CN103122853A - High-pressure gear pump floating side plate with pressing plate - Google Patents
High-pressure gear pump floating side plate with pressing plate Download PDFInfo
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- CN103122853A CN103122853A CN2013100108346A CN201310010834A CN103122853A CN 103122853 A CN103122853 A CN 103122853A CN 2013100108346 A CN2013100108346 A CN 2013100108346A CN 201310010834 A CN201310010834 A CN 201310010834A CN 103122853 A CN103122853 A CN 103122853A
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Abstract
The invention discloses a high-pressure gear pump floating side plate with a pressing plate, belonging to the technical field of high-pressure gear pumps. A W-shaped balance groove and an unloading groove are formed in one side of the floating side plate, a W-shaped sealing groove is formed in the other side of the floating side plate, a W-shaped reinforcing rib is arranged in the W-shaped sealing groove, a through hole is formed between the W-shaped sealing groove and the unloading groove, a W-shaped sealing ring is arranged in the W-shaped sealing groove, the thickness of the W-shaped reinforcing rib is less than the depth of the W-shaped sealing groove, a W-shaped pressing plate is arranged on the W-shaped sealing groove, and a W-shaped shallow slot is formed in the inner side of the W-shaped pressing plate. The W-shaped sealing ring can be well pressed by a region around the W-shaped shallow slot to ensure that a sealing effect of three end faces of the W-shaped sealing ring is well improved, the leakage of the floating side plate and the end face of a gear is effectively controlled, and the pressure resistance level of a hydraulic gear pump is increased.
Description
Technical field
The present invention relates to a kind of high-pressure gear pump floating side plate, belong to the axial pressure compensation floating member technical field of gear hydraulic pump.
Background technique
At present, construction machinery product requires supporting hydraulic gear oil pump rated pressure to reach 25～28MPa, even have require 31.5Mpa more than.Along with the aggravation of the high-pressure trend process of hydraulic gear pump, hydraulic gear pump end face floating compensation component capabilities is proposed higher requirement: floating side plate can keep pressure balance under hyperpressure and high temperature, and plasticity and bending deflection do not occur; The floating side plate sealed member is under hyperpressure and jiggly flow pulsation impact, and impact injury and distortion do not occur sealed member.
Raising along with pressure rating, existing hydraulic gear pump faces following problem: the one, and the radial imbalance force that hydraulic gear pump principal and subordinate gear shaft is subjected to significantly improves, this requires gear shaft structurally to optimize to reduce the amount of deflection deformation that the radial force unbalanced force causes, and the material that perhaps changes gear shaft improves its mechanical property; The 2nd, hydraulic gear pump at high temperature, high pressure, at a high speed under floating side plate and gear face friction pair formation and keep further difficult.The 3rd, due to the structural feature of gear pump, the axial end of gear pump leaks the 75%-80% that accounts for the total leakage rate of gear pump, adopts the auto-compensation ability of floating side plate, is to improve effectively arranging of gear pump volumetric efficiency to revolve.By the pretightening force of floating side plate rubber seal behind and effective applying that hydraulic coupling guarantees side plate and gear face.Under hyperpressure, adopt the side's amount that increases the Sealing decrement to realize floating compensation will greatly reducing the mechanical efficiency of hydraulic gear pump.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art part, the invention provides a kind of high-pressure gear pump floating side plate with pressing plate, strengthen sealing effect and Safety performance, can bear hyperpressure, improve the voltage withstand class of hydraulic gear pump; The force-bearing situation that has improved gear shaft has improved reliability and the working life of gear pump.
the present invention is achieved through the following technical solutions: a kind of high-pressure gear pump floating side plate with pressing plate, it comprise with gear pump in the suitable floating side plate of gear, the compensating groove that one side of the close gear face of floating side plate is manufactured with " W " shape, the compensating groove that is communicated with compensating groove, the opposite side of described floating side plate is manufactured with " W " shape seal groove, " W " shape stiffening rib is arranged in " W " shape seal groove, be manufactured with through hole between described " W " shape seal groove and compensating groove, in described " W " shape seal groove, " W " shape seal ring is housed, " W " shape seal ring integral assembling is on described " W " shape stiffening rib, it is characterized in that: the thickness of described " W " shape stiffening rib is less than the degree of depth of " W " shape seal groove, " W " shape pressing plate that described " W " shape seal ring is compressed is housed on described " W " shape seal groove, the inboard of " W " shape pressing plate is manufactured with " W " shape shallow slot, in the one section embedding in the outside described " W " the shape shallow slot of described " W " shape stiffening rib.
