CN217633787U - Transmission sealing mechanism - Google Patents
Transmission sealing mechanism Download PDFInfo
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- CN217633787U CN217633787U CN202221290999.4U CN202221290999U CN217633787U CN 217633787 U CN217633787 U CN 217633787U CN 202221290999 U CN202221290999 U CN 202221290999U CN 217633787 U CN217633787 U CN 217633787U
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Abstract
The utility model provides a transmission sealing mechanism relates to equipment sealing technical field. The transmission sealing mechanism comprises a step sleeve, a first bearing, a transmission shaft, a sealing sleeve, a plugging sleeve, a second bearing and an inner spacer sleeve. The transmission sealing mechanism can realize power transmission through the matching of the stepped sleeve, the first bearing, the second bearing and the transmission shaft, and can realize static sealing and dynamic sealing under water through the matching of the stepped sleeve, the sealing sleeve, the plugging sleeve, the transmission shaft, the sealing piece and a space for injecting lubricating grease; the utility model discloses a transmission sealing mechanism, compact structure, the diameter is less, and the assembly space who occupies is less.
Description
Technical Field
The utility model belongs to the technical field of the equipment sealing technique and specifically relates to a transmission sealing mechanism is related to.
Background
When flood disasters occur, waterlogging drainage equipment is needed to drain accumulated water in a low-lying area in time so as to avoid potential safety hazards. The conventional drainage equipment (such as a traditional water pump) is adopted for drainage operation, the efficiency is low, and operators need to wade into water, and the safety is low. Along with the development of high-end equipment manufacturing industry, drainage robots have begun to appear on the market, drive the water pump body through drainage robots and remove to keep the pump body in the ponding region, drainage operating efficiency improves greatly, and the security is also higher. However, the existing drainage robot has poor tightness of a chassis transmission part, accumulated water can permeate into a machine body from the transmission part in the long-term operation process, partial devices in the machine body can be damaged due to water entering the machine body, and the drainage robot fails.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a transmission sealing mechanism to make the transmission part realize the transmission of power and seal under water.
In order to achieve the above purpose, the utility model adopts the technical proposal as follows:
a transmission sealing mechanism comprises a step sleeve, a first bearing, a transmission shaft, a sealing sleeve, a plugging sleeve, a second bearing and an inner spacer sleeve;
the inner wall of the step sleeve is provided with a first step, and the first step extends along the radial direction of the step sleeve;
the first bearing is arranged inside the step sleeve and at the outer side position of the first step, and the inner side of the outer ring of the first bearing is abutted against the side wall of the first step;
the transmission shaft is provided with a second step, the transmission shaft is positioned in the step sleeve, the transmission shaft is assembled with an inner ring of a first bearing, and the outer side of the inner ring of the first bearing is abutted against the side wall of the second step;
one end of the sealing sleeve is positioned between the step sleeve and the transmission shaft, the sealing sleeve is assembled and connected with the step sleeve, a first static sealing element is arranged between the sealing sleeve and the step sleeve, and the outer side of the outer ring of the first bearing is abutted against the end face of one end of the sealing sleeve;
a third step is arranged at one end of the sealing sleeve;
one end of the plugging sleeve is positioned between the sealing sleeve and the transmission shaft, the plugging sleeve is matched and connected with the sealing sleeve, and a dynamic sealing element is arranged among the end face of one end of the plugging sleeve, the third step and the transmission shaft;
the second bearing is arranged inside the step sleeve and at the inner side position of the first step, and the outer side of the outer ring of the second bearing is abutted against the side wall of the first step;
the inner spacer sleeve is assembled on the transmission shaft, the transmission shaft is assembled with an inner ring of a second bearing, the inner spacer sleeve is positioned between the first bearing and the second bearing, the inner side of the inner ring of the first bearing is abutted against the outer end face of the inner spacer sleeve, and the outer side of the inner ring of the second bearing is abutted against the inner end face of the inner spacer sleeve;
and a space for injecting lubricating grease is reserved between the inner spacer and the first step, and the space is connected with an oil injection channel.
