Double seal structure of speed reducer capable of monitoring oil leakage

Abstract

The utility model provides a kind of double sealing structure of speed reducer that can monitor oil leakage, including support sleeve, support sleeve one end is connected with speed reducer, the other end is detachably provided with annular disc, conical protruding part is placed in conical groove, under the impetus of elastic support part, conical protruding part is placed in conical groove with certain pressure, so that sealing ring always keeps outward expansion, support sleeve below is connected on liquid storage tank by conduit, liquid level monitoring device is equipped on liquid storage tank. The utility model is used, two sealing rings form double sealing structure, can carry out higher sealing to speed reducer, when lubricating oil in speed reducer leaks from sealing ring, lubricating oil will directly fall in support sleeve, and will not directly leak outside speed reducer, lubricating oil can flow into liquid storage tank along conduit and gather, and liquid level monitoring device arranged on liquid storage tank can quickly alarm prompt.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer technology, specifically a double-seal structure for a speed reducer that can monitor oil leakage. Background Technology

[0002] A speed reducer, also known as a gearbox or gearbox, is an independent component consisting of gears, worm gears, and other transmission structures enclosed in a rigid housing. Its core function is to adjust the high-speed, low-torque output of a power source (such as a motor or engine) to a low-speed, high-torque output by changing the transmission ratio, thereby meeting production requirements.

[0003] During operation, the reducer requires shaft sealing to prevent oil leakage. The sealing components are typically made of rubber or nylon. Currently, shaft seals are usually single-ring seals. Prolonged operation can lead to significant wear on these rings, resulting in poor sealing and oil leakage. Therefore, we propose a dual-seal structure for reducers that can monitor oil leakage. Utility Model Content

[0004] This invention provides a dual-seal structure for a speed reducer that can monitor oil leaks. It has the advantage of simultaneously sealing the shaft of the speed reducer with two sealing rings, thus solving the problems mentioned in the background art.

[0005] The technical solution of this utility model is implemented as follows: A double-seal structure for a speed reducer capable of monitoring oil leakage is designed, including a support sleeve. One end of the support sleeve is connected to the speed reducer, and the other end is detachably equipped with an annular disc. Two sealing rings are provided inside the support sleeve, and conical grooves are provided on the opposing surfaces of the two sealing rings. Two support rings are provided between the two sealing rings, and an elastic support part is provided between the sealing rings. Conical protrusions extending towards the conical grooves are provided on the surfaces of the two sealing rings. The conical protrusions are placed in the conical grooves. Under the push of the elastic support part, the conical protrusions are placed in the conical grooves with a certain pressure, so that the sealing rings always keep expanding outward. The lower part of the support sleeve is connected to a liquid storage tank through a conduit, and a liquid level monitoring device is provided on the liquid storage tank.

[0006] Preferably, there is a gap between the end of the tapered protrusion and the deepest part of the tapered groove.

[0007] Preferably, the elastic support is a spring coaxially disposed within the support sleeve, with both ends of the spring elastically positioned within the tapered protrusion.

[0008] Preferably, the support sleeve has a receiving groove at one end near the reducer, and the sealing ring near the reducer is placed in the receiving groove.

[0009] Preferably, a first annular seat is provided at one end of the support sleeve near the reducer, and the first annular seat is detachably connected to the reducer.

[0010] Preferably, a second annular seat is provided at the end of the support sleeve away from the reducer, and the second annular seat is detachably connected to the annular disc.

[0011] Preferably, the bottom of the support sleeve is provided with an interface, which is detachably connected to one end of the conduit.

[0012] Preferably, the liquid level monitoring device is a liquid level detector installed on the side or bottom of the liquid storage tank. The liquid level detector is mounted on the control housing, and a control board is provided inside the control housing. The control board is electrically connected to the liquid level detector.

[0013] Preferably, the control board is also electrically connected to the alarm.

[0014] Compared with the prior art, the present invention forms a double sealing structure with two sealing rings during use, which can provide a higher level of sealing for the reducer. When the lubricating oil in the reducer leaks from the sealing ring, the lubricating oil will fall directly into the support sleeve instead of leaking directly to the outside of the reducer. The lubricating oil can flow into the storage tank through the conduit and accumulate. The liquid level monitoring device installed on the storage tank can quickly provide an alarm. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model combined with a speed reducer. Figure 1 .

