CN2466423Y - Theftproof oil plug for speed reducer - Google Patents
Theftproof oil plug for speed reducer Download PDFInfo
- Publication number
- CN2466423Y CN2466423Y CN00264564U CN00264564U CN2466423Y CN 2466423 Y CN2466423 Y CN 2466423Y CN 00264564 U CN00264564 U CN 00264564U CN 00264564 U CN00264564 U CN 00264564U CN 2466423 Y CN2466423 Y CN 2466423Y
- Authority
- CN
- China
- Prior art keywords
- plug cock
- cam
- main body
- retarder
- slide block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a theftproof oil plug for a speed reducer, which is composed of a cam slide block mechanism, a sealing mechanism, an oil plug main body and a locking block mechanism four parts. The utility model is characterized in that the cam slide block mechanism is composed of an oval cam, a slide block and a return spring; screws tightly fixes a cylinder, a static sealing ring and the oil plug main body together and has a limit function of the oval cam; the oil plug adopts the connection of right-hand threads and a speed reducing box and the connection of left-hand threads and a screw cap. A key drives the locking block mechanism in a hole of the oil plug main body to rotate, a shifting fork is promoted to shift the cam to rotate, and the slide block extends and is close to an inner wall of the speed reducing box to realize oil theftproof function; the appearance of the screw cap is similar to the appearance of the oil plug to increase the concealing performance.
Description
The utility model relates to a kind of novel gear oil plug, and it is the novel plug cock of a kind of retarder anti-theft oil that is constituted jointly by lock dog mechanism and cam slide mechanism, is used in the retarder of field works such as oil field, industrial and mineral.
Retarder is the most familiar parts concerning the oil recovery factory, oil field.To oil production equipment (as pumping unit, screw pump etc.), deceleration is a necessary link from power system (as motor, diesel engine etc.).Retarder is as the equipment of field work, lubricant oil often takes place by the phenomenon from the plug cock theft, causes the retarder insufficient lubrication and loses efficacy.At present, the plug cock that adopts on the market, tie all simple, no anti-theft capability.Stolen in order to prevent lubricant oil, the user who has adopts the dead way of weldering, be about to the weldering of plug cock and speed reducer and be one, can separate for the moment anxious although it is so, avoided losing of lubricant oil, but influenced the renewal of lubricant oil, because the volume and weight of oil pumping unit reduction gearbox is bigger, increase the workload that lubricant oil upgrades greatly, influenced the proper functioning of pumping unit.
The purpose of this utility model provides a kind of retarder plug cock simple in structure and easy to use.This plug cock can prevent that not only the lubricant oil in the speed reducer is stolen by plug cock, and can be the same with conventional plug cock, carries out the replacing of lubricant oil in the retarder.
For achieving the above object, the antitheft plug cock of retarder of the present utility model is made up of cam slide mechanism, sealing mechanism, plug cock main body and lock dog mechanism four parts, connects by shift fork is movable between cam slide mechanism and the lock dog mechanism.Cam slide mechanism is by oval cam, and slide block and Returnning spring are formed.Oval cam is positioned in the circular groove of the interior center of cylinder, and two slide blocks are through in the cylindrical wall upper aperture respectively and by two Returnning springs tensions that are connected on two slide blocks, abut against on the elliptic arc edge of oval cam.Screw tightens together cylinder, static seal circle and plug cock main body, and plays the position-limiting action of oval cam.
Described sealing mechanism is made up of dynamic seal ring and static seal circle.The static seal circle combines with interference fit with dynamic seal ring employing Spielpassung and connects dynamic seal ring and shift fork interference fit.
The plug cock main body adopts right-handed thread to connect with the retarder drain oil, and adopts left-handed thread to connect with nut.The outward appearance of nut is identical with the outward appearance of plug cock main body, fuses.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is an axial section of the present utility model:
Fig. 2 is an A-A sectional drawing of the present utility model shown in Figure 1:
Fig. 3 is an External view of the present utility model.
Fig. 1 has provided the axial section of this plug cock.Key is filled in keyhole (lock dog structure and identical with common fox lock with the connection principle of plug cock 9 in the copper heart lock dog 10, do not provide among the figure) and rotate counterclockwise 150 °, then affect shift fork 8, because shift fork 8 passes dynamic seal ring 7, be inserted in the square groove 5 of oval cam 2, oval cam 2 is rotated, slide block 3 is stretched out, be close to the speed reducer inwall, thereby, reach the anti-theft oil effect plug cock locking.When clockwise rotating key, because the effect of Returnning spring 4, make slide block 3 indentation cylinders 1, at this moment, the plug cock main body 9 of just can outwarding winding.
The radially outer edge groove external diameter of dynamic seal ring 7 and static seal circle 6 apertures are Spielpassung, and axial edge with the axial edge interference fit joint of static seal circle 6, this structure helps the rotation of shift fork 8, and can play sealing effect, prevents that lubricant oil from flowing into keyhole.
