Leak-proof speed reducer box
By designing a fixing key, an elastic mechanism, and a squeezing mechanism in the leak-proof reducer housing, the problem of frictional heat transfer caused by oversaturation of the oil suction plates is solved, thereby improving safety and reducing the risk of fire.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU JIUSHE ROBOT TECH CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-07-03
AI Technical Summary
During operation, the oil suction plates of the existing leak-proof reducer housing become oversaturated, causing friction and generating heat, which poses a fire safety hazard.
The extrusion mechanism, consisting of a fixed key, an elastic mechanism, an oil suction mechanism, a moving column, and an inclined block, extrudes the oil suction plate through an extrusion plate to prevent the oil suction plate from becoming oversaturated and to reduce the transfer of frictional heat.
It effectively prevents the oil-absorbing plates from becoming oversaturated, reduces the transfer of frictional heat, improves safety, and reduces the risk of fire.
Smart Images

Figure CN224453623U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anti-leakage technology for speed reducers, and in particular to an anti-leakage speed reducer housing. Background Technology
[0002] Leak-proof speed reducers are designed and applied to ensure that lubricating oil does not leak, while preventing external moisture, dust, and impurities from entering the speed reducer. This not only improves the reliability and lifespan of the equipment but also reduces maintenance costs and environmental pollution.
[0003] Chinese patent CN219588075U discloses a leak-proof reducer housing. The housing has several shafts for input and output. The outer side of the housing has oil receiving grooves corresponding to the shafts, which are located below the shafts. Connecting grooves are provided between the oil receiving grooves to connect them. One of the oil receiving grooves has an oil drain hole on its side, which is fitted with a removable plug. The leaked lubricating oil is collected through the oil receiving grooves, preventing it from contaminating the base bolts. This also extends the maintenance and cleaning cycle for leaked oil and reduces maintenance costs.
[0004] However, the oversaturated oil suction plate still contains a large amount of lubricating oil. During the operation of the reducer, the rotation of the shaft may come into contact with the oversaturated oil suction plate and generate friction. The heat generated by friction is more easily transferred in the oversaturated oil suction plate, which can cause the temperature in local areas to rise, potentially causing a fire and posing a certain safety hazard. Therefore, it is urgent to improve this system. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a leak-proof reducer housing, which aims to solve the above-mentioned technical problems.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A leak-proof gearbox housing includes a support plate and a housing, and further includes:
[0008] A rotating shaft is mounted on the housing and is rotatably connected to the housing;
[0009] A fixed key is fixedly mounted on the rotating shaft;
[0010] A movable slot is provided on the fixed key;
[0011] Two elastic mechanisms are provided, symmetrically arranged on the fixed key and fixedly connected to the fixed key;
[0012] An oil suction mechanism is mounted on the elastic mechanism and is slidably connected to the fixing key and the housing.
[0013] The first movable column is fixedly mounted on the elastic mechanism and slidably connected to the fixed key;
[0014] The first inclined block is disposed on the first movable column and is fixedly connected to the first movable column;
[0015] A moving mechanism is disposed within the moving slot and slidably connected to the fixed key;
[0016] A limiting groove is provided on the fixing key;
[0017] A limiting post is fixedly mounted on the elastic mechanism and slidably connected to the fixing key;
[0018] A linkage mechanism is mounted on the fixed key and is slidably connected to the fixed key;
[0019] A lifting mechanism is disposed within the movable slot and is slidably connected to the fixed key sliding mechanism and the linkage mechanism.
[0020] An extrusion mechanism is disposed on the fixed key;
[0021] A collection trough is provided on the box body and is fixedly connected to the box body.
[0022] Preferably, the elastic mechanism includes:
[0023] Two first springs are provided, and the two first springs are disposed on the fixed key, with one end of the first spring being fixedly connected to the fixed key.
[0024] Two support blocks are provided, and the two support blocks are fixedly installed on the first movable column. The support blocks are fixedly connected to the other end of the first spring.
[0025] Preferably, the oil suction mechanism includes:
[0026] A support key is disposed on the support block and is slidably connected to the fixing key and to the housing.
