CN105673694B - The solid box of two-way gear-type hydraulic motor - Google Patents
The solid box of two-way gear-type hydraulic motor Download PDFInfo
- Publication number
- CN105673694B CN105673694B CN201610158963.3A CN201610158963A CN105673694B CN 105673694 B CN105673694 B CN 105673694B CN 201610158963 A CN201610158963 A CN 201610158963A CN 105673694 B CN105673694 B CN 105673694B
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- CN
- China
- Prior art keywords
- groove
- seal ring
- floating seal
- sleeve body
- closure gasket
- 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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/74—Sealings of sliding-contact bearings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Motors (AREA)
- Sealing Of Bearings (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a kind of solid boxes of two-way gear-type hydraulic motor, including sleeve body, two sliding bearings, closure gasket groove and sealing element, it is equipped with oil guide groove at sleeve body both ends, the closure gasket groove is located on the outside of two axis holes, two radial seal grooves being connected with closure gasket groove are equipped at sleeve body both ends, two radial seal grooves of the same end are located at the both sides of a respectively corresponding oil guide groove, and oil guide groove is communicated by drawing oilhole with the bottom surface of closure gasket groove；The sealing element includes floating seal ring and moulding baffle ring, the bottom surface of floating seal ring is equipped with closed fliud flushing slot, the top surface of floating seal ring is equipped with the interior mounting groove of annular, the top surface both sides of floating seal ring are equipped with outer mounting groove, the both ends of outer mounting groove are located in two radial seal grooves of homonymy, interior mounting groove is connected by two link slots with two outer mounting grooves, and moulding baffle ring is set in interior mounting groove, two outer mounting grooves and four link slots.The present invention can substantially reduce static friction and the dynamic friction of motor, avoid increasing leakage and bite occurs for motor, to ensure motor performance stabilization and less trouble, and prolong the service life.
Description
Technical field
The present invention relates to a kind of solid boxes, are especially used for the solid box of two-way gear-type hydraulic motor.
Background technology
With the development of host system operating mode complexity and the promotion of pressure rating, as air-conditioning hydraulic motor, fan
The oil outlet of motor while output torque such as hydraulic motor also carries steering motor, fliud flushing motor etc. swinging load,
Its core element solid box has decisive role to motor performance；Traditional solid box includes the axis equipped with two axis holes
Cover ontology, the sliding bearing in two axis holes, closure gasket groove and sealing element on sleeve body inner face；The structure according to
The pre compressed magnitude larger by sealing element ensures sealing performance, the static friction and kinetic frictional resistances of such sealing element and gear face
All larger, in addition cutting in and out, under two-way tape high pressure oil and operating mode with impact in load, oil outlet pressure often changes,
The moment leakproofness of sealing element reduces, and leakage increases, and pressure oil not red switch motor is susceptible to motor bite, moment impact is forced
Stop or phenomenon that motor rotary speed cannot be stablized, leads to that performance is unstable, high failure rate；In addition sealing element is the rubber of elasticity
Part, fragile under the impact of bidirectional high-pressure oil, service life is shorter.
Invention content
It is an object of the invention to be directed to deficiencies of the prior art, a kind of two-way gear-type hydraulic motor is provided
Solid box, it can substantially reduce static friction and the dynamic friction of motor, avoid increasing under two-way frequent hydraulic oil impact
Bite occurs for leakage and motor, to ensure motor performance stabilization and less trouble, and prolongs the service life.