In the installed inside of described " W " shape seal ring, inboard suitable " W " shape supporting bar with " W " shape seal ring is arranged, inboard at described " W " shape seal groove expands accordingly the zone that holds " W " shape supporting bar, and the thickness of described " W " shape supporting bar is less than the thickness of described " W " shape stiffening rib.
The invention has the beneficial effects as follows:
1, the inboard of the present invention " W " shape pressing plate is manufactured with the cooperation assembling corresponding with " W " shape stiffening rib on floating side plate of " W " shape shallow slot, " W " shape shallow slot neighboring area can better compacting " W " shape seal ring, make " W " shape seal ring 3 end face seal effects obtain fine improvement, floating side plate and gear face leak and are effectively controlled, make the active force of floating side plate both ends of the surface more tend to balance, the volume effect of gear pump obtains fine assurance, improved the voltage withstand class of hydraulic gear pump, satisfied gear oil pump at hyperpressure, usability requirement under high temperature and high speed.
2, " W " of the present invention shape supporting bar can effectively support " W " shape seal ring, prevents from occurring being extruded overlap etc. and damage phenomenon under the hyperpressure effect.Strengthen sealing effect and Safety performance, improved the voltage withstand class of hydraulic gear pump; Improve the force-bearing situation of gear shaft, improved reliability and the working life of gear pump.
Description of drawings
The present invention is further described according to drawings and embodiments for the below.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the A place partial enlarged drawing of Fig. 1;
Fig. 3 is the present invention " W " shape seal ring scheme of installation;
Fig. 4 is the rear view of Fig. 3;
Fig. 5 is the B-B sectional view of Fig. 3;
Fig. 6 is the present invention " W " shape pressing plate plan view;
Fig. 7 is scheme of installation of the present invention.
In figure, in figure, 1, floating side plate, 1-1, " W " shape stiffening rib, 2, " W " shape supporting bar, 3, " W " shape seal ring, 4, " W " shape pressing plate, 4-1, " W " shape shallow slot, 5, fixed lateral plate, a, compensating groove, b, compensating groove, c, through hole, d, " W " shape seal groove.
Embodiment
The present invention is further described below in conjunction with embodiment.
as shown in drawings, a kind of high-pressure gear pump floating side plate with pressing plate, it comprise with gear pump in the suitable floating side plate 1 of gear, the compensating groove a that one side of floating side plate 1 close gear face is manufactured with " W " shape, the compensating groove b that is communicated with compensating groove a, the opposite side of described floating side plate 1 is manufactured with " W " shape seal groove d, " W " shape stiffening rib 1-1 is arranged in " W " shape seal groove d, be manufactured with through hole c between described " W " shape seal groove d and compensating groove b, in described " W " shape seal groove d, " W " shape seal ring 3 is housed, " W " shape seal ring 3 integral assemblings are on described " W " shape stiffening rib 1-1, the thickness of described " W " shape stiffening rib 1-1 is less than the degree of depth of " W " shape seal groove d, " W " shape pressing plate 4 that described " W " shape seal ring 3 is compressed is housed on described " W " shape seal groove d, the inboard of " W " shape pressing plate 4 is manufactured with " W " shape shallow slot 4-1, in the one section embedding in the outside described " W " the shape shallow slot 4-1 of described " W " shape stiffening rib 1-1.
In the installed inside of described " W " shape seal ring 3, inboard suitable " W " shape supporting bar 2 with " W " shape seal ring 3 is arranged, inboard at described " W " shape seal groove d expands accordingly the zone that holds " W " shape supporting bar 2, and the thickness of described " W " shape supporting bar 2 is less than the thickness of described " W " shape stiffening rib 1-1.