[0027] An oil-absorbing sheet is disposed on the support key and is fixedly connected to the support key.
[0028] Preferably, the moving mechanism includes:
[0029] The second movable column is disposed within the fixed key and is slidably connected to the fixed key;
[0030] The second inclined block is fixedly mounted on the second movable column and is slidably connected to the first inclined block;
[0031] The third inclined block is mounted on the second movable column and is fixedly connected to the second movable column.
[0032] Preferably, the linkage mechanism includes:
[0033] The third movable column is disposed in the movable groove and is slidably connected to the fixed key;
[0034] The fourth inclined block is disposed on the third movable column, fixedly connected to the third movable column, and slidably connected to the third inclined block;
[0035] The fifth inclined block is fixedly mounted on the fourth inclined block.
[0036] Preferably, the lifting mechanism includes:
[0037] The fourth movable column is disposed in the movable groove and is slidably connected to the fixed key;
[0038] The sixth inclined block is fixedly mounted on the fourth movable column and slidably connected to the fifth inclined block;
[0039] The seventh inclined block is set on the fourth moving column and fixedly connected to the fourth moving column to prevent the fourth moving column from moving downward too far.
[0040] Preferably, the extrusion mechanism includes:
[0041] The fifth movable column is disposed on the fixed key and is slidably connected to the fixed key;
[0042] The eighth inclined block is fixedly mounted on the fifth movable column and slidably connected to the seventh inclined block;
[0043] An extrusion plate is disposed on the fifth movable column and is fixedly connected to the fifth movable column;
[0044] A second spring is disposed on the extrusion plate, one end of the second spring is fixedly connected to the extrusion plate, and the other end of the second spring is fixedly connected to the fixing key.
[0045] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0046] The movement of the extrusion plate is achieved through the cooperation of the fixed key, elastic mechanism, oil suction mechanism, first moving column, first inclined block, moving mechanism, linkage mechanism, lifting mechanism and extrusion mechanism, which extrudes the oil suction plate to prevent the oil suction plate from becoming oversaturated, making it difficult for the heat generated by friction to be transferred in the oil suction plate, reducing the risk of fire and improving the safety factor. Attached Figure Description
[0047] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0048] Figure 1 A three-dimensional structural schematic diagram of a leak-proof gearbox housing is shown.
[0049] Figure 2 A partial three-dimensional structural diagram of a leak-proof reducer housing is shown.
[0050] Figure 3 It shows Figure 2 Side view.
[0051] Figure 4 It shows Figure 3 Cross-sectional view of AA.
[0052] Figure 5 The diagram shows the structure of the elastic mechanism, the oil suction mechanism, the first moving column, the first inclined block, the moving mechanism, the linkage mechanism, the lifting mechanism, the limiting column, and the extrusion mechanism.
[0053] Legend:
[0054] 1. Support plate; 2. Box body; 3. Rotating shaft; 4. Fixing key; 5. Moving groove; 6. First moving column; 7. First inclined block; 8. Limiting groove; 9. Limiting column; 10. Collection groove; 11. First spring; 12. Support block; 13. Supporting key; 14. Oil suction plate; 15. Second moving column; 16. Second inclined block; 17. Third inclined block; 18. Third moving column; 19. Fourth inclined block; 20. Fifth inclined block; 21. Fourth moving column; 22. Sixth inclined block; 23. Seventh inclined block; 24. Fifth moving column; 25. Eighth inclined block; 26. Extrusion plate; 27. Second spring. Detailed Implementation
[0055] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0056] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0057] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.
[0058] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0059] Reference Figures 1 to 5 The following is a further description of an embodiment of the leak-proof reducer housing of this utility model.
[0060] A leak-proof gearbox housing includes a support plate 1 and a housing 2, and further includes:
[0061] A rotating shaft 3 is mounted on the housing 2 and is rotatably connected to the housing 2.
