Waterproof device of speed reducer

Abstract

The utility model discloses a waterproof device of a speed reducer, which is characterized in that two tapered roller bearings are arranged on an output shaft, and a distance ring is arranged between the two tapered roller bearings; the bearing sleeve is mounted on the tapered roller bearing; the locking buckle is mounted on the output shaft; the oil seal sleeve is mounted on the output shaft; the two oil seals are mounted on the oil seal sleeve; the oil cup is mounted on the two oil seals; the oil collecting cover is installed outside the oil cup and fixedly installed on the shell. The oil slinger is installed on the output shaft and communicated with the oil cup through an oil pipe, and the oil cup is communicated with the locking buckle and the oil collecting cover through oil pipes. The output coupler is installed on the output shaft through a key, and part of the oil slinger extends into the output coupler. The waterproof device at the oil slinger is simple in structure, the baffle ring inserted into the output coupler is additionally arranged at the waterproof device, water is directly blocked on the external blades of the oil slinger, and contact between the water and a speed reducer can be effectively isolated.

Description

Technical Field

[0001] The utility model relates to the relevant technical fields of reducer waterproofing, and in particular to a reducer waterproofing device. Background Art

[0002] See also Figure 1 As shown, the current traditional waterproof device structure of the output shaft of the reducer, when water in the field environment flows into the cavity from the gap between the first oil collecting hood 1' and the oil sealing sleeve 2', the lower opening of the first oil collecting hood 1' is conducive to the discharge of part of the water from here, but when the water vapor in the front cavity cannot be discharged in time, it will enter the annular groove on the lower side of the oil slinger 3' and the second oil collecting hood 4'. When the water in the annular groove of the oil slinger 3' exceeds the annular groove height of the oil slinger 3', the water directly enters the bearing, which may cause water to be mixed in the bearing lubrication, which is not conducive to the use of the bearing. Utility Model Content

[0003] In view of this, in order to solve the above problems, the purpose of the utility model is to provide a reducer waterproof device, which includes:

[0004] Output shaft, tapered roller bearing, distance ring, bearing sleeve, locking buckle, oil seal sleeve, oil seal, oil cup, oil collecting cover, output coupling;

[0005] The two tapered roller bearings are mounted on the output shaft, and the distance ring is also provided between the two tapered roller bearings;

[0006] The bearing sleeve is mounted on the tapered roller bearing;

[0007] The locking buckle is mounted on the output shaft;

[0008] The oil seal sleeve is installed on the output shaft;

[0009] The two oil seals are installed on the oil seal sleeve;

[0010] The oil cup is installed on the two oil seals;

[0011] The oil collecting cover is installed on the outside of the oil cup, and the oil collecting cover is fixedly installed on the housing;

[0012] The oil slinger is installed on the output shaft, and the oil slinger is connected to the oil cup through an oil pipe, and the oil cup is connected to the locking buckle and the oil collecting cover through oil pipes respectively;

[0013] The output coupling is mounted on the output shaft through a key, and a portion of the oil slinger extends into the output coupling.

[0014] In the above-mentioned waterproof device for a reducer, a retaining ring is provided on the inner wall of the oil-slinging ring extending upward, and a mounting groove is provided at the lower end of the output coupling, and the retaining ring is inserted into the mounting groove.

[0015] In the above-mentioned waterproof device for a reducer, there is a gap between the retaining ring and the inner wall of the mounting groove.

[0016] In the above-mentioned waterproof device for a reducer, the gaps are all 1 mm.

[0017] In the above-mentioned waterproof device for a reducer, a plurality of first spacer rings are arranged between the two tapered roller bearings.

[0018] In the above-mentioned waterproof device for a reducer, a second spacer ring is provided between the tapered roller bearing close to the locking buckle and the bearing sleeve.

[0019] In the above-mentioned waterproof device for a reducer, the oil collecting cover is fixed to the outer shell by bolts.

[0020] In the above-mentioned waterproof device for a reducer, a third spacer ring is provided between the two oil seals.

[0021] In the above-mentioned waterproof device for a reducer, the locking buckle is installed on the output shaft by means of screws.

[0022] In the above-mentioned waterproof device for a reducer, a fourth spacer is provided between the locking buckle and the tapered roller bearing, and the locking buckle presses the fourth spacer.