During making, process W shape shallow slot on " W " shape pressing plate 4, corresponding with the W shape stiffening rib that the floating side plate back side processes, and " W " shape shallow slot 4-1 size is slightly larger than the size of " W " shape stiffening rib 1-1.The degree of depth of herein " shallow slot " can satisfy following technique effect: can make the neighboring area can better compacting " W " shape seal ring and " W " shape supporting bar, make " W " shape seal ring 3 end face seal effects obtain fine improvement, thereby to those skilled in the art, the degree of depth of " shallow slot " approximates " W " shape seal ring 3(or " W " shape supporting bar 2 after compression) with poor, this statement of the thickness of " W " shape stiffening rib 1-1 be clearly.
As shown in Figure 7, scheme of installation of the present invention can all be installed floating side plate in the gear both ends of the surface, and side plate can be installed fixed lateral plate 5 between the pump housing and floating side plate between the pump housing and gear, further strengthen effect.Floating side plate of the present invention can bear hyperpressure, has improved the voltage withstand class of hydraulic gear pump; Improved the force-bearing situation of gear shaft, make the active force of floating side plate both ends of the surface more tend to balance, floating side plate and gear face leak and are effectively controlled, and the volume effect of gear pump obtains fine assurance, have satisfied the usability requirement of gear oil pump under hyperpressure, high temperature and high speed.
Claims (2)
1. high-pressure gear pump floating side plate with pressing plate, it comprise with gear pump in the suitable floating side plate (1) of gear, the compensating groove (a) that one side of the close gear face of floating side plate (1) is manufactured with " W " shape, the compensating groove (b) that is communicated with compensating groove (a), the opposite side of described floating side plate (1) is manufactured with " W " shape seal groove (d), " W " shape stiffening rib (1-1) is arranged in " W " shape seal groove (d), be manufactured with through hole (c) between described " W " shape seal groove (d) and compensating groove (b), " W " shape seal ring (3) is housed in described " W " shape seal groove (d), " W " shape seal ring (3) integral assembling is on described " W " shape stiffening rib (1-1), it is characterized in that: the thickness of described " W " shape stiffening rib (1-1) is less than the degree of depth of " W " shape seal groove (d), " W " shape pressing plate (4) that described " W " shape seal ring (3) is compressed is housed on described " W " shape seal groove (d), the inboard of " W " shape pressing plate (4) is manufactured with " W " shape shallow slot (4-1), in one section embedding described " W " the shape shallow slot in the outside of described " W " shape stiffening rib (1-1) (4-1).
2. the high-pressure gear pump floating side plate with pressing plate according to claim 1, it is characterized in that: in the installed inside of described " W " shape seal ring (3), inboard suitable " W " shape supporting bar (2) with " W " shape seal ring (3) is arranged, expand accordingly the zone that holds " W " shape supporting bar (2) in the inboard of described " W " shape seal groove (d), the thickness of described " W " shape supporting bar (2) is less than the thickness of described " W " shape stiffening rib (1-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310010834.6A CN103122853B (en) | 2013-01-11 | 2013-01-11 | With the high-pressure gear pump floating side plate of pressing plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310010834.6A CN103122853B (en) | 2013-01-11 | 2013-01-11 | With the high-pressure gear pump floating side plate of pressing plate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103122853A true CN103122853A (en) | 2013-05-29 |