[0062] Fixed key 4 is fixedly set on the rotating shaft 3; used to limit and fix the positions of elastic mechanism, oil suction mechanism, first moving column 6, first inclined block 7, moving mechanism, linkage mechanism, lifting mechanism, limiting groove 8, limiting column 9, moving groove 5 and extrusion mechanism;
[0063] The movable slot 5 is disposed on the fixed key 4; it is used to provide space for the movement of the first movable column 6, the second movable column 15, the third movable column 18, the fourth movable column 21 and the fifth movable column 24, and to restrict the movement position of the first movable column 6, the second movable column 15, the third movable column 18, the fourth movable column 21 and the fifth movable column 24.
[0064] Reference Figures 2 to 5 In a preferred embodiment, two elastic mechanisms are provided, symmetrically arranged on the fixed key 4 and fixedly connected to the fixed key 4; the elastic mechanism includes:
[0065] Two first springs 11 are provided, and the two first springs 11 are disposed on the fixed key 4, with one end of the first spring 11 being fixedly connected to the fixed key 4.
[0066] There are two support blocks 12, which are fixedly mounted on the first movable column 6. The support blocks 12 are fixedly connected to the other end of the first spring 11.
[0067] During operation, the oil-absorbing plate 14 becomes heavier after absorbing the leaked lubricating oil. Under the action of gravity, it drives the support key 13 to move downward. The support key 13 drives the support block 12 to move downward. The support block 12 and the fixing key 4 work together to compress the first spring 11. The support block 12 is also used to transmit kinetic energy to drive the first moving column 6 to move downward. The first spring 11 provides support and limits for the support block 12.
[0068] Reference Figures 1 to 4 In a preferred embodiment, the oil-absorbing mechanism is disposed on the elastic mechanism, slidably connected to the fixing key 4, and slidably connected to the housing 2; the oil-absorbing mechanism includes:
[0069] Support key 13 is disposed on the support block 12 and is slidably connected to the fixing key 4 and the housing 2; it is used to cooperate with the housing 2 and the fixing key 4 to limit the oil absorption plate 14.
[0070] Oil-absorbing sheet 14 is disposed on the support key 13 and is fixedly connected to the support key 13.
[0071] The first movable column 6 is fixedly mounted on the elastic mechanism and slidably connected to the fixed key 4; it is used to transmit kinetic energy to drive the first inclined block 7 to move downward.
[0072] The first inclined block 7 is disposed on the first moving column 6 and is fixedly connected to the first moving column 6; it is used to transmit kinetic energy to drive the third inclined block 17 to move, thereby driving the moving mechanism to move.
[0073] Reference Figure 5 In a preferred embodiment, the moving mechanism is disposed within the moving groove 5 and slidably connected to the fixing key 4; the moving mechanism includes:
[0074] The second movable column 15 is disposed inside the fixed key 4 and is slidably connected to the fixed key 4;
[0075] The second inclined block 16 is fixedly mounted on the second movable column 15 and is slidably connected to the first inclined block 7.
[0076] The third inclined block 17 is disposed on the second movable column 15 and is fixedly connected to the second movable column 15.
[0077] During operation, the first inclined block 7 drives the second inclined block 16 to move. The second inclined block 16 is used to transmit kinetic energy to drive the second moving column 15 to move. The second moving column 15 transmits kinetic energy to drive the third inclined block 17 to move. The third moving block is used to transmit kinetic energy to drive the fourth inclined block 19 to move, thereby driving the linkage mechanism to move.
[0078] A limiting groove 8 is provided on the fixing key 4;
[0079] The limiting post 9 is fixedly mounted on the elastic mechanism and slidably connected to the fixing key 4; it plays a protective role for the first spring 11.
[0080] Reference Figure 5 In a preferred embodiment, a linkage mechanism is disposed on the fixed key 4 and slidably connected to the fixed key 4; the linkage mechanism includes:
[0081] The third movable column 18 is disposed in the movable groove 5 and is slidably connected to the fixed key 4;
[0082] The fourth inclined block 19 is disposed on the third moving column 18, fixedly connected to the third moving column 18, and slidably connected to the third inclined block 17;
[0083] The fifth inclined block 20 is fixedly mounted on the fourth inclined block 19.
