CN204003443U - Screw pump ground driving device draining hole structure - Google Patents
Screw pump ground driving device draining hole structure Download PDFInfo
- Publication number
- CN204003443U CN204003443U CN201420414178.6U CN201420414178U CN204003443U CN 204003443 U CN204003443 U CN 204003443U CN 201420414178 U CN201420414178 U CN 201420414178U CN 204003443 U CN204003443 U CN 204003443U
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- China
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- hollow shaft
- sleeve pipe
- speed reducer
- draining hole
- outer ring
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Abstract
Screw pump ground driving device draining hole structure relates to a kind of improvement of screw pump ground driving device draining hole structure.The utility model provides a kind of screw pump ground driving device draining hole of hygienic environment-protecting.The utility model comprises speed reducer, speed reducer upper end is provided with packing box, in speed reducer, be provided with hollow shaft, hollow shaft upper end is positioned at packing box, hollow shaft upper end is outside equipped with mechanical seal outer ring, between mechanical seal outer ring and hollow shaft, be provided with Sealing, hollow shaft lower end is connected with the flange of speed reducer bottom, it is characterized in that: described hollow shaft is outside equipped with sleeve pipe, between sleeve pipe and hollow shaft, be provided with gap, the upper end of sleeve pipe is stretched in mechanical seal outer ring, and matches with the internal surface of mechanical seal outer ring; The lower end of sleeve pipe is connected with described flange; On the side end face of flange, be provided with described sleeve pipe and hollow shaft between the draining hole that is communicated with, gap.
Description
Technical field
The utility model relates to a kind of improvement of screw pump ground driving device draining hole structure.
Background technique
At present, in existing screw pump ground driving device by packing box to sealing between the upper end of hollow shaft and speed reducer, to avoid the crude oil in hollow shaft to enter in speed reducer, and cause screw pump ground driving device to damage; Due to the Sealing of packing box inside in the course of the work major part be all kept in motion, therefore, sealing configuration easily weares and teares, and causes seal failure.Crude oil in hollow shaft enters in speed reducer; Conventionally can on packing box, process draining hole with leakage position corresponding position, thereby the crude oil leaking is flowed out by place, draining hole; When it is found that crude oil flows out, represent that the Sealing in packing box lost efficacy.
The form in this draining hole flows directly on speed reducer, and gets off along speed reducer marginal flow after causing crude oil to be flowed out by the draining hole of packing box, causes the pollution of speed reducer, is also unfavorable for the maintenance to Sealing.
Summary of the invention
The utility model is exactly for the problems referred to above, and a kind of screw pump ground driving device draining hole of hygienic environment-protecting is provided.
For realizing above-mentioned purpose of the present utility model, the utility model adopts following technological scheme, the utility model comprises speed reducer, speed reducer upper end is provided with packing box, in speed reducer, be provided with hollow shaft, hollow shaft upper end is positioned at packing box, hollow shaft upper end is outside equipped with mechanical seal outer ring, between mechanical seal outer ring and hollow shaft, be provided with Sealing, hollow shaft lower end is connected with the flange of speed reducer bottom, it is characterized in that: described hollow shaft is outside equipped with sleeve pipe, between sleeve pipe and hollow shaft, be provided with gap, the upper end of sleeve pipe is stretched in mechanical seal outer ring, and match with the internal surface of mechanical seal outer ring, the lower end of sleeve pipe is connected with described flange, on the side end face of flange, be provided with described sleeve pipe and hollow shaft between the draining hole that is communicated with, gap.
As a kind of preferred version of the present utility model, between described sleeve pipe upper end and mechanical seal outer ring, be provided with outside framework oil seal.
The beneficial effects of the utility model: the utility model is by hollow shaft, sleeve pipe being set outward, and when seal fails, crude oil can enter in the gap between sleeve pipe and hollow shaft, and along gap, flow in the draining hole of flange; Finally by draining hole, discharged again; Because draining hole is arranged at speed reducer bottom, therefore, the crude oil of outflow can not produce and pollute speed reducer, reaches the object of hygienic environment-protecting.
In addition, the utility model, by be provided with outside framework oil seal between sleeve pipe upper end and mechanical seal outer ring, can further guarantee sealing of the present utility model, avoids crude oil to enter in speed reducer and causes the damage of screw pump ground driving device.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In accompanying drawing, 1 is that flange, 2 is that draining hole, 3 is that speed reducer, 4 is that hollow shaft, 5 is that sleeve pipe, 6 is that gap, 7 is that outside framework oil seal, 8 is that Sealing, 9 is that mechanical seal outer ring, 10 is packing box.
