CN102094905A - Pressure transmission sealing coupler - Google Patents
Pressure transmission sealing coupler Download PDFInfo
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- CN102094905A CN102094905A CN 201110031274 CN201110031274A CN102094905A CN 102094905 A CN102094905 A CN 102094905A CN 201110031274 CN201110031274 CN 201110031274 CN 201110031274 A CN201110031274 A CN 201110031274A CN 102094905 A CN102094905 A CN 102094905A
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Abstract
The invention discloses a pressure transmission sealing coupler. The coupler comprises a base in which an axial cavity is formed, wherein a rotating shaft which is provided with an input shaft interface and an output shaft interface passes through the axial cavity; the output shaft interface is positioned above the whole mechanism, and the input shaft interface is positioned below the whole mechanism; a bearing component and a base oil seal positioned above the bearing component are arranged between the rotating shaft and the base; and the base oil seal is provided with a waterproof pressure reducing sealing component which is compacted with the base oil seal, has an annular integral structure and is sleeved at the periphery of the rotating shaft and connected with the base. The waterproof pressure reducing sealing component is arranged, so that the bearing component in the coupler smoothly rotates and is prevented from being blocked, worn and burnt out even if the coupler works in an environment filled with particle impurities, and the service life of parts is prolonged; zero leakage is achieved, and the coupler has a good pressure reducing effect and a good axial movement prevention effect when working in a pressure transmission mode; and the coupler has a smart and compact structure and a wide application range, and can be applied to various shaft coupling occasions.
Description
Technical field
The present invention relates to a kind of coupling, particularly a kind of pressure type transmission coupling.
Background technique
In engineering is produced, coupling be a kind of by widespread usage, be used for connecting the accessory commonly used of driving shaft and driven shaft.It generally is provided with driving shaft interface and driven shaft interface, so is provided with bearing unit and black box between latter two interface.But the common seal degree of common coupling is limited, easily stuck in the rotation because of the infiltration of outer impurity, leak, thereby cause accessory serious wear such as bearing, oil sealing and have to change accessory, if guarantee sealing effect, will add many roads oil sealing, but but often can not realize because of the restriction of installing space; In addition, if coupling is to adopt the pressure type transmission, its meeting produce axial float because of reciprocal axial stress, quickens the damage of bearing, and causes structure to be shaken the pine inefficacy easily.Therefore, traditional coupling can not be worked in dust storm, mortar etc. is full of the rugged environment of granulometric impurity.In addition, though traditional coupling has input shaft interface and output shaft interface, the design form of output shaft interface is generally the notch pattern, if output shaft needs back and forth rotation like this, then extremely easy clashing and breaking notch shortens whole service life.
Summary of the invention
Purpose of the present invention is can be full of the pressure type transmission seal coupling of working under the environment of various granulometric impurities in order to provide a kind of.
The solution that the present invention solves its technical problem is:
Pressure type transmission seal coupling, it comprises: base, its inside is provided with axial cavity; Rotating shaft, it passes the axial cavity of base, and has input shaft interface and output shaft interface, and entire mechanism is the top with the position of output shaft interface, the position of input shaft interface is the below, is provided with bearing unit and the base oil sealing that is positioned at the bearing unit top between described rotating shaft and the base; Waterproof reduced pressure sealing assembly, its integral body is structure in the form of a ring, is nested with at the peripheral of described rotating shaft and with base to connect, and its lower end compresses described base oil sealing, is provided with above it described waterproof reduced pressure sealing assembly is pressed on locking mechanism on the base.
As further improvement in the technical proposal, described waterproof reduced pressure sealing assembly comprises the upper barrier cover assembly from top to bottom and is positioned at the bearing decompression external member of base upper end and compacting base oil sealing that described upper barrier cover assembly reduces pressure with bearing and is nested with the following door assembly that the two is connected mutually between the external member successively.
As further improvement in the technical proposal, described upper barrier cover assembly comprise be socketed in described rotating shaft periphery last oil sealing, described outside of going up oil sealing is provided with the upper bearing (metal) external member.
As further improvement in the technical proposal, described upper bearing (metal) external member comprises the upper barrier cover at the excircle place that is coated on oil sealing, be nested with ball bearing between upper barrier cover and last oil sealing, the superjacent air space of ball bearing and last oil sealing also is provided with the last cushion rubber that is embedded in the upper barrier cover.
As further improvement in the technical proposal, described door assembly down comprises the sand control water-stop seat of the bottom that is nested in the upper barrier cover assembly, its lower end and base inner wall scyewed joint, edge radial arrangement from inside to outside has roof pressure circle and middle oil sealing between upper end and the rotating shaft.
As further improvement in the technical proposal, the outer wall of described sand control water-stop seat is with and adjusting nut its scyewed joint, that be positioned at base top.
As further improvement in the technical proposal, described bearing decompression external member comprises the plane bearing that is nested in down door assembly bottom, and described plane bearing below is provided with down Oil sealing assembly, and described Oil sealing assembly bottom down compresses described base oil sealing.
As further improvement in the technical proposal, described output shaft interface is a polygonal hole.
The invention has the beneficial effects as follows: the present invention passes through installing waterproof reduced pressure sealing assembly between the base of coupling and rotating shaft, even make coupling be full of in the environment of granulometric impurity around being operated in, also can guarantee the smooth and easy rotation of internal bearings assembly, prevent that it is stuck, wearing and tearing burn out, prolonged the life-span of whole duplicate invoice axial organ greatly, and zero leakage reduces pressure when working with the pressure type kind of drive, prevents that axial float is effective.
In addition, the present invention also is arranged to the last oil sealing of rotating shaft outermost and the nested pattern that cooperates of ball bearing, can effectively prevent from like this to produce dry friction between oil sealing and rotating shaft, thereby burn out oil sealing.
The present invention also becomes polygonal hole with the output shaft Interface design, has changed intrinsic notch pattern, allows disperse toward combined stress, further prolongs the coupling bulk life time.
Compact and ingenious structure of the present invention, applied widely, can be used as coupling and be applied to the various occasions that need axle to connect.
Description of drawings
The present invention is further illustrated below in conjunction with drawings and Examples.
Fig. 1 is the of the present invention three-dimensional part cut away view among the embodiment;
Fig. 2 is the explosive view of the present invention among the embodiment;
Fig. 3 is the locking mechanism of the present invention among the embodiment.
Embodiment
Below with the present invention dress be added on the sand-slurry jetting machine, for preventing the mortar infiltration, for an embodiment as application form:
With reference to Fig. 1～Fig. 2, pressure type transmission seal coupling, it comprises: base 1, its inside is provided with axial cavity; Rotating shaft 2, it passes the axial cavity of base 1, and has input shaft interface 21 and output shaft interface 22, entire mechanism is the top with the position of output shaft interface 22, the position of input shaft interface 21 is the below, is provided with bearing unit and the base oil sealing 11 that is positioned at the bearing unit top between described rotating shaft 2 and the base 1; Waterproof reduced pressure sealing assembly 3, its integral body is structure in the form of a ring, is nested with at the peripheral of described rotating shaft 2 and with base 1 to connect, and its lower end compresses described base oil sealing 11, and its top is provided with the locking mechanism that described waterproof reduced pressure sealing assembly 3 is pressed on the base 1.
Described locking mechanism can adopt multiple structural type, as the latch of in rotating shaft 2, holing, slotting key, installation jump ring or the like, and with reference to Fig. 3, in the present embodiment, the mode that adopts the opening nut to compress.Particularly, machining screw section in rotating shaft 2, and make and open limit nut 5 with this thread section screws is opened on one side of limit and is provided with and rotating shaft 2 homoaxial tapped holes, and lock screw 6 is set in tapped hole.During assembling, opening limit nut 5 and rotating shaft 2 scyewed joint and being threaded to it is pushed down with the upper surface of waterproof reduced pressure sealing assembly 3, tighten lock screw 6 then, lateral deformation just takes place in the thread section of opening limit nut 5 like this, and the waterproof reduced pressure sealing assembly 3 of fastening below prevents that it from loosing and takes off and prevent self counter-rotating thus.