Preferably, the oil injection passage is located inside the transmission shaft, one end of the oil injection passage is communicated with the space, the other end of the oil injection passage is located on the end face of the transmission shaft, and a pressure oil injection cup is arranged at the other end of the oil injection passage.
Preferably, an assembly disc is arranged on the inner side of the stepped sleeve, and a second static sealing element is arranged on the assembly disc.
Preferably, the second static seal is provided as an O-ring.
Preferably, the first static seal is provided as an O-ring.
Preferably, the dynamic seal is provided as a rotary seal ring for a shaft.
Preferably, the other end of the sealing sleeve is connected with the outer side of the stepped sleeve in an assembling mode through a screw.
Preferably, the other end of the plugging sleeve is assembled and connected with the outer side of the sealing sleeve through a screw.
Preferably, the first bearing is a double row angular contact ball bearing.
Preferably, the second bearing is a deep groove ball bearing.
The utility model has the beneficial technical effects that:
the transmission sealing mechanism of the utility model can realize the transmission of power through the matching of the ladder sleeve, the first bearing, the second bearing and the transmission shaft, and can realize the static sealing and the dynamic sealing under water through the matching of the ladder sleeve, the sealing sleeve, the plugging sleeve, the transmission shaft, the sealing element and the space for injecting lubricating grease; the utility model discloses a transmission sealing mechanism, compact structure, the diameter is less, and the assembly space who occupies is less.
Drawings
Fig. 1 is a perspective view of a transmission sealing mechanism in an embodiment of the present invention;
fig. 2 is a front view of the transmission sealing mechanism in the embodiment of the present invention;
FIG. 3 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 2;
fig. 4 is a sectional view taken along line B-B in fig. 2.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings. Certain embodiments of the present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. Indeed, various embodiments of the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements.
In the description of the present invention, it should be noted that the terms "inside", "outside", "upper", "lower", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In an embodiment of the present invention, a transmission sealing mechanism is provided, please refer to fig. 1 to 4.
A transmission sealing mechanism comprises a step sleeve 1, a first bearing 21, a transmission shaft 3, a sealing sleeve 4, a plugging sleeve 5, a second bearing 22 and an inner spacer 6.
The inner wall of the stepped sleeve 1 is provided with a first step 11, and the first step 11 extends along the radial direction of the stepped sleeve 1. The first step 11 is used for axially limiting the inner sides of the outer rings of the first bearings 21 and the outer sides of the outer rings of the second bearings 22 on two sides.
The first bearing 21 is a double row angular contact ball bearing, the first bearing 21 is disposed inside the stepped sleeve 1 at a position outside the first step 11, and the inner side of the outer ring of the first bearing 21 abuts against the side wall of the first step 11. In this way, the first step 11 axially restricts the inner side of the outer ring of the first bearing 21.
The position that is close to the outside on transmission shaft 3 is provided with second step 31, and transmission shaft 3 assembles ladder cover 1 from the outside of ladder cover 1, makes transmission shaft 3 be located the inside of ladder cover 1, and transmission shaft 3 assembles the inner circle of first bearing 21, and the inner circle outside butt of first bearing 21 is the lateral wall of second step 31. The axial stop of the inner ring of the first bearing 21 is achieved by the second step 31.
One end of the sealing sleeve 4 is positioned between the stepped sleeve 1 and the transmission shaft 3, the other end of the sealing sleeve 4 is in assembly connection with the outer side of the stepped sleeve 1 through a screw 13, a first static sealing element 71 is arranged between the sealing sleeve 4 and the stepped sleeve 1, and the outer side of the outer ring of the first bearing 21 is abutted to the end face of one end of the sealing sleeve 4. The axial limiting of the outer ring of the first bearing 21 is realized through the end face of one end of the sealing sleeve 4. The static seal between the gland 4 and the stepped sleeve 1 is achieved by a first static seal 71. The first static seal 71 is an O-ring.
One end of the sealing sleeve 4 is provided with a third step 41.
