed, so that the brush 32 fully contacts with the surface of the screw body 1.
[0034] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model. In the description of the utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood by specific circumstances.
Claims
1. A self-lubricating ball screw, comprising a screw body (1), characterized in that: A screw sleeve (4) is mounted on the surface of the screw body (1), a plug (5) is fixedly connected to the upper end of the screw sleeve (4), lubricating blocks (6) are fixedly connected to both ends of the screw sleeve (4), a sealing plug (7) is arranged at the upper end of the lubricating blocks (6), a cleaning assembly (3) is arranged on one side of the two lubricating blocks (6), an oil chamber (8) is provided inside the lubricating blocks (6), a cotton rope (10) is arranged on the inner wall of the oil chamber (8), a lubricating ball (9) is arranged on the side of the lubricating block (6) close to the screw body (1), and a ball (11) is arranged between the screw body (1) and the screw sleeve (4). A disassembly assembly (2) is provided at the lower end of the lubricating block (6), and the disassembly assembly (2) includes a bottom plate (21) slidably inserted at the lower end of the lubricating block (6), positioning rods (22) are slidably inserted on both sides of the bottom plate (21), and the positioning rods (22) are slidably inserted into the lubricating block (6), a spring (23) is fixedly connected between the positioning rod (22) and the bottom plate (21), a pull rope (24) is fixedly connected to the right end of the positioning rod (22), and the pull rope (24) passes through the bottom plate (21), and a sealing mechanism (25) for sealing is provided between the bottom plate (21) and the lubricating block (6).
2. A self-lubricating ball screw according to claim 1, characterized in that: The sealing mechanism (25) comprises a mounting groove (251) formed on the surface of the bottom plate (21); a sealing ring (252) is provided on the inner wall of the mounting groove (251); and the sealing ring (252) is inserted into the lubrication block (6).
3. A self-lubricating ball screw according to claim 2, characterized in that: An air bag (253) is installed on the inner wall of the installation groove (251), and the air bag (253) and the sealing ring (252) are fixed.
4. A self-lubricating ball screw according to claim 3, characterized in that: An air groove (254) is provided at the lower end of the bottom plate (21); an air pipe is fixedly connected between the air bag (253) and the air groove (254); an air pumping piston (255) is provided on the inner wall of the air groove (254); and a push rod (256) is fixedly connected to the lower end of the air pumping piston (255).
5. A self-lubricating ball screw according to claim 4, characterized in that: A screw (257) is threadedly inserted into the lower end of the push rod (256), and the screw (257) is threadedly inserted into the bottom plate (21).
6. A self-lubricating ball screw according to claim 5, characterized in that: A one-way valve is installed at the lower end of the pumping piston (255).
7. A self-lubricating ball screw according to claim 6, characterized in that: The cleaning assembly (3) comprises a grooved block (33) detachably connected to one side of the lubrication block (6); the inner wall of the grooved block (33) is slidably connected to a mounting block (31); and the right side of the mounting block (31) is fixedly connected to a brush (32).
8. A self-lubricating ball screw according to claim 7, characterized in that: A second spring (34) is fixedly connected to one side of the mounting block (31), and the other end of the second spring (34) is fixed to the grooved block (33).