In order to achieve the above objectives, the solid box of two-way gear-type hydraulic motor of the invention includes equipped with two axis holes
Sleeve body, the sliding bearing in two axis holes, closure gasket groove and sealing element on sleeve body inner face, feature
It is to be equipped with oil guide groove at sleeve body both ends, the closure gasket groove is located on the outside of two axis holes, is all provided at sleeve body both ends
There are two radial seal grooves being connected with closure gasket groove, two radial seal grooves of the same end to be located at the two of a respectively corresponding oil guide groove
Side, oil guide groove are communicated by drawing oilhole with the bottom surface of closure gasket groove；The sealing element includes being placed in closure gasket groove and all diameters
Floating seal ring into seal groove and moulding baffle ring, floating seal ring are elastic material, and the bottom surface of floating seal ring is equipped with envelope
The fliud flushing slot closed, the top surface of floating seal ring are equipped with the interior mounting groove of annular, and the top surface both sides of floating seal ring are equipped with outer peace
The both ends of tankage, outer mounting groove are located in two radial seal grooves of homonymy, and interior mounting groove is connect by two with two outer mounting grooves
Slot is connected, and moulding baffle ring is set in interior mounting groove, two outer mounting grooves and four link slots；
The floating seal ring and moulding baffle ring of the present invention is assembled together as combination seal, and the top surface of the two is in same
One plane is as the sealing surface contacted with gear face；When work, under the impact of bidirectional hydraulic oil, the side of sleeve body is
High pressure chest, then the other side is low pressure chamber；Under the action of high pressure oil, there are diameters with motor shell for the sleeve body of high pressure chest side
To gap, high pressure oil enters the oil guide groove at sleeve body both ends by this radial clearance, then enters closure gasket groove by drawing oilhole
Fliud flushing slot below bottom and floating seal ring so that floating seal ring and moulding baffle ring are floated, contacted with gear face, are realized
The sealing of top surface, while high pressure oil enters the fliud flushing slot below floating seal ring, squeezes floating seal ring side wall to both sides, very well
Realization floating seal ring side sealing, ensure floating seal ring below have enough hydraulic pressure support power, avoid increase leak；
In addition top surface sealing and side sealing are the compensating actions by hydraulic coupling, therefore the pre compressed magnitude of sealing ring can be with very little, in this way
Static friction and the dynamic friction that motor can be substantially reduced can avoid motor bite occur, moment impact is forced and stopped or motor turns
The phenomenon that speed cannot be stablized, to ensure motor performance stabilization and less trouble；Moulding baffle ring can block high pressure from medial and lateral
Oil can protect the floating seal ring of elasticity, prevent it from being damaged too quickly under the double direction impulse of alternation, prolong the service life；
As a further improvement on the present invention, what each sliding bearing was opposite is equipped with axial internal leakage oil duct and leaks
Oil leak road, two external leakage oil ducts are connected by the connection oil groove on sleeve body；A small amount of Leakage Energy enters through external leakage oil duct
Low pressure chamber in shell where driven gear, then from protecgulum or after the leak that covers return to fuel tank, it is ensured that Leakage Energy with
Hydrops, pressure do not increase inside sliding bearing for the variation of surge, avoid the shape between sliding bearing and gear face
At high pressure, the whole floatability of solid box is not influenced, ensures sealing performance and less trouble；
As a further improvement on the present invention, the cross section of the fliud flushing slot is trapezoidal；Convenient for floating seal ring side wall by
It deforms, seal after action of hydraulic force, improve sealing effect；
As a further improvement on the present invention, floating seal ring is rubber material, and moulding baffle ring is polyamide material；Polyamides
Amine is plastic material, is deformed under the double direction impulse of alternation, and floating seal ring can be protected；
In conclusion the present invention under two-way frequent hydraulic oil impact, can substantially reduce the static friction of motor and move and rub
It wipes, avoids increasing leakage and bite occurs for motor, to ensure motor performance stabilization and less trouble, and prolong the service life.
Description of the drawings
Fig. 1 is the stereogram exploded view of the embodiment of the present invention.
Fig. 2 is the front view of solid box in Fig. 1.
Fig. 3 is the front view of floating seal ring in Fig. 1.
Fig. 4 is the rearview of Fig. 3.
Fig. 5 is the A-A sectional views of Fig. 3.
Fig. 6 is the B-B sectional views of Fig. 3.
Fig. 7 is the C-C sectional views of Fig. 3.
Fig. 8 is the front view of moulding baffle ring in Fig. 1.
Fig. 9 is the left view of Fig. 8.
Figure 10 is the D-D sectional views of Fig. 8.
Figure 11 is the E-E sectional views of Fig. 8.
Specific implementation mode
The invention will now be described in further detail with reference to the accompanying drawings.
As shown in Figure 1 to 11, the solid box of the two-way gear-type hydraulic motor includes the axle sleeve equipped with two axis holes 2
Ontology 1, the sliding bearing 3 in two axis holes 2, closure gasket groove 4 and sealing element on 1 inner face of sleeve body, in axis
Set ontology 1 both ends are equipped with oil guide groove 5, and the closure gasket groove 4 is located at two axis holes, 2 outside, be equipped at 1 both ends of sleeve body and
Two connected radial seal grooves 6 of closure gasket groove 4, two radial seal grooves 6 of the same end are located at the two of a respectively corresponding oil guide groove 5
Side, oil guide groove 5 are communicated by drawing oilhole 7 with the bottom surface of closure gasket groove 4；The sealing element includes being placed in closure gasket groove 4 and institute
It is rubber material to have the floating seal ring 8 and moulding baffle ring 13 in radial seal groove 6, floating seal ring 8, and moulding baffle ring 13 is poly-
The bottom surface of amide material, floating seal ring 8 is equipped with closed fliud flushing slot 9, and the cross section of fliud flushing slot 9 is trapezoidal, floating seal ring 8
Top surface be equipped with the interior mounting groove 10 of annular, the top surface both sides of floating seal ring 8 are equipped with outer mounting groove 11, outer mounting groove 11
Both ends are located in two radial seal grooves 6 of homonymy, and interior mounting groove 10 is connected by two link slots 12 with two outer mounting grooves 11, modeling
Shape baffle ring 13 is set in interior mounting groove 10, two outer mounting grooves 11 and four link slots 12；What each sliding bearing 3 was opposite is equipped with axis
To internal leakage oil duct 14 and external leakage oil duct 15, two external leakage oil ducts 15 be connected by connection oil groove 16 on sleeve body 1；
The floating seal ring 8 and moulding baffle ring 13 of the present invention is assembled together as combination seal, at the top surface of the two
In same plane as the sealing surface contacted with gear face；When work, under the impact of bidirectional hydraulic oil, sleeve body 1
Side is high pressure chest, then the other side be low pressure chamber, high and low pressure chamber with hydraulic oil direction change；Under the action of high pressure oil,
For the sleeve body 1 of high pressure chest side with motor shell there are radial clearance, high pressure oil enters sleeve body 1 by this radial clearance
The oil guide groove 5 at both ends, then by drawing oilhole 7 into the trapezoidal fliud flushing slot 9 of 8 lower section of the bottom of closure gasket groove 4 and floating seal ring, make
It obtains floating seal ring 8 and moulding baffle ring 13 is floated, contacted with gear face, realize the sealing of top surface, while high pressure oil entrance is floating
The fliud flushing slot 9 of 8 lower section of dynamic seal, the two side of floating seal ring 8 is squeezed to both sides, realizes floating seal ring 8 well
Side seals, and ensures that there is enough hydraulic pressure support power in 8 lower section of floating seal ring, avoids increasing leakage；Due to top surface sealing and side
Face sealing is the compensating action by hydraulic coupling, in addition high pressure oil is introduced into 8 lower section of floating seal ring by oilhole 7 is drawn, due to
The upper and lower end face pressure of floating seal ring 8 is equal, and floating seal ring 8 needs small precommpression to can be realized as effectively sealing,
In addition leakage is small, therefore the pre compressed magnitude of floating seal ring 8 with very little, can thus substantially reduce the static friction of motor and move
Friction, can avoid motor bite occur, moment impact is forced and stopped or phenomenon that motor rotary speed cannot be stablized, to ensure motor
It can stable and less trouble；Since internal leakage oil duct 14 and external leakage oil duct 15 communicate in the protecgulum or rear cover of hydraulic motor,
Two external leakage oil ducts 15 are connected by connecting oil groove 16, and a small amount of Leakage Energy can be lubricated sliding bearing 3, then through external leakage
Oil duct 15 enters the low pressure chamber where driven gear in shell, then from protecgulum or after the leak that covers return to fuel tank, it is ensured that
Leakage Energy is avoided as hydrops, pressure do not increase inside sliding bearing 3 for the variation of surge in sliding bearing 3 and tooth
Wheel forms high pressure between end face, does not influence the whole floatability of solid box, ensures sealing performance and less trouble；
Moulding baffle ring 13 is stuck at four link slots 12, and is placed between interior mounting groove 10 and two outer mounting grooves 11 and floats
In the boss section of sealing ring 8, it can avoid moulding baffle ring 13 and slided under the action of high pressure oil, moulding baffle ring 13 is from inside and outside side block
Firmly high pressure oil is deformed under the double direction impulse of alternation, can be protected the floating seal ring 8 of elasticity, be prevented it in the height of alternation
It damages, prolongs the service life too quickly under pressure oil double direction impulse；Trapezoidal fliud flushing slot 9 is so that 8 two side of floating seal ring is variable
Shape improves sealing effect.
Claims (4)
1. a kind of solid box of two-way gear-type hydraulic motor, includes sleeve body equipped with two axis holes, is set in two axis holes
Sliding bearing, closure gasket groove and sealing element on sleeve body inner face, it is characterised in that it is equal at sleeve body both ends
Equipped with oil guide groove, the closure gasket groove is located on the outside of two axis holes, and two to be connected with closure gasket groove are equipped at sleeve body both ends
Radial seal groove, two radial seal grooves of the same end are located at the both sides of a respectively corresponding oil guide groove, and oil guide groove is by drawing oilhole
It is communicated with the bottom surface of closure gasket groove；The sealing element includes the floating seal ring being placed in closure gasket groove and all radial seal grooves
With moulding baffle ring, floating seal ring is elastic material, and the bottom surface of floating seal ring is equipped with closed fliud flushing slot, floating seal ring
Top surface is equipped with the interior mounting groove of annular, and the top surface both sides of floating seal ring are equipped with outer mounting groove, and the both ends of outer mounting groove are located at
In two radial seal grooves of homonymy, interior mounting groove is connected by two link slots with two outer mounting grooves, and moulding baffle ring is set to interior peace
In tankage, two outer mounting grooves and four link slots.
2. the solid box of two-way gear-type hydraulic motor as described in claim 1, it is characterised in that each sliding bearing is equal
The opposite internal leakage oil duct for being equipped with axial direction and external leakage oil duct, two external leakage oil ducts pass through the connection oil groove phase on sleeve body
Even.
3. the solid box of two-way gear-type hydraulic motor as claimed in claim 1 or 2, it is characterised in that the fliud flushing slot
Cross section is trapezoidal.
4. the solid box of two-way gear-type hydraulic motor as claimed in claim 3, it is characterised in that floating seal ring is rubber
Glue material matter, moulding baffle ring are polyamide material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610158963.3A CN105673694B (en) | 2016-03-21 | 2016-03-21 | The solid box of two-way gear-type hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610158963.3A CN105673694B (en) | 2016-03-21 | 2016-03-21 | The solid box of two-way gear-type hydraulic motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105673694A CN105673694A (en) | 2016-06-15 |
| CN105673694B true CN105673694B (en) | 2018-08-24 |
Family
ID=56310914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610158963.3A Expired - Fee Related CN105673694B (en) | 2016-03-21 | 2016-03-21 | The solid box of two-way gear-type hydraulic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105673694B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061138B (en) * | 2017-06-20 | 2021-01-05 | 合肥长源液压股份有限公司 | High-pressure gear motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2423442Y (en) * | 2000-05-17 | 2001-03-14 | 淮阴机械总厂 | Improved structure of hydraulic gear pump integral floating axle sleeve |
| CN202597469U (en) * | 2012-05-26 | 2012-12-12 | 江苏国瑞液压机械有限公司 | Internal-leakage type gear motor shaft sleeve |
| CN203348001U (en) * | 2013-06-21 | 2013-12-18 | 上海大众液压技术有限公司 | Bidirectionally-balanced medium/high-pressure gear motor floating sealing ring and gear motor |
| CN203978823U (en) * | 2014-08-20 | 2014-12-03 | 合肥长源液压股份有限公司 | High-effect hydraulic full-balance floating buss |
| CN205559553U (en) * | 2016-03-21 | 2016-09-07 | 泸州思邦科技有限公司 | Two -way gear formula hydraulic motor's solid box |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0925883A (en) * | 1995-07-10 | 1997-01-28 | Shimadzu Corp | Gear pump or motor |
| JP3711588B2 (en) * | 1995-07-28 | 2005-11-02 | 株式会社島津製作所 | Gear pump or motor |
| JP3677827B2 (en) * | 1995-09-06 | 2005-08-03 | 株式会社島津製作所 | Gear pump or motor |
-
2016
- 2016-03-21 CN CN201610158963.3A patent/CN105673694B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2423442Y (en) * | 2000-05-17 | 2001-03-14 | 淮阴机械总厂 | Improved structure of hydraulic gear pump integral floating axle sleeve |
| CN202597469U (en) * | 2012-05-26 | 2012-12-12 | 江苏国瑞液压机械有限公司 | Internal-leakage type gear motor shaft sleeve |
| CN203348001U (en) * | 2013-06-21 | 2013-12-18 | 上海大众液压技术有限公司 | Bidirectionally-balanced medium/high-pressure gear motor floating sealing ring and gear motor |
| CN203978823U (en) * | 2014-08-20 | 2014-12-03 | 合肥长源液压股份有限公司 | High-effect hydraulic full-balance floating buss |
| CN205559553U (en) * | 2016-03-21 | 2016-09-07 | 泸州思邦科技有限公司 | Two -way gear formula hydraulic motor's solid box |
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| Publication number | Publication date |
|---|---|
| CN105673694A (en) | 2016-06-15 |
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Granted publication date: 20180824 |
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