[0084] During operation, the third inclined block 17 drives the fourth inclined block 19 to move. The fourth inclined block 19 is used to transmit kinetic energy to drive the third moving column 18 to move. The third moving column 18 is used to transmit kinetic energy to drive the fifth inclined block 20 to move. The fifth inclined block 20 is used to transmit kinetic energy to drive the sixth inclined block 22 to rise, thereby driving the lifting mechanism to rise.
[0085] Reference Figure 5 In a preferred embodiment, the lifting mechanism is disposed within the moving slot 5 and slides with the fixed key 4; it is also slidably connected to the linkage mechanism; the lifting mechanism includes:
[0086] The fourth movable column 21 is disposed in the movable groove 5 and is slidably connected to the fixed key 4;
[0087] The sixth inclined block 22 is fixedly mounted on the fourth movable column 21 and slidably connected to the fifth inclined block 20;
[0088] The seventh inclined block 23 is disposed on the fourth moving column 21 and is fixedly connected to the fourth moving column 21 to prevent the fourth moving column 21 from moving downward too far.
[0089] During operation, the fifth inclined block 20 drives the sixth inclined block 22 to rise, the sixth inclined block 22 transmits kinetic energy to drive the fourth moving column 21 to rise, the fourth moving column 21 drives the seventh inclined block 23 to rise, the seventh inclined block 23 is used to transmit kinetic energy to drive the eighth inclined block 25 to move, thereby driving the extrusion mechanism to move.
[0090] Reference Figure 5 In a preferred embodiment, a pressing mechanism is disposed on the fixed key 4; the pressing mechanism includes:
[0091] The fifth movable column 24 is disposed on the fixed key 4 and is slidably connected to the fixed key 4;
[0092] The eighth inclined block 25 is fixedly mounted on the fifth movable column 24 and slidably connected to the seventh inclined block 23;
[0093] The extrusion plate 26 is disposed on the fifth moving column 24 and is fixedly connected to the fifth moving column 24;
[0094] The second spring 27 is disposed on the extrusion plate 26. One end of the second spring 27 is fixedly connected to the extrusion plate 26, and the other end of the second spring 27 is fixedly connected to the fixing key 4.
[0095] During operation, the seventh inclined block 23 drives the eighth inclined block 25 to move, the eighth inclined block 25 transmits kinetic energy to drive the fifth moving column 24 to move, and the fifth moving column 24 drives the extrusion plate 26 to move toward the oil suction plate 14. The extrusion plate 26 is used to extrude the oil suction plate 14 and squeeze out the lubricating oil absorbed in the oil suction plate 14. The pressure plate and the fixing key 4 work together to stretch the second spring 27. When the weight of the oil suction plate 14 decreases, the second spring 27 releases elastic potential energy to drive the extrusion plate 26 to move.
[0096] A collection trough 10 is disposed on the housing 2 and fixedly connected to the housing 2. It is used to collect lubricating oil.
[0097] Working principle: After absorbing the leaked lubricating oil, the oil-absorbing plate 14 becomes heavier. Under the action of gravity, it drives the support key 13 to move downward. The support key 13 drives the support block 12 to move downward. The support block 12 and the fixing key 4 compress the first spring 11. The support block 12 drives the first moving column 6 to move downward. The first moving column 6 drives the first inclined block 7 to move downward. The first inclined block 7 drives the second inclined block 16 to move. The second inclined block 16 drives the second moving column 15 to move. The second moving column 15 drives the third inclined block 17 to move. The third inclined block 17 drives the fourth inclined block 19 to move. The fourth inclined block 19 drives the third moving column 18 to move. The third moving column 18... The fifth inclined block 20 moves, the fifth inclined block 20 moves the sixth inclined block 22, the sixth inclined block 22 moves the fourth moving column 21, the fourth moving column 21 moves the seventh inclined block 23, the seventh inclined block 23 moves the eighth inclined block 25, the eighth inclined block 25 moves the fifth moving column 24, the fifth moving column 24 moves the extrusion plate 26 to extrude oil suction plate 14, the extrusion plate 26 and the fixing key 4 work together to stretch the second spring 27; when the weight of oil suction plate 14 decreases, the first spring 11 releases elastic potential energy to move the support block 12 upward, the second spring 27 releases elastic potential energy to move the extrusion plate 26 away from oil suction plate 14.
[0098] The above description of the embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A leak-proof speed reducer case body comprising a support plate (1) and a case (2), characterized in that, Also includes: A rotating shaft (3) is mounted on the housing (2) and is rotatably connected to the housing (2); A fixed key (4) is fixedly mounted on the rotating shaft (3); The movable slot (5) is disposed on the fixed key (4); Two elastic mechanisms are provided, which are symmetrically arranged on the fixed key (4) and fixedly connected to the fixed key (4); An oil suction mechanism is mounted on the elastic mechanism and is slidably connected to the fixed key (4) and the housing (2); The first movable column (6) is fixedly mounted on the elastic mechanism and is slidably connected to the fixed key (4); The first inclined block (7) is disposed on the first movable column (6) and is fixedly connected to the first movable column (6); The moving mechanism is disposed in the moving groove (5) and is slidably connected to the fixed key (4); A limiting groove (8) is provided on the fixing key (4); The limiting post (9) is fixedly set on the elastic mechanism and is slidably connected to the fixing key (4); The linkage mechanism is mounted on the fixed key (4) and is slidably connected to the fixed key (4); The lifting mechanism is located in the moving slot (5) and slides with the fixed key (4); it is also slidably connected with the linkage mechanism. The extrusion mechanism is disposed on the fixed key (4); A collection trough (10) is provided on the box body (2) and is fixedly connected to the box body (2).
2. The leak-proof reducer housing according to claim 1, characterized in that, The elastic mechanism includes: Two first springs (11) are provided, and the two first springs (11) are disposed on the fixed key (4). One end of the first spring (11) is fixedly connected to the fixed key (4). There are two support blocks (12), which are fixedly mounted on the first movable column (6). The support blocks (12) are fixedly connected to the other end of the first spring (11).
3. A containment gearbox housing according to claim 2, wherein, The oil suction mechanism includes: The support key (13) is set on the support block (12), and is slidably connected to the fixing key (4) and the housing (2); An oil-absorbing sheet (14) is disposed on the support key (13) and is fixedly connected to the support key (13).
4. A containment gearbox housing according to claim 3, wherein, The mobile mechanism includes: The second movable column (15) is disposed inside the fixed key (4) and is slidably connected to the fixed key (4); The second inclined block (16) is fixedly mounted on the second movable column (15) and is slidably connected to the first inclined block (7); The third inclined block (17) is disposed on the second movable column (15) and is fixedly connected to the second movable column (15).
5. A containment gearbox housing according to claim 4, wherein, The linkage mechanism includes: The third movable column (18) is disposed in the movable groove (5) and is slidably connected to the fixed key (4); The fourth inclined block (19) is disposed on the third moving column (18), fixedly connected to the third moving column (18), and slidably connected to the third inclined block (17); The fifth inclined block (20) is fixedly mounted on the fourth inclined block (19).
6. A containment gearbox housing according to claim 5, wherein, The lifting mechanism includes: The fourth movable column (21) is disposed in the movable groove (5) and is slidably connected to the fixed key (4); The sixth inclined block (22) is fixedly mounted on the fourth movable column (21) and slidably connected to the fifth inclined block (20); The seventh inclined block (23) is set on the fourth moving column (21) and fixedly connected to the fourth moving column (21) to prevent the fourth moving column (21) from moving downward too far.
7. A containment gearbox housing according to claim 6, wherein, The extrusion mechanism includes: The fifth movable column (24) is disposed on the fixed key (4) and is slidably connected to the fixed key (4); The eighth inclined block (25) is fixedly mounted on the fifth movable column (24) and slidably connected to the seventh inclined block (23); An extrusion plate (26) is disposed on the fifth movable column (24) and is fixedly connected to the fifth movable column (24); The second spring (27) is disposed on the extrusion plate (26). One end of the second spring (27) is fixedly connected to the extrusion plate (26), and the other end of the second spring (27) is fixedly connected to the fixing key (4).