| CN103122853B CN103122853B (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310010834.6A Active CN103122853B (en) | 2013-01-11 | 2013-01-11 | With the high-pressure gear pump floating side plate of pressing plate |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032313A (en) * | 2013-01-11 | 2013-04-10 | 徐州科源液压股份有限公司 | Floating side plate of ultrahigh voltage gear pump |
| CN105351186A (en) * | 2015-11-25 | 2016-02-24 | 徐州科源液压股份有限公司 | High-pressure gear pump with shaft sleeves of new structure |
| CN105370564A (en) * | 2015-11-24 | 2016-03-02 | 徐州科源液压股份有限公司 | Gear pump front cover with overflow protecting function |
| CN106523348A (en) * | 2016-12-14 | 2017-03-22 | 徐州科源液压股份有限公司 | Gear pump adopting impact-resistant type floating side plates |
| CN107269520A (en) * | 2017-07-17 | 2017-10-20 | 常州大学 | Magnetic compensation floating side plate sub-assembly |
| CN109737052A (en) * | 2018-12-14 | 2019-05-10 | 中国石油化工股份有限公司 | A kind of gear pump |
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| US3137238A (en) * | 1961-12-11 | 1964-06-16 | Clark Equipment Co | Pump or motor |
| US3891360A (en) * | 1973-03-06 | 1975-06-24 | Bosch Gmbh Robert | Gear machine with axially movable end wall seal |
| CN201396273Y (en) * | 2009-04-22 | 2010-02-03 | 徐州科源液压有限公司 | Novel ultra-high pressure gear oil pump |
| CN201606243U (en) * | 2009-10-26 | 2010-10-13 | 福州大学 | Novel high-pressure gear pump |
| CN201606246U (en) * | 2009-12-16 | 2010-10-13 | 徐州科源液压有限公司 | Floating lateral plate for high-pressure gear oil pump with annular balance tank |
| CN103032313A (en) * | 2013-01-11 | 2013-04-10 | 徐州科源液压股份有限公司 | Floating side plate of ultrahigh voltage gear pump |
| CN203051109U (en) * | 2013-01-11 | 2013-07-10 | 徐州科源液压股份有限公司 | High-pressure gear pump floating side plate with press plate |
| CN203051110U (en) * | 2013-01-11 | 2013-07-10 | 徐州科源液压股份有限公司 | Floating side plate of ultrahigh pressure gear pump |
-
2013
- 2013-01-11 CN CN201310010834.6A patent/CN103122853B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3137238A (en) * | 1961-12-11 | 1964-06-16 | Clark Equipment Co | Pump or motor |
| US3891360A (en) * | 1973-03-06 | 1975-06-24 | Bosch Gmbh Robert | Gear machine with axially movable end wall seal |
| CN201396273Y (en) * | 2009-04-22 | 2010-02-03 | 徐州科源液压有限公司 | Novel ultra-high pressure gear oil pump |
| CN201606243U (en) * | 2009-10-26 | 2010-10-13 | 福州大学 | Novel high-pressure gear pump |
| CN201606246U (en) * | 2009-12-16 | 2010-10-13 | 徐州科源液压有限公司 | Floating lateral plate for high-pressure gear oil pump with annular balance tank |
| CN103032313A (en) * | 2013-01-11 | 2013-04-10 | 徐州科源液压股份有限公司 | Floating side plate of ultrahigh voltage gear pump |
| CN203051109U (en) * | 2013-01-11 | 2013-07-10 | 徐州科源液压股份有限公司 | High-pressure gear pump floating side plate with press plate |
| CN203051110U (en) * | 2013-01-11 | 2013-07-10 | 徐州科源液压股份有限公司 | Floating side plate of ultrahigh pressure gear pump |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032313A (en) * | 2013-01-11 | 2013-04-10 | 徐州科源液压股份有限公司 | Floating side plate of ultrahigh voltage gear pump |
| CN105370564A (en) * | 2015-11-24 | 2016-03-02 | 徐州科源液压股份有限公司 | Gear pump front cover with overflow protecting function |
| CN105351186A (en) * | 2015-11-25 | 2016-02-24 | 徐州科源液压股份有限公司 | High-pressure gear pump with shaft sleeves of new structure |
| CN106523348A (en) * | 2016-12-14 | 2017-03-22 | 徐州科源液压股份有限公司 | Gear pump adopting impact-resistant type floating side plates |
| CN107269520A (en) * | 2017-07-17 | 2017-10-20 | 常州大学 | Magnetic compensation floating side plate sub-assembly |
| CN107269520B (en) * | 2017-07-17 | 2019-01-29 | 常州大学 | Magnetic compensation floating side plate sub-assembly |
| CN109737052A (en) * | 2018-12-14 | 2019-05-10 | 中国石油化工股份有限公司 | A kind of gear pump |
| CN109737052B (en) * | 2018-12-14 | 2020-04-17 | 中国石油化工股份有限公司 | Gear pump |
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|---|---|
| CN103122853B (en) | 2016-05-25 |
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