Be further used as preferred embodiment, described waterproof reduced pressure sealing assembly 3 comprises upper barrier cover assembly 31 from top to bottom and is positioned at the bearing decompression external member 33 of base 1 upper end and compacting base oil sealing 11 that described upper barrier cover assembly 31 reduces pressure with bearing and is nested with the following door assembly 32 that the two is connected mutually between the external member 33 successively.
Be further used as preferred embodiment, described upper barrier cover assembly 31 comprises and is socketed in inner baffle rings 311 described rotating shaft 2 peripheries, that rotate synchronously with rotating shaft 2, open the formation step outside the lower end of described inner baffle ring 311, its upper end closely is socketed with sand retaining ring 312, and sand retaining ring 312 peripheries are nested with the dubbin sealing assembly.Particularly, described sand retaining ring 312 is a steel ring.
Be further used as preferred embodiment, described dubbin sealing assembly comprises the last oil sealing 313 that is coated on sand retaining ring 312 peripheries, the described excircle of going up oil sealing 313 is provided with upper barrier cover 314, be nested with ball bearing 315 between upper barrier cover 314 and last oil sealing 313, ball bearing 315 also is provided with the last cushion rubber 316 that is embedded in the upper barrier cover 314 with the superjacent air space of last oil sealing 313.During assembling, to go up cushion rubber 316 earlier is embedded in the upper barrier cover 314, utilize the oil sealing of peripheral hardware that the slit of exposing of ball bearing 315 is sealed then, ball bearing 315 inner rings embed goes up oil sealing 313, then again ball bearing 315 is pressed in the upper barrier cover 314 and with last cushion rubber 316 and leans, utilize jump ring 317 to block the lower opening of upper barrier cover 314 at last, the outer ring of ball bearing 315 is locked.Like this, last oil sealing 313 is arranged to and the ball bearing 315 nested patterns that cooperate, except the impurity that can prevent the outside enters, can also be prevented effectively that 2 of oil sealing and rotating shafts from producing dry friction, thus the overheated oil sealing that burns out.Can be connected and fixed the support when rotating by peripheral hardware fixing frame and upper barrier cover 314 to make ball bearing 315.
Be further used as preferred embodiment, described door assembly 32 down comprises the sand control water-stop seat 321 of the bottom that is nested in upper barrier cover assembly 31, its lower end connects with base 1 inner thread, and edge radial arrangement from inside to outside has roof pressure circle 322 and middle oil sealing 323 between upper end and the rotating shaft 2.Particularly, described roof pressure circle 322 also is a steel ring, is provided with felt collar 324 in the pressing position of inner baffle ring 311 and sand control water-stop seat 321.
Upper barrier cover assembly 31 distributes and nested structure with the parts of following door assembly 32, make easily damaged parts focus on the top, and the parts of below is protected.The easily damaged parts of top changes easily simultaneously, is convenient to maintenance.
Be further used as preferred embodiment, the outer wall of described sand control water-stop seat 321 is with and adjusting nut 325 its scyewed joint, that be positioned at base 1 top.
Be further used as preferred embodiment, described bearing decompression external member 33 comprises the plane bearing 331 that is nested in down door assembly 32 bottoms, described plane bearing 331 belows are lined with down cushion rubber 332 and following oil sealing 333 successively, described oil sealing 333 down leans base oil sealing 11 and the 321 lower end surface pressings of sand control water-stop seat with rotating shaft 2 shaft shoulders.By rotation adjusting nut 325, can adjust the pressing degree between sand control water-stop seat 321 lower ends and the plane bearing 331 again, the convenient axial clearance of regulating; Space between following cushion rubber 332 and the following oil sealing 333 is filled and is gone up butter, thereby forms lubricated butter cabin, helps bearing lubrication and shutoff impurity; Because when in sand-slurry jetting machine, using, the screw rod rotation is sent mortar before stirring, therefore can form back pressure, allow rotating shaft 2 that axial float, radial misalignments take place, this is the formidable problem of pressure type driving mechanism, and the plane bearing 331 of assembling has release, stablizes the function of rotating shaft 2, can resist back pressure effectively, prevent rotating shaft 2 axial floats and radial misalignments.
Be further used as preferred embodiment, described output shaft interface 22 is a polygonal hole.Particularly, described polygonal hole is cubic hole, and correspondingly, the spiral shell club head that is connected with it also is processed into square axis, nestedly locks with screw to this output shaft interface 22 backs.Owing to the often back and forth rotation of screw rod of sand-slurry jetting machine, so after being processed into cubic hole, interface has changed intrinsic notch pattern, allows past combined stress disperse, and further prolongs the coupling bulk life time.
When supposing work, outside of the present invention has mortar to invade, then its invade path must be earlier from the slit between inner baffle ring 311 and the rotating shaft 2, again around to roof pressure circle 322 and middle oil sealing 323 tops; Or from the slit that inner baffle ring 311 and sand control water-stop seat 321 fasten, invade, overflow then to sand control water-stop seat 321 and inner baffle ring 311 tops, again around to roof pressure circle 322 and middle oil sealing 323 tops.But because the step between above-mentioned each parts is engaged, its formed slit has constituted the waterproof claustra, even outside mortar invades the slit of low level, also is difficult to the casual high-order slit of.Add stopping of felt collar 324, the amount of the mortar that can enter has been lacking very.When the mortar of trace infiltrate to roof pressure circle 322 with middle oil sealing 323 above after, middle oil sealing 323 plays again and seals and barrier effect; In addition, if there is mortar to infiltrate from the sand control water-stop seat 321 and the position that screws of base 1, it also can be subjected to down cushion rubber 332, following oil sealing 333 and stopping of base oil sealing 11 and be difficult to invade.Therefore the present invention when using as the coupling between motor deceleration case output shaft and the agitating screw, has the excellent waterproof sealability in being applied to sand-slurry jetting machine.Certainly, when installing, upper barrier cover 314 and the inwall welding of carrying the bunker hopper can be mixed outside oil sealing more as required, make to support the usefulness of sealing.
More than be that better embodiment of the present invention is specified, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite of spirit of the present invention, modification that these are equal to or replacement all are included in the application's claim institute restricted portion.
Claims (8)
1. pressure type transmission seal coupling, it is characterized in that: it comprises:
Base (1), its inside is provided with axial cavity;
Rotating shaft (2), it passes the axial cavity of base (1), and has input shaft interface (21) and output shaft interface (22), entire mechanism is the top with the position of output shaft interface (22), the position of input shaft interface (21) is the below, is provided with bearing unit and the base oil sealing that is positioned at the bearing unit top between described rotating shaft (2) and the base (1);
Waterproof reduced pressure sealing assembly (3), its integral body is structure in the form of a ring, be nested with at the peripheral of described rotating shaft (2) and with base (1) and connect, its lower end compresses described base oil sealing, is provided with above it described waterproof reduced pressure sealing assembly (3) is pressed on locking mechanism on the base (1).
2. pressure type transmission seal coupling according to claim 1, it is characterized in that: described waterproof reduced pressure sealing assembly (3) comprises upper barrier cover assembly (31) from top to bottom and is positioned at the bearing decompression external member (33) of base (1) upper end and compacting base oil sealing that described upper barrier cover assembly (31) reduces pressure with bearing and is nested with the following door assembly (32) that the two is connected mutually between the external member (33) successively.
3. pressure type transmission seal coupling according to claim 2 is characterized in that: described upper barrier cover assembly (31) comprise be socketed in described rotating shaft (2) peripheral last oil sealing (313), described on the outside of oil sealing (313) be provided with the upper bearing (metal) external member.
4. pressure type transmission seal coupling according to claim 3, it is characterized in that: described upper bearing (metal) external member comprises the upper barrier cover (314) at the excircle place that is coated on oil sealing (313), be nested with ball bearing (315) between upper barrier cover (314) and last oil sealing (313), ball bearing (315) also is provided with the last cushion rubber (316) that is embedded in the upper barrier cover (314) with the superjacent air space of last oil sealing (313).
5. pressure type transmission seal coupling according to claim 2, it is characterized in that: described door assembly (32) down comprises the sand control water-stop seat (321) of the bottom that is nested in upper barrier cover assembly (31), its lower end connects with base (1) inner thread, and edge radial arrangement from inside to outside has roof pressure circle (322) and middle oil sealing (323) between upper end and the rotating shaft (2).
6. pressure type transmission seal coupling according to claim 5 is characterized in that: the outer wall of described sand control water-stop seat (321) is with and adjusting nut (325) its scyewed joint, that be positioned at base (1) top.
7. pressure type transmission seal coupling according to claim 2, it is characterized in that: described bearing decompression external member (33) comprises the plane bearing (331) that is nested in down door assembly (32) bottom, described plane bearing (331) below is provided with down Oil sealing assembly, and described Oil sealing assembly bottom down compresses described base oil sealing.
8. pressure type transmission seal coupling according to claim 1 is characterized in that: described output shaft interface (22) is a polygonal hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100312743A CN102094905B (en) | 2011-01-28 | 2011-01-28 | Pressure transmission sealing coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100312743A CN102094905B (en) | 2011-01-28 | 2011-01-28 | Pressure transmission sealing coupler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102094905A true CN102094905A (en) | 2011-06-15 |
| CN102094905B CN102094905B (en) | 2012-11-07 |
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ID=44128121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100312743A Expired - Fee Related CN102094905B (en) | 2011-01-28 | 2011-01-28 | Pressure transmission sealing coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102094905B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104441328A (en) * | 2014-12-08 | 2015-03-25 | 张家港市联达机械有限公司 | Squeezing pre-grain-cutting machine for plastic recovery |
| CN112021956A (en) * | 2020-09-02 | 2020-12-04 | 珠海具方达科技有限公司 | High-precision combined shaft sleeve and spiral structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2644770Y (en) * | 2003-08-09 | 2004-09-29 | 上汽集团奇瑞汽车有限公司 | Viscous coupling capable of torque dynamic allocation in drive unit of four-driving vehicle |
| US20050279513A1 (en) * | 2004-06-22 | 2005-12-22 | Pathfinder Energy Services, Inc. | Connector assembly useful with a downhole tool |
| CN101871534A (en) * | 2010-06-01 | 2010-10-27 | 任宇 | Pressure-type transmission sealing shaft sleeve |
| CN201991956U (en) * | 2011-01-28 | 2011-09-28 | 任宇 | Pressure type transmission seal coupling |
-
2011
- 2011-01-28 CN CN2011100312743A patent/CN102094905B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2644770Y (en) * | 2003-08-09 | 2004-09-29 | 上汽集团奇瑞汽车有限公司 | Viscous coupling capable of torque dynamic allocation in drive unit of four-driving vehicle |
| US20050279513A1 (en) * | 2004-06-22 | 2005-12-22 | Pathfinder Energy Services, Inc. | Connector assembly useful with a downhole tool |
| CN101871534A (en) * | 2010-06-01 | 2010-10-27 | 任宇 | Pressure-type transmission sealing shaft sleeve |
| CN201991956U (en) * | 2011-01-28 | 2011-09-28 | 任宇 | Pressure type transmission seal coupling |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104441328A (en) * | 2014-12-08 | 2015-03-25 | 张家港市联达机械有限公司 | Squeezing pre-grain-cutting machine for plastic recovery |
| CN112021956A (en) * | 2020-09-02 | 2020-12-04 | 珠海具方达科技有限公司 | High-precision combined shaft sleeve and spiral structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102094905B (en) | 2012-11-07 |
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Granted publication date: 20121107 Termination date: 20140128 |