Embodiment
The utility model comprises speed reducer 3, speed reducer 3 upper ends are provided with packing box 10, in speed reducer 3, be provided with hollow shaft 4, hollow shaft 4 upper ends are positioned at packing box 10, hollow shaft 4 upper ends are outside equipped with mechanical seal outer ring 9, between mechanical seal outer ring 9 and hollow shaft 4, be provided with Sealing 8, hollow shaft 4 lower ends are connected with the flange 1 of speed reducer 3 bottoms, it is characterized in that: described hollow shaft 4 is outside equipped with sleeve pipe 5, between sleeve pipe 5 and hollow shaft 4, be provided with gap 6, the upper end of sleeve pipe 5 is stretched in mechanical seal outer ring 9, and matches with the internal surface of mechanical seal outer ring 9; The lower end of sleeve pipe 5 is connected with described flange 1; On the side end face of flange 1, be provided with described sleeve pipe 5 and hollow shaft 4 between the draining hole 2 that is communicated with, gap 6.
As a kind of preferred version of the present utility model, between described sleeve pipe 5 upper ends and mechanical seal outer ring 9, be provided with outside framework oil seal 7.
When the utility model is used, crude oil is by gushing out in hollow shaft 4, and is full of packing box 10; Mechanical seal outer ring 9 and Sealing 8 play seal action, guarantee that crude oil can not flow in speed reducer 3; When Sealing 8 lost efficacy, crude oil, and is flowed in the gap 6 between sleeve pipe 5 and hollow shaft 4 along hollow shaft 4 to dirty by Sealing 8 places; Owing to existing outside framework oil seal 7 between sleeve pipe 5 and hollow shaft 4, can guarantee that the crude oil leaking can not enter in speed reducer 3 yet.
The crude oil leaking continues to dirty, finally by the draining hole 2 on flange 1, discharges.
Only need place the container of accepting leakage crude oil in 2 places in draining hole, can guarantee not pollute near the environment of gearbox.
Be understandable that, above about specific descriptions of the present utility model, only for being described, the utility model is not limited to the described technological scheme of the utility model embodiment, those of ordinary skill in the art is to be understood that, still can modify or be equal to replacement the utility model, to reach identical technique effect; As long as meet, use needs, all within protection domain of the present utility model.
Claims (2)
1. screw pump ground driving device draining hole structure, comprise speed reducer (3), speed reducer (3) upper end is provided with packing box (10), in speed reducer (3), be provided with hollow shaft (4), hollow shaft (4) upper end is positioned at packing box (10), hollow shaft (4) upper end is outside equipped with mechanical seal outer ring (9), between mechanical seal outer ring (9) and hollow shaft (4), be provided with Sealing (8), the flange (1) of the same speed reducer in hollow shaft (4) lower end (3) bottom is connected, it is characterized in that: described hollow shaft (4) is outside equipped with sleeve pipe (5), between sleeve pipe (5) and hollow shaft (4), be provided with gap (6), the upper end of sleeve pipe (5) is stretched in mechanical seal outer ring (9), and match with the internal surface of mechanical seal outer ring (9), the lower end of sleeve pipe (5) is connected with described flange (1), on the side end face of flange (1), be provided with described sleeve pipe (5) and hollow shaft (4) between the draining hole (2) that is communicated with, gap (6).
2. screw pump ground driving device draining hole structure according to claim 1, is characterized in that: between described sleeve pipe (5) upper end and mechanical seal outer ring (9), be provided with outside framework oil seal (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420414178.6U CN204003443U (en) | 2014-07-25 | 2014-07-25 | Screw pump ground driving device draining hole structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420414178.6U CN204003443U (en) | 2014-07-25 | 2014-07-25 | Screw pump ground driving device draining hole structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204003443U true CN204003443U (en) | 2014-12-10 |
Family
ID=52043450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420414178.6U Active CN204003443U (en) | 2014-07-25 | 2014-07-25 | Screw pump ground driving device draining hole structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204003443U (en) |
-
2014
- 2014-07-25 CN CN201420414178.6U patent/CN204003443U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |