CN103122853B - With the high-pressure gear pump floating side plate of pressing plate - Google Patents
With the high-pressure gear pump floating side plate of pressing plate Download PDFInfo
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- CN103122853B CN103122853B CN201310010834.6A CN201310010834A CN103122853B CN 103122853 B CN103122853 B CN 103122853B CN 201310010834 A CN201310010834 A CN 201310010834A CN 103122853 B CN103122853 B CN 103122853B
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Abstract
The invention discloses a kind of high-pressure gear pump floating side plate with pressing plate, belong to high-pressure gear pump technical field. One side of floating side plate of the present invention is manufactured with compensating groove, the compensating groove of " W " shape, opposite side is manufactured with " W " shape seal groove, in " W " shape seal groove, there is " W " shape reinforcement, between described " W " shape seal groove and compensating groove, be manufactured with through hole, " W " shape sealing ring is housed in " W " shape seal groove, the thickness of described " W " shape reinforcement is less than the degree of depth of " W " shape seal groove, on described " W " shape seal groove, " W " shape pressing plate is housed, the inner side of " W " shape pressing plate is manufactured with " W " shape shallow slot. The present invention " W " shape shallow slot neighboring area can better compacting " W " shape sealing ring, makes " W " shape sealing ring 3 end face seal effects obtain fine improvement, and floating side plate and gear face leak and be effectively controlled, and have improved the voltage withstand class of hydraulic gear pump.
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 technology
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 to higher requirement: floating side plate can keep pressure balance under hyperpressure and high temperature, and plasticity and flexural deformation do not occur; Floating side plate seal member is under hyperpressure and jiggly flow pulsation impact, and impact injury and distortion do not occur seal member.
Along with the raising of 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 subject to significantly improves, this requires gear shaft structurally to optimize to reduce the amount of deflection deformation that radial load out-of-balance force causes, or the material of change 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 pair of friction components formation and keep further difficult. The 3rd, due to the design 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 and revolve of gear pump volumetric efficiency. Ensured effective laminating of side plate and gear face by the pretightning force of floating side plate rubber seal behind and hydraulic coupling. Under hyperpressure, adopt side's amount of increase seal decrement to realize floating compensation, will greatly reduce 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 effectiveness and security 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 service 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, floating side plate is manufactured with the compensating groove of " W " shape near a side of gear face, the compensating groove being communicated with compensating groove, the opposite side of described floating side plate is manufactured with " W " shape seal groove, in " W " shape seal groove, there is " W " shape reinforcement, between described " W " shape seal groove and compensating groove, be manufactured with through hole, in described " W " shape seal groove, " W " shape sealing ring is housed, " W " shape sealing ring integral assembling is on described " W " shape reinforcement, it is characterized in that: the thickness of described " W " shape reinforcement is less than the degree of depth of " W " shape seal groove, " W " shape pressing plate that described " W " shape sealing ring is compressed is housed on described " W " shape seal groove, the inner side of " W " shape pressing plate is manufactured with " W " shape shallow slot, in " W " shape shallow slot described in one section, the outside embedding of described " W " shape reinforcement.
In the inner side of described " W " shape sealing ring, " W " shape support bar suitable with the inner side of " W " shape sealing ring is installed, inner side at described " W " shape seal groove expands accordingly the region that holds " W " shape support bar, and the thickness of described " W " shape support bar is less than the thickness of described " W " shape reinforcement.
The invention has the beneficial effects as follows:
1, the inner side of the present invention " W " shape pressing plate is manufactured with " W " shape shallow slot and assembles with the corresponding cooperation of " W " shape reinforcement on floating side plate, " W " shape shallow slot neighboring area can better compacting " W " shape sealing ring, make " W " shape sealing ring 3 end face seal effects obtain fine improvement, floating side plate and gear face leak and are effectively controlled, the active force of floating side plate both ends of the surface is more tended to balance, the volume effect of gear pump obtains fine guarantee, improve the voltage withstand class of hydraulic gear pump, meet gear oil pump at hyperpressure, serviceability requirement under high temperature and high speed.
2, " W " of the present invention shape support bar can effectively support " W " shape sealing ring, prevents under hyperpressure effect, occurring being extruded the damage phenomenons such as overlap. Strengthen sealing effectiveness and security performance, improved the voltage withstand class of hydraulic gear pump; Improve the force-bearing situation of gear shaft, improved reliability and the service life of gear pump.
Brief description of the drawings
The present invention is further described according to drawings and embodiments 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 sealing ring scheme of installation;
Fig. 4 is the rearview of Fig. 3;
Fig. 5 is the B-B cutaway view of Fig. 3;
Fig. 6 is the present invention " W " shape pressing plate front view;
Fig. 7 is scheme of installation of the present invention.
In figure, in figure, 1, floating side plate, 1-1, " W " shape reinforcement, 2, " W " shape support bar, 3, " W " shape sealing ring, 4, " W " shape pressing plate, 4-1, " W " shape shallow slot, 5, fixed side, a, compensating groove, b, compensating groove, c, through hole, d, " W " shape seal groove.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is further described.
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, floating side plate 1 is manufactured with the compensating groove a of " W " shape near a side of gear face, the compensating groove b being communicated with compensating groove a, the opposite side of described floating side plate 1 is manufactured with " W " shape seal groove d, in " W " shape seal groove d, there is " W " shape reinforcement 1-1, between described " W " shape seal groove d and compensating groove b, be manufactured with through hole c, in described " W " shape seal groove d, " W " shape sealing ring 3 is housed, " W " shape sealing ring 3 integral assemblings are on described " W " shape reinforcement 1-1, the thickness of described " W " shape reinforcement 1-1 is less than the degree of depth of " W " shape seal groove d, on described " W " shape seal groove d, " W " shape pressing plate 4 that described " W " shape sealing ring 3 is compressed is housed, the inner side of " W " shape pressing plate 4 is manufactured with " W " shape shallow slot 4-1, in " W " shape shallow slot 4-1 described in one section, the outside embedding of described " W " shape reinforcement 1-1.
In the inner side of described " W " shape sealing ring 3, " W " shape support bar 2 suitable with the inner side of " W " shape sealing ring 3 is installed, inner side at described " W " shape seal groove d expands accordingly the region that holds " W " shape support bar 2, and the thickness of described " W " shape support bar 2 is less than the thickness of described " W " shape reinforcement 1-1.
When making, on " W " shape pressing plate 4, process W shape shallow slot, the W shape reinforcement processing with the floating side plate back side is corresponding, and " W " shape shallow slot 4-1 size is slightly larger than the size of " W " shape reinforcement 1-1. The degree of depth of " shallow slot " herein can meet following technique effect: can make the neighboring area can better compacting " W " shape sealing ring and " W " shape support bar, make " W " shape sealing 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 sealing ring 3(or " W " shape support bar 2 after compression) with poor, this statement of the thickness of " W " shape reinforcement 1-1 be clearly.
As shown in Figure 7, scheme of installation of the present invention, can all install floating side plate in gear both ends of the surface, and side plate, between the pump housing and gear, can be installed fixed side 5 between the pump housing and floating side plate, further strengthens effect. Floating side plate of the present invention can bear hyperpressure, has improved the voltage withstand class of hydraulic gear pump; Improve the force-bearing situation of gear shaft, the active force of floating side plate both ends of the surface is more tended to balance, floating side plate and gear face leak and are effectively controlled, and the volume effect of gear pump obtains fine guarantee, have met the serviceability requirement of gear oil pump under hyperpressure, high temperature and high speed.
Claims (1)
1. the 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 floating side plate (1) is manufactured with " W " shape near a side of gear face, the compensating groove (b) being communicated with compensating groove (a), the opposite side of described floating side plate (1) is manufactured with " W " shape seal groove (d), in " W " shape seal groove (d), there is " W " shape reinforcement (1-1), between described " W " shape seal groove (d) and compensating groove (b), be manufactured with through hole (c), in described " W " shape seal groove (d), " W " shape sealing ring (3) is housed, " W " shape sealing ring (3) integral assembling is on described " W " shape reinforcement (1-1), it is characterized in that: the thickness of described " W " shape reinforcement (1-1) is less than the degree of depth of " W " shape seal groove (d), " W " shape pressing plate (4) that described " W " shape sealing ring (3) is compressed is housed on described " W " shape seal groove (d), the inner side of " W " shape pressing plate (4) is manufactured with " W " shape shallow slot (4-1), in " W " shape shallow slot (4-1) described in one section, the outside embedding of described " W " shape reinforcement (1-1),
In the inner side of described " W " shape sealing ring (3), " W " shape support bar (2) suitable with the inner side of " W " shape sealing ring (3) is installed, inner side at described " W " shape seal groove (d) expands accordingly the region that holds " W " shape support bar (2), and the thickness of described " W " shape support bar (2) is less than the thickness of described " W " shape reinforcement (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 |
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| Publication Number | Publication Date |
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| CN103122853A CN103122853A (en) | 2013-05-29 |
| CN103122853B true CN103122853B (en) | 2016-05-25 |
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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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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032313B (en) * | 2013-01-11 | 2016-04-06 | 徐州科源液压股份有限公司 | The floating side plate of ultrahigh voltage gear pump |
| CN105370564B (en) * | 2015-11-24 | 2017-12-05 | 徐州科源液压股份有限公司 | Gear pump protecgulum with flood protection feature |
| 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 |
| CN107269520B (en) * | 2017-07-17 | 2019-01-29 | 常州大学 | Magnetic compensation floating side plate sub-assembly |
| CN109737052B (en) * | 2018-12-14 | 2020-04-17 | 中国石油化工股份有限公司 | Gear pump |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE625348A (en) * | 1961-12-11 | |||
| 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 |
| CN103032313B (en) * | 2013-01-11 | 2016-04-06 | 徐州科源液压股份有限公司 | The floating side plate of ultrahigh voltage gear pump |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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