[0017] Figure 2 This is a schematic diagram of the structure of this utility model combined with a speed reducer. Figure 2 .

[0018] Figure 3 This is a front view of the present invention combined with a speed reducer.

[0019] Figure 4 This is a schematic diagram of the internal structure of this utility model.

[0020] Figure 5 This is a cross-sectional view of the present invention.

[0021] Figure 6 This is a schematic diagram of the explosive structure of this utility model.

[0022] In the diagram: 1. Support sleeve; 2. First annular seat; 3. Annular disc; 4. Reducer; 5. Liquid level detector; 6. Storage tank; 7. Second annular seat; 8. Spring; 9. Support ring; 10. Sealing ring; 11. Spacing; 12. Conical groove; 13. Conical protrusion; 14. Receiving groove; 15. Control housing; 16. Alarm; 17. Interface. Detailed Implementation

[0023] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Reference Figures 1 to 6 This utility model provides a technical solution: a double-seal structure for a speed reducer capable of monitoring oil leakage, including a support sleeve 1, such as... Figure 1 As shown, one end of the support sleeve 1 is connected to the reducer 4. Specifically, the support sleeve 1 is sleeved on the input shaft or the output shaft of the reducer. Taking the worm gear reducer as an example, the support sleeve 1 can be sleeved on the two shafts of the worm gear reducer respectively.

[0025] like Figure 3 As shown, two sealing rings 10 are provided inside the support sleeve 1. The outer diameter of the sealing rings 10 matches the inner diameter of the support sleeve 1. Tapered grooves 12 are provided on the opposing surfaces of the two sealing rings 10. Two support rings 9 are provided between the two sealing rings 10. An elastic support part is provided between the sealing rings 10. The elastic support part is a spring 8 coaxially arranged inside the support sleeve 1. Tapered protrusions 13 extending towards the tapered grooves 12 are provided on the surfaces of the two sealing rings 10. The two ends of the spring 8 are elastically placed inside the tapered protrusions 13. This not only allows the two ends of the spring 8 to abut against the support rings 9, but also ensures that the two ends of the spring 8 are positioned inside the tapered protrusions 13, preventing the spring 8 from shifting.

[0026] The position and size of the conical protrusion 13 correspond to the conical groove 12. Under the push of the spring 8, the conical protrusion 13 is placed in the conical groove 12. Therefore, under the push of the elastic support, the conical protrusion 13 can be placed in the conical groove 12 with a certain pressure, so that the sealing ring 10 always keeps expanding outward.

[0027] In practical application, spring 8, support ring 9 and sealing ring 10 are all coaxially sleeved on the shaft of the reducer. Since the sealing ring 10 always expands outward, the sealing ring 10 can make close contact with both the support sleeve 1 and the shaft. Moreover, the two sealing rings 10 form a double sealing structure, which can provide a higher level of sealing for the reducer.

[0028] like Figure 5 As shown, there is a gap 11 between the end of the conical protrusion 13 and the deepest part of the conical groove 12, and the upper and lower sides of the conical protrusion 13 abut against the inner wall of the conical groove 12. In this way, even if the sealing ring 10 is worn by the shaft, the conical protrusion 13 can still advance into the gap 11, thereby automatically compensating for the worn part of the sealing ring 10 and allowing the sealing ring 10 to continue to seal with the shaft.

[0029] To prevent the sealing ring 10 from popping out from the end of the support sleeve 1 away from the reducer, an annular disc 3 is detachably provided at the other end of the support sleeve 1 (i.e., the end of the support sleeve 1 away from the reducer). Specifically, a second annular seat 7 is provided at the end of the support sleeve 1 away from the reducer. The second annular seat 7 is detachably connected to the annular disc 3, i.e., the two are fastened together by bolts.

[0030] It should also be noted that a first annular seat 2 is provided on the outer end of the support sleeve 1 near the reducer. The first annular seat 2 is detachably connected to the reducer and is secured to the reducer with bolts. This not only ensures a seal between the support sleeve 1 and the reducer but also facilitates the disassembly of the support sleeve 1. A receiving groove 14 is also provided inside the support sleeve 1 near the reducer. The sealing ring 10 near the reducer is placed in the receiving groove 14. While it is possible to place the sealing ring 10 directly on the side of the reducer, placing it in the receiving groove 14 provides greater stability.

[0031] Furthermore, if lubricating oil leaks from the seal ring 10 inside the reducer, the lubricating oil will fall directly into the support sleeve 1, instead of leaking directly outside the reducer. To facilitate timely detection of oil leaks, the lower part of the support sleeve 1 is connected to the liquid storage tank 6 via a conduit. Figure 4 and Figure 5 As shown, the bottom of the support sleeve 1 is provided with an interface 17, which is detachably connected to one end of the conduit. The position of the liquid storage tank 6 is lower than the height of the support sleeve 1, so that the lubricating oil in the support sleeve 1 can flow into the liquid storage tank 6 along the conduit and accumulate.

[0032] The storage tank 6 is equipped with a liquid level monitoring device, which is a liquid level detector 5 installed on the side or bottom of the storage tank 6. The liquid level detector 5 is an ultrasonic liquid level detector and is mounted on the control housing 15. The control housing 15 contains a control board, which is electrically connected to the liquid level detector 5. The control board is directly connected to the reducer terminal via a power cable, thus supplying power to the control board. The control board is also electrically connected to an alarm 16. When the liquid level detector 5 detects the presence of liquid inside the storage tank 6, the control housing 15 will issue an alarm. The alarm 16 is an audible and visual alarm or a flashing light, and can be installed on the storage tank 6 or the reducer.

[0033] Based on the above embodiments, further optimization is possible: a support is provided on the side of the liquid storage tank 6, and the support is installed on the side of the reducer by bolts.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dual-seal structure for a speed reducer capable of monitoring oil leakage, comprising a support sleeve (1), characterized in that, One end of the support sleeve (1) is connected to the reducer, and the other end is detachably equipped with an annular disc (3). The support sleeve (1) is provided with two sealing rings (10), and the opposing surfaces of the two sealing rings (10) are provided with conical grooves (12). Two support rings (9) are provided between the two sealing rings (10), and an elastic support portion is provided between the sealing rings (10). A conical protrusion (13) extending toward the conical groove (12) is provided on the surface of the two sealing rings (10). The conical protrusion (13) is placed in the conical groove (12). Under the push of the elastic support portion, the conical protrusion (13) is placed in the conical groove (12) with a certain pressure, so that the sealing rings (10) always remain outwardly expanded; and, The support sleeve (1) is connected to the storage tank (6) via a conduit. The storage tank (6) is equipped with a liquid level monitoring device.

2. The dual-seal structure for a speed reducer capable of monitoring oil leakage as described in claim 1, characterized in that, There is a gap (11) between the end of the conical protrusion (13) and the deepest part of the conical groove (12).

3. The dual-seal structure for a speed reducer capable of monitoring oil leakage as described in claim 1, characterized in that, The elastic support part is a spring (8) coaxially arranged in the support sleeve (1), and the two ends of the spring (8) are elastically placed in the conical protrusion (13).

4. The dual-seal structure for a speed reducer capable of monitoring oil leakage as described in claim 1, characterized in that, The support sleeve (1) has a receiving groove (14) at one end near the reducer, and the sealing ring (10) near the reducer is placed in the receiving groove (14).

5. The dual-seal structure for a speed reducer capable of monitoring oil leakage as described in claim 4, characterized in that, The support sleeve (1) has a first annular seat (2) at one end near the reducer, and the first annular seat (2) is detachably connected to the reducer.

6. The dual-seal structure for a speed reducer capable of monitoring oil leakage as described in claim 5, characterized in that, A second annular seat (7) is provided at the end of the support sleeve (1) away from the reducer. The second annular seat (7) is detachably connected to the annular disc (3).

7. The dual-seal structure for a speed reducer capable of monitoring oil leakage as described in claim 1, characterized in that, The bottom of the support sleeve (1) is provided with an interface (17), which is detachably connected to one end of the conduit.

8. The dual-seal structure for a speed reducer capable of monitoring oil leakage as described in any one of claims 1-7, characterized in that, The liquid level monitoring device is a liquid level detector (5) installed on the side or bottom of the liquid storage tank (6). The liquid level detector (5) is installed on the control housing (15). The control housing (15) is equipped with a control board, which is electrically connected to the liquid level detector (5).

9. The dual-seal structure for a speed reducer capable of monitoring oil leakage as described in claim 8, characterized in that, The control board is also electrically connected to the alarm (16).

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