[0023] Compared with the prior art, the above technical solution has the following positive effects:

[0024] 1. The waterproof device at the oil-slinging ring has a simple structure. A retaining ring inserted into the output coupling is added here, and the water is directly blocked on the outer blades of the oil-slinging ring, which can effectively isolate the contact between water and the reducer;

[0025] 2. The oil collecting cover adopts double oil seal design, and the oil seals are lubricated by oil cups and grease;

[0026] 3. Prevent water from mixing into the bearing during lubrication, thereby increasing the service life of the bearing and thus the service life of the reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The figure is a schematic diagram of an existing reducer output shaft waterproof device.

[0028] Figure 2 The utility model is a schematic diagram of a waterproof device for a reducer.

[0029] Figure 3 for Figure 2 Enlarged view of part A in the middle.

[0030] 1', the first oil collecting hood; 2', the oil seal; 3', the oil slinger; 4', the second oil collecting hood 4';

[0031] 1. Output shaft; 2. Housing; 3. Bearing sleeve; 4. Tapered roller bearing; 5. First spacer; 6. Oil collecting cover; 7. Bolt; 8. Washer; 9. Second spacer; 10. Oil seal sleeve; 11. Key; 12. Output coupling; 13. Oil slinger; 14. Oil seal; 15. Spacer; 16. Bolt; 17. Washer; 18. Third spacer; 19. Oil cup; 20. Lock nut; 21. Lock buckle; 22. Screw; 23. Fourth spacer; 24. Distance ring; 25. Clearance; 26. Retaining ring. DETAILED DESCRIPTION

[0032] The present invention will be further described below in conjunction with the accompanying drawings and specific implementations, but they are not intended to limit the present invention.

[0033] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the utility model, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effect that the utility model can produce and the purpose that can be achieved, should still fall within the scope of the technical content disclosed by the utility model. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the utility model. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the utility model without substantial change of the technical content.

[0034] like Figures 2 to 3 As shown, a waterproof device for a reducer of a preferred embodiment is shown, which includes: an output shaft 1, a tapered roller bearing 4, a distance ring 24, a bearing sleeve 3, a locking buckle 21, an oil seal sleeve 10, an oil seal 14, an oil cup 19, an oil collecting cover 6, and an output coupling 12.

[0035] Two tapered roller bearings 4 are mounted on the output shaft 1, and a distance ring 24 is also provided between the two tapered roller bearings 4; the bearing sleeve 3 is mounted on the tapered roller bearing 4; the locking buckle 21 is mounted on the output shaft 1; the oil seal sleeve 10 is mounted on the output shaft 1; two oil seals 14 are mounted on the oil seal sleeve 10; the oil cup 19 is mounted on the two oil seals 14; the oil collecting cover 6 is mounted on the outside of the oil cup 19, and the oil collecting cover 6 is fixedly mounted on the housing; the oil slinger 13 is mounted on the output shaft 1, and the oil slinger 13 is connected to the oil cup 19 through an oil pipe, and the oil cup 19 is connected to the locking buckle 21 and the oil collecting cover 6 through oil pipes respectively; the output coupling 12 is mounted on the output shaft 1 by a key, and part of the oil slinger 13 extends into the output coupling 12.

[0036] In actual use, when water reaches the output coupling 12 from the outside in the field environment, the water will flow along the output coupling 12 to the outer blades of the oil slinger 13. The upper end of the outer edge of the inner ring of the oil slinger 13 extends into the output coupling 12, which can directly block the water outside the reducer, effectively blocking the contact between the water and the reducer. In addition, a spacer 15 is installed on the oil cup 19 through bolts 16 and washers 17 to increase the sealing performance of the oil cup 19.

[0037] The utility model also has the following implementation methods based on the above:

[0038] Furthermore, a waterproof device for a speed reducer is provided, wherein a retaining ring 26 is provided on the inner wall of the oil slinger 13 and extends upward, and a mounting groove is provided at the lower end of the output coupling 12, and the retaining ring 26 is inserted into the mounting groove.

[0039] Furthermore, a waterproof device for a speed reducer is provided, wherein a gap 25 is provided between the retaining ring 26 and the inner wall of the mounting groove.

