Screw rod part of automobile brake
By designing a lubrication box and push plate structure on the automotive brake screw, the problem of inconvenient lubricant addition is solved, enabling convenient injection and distribution of lubricant, reducing maintenance costs and equipment wear, preventing lubricant leakage, and ensuring the normal operation of the equipment.
Patent Information
- Application Number
- CN202520077913.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2035-01-13
AI Technical Summary
Adding lubricating oil to existing automotive brake screws is inconvenient, leading to insufficient lubrication, increased maintenance difficulty and cost, excessive wear and increased noise during equipment operation, and easy lubricating oil leakage during the refueling process, affecting the normal operation of the equipment.
Design a lead screw component for an automotive brake, comprising a lubrication box and a push plate structure. By pressing the push block, the push plate moves on the lubrication box, injecting lubricating oil through the contact of the lubricating bump and the soft bump, and injecting the lubricating oil into the nut through the lubrication port. The design incorporates ball bearings and a reverser to facilitate the distribution of lubricating oil and prevent the entry of foreign matter.
It enables convenient addition of lubricating oil, reduces maintenance difficulty and cost, reduces equipment wear and noise, avoids lubricating oil leakage, and ensures normal operation of the equipment.
Smart Images
Figure CN223550237U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive brake lead screws, and more particularly to an automotive brake lead screw component. Background Technology
[0002] The lead screw component of the automotive brake is used in the automotive electro-hydraulic braking system (EHB). Its main function is to transmit the electrical signal received by the system to the transmission system to drive the lead screw and nut to reciprocate. The lead screw component is made of 20CrMo material and is processed by purchasing round steel material from steel suppliers.
[0003] The inconvenience of adding lubricating oil to existing automotive brake screws may lead to insufficient lubrication, increasing maintenance difficulty and costs, causing excessive wear, reduced efficiency, and increased noise during equipment operation. Furthermore, lubricating oil leakage is prone to occur during the refueling process, causing environmental pollution and safety hazards, while also affecting the equipment's uptime.
[0004] Therefore, to address the issues of inconvenience in adding lubricating oil to existing automotive brake screws, which may lead to insufficient lubrication, increased maintenance difficulty and cost, excessive wear, reduced efficiency, and increased noise during equipment operation, and the tendency for lubricating oil leakage during the refueling process, a new automotive brake screw component can be designed with a structure that can store lubricating oil and adjust the amount added as needed. Utility Model Content
[0005] To overcome the problems of inconvenience in adding lubricating oil to existing automotive brake screws, which may lead to insufficient lubrication, increase maintenance difficulty and cost, cause excessive wear, reduced efficiency and increased noise during equipment operation, and easily cause lubricating oil leakage during the refueling process.
[0006] The technical solution of this utility model is as follows: a lead screw part for an automobile brake, including a lead screw body; and a lubrication box and a push plate. A nut is threadedly connected to the outer surface of the lead screw body. The lubrication box is fixedly connected to the upper end of the rotating shaft. The push plate is slidably connected inside the lubrication box. A push rod is fixedly connected to the upper end of the push plate. The push rod is slidably connected to the lubrication box. A push block is fixedly connected to the upper end of the push rod. Two springs are fixedly connected to the bottom of the push block. The springs are fixedly connected to the lubrication box. Multiple protrusions are fixedly connected at equal intervals at the front end of the push rod. A slot is opened at the top of the lubrication box. Soft protrusions are arranged inside the slot. A lubrication port is opened inside the nut. A lubrication port is opened inside the nut.
[0007] Preferably, pressing the push block causes the push plate to move in the lubrication box while simultaneously pressing the spring. When the push rod moves, protrusion one and soft protrusion two come into contact with each other, making it easy to know the amount injected. At the same time, the vent groove facilitates the movement of the push plate. Lubricating oil is injected into the nut from lubrication port one and lubrication port two, and then the spring pushes the push block to reset.
[0008] Preferably, the lubrication box has a threaded connection to the front end with a movable plug, and the front end of the movable plug has a cross groove.
[0009] Preferably, the outer surface of the lead screw body is movably connected with multiple balls, which are movably connected to the nut.
[0010] Preferably, a dustproof strip is fixedly connected to the rear end of the nut, and a groove is provided at the rear end of the lead screw body.
[0011] Preferably, a fixing block is fixedly connected to the front end of the lead screw body.
[0012] Preferably, the nut has two reversers inside, which are movably connected to the balls.
[0013] Preferably, the top of the lubrication box has two ventilation slots.
[0014] The beneficial effects of this utility model are:
[0015] By pressing the push block, the push plate moves within the lubrication box, simultaneously pressing the spring. When the push rod moves, protrusion one and soft protrusion two come into contact with each other, making it easy to know the amount injected. At the same time, the vent groove facilitates the movement of the push plate. Lubricating oil is injected into the nut from lubrication port one and lubrication port two. Then, the spring pushes the push block to reset, thus solving the problem that the inconvenience of adding lubricating oil to the existing automotive brake screw may lead to insufficient lubrication, increasing maintenance difficulty and cost, and causing excessive wear during equipment operation. Attached Figure Description
[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of a lead screw part for an automotive brake according to this utility model.
[0017] Figure 2 The diagram shown is a three-dimensional side sectional view of a lead screw component for an automotive brake according to this utility model.
[0018] Figure 3 The diagram shown is a three-dimensional rear cross-sectional view of a lead screw component for an automotive brake according to this utility model.
[0019] Figure 4 This invention relates to a lead screw component for an automotive brake system. Figure 2 Schematic diagram of the three-dimensional structure at point A.
[0020] Explanation of reference numerals in the attached diagram: 1. Lead screw body; 2. Nut; 4. Lubrication box; 5. Push plate; 6. Push rod; 7. Press block; 8. Spring; 9. Protrusion one; 10. Empty groove; 11. Soft protrusion two; 12. Vent groove; 13. Lubrication port one; 14. Lubrication port two; 15. Movable plug; 16. Cross groove; 17. Ball bearing; 18. Dustproof strip; 19. Groove; 20. Fixing block; 21. Reversing device. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Please see Figures 1-4 This utility model provides an embodiment: a car brake lead screw part includes a lead screw body 1; it also includes a lubrication box 4 and a push plate 5. A nut 2 is threadedly connected to the outer surface of the lead screw body 1. The lubrication box 4 is fixedly connected to the upper end of the rotating shaft 2. The push plate 5 is slidably connected inside the lubrication box 4. A push rod 6 is fixedly connected to the upper end of the push plate 5. The push rod 6 is slidably connected to the lubrication box 4. A press block 7 is fixedly connected to the upper end of the push rod 6. Two springs 8 are fixedly connected to the bottom of the press block 7. The springs 8 are fixedly connected to the lubrication box 4. The front end of the push rod 6 is fixed at equal intervals. The lubrication box 4 is connected to multiple protrusions 9. The top of the lubrication box 4 has a slot 10, and the inside of the slot 10 is provided with a soft protrusion 11. The inside of the nut 2 has a lubrication port 13 and a lubrication port 24. Pressing the button 7 moves the push plate 5 on the lubrication box 4 and presses the spring 8. When the push rod 6 moves, the protrusions 9 and the soft protrusions 11 come into contact with each other, making it easy to know the amount injected. At the same time, the vent groove 12 facilitates the movement of the push plate 5. Lubricating oil is injected into the nut 2 from the lubrication port 13 and the lubrication port 24. Then the spring 8 pushes the button 7 to reset.
[0023] Please see Figures 1-3 In this embodiment, the lubrication box 4 is threadedly connected to a movable plug 15. The movable plug 15 has a cross groove 16 at its front end. The movable plug 15 is opened by rotating it through the cross groove 16. A plurality of balls 17 are movably connected to the outer surface of the lead screw body 1. The balls 17 are movably connected to the nut 2. The balls 17 help the nut 2 move on the lead screw body 1. A dustproof strip 18 is fixedly connected to the rear end of the nut 2. A groove 19 is opened at the rear end of the lead screw body 1. The dustproof strip 18 prevents large pieces of external debris from entering.
[0024] Please see Figures 1-2 In this embodiment, a fixing block 20 is fixedly connected to the front end of the lead screw body 1, and two reversers 21 are provided inside the nut 2. The reversers 21 are movably connected to the ball 17. The reversers 21 enable the ball 17 to roll back and forth in the opposite direction. Two ventilation slots 12 are opened on the top of the lubrication box 4. The ventilation slots 12 facilitate the movement of the push plate 5.
[0025] During operation, the movable plug 15 is opened by rotating the cross groove 16 to pour lubricating oil into the lubrication box 4. When lubrication is insufficient, the push block 7 is pressed to move the push plate 5 on the lubrication box 4 and simultaneously press the spring 8. When the push rod 6 moves, the first protrusion 9 and the second soft protrusion 11 come into contact with each other, making it easy to know the amount injected. At the same time, the vent groove 12 facilitates the movement of the push plate 5. Lubricating oil is injected into the nut 2 from the lubrication port 13 and the lubrication port 24. Then the spring 8 pushes the push block 7 to reset. The ball bearing 17 can help the nut 2 move on the lead screw body 1. At the same time, the reverser 21 makes the ball bearing 17 roll back and forth in the opposite direction. The dustproof strip 18 on the nut 2 prevents large pieces of external debris from entering.
[0026] Through the above steps, pressing the button 7 moves the push plate 5 on the lubrication box 4 and simultaneously presses the spring 8. When the push rod 6 moves, the first protrusion 9 and the second soft protrusion 11 come into contact with each other, making it easy to know the amount injected. At the same time, the vent groove 12 facilitates the movement of the push plate 5. Lubricating oil is injected into the nut 2 from the first lubrication port 13 and the second lubrication port 14. Then the spring 8 pushes the button 7 to reset, which solves the problem that the existing automotive brake screw is inconvenient to add lubricating oil, which may lead to insufficient lubrication, increase maintenance difficulty and cost, and cause excessive wear during equipment operation.
Claims
1. A lead screw part for an automotive brake system, comprising a lead screw body (1); characterized in that: It also includes a lubrication box (4) and a push plate (5). The outer surface of the lead screw body (1) is threaded with a nut (2). The upper end of the rotating shaft is fixedly connected to the lubrication box (4). The inside of the lubrication box (4) is slidably connected to the push plate (5). The upper end of the push plate (5) is fixedly connected to the push rod (6). The push rod (6) is slidably connected to the lubrication box (4). The upper end of the push rod (6) is fixedly connected to the push block (7). The bottom of the push block (7) is fixedly connected to two springs (8). The springs (8) are fixedly connected to the lubrication box (4). The front end of the push rod (6) is fixedly connected to multiple protrusions (9) at equal intervals. The top of the lubrication box (4) is provided with a slot (10). The inside of the slot (10) is provided with soft protrusions (11). The inside of the nut (2) is provided with a lubrication port (13). The inside of the nut (2) is provided with a lubrication port (14).
2. The automotive brake lead screw part according to claim 1, characterized in that: The lubrication box (4) has a threaded connection to a movable plug (15) at the front end, and the movable plug (15) has a cross groove (16) at the front end.
3. The automotive brake lead screw part according to claim 1, characterized in that: Multiple balls (17) are movably connected to the outer surface of the lead screw body (1), and the balls (17) are movably connected to the nut (2).
4. The automotive brake lead screw part according to claim 1, characterized in that: The rear end of the nut (2) is fixedly connected with a dustproof strip (18), and the rear end of the lead screw body (1) is provided with a groove (19).
5. A lead screw part for an automotive brake system according to claim 1, characterized in that: A fixing block (20) is fixedly connected to the front end of the lead screw body (1).
6. A lead screw component for an automotive brake system according to claim 3, characterized in that: The nut (2) has two reversers (21) inside, which are movably connected to the ball (17).
7. A lead screw part for an automotive brake system according to claim 1, characterized in that: Two ventilation slots (12) are provided on the top of the lubrication box (4).