Plug cock main body 9 adopts left-handed threads to connect with nut 12, and connects with the speed reducer drain oil with right-handed thread, so just can prevent to steal oily person and outward winding unintentionally and steal nut 12, and so find the plug cock new structure.
Figure 2 shows that cam slide mechanism.This mechanism comprises oval cam 2, and there is one section thin cylindrical body at its center, is positioned at the groove 12 of cylinder 1, the groove interlock mutually of cam 2 edges and two slide blocks 3; Two slide blocks 3 pass through the effect of two Returnning springs 4, abut against on the elliptic arc edge of oval cam 2, because of wall upper aperture 17 constraints of cylinder 1, can only radially move back and forth again.
As shown in Figure 3, the right side part 11 of plug cock main body 9 is consistent with nut 12 outward appearances, is Hexagon, and external diameter is identical, fuses.So just can strengthen disguise, oily person is stolen in fascination.In addition, nut 12 is set, can prevents that sand and dust from entering accidents such as keyhole and leakage of oil and taking place.
When installing and using, the nut 12 of outwarding winding earlier puts in key the lockhole of copper heart lock dog 10, turn clockwise then, drive shift fork 8, thereby rotate oval cam 2, slide block 3 is only listened " puff " one, indentation cylinder 1 under the acting in conjunction of cam 2 and Returnning spring 4 and screw 14.Then plug cock main body 9 is screwed in the speed reducer drain oils, backward rotation key again, slide block 3 is backed down by oval cam 2, so slide block 3 stretches out cylinder 1 and near the speed reducer inwall, then cover and screw nut 12.So just, the retarder of antitheft plug cock being packed into.When needs were changed oil, process was opposite, promptly earlier nut 12 was outwarded winding, and utilized matched key to turn clockwise about 150 °, indentation slide block 3, and the plug cock 9 of outwarding winding so begin to drain the oil, cleans speed reducer; Install antitheft plug cock then, put new oil into.
Claims (6)
1. the antitheft plug cock of retarder is made up of cam slide mechanism, sealing mechanism, plug cock main body and lock dog mechanism four parts, it is characterized in that: connect by shift fork is movable between cam slide mechanism and the lock dog mechanism; Cam slide mechanism is by oval cam (2), and slide block (3) and Returnning spring (4) are formed; Oval cam (2) is positioned in the center circular groove (13) of cylinder (1), two slide blocks (3) pass two square holes (17) on the cylindrical wall respectively, and, abut against on the elliptic arc edge of oval cam (2) by two Returnning springs (4) tension that is connected on two slide blocks (3); Screw (14) tightens together cylinder (1), static seal circle (6) and plug cock main body (9), and plays the position-limiting action of oval cam (2).
2. the antitheft plug cock of retarder according to claim 1 is characterized in that: plug cock main body (9) adopts right-handed thread to connect with the retarder drain oil, adopts left-handed thread to connect with nut (12).
3. according to the antitheft plug cock of the retarder described in the claim 1, it is characterized in that: the radially outer edge groove external diameter of dynamic seal ring (7) and static seal circle (6) aperture are Spielpassung, and the axial edge interference fit joint of axial edge and static seal circle (6).
4. according to the antitheft plug cock of the retarder described in the claim 1, it is characterized in that: slide block (3) is provided with the groove that helps oval cam (2) guiding.
5. according to the antitheft plug cock of the retarder described in the claim 1, it is characterized in that: oval cam (2) is provided with and the corresponding small cylindrical tank (15) of screw (14).
6. according to the antitheft plug cock of retarder described in claim 1 or 2, it is characterized in that: the right side part (11) of plug cock main body (9) is consistent with nut (12) outward appearance, be Hexagon, and external diameter is identical, fuses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00264564U CN2466423Y (en) | 2000-12-13 | 2000-12-13 | Theftproof oil plug for speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00264564U CN2466423Y (en) | 2000-12-13 | 2000-12-13 | Theftproof oil plug for speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2466423Y true CN2466423Y (en) | 2001-12-19 |
Family
ID=33619212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00264564U Expired - Fee Related CN2466423Y (en) | 2000-12-13 | 2000-12-13 | Theftproof oil plug for speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2466423Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105549073A (en) * | 2015-12-21 | 2016-05-04 | 重庆璀陆探测技术有限公司 | Mechanical adherent flexible coupling probe for geological detection |
-
2000
- 2000-12-13 CN CN00264564U patent/CN2466423Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105549073A (en) * | 2015-12-21 | 2016-05-04 | 重庆璀陆探测技术有限公司 | Mechanical adherent flexible coupling probe for geological detection |
| CN105549073B (en) * | 2015-12-21 | 2024-09-03 | 重庆璀陆探测技术有限公司 | Mechanical geological detection adherence flexible coupling probe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |