CN204458247U - Speed reducer vacuum pumping device - Google Patents
Speed reducer vacuum pumping device Download PDFInfo
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- CN204458247U CN204458247U CN201420854866.4U CN201420854866U CN204458247U CN 204458247 U CN204458247 U CN 204458247U CN 201420854866 U CN201420854866 U CN 201420854866U CN 204458247 U CN204458247 U CN 204458247U
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- bull stick
- vacuum tube
- speed reducer
- vacuum
- pumping device
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Abstract
The utility model provides a kind of speed reducer vacuum pumping device, belongs to field of mechanical technique.It solve existing vacuum pumping device and can not be used for the problem that speed reducer vacuumizes.This speed reducer vacuum pumping device comprises tubular vacuum tube, vacuum tube is axially equipped with the bull stick that can move axially along vacuum tube, the lower end of bull stick has the positioning part of delivery plug location, vacuum tube is stretched out in the upper end of bull stick, the lower end of vacuum tube has the connecting end for connecting oil nozzle, sealing configuration is provided with between the upper end of vacuum tube and bull stick, have air flue between the inwall of vacuum tube and bull stick outer wall and the sidepiece of vacuum tube is connected with the tracheae be connected with air flue, the other end of pipe is connected with vacuum pump.The utility model has the advantages such as simple, the easy to operate and vacuumizing effect of structure is good.
Description
Technical field
The utility model belongs to field of mechanical technique, relates to a kind of vacuum pumping device, particularly a kind of speed reducer vacuum pumping device.
Background technique
The individual components that speed reducer is a kind of gear transmission by being enclosed in stiff case, worm drive, pinion-endless screw transmission form, be commonly used for the speed reduction gearing between driving link and workpiece, between prime mover and working machine or actuator, play coupling rotating speed and transmitting torque, apply very extensive in modern mechanical.Single-stage and multi-stage speed-reducing machine can be divided into according to transmission progression difference; Cylindrical gear reducer, conical gear reducer and circular cone-cylindrical gears running wheel speed reducer can be divided into according to gear shape; Expansion, flow deviding type can be divided into again according to the setting type of transmission and enter shaft type speed reducer together.
Above-mentioned various speed reducer in use, in order to avoid wheel tooth odontotripsis, capital adds lubricant oil by the tank filler sleeve that box body of speed reducer offers to box house, to increase the lubrication effect between inner body, increase the service life, but after speed reducer runs a period of time, inside easily generates heat, lubricant oil is expanded, chemical reaction occurs, cause inner produce pressure and leakage of oil.
Have in the market and sell some vaccum-pumping equipments, some has also applied for patent, and such as Chinese patent literature data discloses a kind of vacuum pumping device [application number: 200920158159.0, Authorization Notice No.: CN201428598Y], comprise actuator, vacuum pump, supporting outer, air exhaust nozzle, coupling and planetary gear reducing mechanism, actuator and supporting outer link into an integrated entity, vacuum pump is arranged on supporting outer inside, air exhaust nozzle spiral-lock is on the lower end surface of supporting outer, actuator is provided with an output shaft along its longitudinal central axis line, the lower end surface of this output shaft is provided with cross recess vertically, the upper end of coupling is assemblied in cross recess, the lower end of coupling is connected with the input shaft of planetary gear reducing mechanism, the output shaft of planetary gear reducing mechanism is connected with the input shaft of vacuum pump.The volume of this vacuum pumping device is little, but complex structure, manufacture cost is high, air exhaust nozzle need be inserted in the tank filler sleeve of speed reducer when vacuumizing and bleed, after vacuumizing, air exhaust nozzle is detached tank filler sleeve, even if very fast, plug cock is threaded with tank filler sleeve, still have air and enter in box body of speed reducer from tank filler sleeve, in box body of speed reducer, degree of vacuum is bad, and speed reducer in use still exists the excessive phenomenon causing leakage of oil of internal pressure.