[0040] Further, a waterproof device for a reducer, wherein the gaps 25 are all 1 mm. Specifically, when water reaches the output coupling 12 from the outside in the field environment, the water will flow along the output coupling 12 to the outer blades of the oil slinger 13, and a retaining ring 26 inserted into the output coupling is designed on the outer edge of the inner ring of the oil slinger 13. A 1 mm gap 25 is designed between the outer side of the oil slinger 13 and the output coupling 12, a 1 mm gap 25 is designed between the inner side of the oil slinger 13 and the output coupling 12, and a 1 mm gap 25 is designed between the top of the oil slinger 13 and the output coupling 12. This design can directly block water outside the reducer, effectively blocking the contact between water and the reducer.

[0041] Further, a waterproof device for a speed reducer is provided, wherein a plurality of first spacers 5 are provided between two tapered roller bearings 4. Specifically, the first spacers are used to bear the axial loading force and prevent dust, impurities, etc. from corroding the bearings, thereby extending the bearing life.

[0042] Further, a waterproof device for a speed reducer is provided, wherein a second spacer ring 9 is provided between a tapered roller bearing 4 near a locking buckle 21 and the bearing sleeve 3. Specifically, the locking buckle 21 can prevent the output shaft 1 from deforming.

[0043] Furthermore, a waterproof device for a reducer is provided, wherein the oil collecting cover 6 is fixedly mounted on the housing by bolts. Specifically, the installation of the oil collecting cover 6 is made more stable.

[0044] Further, a waterproof device for a reducer is provided, wherein a third spacer 18 is provided between the two oil seals 14. Specifically, the third spacer 18 is used to maintain the spacing.

[0045] Further, a waterproof device for a reducer is provided, wherein the locking buckle 21 is mounted on the output shaft 1 through a screw 22. Specifically, the locking buckle 21 is fixedly mounted on the output shaft 1 through a screw 22 and a locking nut 20.

[0046] Furthermore, a waterproof device for a speed reducer is provided, wherein a fourth spacer ring 23 is provided between the locking buckle 21 and the tapered roller bearing 4 , and the locking buckle 21 presses the fourth spacer ring 23 .

[0047] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A waterproof device for a reducer, characterized in that: include: Output shaft, tapered roller bearing, distance ring, bearing sleeve, locking buckle, oil seal sleeve, oil seal, oil cup, oil collecting cover, output coupling; The two tapered roller bearings are mounted on the output shaft, and the distance ring is also provided between the two tapered roller bearings; The bearing sleeve is mounted on the tapered roller bearing; The locking buckle is mounted on the output shaft; The oil seal sleeve is installed on the output shaft; The two oil seals are installed on the oil seal sleeve; The oil cup is installed on the two oil seals; The oil collecting cover is installed on the outside of the oil cup, and the oil collecting cover is fixedly installed on the housing; An oil slinger is installed on the output shaft, and the oil slinger is connected to the oil cup through an oil pipe, and the oil cup is connected to the locking buckle and the oil collecting cover through oil pipes respectively; The output coupling is mounted on the output shaft through a key, and a portion of the oil slinger extends into the output coupling.

2. A waterproof device for a reducer according to claim 1, characterized in that: A retaining ring is provided on the inner wall of the oil slinger ring extending upward, and a mounting groove is provided at the lower end of the output coupling, and the retaining ring is inserted into the mounting groove.

3. A waterproof device for a reducer according to claim 2, characterized in that: There is a gap between the retaining ring and the inner wall of the mounting groove.

4. A waterproof device for a reducer according to claim 3, characterized in that: The gaps are all 1 mm.

5. A waterproof device for a reducer according to claim 1, characterized in that: A plurality of first spacer rings are arranged between the two tapered roller bearings.

6. A waterproof device for a reducer according to claim 1, characterized in that: A second spacer ring is provided between the tapered roller bearing close to the locking buckle and the bearing sleeve.

7. A waterproof device for a reducer according to claim 1, characterized in that: The oil collecting cover is fixedly mounted on the housing by bolts.

8. A waterproof device for a reducer according to claim 1, characterized in that: A third spacer ring is arranged between the two oil seals.

9. A waterproof device for a reducer according to claim 1, characterized in that: The locking buckle is mounted on the output shaft via screws.

10. A waterproof device for a reducer according to claim 1, characterized in that: A fourth spacer ring is provided between the locking buckle and the tapered roller bearing, and the locking buckle presses the fourth spacer ring.

Images