One end of the plugging sleeve 5 is positioned between the sealing sleeve 4 and the transmission shaft 3, the other end of the plugging sleeve 5 is assembled and connected with the outer side of the sealing sleeve 4 through a screw, and a dynamic sealing element 8 is arranged between the end face of one end of the plugging sleeve 5, the third step 41 and the transmission shaft 3. The end face of one end of the plugging sleeve 5 extrudes the dynamic sealing element 8 to be attached to the third step 41 (the sealing sleeve 4) and the transmission shaft 3, so that dynamic sealing between the sealing sleeve 4 and the transmission shaft 3 is realized. The dynamic seal 8 is provided as a rotary seal ring for a shaft.
The second bearing 22 is a deep groove ball bearing, the second bearing 22 is arranged inside the step sleeve 1 at the inner side position of the first step 11, and the outer side of the outer ring of the second bearing 22 abuts against the side wall of the first step 11. In this way, the first step 11 axially restricts the outer side of the outer ring of the second bearing 22.
The inner spacer 6 is assembled on the transmission shaft 3, the inner ring of the second bearing 22 is assembled on the transmission shaft 3, the inner spacer 6 is positioned between the first bearing 21 and the second bearing 22, the inner side of the inner ring of the first bearing 21 is abutted against the outer end face of the inner spacer 6, and the outer side of the inner ring of the second bearing 22 is abutted against the inner end face of the inner spacer 6. The inner sides of the inner rings of the first bearings 21 on two sides and the outer sides of the inner rings of the second bearings 22 are axially limited through the inner spacer 6.
A space 9 for injecting lubricating grease is reserved between the inner spacer 6 and the first step 11, and the space 9 is connected with an oil injection channel 91.
The oil injection channel 91 can be located inside the transmission shaft 3, one end of the oil injection channel 91 is communicated with the space 9, the other end of the oil injection channel 91 is located on the end face of the outer side of the transmission shaft 3, and the other end of the oil injection channel 91 is provided with a straight-through type pressure injection oil cup 92. In this way, grease can be injected into the space 9 by the straight-through type pressure injection oil cup 92 without detaching the respective parts.
The space 9 is filled with grease for lubricating the first bearing 21 and the second bearing 22, on the one hand, and on the other hand, when a little water penetrates to the position of the first bearing 21 in the dynamic seal position, the grease can prevent the water from continuing to penetrate to the position of the second bearing 22. When the space 9 is filled with grease, water that has permeated to the position of the first bearing 21 can be pushed out from the position of the dynamic seal by the grease.
The drive shaft 3 is fitted with the stepped sleeve 1 through the first bearing 21 and the second bearing 22, and grease is injected into the space 9 between the first bearing 21 and the second bearing 22. The transmission shaft 3 makes the stability of the rotation operation higher with two bearing cooperations to, when the transmission shaft 3 received external load, through the oil resistance of the play between the bearings and the lubricating grease in the space 9, can effectually slow down the gun of transmission shaft 3 and move the problem.
The inner side of the stepped sleeve 1 is provided with a first mounting disc 121, and the radial side of the first mounting disc 121 is provided with a second static seal 72. The first mounting plate 121 is used for mounting a mounting hole of the transmission case, and static sealing between the first mounting plate 121 and the mounting hole is realized through the second static sealing member 72. The second static seal 72 is an O-ring.
And a second assembling disc 122 is arranged on the outer side of the transmission shaft 3, and the second assembling disc 122 is used for assembling the wheel set assembly.
The driving wheel in the transmission box body is assembled on the inner side of the transmission shaft 3, and the driving wheel rotates to drive the transmission shaft 3 to rotate, so that the wheel set assembly is driven to rotate, and power transmission is achieved.
Up to this point, the present embodiment has been described in detail with reference to the accompanying drawings. From the above description, those skilled in the art should clearly recognize the transmission sealing mechanism of the present invention. The transmission sealing mechanism of the utility model can realize the transmission of power through the matching of the step sleeve 1, the first bearing 21, the second bearing 22 and the transmission shaft 3, and can realize the static sealing and the dynamic sealing under water through the matching of the step sleeve 1, the sealing sleeve 4, the plugging sleeve 5, the transmission shaft 3, the sealing elements (the first static sealing element 71, the second static sealing element 72 and the dynamic sealing element 8) and the space 9 for injecting lubricating grease; the utility model discloses a transmission sealing mechanism, compact structure, the diameter is less, and the assembly space who occupies is less.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A transmission sealing mechanism is characterized in that: the device comprises a step sleeve, a first bearing, a transmission shaft, a seal sleeve, a plugging sleeve, a second bearing and an inner spacer sleeve;
the inner wall of the step sleeve is provided with a first step, and the first step extends along the radial direction of the step sleeve;
the first bearing is arranged inside the step sleeve and at the outer side position of the first step, and the inner side of the outer ring of the first bearing is abutted against the side wall of the first step;
the transmission shaft is provided with a second step, the transmission shaft is positioned in the step sleeve, the transmission shaft is assembled with an inner ring of a first bearing, and the outer side of the inner ring of the first bearing is abutted against the side wall of the second step;
one end of the sealing sleeve is positioned between the step sleeve and the transmission shaft, the sealing sleeve is assembled and connected with the step sleeve, a first static sealing element is arranged between the sealing sleeve and the step sleeve, and the outer side of the outer ring of the first bearing is abutted against the end face of one end of the sealing sleeve;
a third step is arranged at one end of the sealing sleeve;
one end of the plugging sleeve is positioned between the sealing sleeve and the transmission shaft, the plugging sleeve is matched and connected with the sealing sleeve, and a dynamic sealing element is arranged among the end face of one end of the plugging sleeve, the third step and the transmission shaft;
the second bearing is arranged inside the step sleeve and at the inner side position of the first step, and the outer side of the outer ring of the second bearing is abutted against the side wall of the first step;
the inner spacer sleeve is assembled on the transmission shaft, the transmission shaft is assembled with an inner ring of a second bearing, the inner spacer sleeve is positioned between the first bearing and the second bearing, the inner side of the inner ring of the first bearing is abutted against the outer end face of the inner spacer sleeve, and the outer side of the inner ring of the second bearing is abutted against the inner end face of the inner spacer sleeve;
and a space for injecting lubricating grease is reserved between the inner spacer and the first step, and the space is connected with an oil injection channel.
2. The drive seal mechanism of claim 1, wherein: the oil injection passage is located inside the transmission shaft, one end of the oil injection passage is communicated with the space, the other end of the oil injection passage is located on the end face of the transmission shaft, and a pressure oil injection cup is arranged at the other end of the oil injection passage.
3. The drive seal mechanism of claim 1, wherein: an assembly disc is arranged on the inner side of the stepped sleeve, and a second static sealing element is arranged on the assembly disc.
4. A drive seal mechanism according to claim 3, wherein: the second static sealing element is an O-shaped ring.
5. The drive seal mechanism of claim 1, wherein: the first static sealing element is an O-shaped ring.
6. The drive seal mechanism of claim 1, wherein: the dynamic sealing element is a rotary sealing ring for a shaft.
7. The drive seal mechanism of claim 1, wherein: the other end of the sealing sleeve is assembled and connected with the outer side of the stepped sleeve through a screw.
8. The drive seal mechanism of claim 1, wherein: the other end of the plugging sleeve is assembled and connected with the outer side of the sealing sleeve through a screw.
9. The drive seal mechanism of claim 1, wherein: the first bearing is a double-row angular contact ball bearing.
10. The drive seal mechanism of claim 1, wherein: the second bearing is arranged as a deep groove ball bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221290999.4U CN217633787U (en) | 2022-05-26 | 2022-05-26 | Transmission sealing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221290999.4U CN217633787U (en) | 2022-05-26 | 2022-05-26 | Transmission sealing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217633787U true CN217633787U (en) | 2022-10-21 |
Family
ID=83656663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221290999.4U Active CN217633787U (en) | 2022-05-26 | 2022-05-26 | Transmission sealing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217633787U (en) |
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2022
- 2022-05-26 CN CN202221290999.4U patent/CN217633787U/en active Active
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