Chinese patent literature data also discloses a kind of air exhauster [application number: 200920061523.1; Authorization Notice No.: CN201448216U], comprise shell, air exhaust nozzle is equipped with in one end of shell, shell is built with pump bowl, the suction port of pump bowl is identical with air exhaust nozzle, and shell, built with motor, the motor shaft of motor is connected with rotating disk, the tail end of the piston rod of pump bowl departs from electrical axis and is hinged on rotating disk, and shell is built with the power supply unit be electrically connected with motor.This air exhauster is small and exquisite, and it is comparatively convenient to use, but also deposits the problem not easily carrying out after evacuation sealing on speed reducer.
Summary of the invention
The purpose of this utility model is for the above-mentioned problems in the prior art, provides simple, the easy to operate and speed reducer vacuum pumping device making degree of vacuum good of a kind of structure.
The purpose of this utility model realizes by following technical proposal: a kind of speed reducer vacuum pumping device, described speed reducer comprises casing, described casing is provided with and protrudes from casing and the oil nozzle be connected with box house, described oil nozzle has been threaded plug cock, it is characterized in that, this vacuum pumping device comprises tubular vacuum tube, described vacuum tube is axially equipped with the bull stick that can move axially along vacuum tube, the lower end of described bull stick has the positioning part of delivery plug location, vacuum tube is stretched out in the upper end of bull stick, the lower end of described vacuum tube has the connecting end for connecting oil nozzle, sealing configuration is provided with between the upper end of vacuum tube and bull stick, between the inwall of described vacuum tube and bull stick outer wall, there is air flue and the sidepiece of vacuum tube is connected with the tracheae be connected with air flue, the other end of described tracheae is connected with vacuum pump.
When this speed reducer uses with vacuum pumping device, the connecting end of vacuum tube lower end is connected with oil nozzle, plug cock is located by the positioning part of bull stick lower end, rotate bull stick afterwards, bull stick drives plug cock to depart from oil nozzle, then bull stick is made to move to vacuum tube top axial, oil nozzle is connected with air flue, vacuum pump works, air in casing enters tracheae from oil nozzle through air flue, such vacuum pump extracts air in casing, complete after vacuumizing, bull stick is moved axially to vacuum tube lower end, rotating bull stick afterwards makes the positioning part of bull stick lower end drive plug cock to be threaded with oil nozzle, air flue is not communicated with oil nozzle, then vacuum tube is taken off, complete vacuumizing of casing, easy to operate, bull stick rotates and moves axially sealing mechanism in process and ensure that sealing between bull stick and vacuum tube, vacuumize rear plug cock and oil nozzle easy to connect, air can not be made to enter in casing, in casing, degree of vacuum is good, casing is in negative pressure state all the time, greatly reduce speed reducer original because run a period of time, box house heating makes lubricant oil expand, produce chemical reaction, box house is caused to produce pressure and leak oil condition, speed reducer can normally be worked for a long time, long service life.
In above-mentioned speed reducer vacuum pumping device, described sealing configuration comprises the flange that vacuum tube upper end has fold inward, and the interior edge of described flange is tightly contacted bull stick, and described flange is fixed with the seal ring between flange and bull stick.Seal ring ensure that the sealing between flange and bull stick, also avoids dust to enter between flange and bull stick, avoids wearing and tearing, extends working life.
As another kind of situation, in above-mentioned speed reducer vacuum pumping device, described sealing configuration comprises the flange that vacuum tube upper end has fold inward, and described flange is threaded with bull stick.
In above-mentioned speed reducer vacuum pumping device, described tracheae is connected with pressure regulator valve.Can accurately control casing internal air pressure by pressure regulator valve, ensure, in casing, there is enough degree of vacuum.
In above-mentioned speed reducer vacuum pumping device, described connecting end is that rubber is made and tubular rubber base.Rubber base has elasticity, can be good at being buckled on oil nozzle, good airproof performance.
In above-mentioned speed reducer vacuum pumping device, described positioning part is the projection protruding from bull stick lower end.Projection can embed plug cock, thus makes bull stick plug cock can be driven to be elevated, rotate.
In above-mentioned speed reducer vacuum pumping device, described bull stick upper end has the scrap (bridge) of outwards turnover, and the top of described bull stick offers the rotating hole of hexagonal configuration.Scrap (bridge) avoids bull stick to come off from vacuum tube, and can gripping scrap (bridge), that bull stick is moved axially is convenient and swift, insert rotating hole and conveniently can drive bar rotation, thus it is fastening that plug cock is threaded with oil nozzle by hexagonal bull stick.
Compared with prior art, this speed reducer is simple and compact for structure with vacuum pumping device, conveniently can be extracted out by air in box body of speed reducer, and ensure that in box body of speed reducer, degree of vacuum is good, thus reduces the increase of box body of speed reducer internal pressure and leak oil condition.
Accompanying drawing explanation
Fig. 1 is the using state figure of this speed reducer vacuum pumping device.
Fig. 2 is the use cross-sectional schematic of this speed reducer vacuum pumping device.
In figure, 1, casing; 2, oil nozzle; 3, plug cock; 4, vacuum tube; 4a, connecting end; 4b, flange; 5, bull stick; 5a, positioning part; 5b, scrap (bridge); 5c, rotating hole; 6, air flue; 7, tracheae; 8, vacuum pump; 9, seal ring; 10, pressure regulator valve.
Embodiment
Be below specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As depicted in figs. 1 and 2, speed reducer comprises casing 1, casing 1 is provided with and protrudes from casing 1 and the oil nozzle 2 be connected with casing 1 inside, oil nozzle 2 has been threaded plug cock 3, this speed reducer vacuum pumping device comprises tubular vacuum tube 4, vacuum tube 4 is axially equipped with the bull stick 5 that can move axially along vacuum tube 4, the lower end of bull stick 5 has the positioning part 5a of delivery plug 3 location, vacuum tube 4 is stretched out in the upper end of bull stick 5, the lower end of vacuum tube 4 has the connecting end 4a for connecting oil nozzle 2, sealing configuration is provided with between the upper end of vacuum tube 4 and bull stick 5, between the inwall of vacuum tube 4 and bull stick 5 outer wall, there is air flue 6 and the sidepiece of vacuum tube 4 is connected with the tracheae 7 be connected with air flue 6, the other end of tracheae 7 is connected with vacuum pump 8.
Describe in detail further, in the present embodiment, sealing configuration comprises the flange 4b that vacuum tube 4 upper end has fold inward, and the interior edge of flange 4b is tightly contacted bull stick 5, and flange 4b is fixed with the seal ring 9 between flange 4b and bull stick 5; In order to accurately control casing 1 internal air pressure, ensure to have enough degree of vacuum in casing 1, tracheae 7 is connected with pressure regulator valve 10; In order to make connecting end 4a and the easy to connect and good sealing effect of oil nozzle 2, connecting end 4a is that rubber is made and tubular rubber base; Conveniently plug cock 3 is located, and the positioning part 5a of bull stick 5 lower end is the projection protruding from bull stick 5 lower end; Conveniently bull stick 5 rotates, moves, and bull stick 5 upper end has the scrap (bridge) 5b of outwards turnover, and the top of bull stick 5 offers the rotating hole 5c of hexagonal configuration.
When this speed reducer uses with vacuum pumping device, the connecting end 4a of vacuum tube 4 lower end is connected with oil nozzle 2, plug cock 3 is located by the positioning part 5a of bull stick 5 lower end, rotate bull stick 5 afterwards, bull stick 5 drives plug cock 3 to depart from oil nozzle 2, then gripping scrap (bridge) 5b makes bull stick 5 move to vacuum tube 4 top axial, oil nozzle 2 is connected with air flue 6, vacuum pump 8 works, air in casing 1 enters tracheae 7 from oil nozzle 2 through air flue 6, such vacuum pump 8 extracts air in casing 1, observation pressure regulator valve 10, after casing 1 inside arrives enough degree of vacuum, vacuum pump 8 quits work, complete after vacuumizing, bull stick 5 is moved axially to vacuum tube 4 lower end, rotating bull stick 5 afterwards makes the positioning part 5a of bull stick 5 lower end drive plug cock 3 to be threaded with oil nozzle 2, air flue 6 is not communicated with oil nozzle 2, then vacuum tube 4 is taken off, complete vacuumizing of casing 1, easy to operate, vacuumize rear plug cock 3 and oil nozzle 2 easy to connect, air can not be made to enter in casing 1, in casing 1, degree of vacuum is good, casing 1 is in negative pressure state all the time, greatly reduce speed reducer original because run a period of time, casing 1 inner heat makes lubricant oil expand, produce chemical reaction, casing 1 inside is caused to produce pressure and leak oil condition, speed reducer can normally be worked for a long time, long service life.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various amendment or supplements or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present utility model or surmount the scope that appended claims defines.
Although more employ the terms such as casing 1, oil nozzle 2, plug cock 3, vacuum tube 4, connecting end 4a, flange 4b, bull stick 5, positioning part 5a, scrap (bridge) 5b, rotating hole 5c, air flue 6, tracheae 7, vacuum pump 8, seal ring 9, pressure regulator valve 10 herein, do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present utility model more easily; The restriction that they are construed to any one additional is all contrary with the utility model spirit.
Claims (7)
1. a speed reducer vacuum pumping device, described speed reducer comprises casing (1), described casing (1) is provided with and protrudes from casing (1) and the oil nozzle (2) be connected with casing (1) inside, described oil nozzle (2) has been threaded plug cock (3), it is characterized in that, this vacuum pumping device comprises tubular vacuum tube (4), described vacuum tube (4) is axially equipped with the bull stick (5) that can move axially along vacuum tube (4), the lower end of described bull stick (5) has the positioning part (5a) that delivery plug (3) is located, vacuum tube (4) is stretched out in the upper end of bull stick (5), the lower end of described vacuum tube (4) has the connecting end (4a) for connecting oil nozzle (2), sealing configuration is provided with between the upper end of vacuum tube (4) and bull stick (5), between the inwall of described vacuum tube (4) and bull stick (5) outer wall, there is air flue (6) and the sidepiece of vacuum tube (4) is connected with the tracheae (7) be connected with air flue (6), the other end of described tracheae (7) is connected with vacuum pump (8).
2. speed reducer vacuum pumping device according to claim 1, it is characterized in that, described sealing configuration comprises the flange (4b) that vacuum tube (4) upper end has fold inward, the interior edge of described flange (4b) is tightly contacted bull stick (5), and described flange (4b) is fixed with the seal ring (9) be positioned between flange (4b) and bull stick (5).
3. speed reducer vacuum pumping device according to claim 1, is characterized in that, described sealing configuration comprises the flange (4b) that vacuum tube (4) upper end has fold inward, and described flange (4b) is threaded with bull stick (5).
4. the speed reducer vacuum pumping device according to claim 1 or 2 or 3, is characterized in that, described tracheae (7) is connected with pressure regulator valve (10).
5. the speed reducer vacuum pumping device according to claim 1 or 2 or 3, is characterized in that, described connecting end (4a) for rubber make and tubular rubber base.
6. the speed reducer vacuum pumping device according to claim 1 or 2 or 3, is characterized in that, described positioning part (5a) is for protruding from the projection of bull stick (5) lower end.
7. the speed reducer vacuum pumping device according to claim 1 or 2 or 3, is characterized in that, described bull stick (5) upper end has the scrap (bridge) (5b) of outwards turnover, and the top of described bull stick (5) offers the rotating hole (5c) of hexagonal configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420854866.4U CN204458247U (en) | 2014-12-30 | 2014-12-30 | Speed reducer vacuum pumping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420854866.4U CN204458247U (en) | 2014-12-30 | 2014-12-30 | Speed reducer vacuum pumping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204458247U true CN204458247U (en) | 2015-07-08 |
Family
ID=53665147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420854866.4U Withdrawn - After Issue CN204458247U (en) | 2014-12-30 | 2014-12-30 | Speed reducer vacuum pumping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204458247U (en) |
-
2014
- 2014-12-30 CN CN201420854866.4U patent/CN204458247U/en not_active Withdrawn - After Issue
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150708 Effective date of abandoning: 20160921 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |