Oil leakage detection equipment for speed reducer
By designing an oil leakage detection device, a pressure sensor and mechanical structure are used to realize timely alarm of lubricating oil leakage and adjustment of the gearbox position, which solves the problems of lubricating oil leakage and insufficient space inside the gearbox and improves the convenience of use.
Patent Information
- Application Number
- CN202520550580.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-26
AI Technical Summary
Existing gearboxes have difficulty detecting lubricant leaks inside the protection box in a timely manner, and fixing gearboxes of different specifications may result in insufficient space in the housing, making them inconvenient to use.
A leak detection device was designed. It detects lubricating oil leakage through a pressure sensor, triggers an alarm light, and adjusts the position of the reducer through mechanical structures such as worm gear, worm wheel, and gears to adapt to various specifications of reducers.
It provides timely alarm for lubricating oil leakage and allows adjustment of the reducer position to accommodate different specifications, thus improving ease of use.
Smart Images
Figure CN223870268U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of speed reducer technology, specifically to a device for detecting oil leakage in speed reducers. Background Technology
[0002] A speed reducer is an independent component consisting of gear transmission, worm transmission, or gear-worm transmission enclosed in a rigid housing. It is commonly used as a speed reduction transmission device between the prime mover and the working machine.
[0003] Currently, when using speed reducers, protective boxes are used to protect them from external impacts. However, after prolonged use, speed reducers may experience internal lubricant leakage. Since the speed reducer is located inside the protective box, the leakage cannot be detected in time. Furthermore, because both the speed reducer and the motor are fixed inside the protective box, and different specifications of speed reducers vary in size, while the motor's output shaft position is fixed after installation, the internal space of the protective box may be insufficient. Therefore, the protective box must be customized at the factory, making its use inconvenient. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides an oil leakage detection device for speed reducers, which has the advantages of leakage alarm and applicability to various specifications of speed reducers, thus solving the problems mentioned in the background art.
[0005] This utility model provides the following technical solution: A leak detection device for a speed reducer, comprising a housing, an extension shell and a controller fixedly mounted on the outer wall of the housing, a top cover movably connected to the top of the housing, a fixing bolt threaded onto the inner wall of the top cover, a warning light fixedly mounted on the outer wall of the controller, a sliding shell slidably connected to the outer wall of the extension shell, a mounting bracket slidably connected to the inner wall of the housing, a speed reducer body fixedly mounted on the top of the mounting bracket, a movable plate slidably connected to the inner wall of the extension shell, and a rack fixedly mounted on the inner wall of the extension shell. A motor is fixedly installed on the outer wall of the housing. An extension plate is fixedly installed on the inner wall of the housing. A threaded rod is rotatably connected to the inner wall of the extension plate. A sprocket is fixedly installed at the bottom of the threaded rod. A chain is rotatably sleeved on the outer wall of the sprocket. A worm and a worm wheel are rotatably connected to the inner wall of the sliding shell. A rotating rod is rotatably connected to the inner wall of the moving plate. A gear is fixedly sleeved on the outer wall of the rotating rod. A limit post and a pressure sensor are fixedly installed on the inner wall of the housing. A spring is provided on the inner wall of the housing. A sliding plate is slidably connected to the inner wall of the housing. An extension block is fixedly installed on the outer wall of the sliding plate.
[0006] As a preferred technical solution of this utility model: the pressure sensor is electrically connected to the controller, and the controller is electrically connected to the warning light.
[0007] As a preferred technical solution of this utility model: the number of the limiting post and the extension block is two, and the two limiting posts and the extension block are symmetrically arranged, with the two limiting posts penetrating the two extension blocks.
[0008] As a preferred technical solution of this utility model: the worm is located above the worm wheel, and the worm meshes with the worm wheel, and the worm wheel is connected to the rotating rod.
[0009] As a preferred technical solution of this utility model: the gear is located above the rack, and the gear meshes with the rack.
[0010] As a preferred technical solution of this utility model: the number of the extension plate, the threaded rod and the sprocket is two, and the two extension plates, the threaded rod and the sprocket are symmetrically arranged, and the two sprockets are located on both sides of the inner wall of the chain.
[0011] Compared with the prior art, the present invention has the following beneficial effects:
[0012] 1. This oil leakage detection device for speed reducers detects oil leakage when the lubricating oil inside the speed reducer body leaks. The lubricating oil flows along the inner wall of the housing to the top of the sliding plate, increasing the weight on the top of the sliding plate and causing it to move downwards. This triggers the pressure sensor, which generates an electrical signal. The pressure sensor then sends an electrical signal to the controller, causing the controller to activate the warning light, which flashes to alert the staff.
[0013] 2. This oil leakage detection device for a speed reducer works by rotating a threaded rod, which in turn drives a sprocket to rotate. The sprocket drives a chain to rotate, which in turn drives two sprockets to rotate simultaneously. These two sprockets then drive two threaded rods to rotate. The two threaded rods, through their threaded connection with the mounting bracket, move the mounting bracket up and down, thereby adjusting the position of the speed reducer body. At this time, rotating the worm gear causes it to mesh with a worm wheel, which in turn drives the worm wheel to rotate. The worm wheel, through its connection with a rotating rod, drives the rotating rod to rotate, which in turn drives a gear to rotate. This gear, through its meshing with a rack, moves above the rack, causing the gear to move a moving plate. The moving plate then moves the motor, connecting the motor to the tail end of the speed reducer body. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0015] Figure 2 This is a schematic cross-sectional view of the present invention.
[0016] Figure 3 This is a schematic diagram of the extension plate structure of this utility model;
[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the extended shell of this utility model;
[0018] Figure 5 This utility model Figure 2 Enlarged structural diagram at point A in the middle.
[0019] In the diagram: 1. Housing; 2. Extension shell; 3. Top cover; 4. Fixing bolt; 5. Controller; 6. Warning light; 7. Mounting bracket; 8. Reducer body; 9. Moving plate; 10. Motor; 11. Rack; 12. Extension plate; 13. Threaded rod; 14. Sprocket; 15. Chain; 16. Sliding shell; 17. Worm gear; 18. Worm wheel; 19. Rotating rod; 20. Gear; 21. Limiting post; 22. Spring; 23. Sliding plate; 24. Pressure sensor; 25. Extension block. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figure 1 - Figure 5 A leak detection device for a speed reducer includes a housing 1. An extension shell 2 and a controller 5 are fixedly mounted on the outer wall of the housing 1. A top cover 3 is movably connected to the top of the housing 1. A fixing bolt 4 is threadedly connected to the inner wall of the top cover 3. A warning light 6 is fixedly mounted on the outer wall of the controller 5. A sliding shell 16 is slidably connected to the outer wall of the extension shell 2. A mounting bracket 7 is slidably connected to the inner wall of the housing 1. A speed reducer body 8 is fixedly mounted on the top of the mounting bracket 7. A movable plate 9 is slidably connected to the inner wall of the extension shell 2. A rack 11 is fixedly mounted on the inner wall of the extension shell 2. A motor 10 is fixedly mounted on the outer wall of the movable plate 9. The inner wall of the housing 1... An extension plate 12 is fixedly installed on the wall. A threaded rod 13 is rotatably connected to the inner wall of the extension plate 12. A sprocket 14 is fixedly installed at the bottom of the threaded rod 13. A chain 15 is rotatably sleeved on the outer wall of the sprocket 14. A worm gear 17 and a worm wheel 18 are rotatably connected to the inner wall of the sliding shell 16. A rotating rod 19 is rotatably connected to the inner wall of the moving plate 9. Gears 20 are fixedly sleeved on the outer wall of the rotating rod 19. A limit post 21 and a pressure sensor 24 are fixedly installed on the inner wall of the box 1. A spring 22 is provided on the inner wall of the box 1. A sliding plate 23 is slidably connected to the inner wall of the box 1. An extension block 25 is fixedly installed on the outer wall of the sliding plate 23.
[0022] In the above structure, the threaded connection between the threaded rod 13 and the mounting bracket 7 allows the mounting bracket 7 to move up and down by rotating the threaded rod 13 through the threaded connection between the threaded rod 13 and the mounting bracket 7.
[0023] In a preferred embodiment: the pressure sensor 24 is electrically connected to the controller 5, and the controller 5 is electrically connected to the warning light 6.
[0024] In the above structure, when the pressure sensor 24 is pressed, the pressure sensor 24 generates an electrical signal and sends the electrical signal to the inside of the controller 5, causing the controller 5 to control the warning light 6 to flash.
[0025] In a preferred embodiment, there are two limiting posts 21 and two extension blocks 25, and the two limiting posts 21 and the extension blocks 25 are symmetrically arranged, with the two limiting posts 21 penetrating the two extension blocks 25.
[0026] In the above structure, the extension block 25 is penetrated by two limiting posts 21, so that the two extension blocks 25 can only slide on the outer wall of the two limiting posts 21 when moving, thereby limiting the two extension blocks 25 and limiting the sliding plate 23, so that the sliding plate 23 will not tilt when moving up and down.
[0027] In a preferred embodiment, the worm 17 is located above the worm wheel 18 and meshes with the worm wheel 18, which is connected to the rotating rod 19.
[0028] In the above structure, by rotating the worm 17, the worm 17 drives the worm wheel 18 to rotate through meshing with the worm wheel 18, and the worm wheel 18 drives the rotating rod 19 to rotate through the connection with the rotating rod 19.
[0029] In a preferred embodiment, gear 20 is located above rack 11 and meshes with rack 11.
[0030] In the above structure, the rotating rod 19 drives the gear 20 to rotate, which in turn causes the gear 20 to move above the rack 11 through meshing with the rack 11, thereby causing the gear 20 to drive the moving plate 9 to move, and the moving plate 9 to drive the motor 10 to move.
[0031] In a preferred embodiment, there are two extension plates 12, threaded rods 13 and sprockets 14, and the two extension plates 12, threaded rods 13 and sprockets 14 are arranged symmetrically, with the two sprockets 14 located on both sides of the inner wall of the chain 15.
[0032] In the above structure, by rotating the threaded rod 13, the threaded rod 13 drives the sprocket 14 to rotate, the sprocket 14 drives the chain 15 to rotate, the chain 15 drives the two sprockets 14 to rotate simultaneously, and the two sprockets 14 drive the two threaded rods 13 to rotate. The two threaded rods 13 drive the mounting frame 7 to move up and down through the threaded connection with the mounting frame 7.
[0033] Working Principle: Before using this equipment, the reducer body 8 needs to be installed. By installing the reducer body 8 above the mounting bracket 7, rotating the threaded rod 13 causes the threaded rod 13 to drive the sprocket 14 to rotate, which in turn drives the chain 15 to rotate. The chain 15 then drives both sprockets 14 to rotate simultaneously, which in turn drives the two threaded rods 13 to rotate. The two threaded rods 13, through their threaded connection with the mounting bracket 7, cause the mounting bracket 7 to move up and down, thereby adjusting the position of the reducer body 8. At this time, rotating the worm gear 17 causes the worm gear 18 to rotate through its meshing with the worm wheel 18. The worm wheel 18, through its connection with the rotating rod 19, then drives the rotating rod 19 to rotate, thus... The rotating rod 19 drives the gear 20 to rotate, which in turn causes the gear 20 to move above the rack 11 through meshing with the rack 11. This causes the gear 20 to drive the moving plate 9 to move, which in turn causes the moving plate 9 to drive the motor 10 to move. This allows the motor 10 to connect to the tail of the reducer body 8. When the lubricating oil inside the reducer body 8 leaks, the lubricating oil flows along the inner wall of the housing 1 to the top of the sliding plate 23, which increases the weight on the top of the sliding plate 23. This causes the sliding plate 23 to move downward, which triggers the pressure sensor 24. At this time, the pressure sensor 24 generates an electrical signal, which in turn sends an electrical signal to the controller 5. This causes the controller 5 to activate the warning light 6, which then flashes to remind the staff.
[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A device for detecting oil leakage in a speed reducer, comprising a housing (1), characterized in that: An extension shell (2) and a controller (5) are fixedly installed on the outer wall of the housing (1). A top cover (3) is movably connected to the top of the housing (1). A fixing bolt (4) is threadedly connected to the inner wall of the top cover (3). A warning light (6) is fixedly installed on the outer wall of the controller (5). A sliding shell (16) is slidably connected to the outer wall of the extension shell (2). A mounting bracket (7) is slidably connected to the inner wall of the housing (1). A reducer body (8) is fixedly installed on the top of the mounting bracket (7). A moving plate (9) is slidably connected to the inner wall of the extension shell (2). A rack (11) is fixedly installed on the inner wall of the extension shell (2). A motor (10) is fixedly installed on the outer wall of the moving plate (9). An extension plate (11) is fixedly installed on the inner wall of the housing (1). 2) The inner wall of the extension plate (12) is rotatably connected to a threaded rod (13), and a sprocket (14) is fixedly installed at the bottom of the threaded rod (13). A chain (15) is rotatably sleeved on the outer wall of the sprocket (14). The inner wall of the sliding shell (16) is rotatably connected to a worm (17) and a worm wheel (18). The inner wall of the moving plate (9) is rotatably connected to a rotating rod (19), and a gear (20) is fixedly sleeved on the outer wall of the rotating rod (19). The inner wall of the box (1) is fixedly installed with a limit post (21) and a pressure sensor (24). The inner wall of the box (1) is provided with a spring (22). The inner wall of the box (1) is slidably connected to a sliding plate (23), and an extension block (25) is fixedly installed on the outer wall of the sliding plate (23).
2. The oil leakage detection device for a speed reducer according to claim 1, characterized in that: The pressure sensor (24) is electrically connected to the controller (5), and the controller (5) is electrically connected to the warning light (6).
3. The oil leakage detection device for a speed reducer according to claim 1, characterized in that: The number of the limiting post (21) and the extension block (25) is two, and the two limiting posts (21) and the extension blocks (25) are symmetrically arranged, with the two limiting posts (21) penetrating the two extension blocks (25).
4. The oil leakage detection device for a speed reducer according to claim 1, characterized in that: The worm (17) is located above the worm wheel (18) and the worm (17) meshes with the worm wheel (18), and the worm wheel (18) is connected to the rotating rod (19).
5. The oil leakage detection device for a speed reducer according to claim 1, characterized in that: The gear (20) is located above the rack (11) and meshes with the rack (11).
6. The oil leakage detection device for a speed reducer according to claim 1, characterized in that: The number of the extension plate (12), threaded rod (13) and sprocket (14) is two, and the two extension plates (12), threaded rods (13) and sprockets (14) are symmetrically arranged, with the two sprockets (14) located on both sides of the inner wall of the chain (15).