CN203051109U - High-pressure gear pump floating side plate with press plate - Google Patents
High-pressure gear pump floating side plate with press plate Download PDFInfo
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- CN203051109U CN203051109U CN 201320015430 CN201320015430U CN203051109U CN 203051109 U CN203051109 U CN 203051109U CN 201320015430 CN201320015430 CN 201320015430 CN 201320015430 U CN201320015430 U CN 201320015430U CN 203051109 U CN203051109 U CN 203051109U
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- floating side
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Abstract
The utility model discloses a high-pressure gear pump floating side plate with a press plate, which belongs to the technical field of high-pressure gear pumps. One side of the floating side plate is provided with a W-shaped balance groove and an unloading groove, the other side of the floating side plate is provided with a W-shaped sealing groove, 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 installed in the W-shaped sealing groove, the thickness of the W-shaped reinforcing rib is smaller than the depth of the W-shaped sealing groove, the W-shaped press plate is installed on the W-shaped sealing groove, and the inner side of the W-shaped press plate is provided with a W-shaped shallow groove. By virtue of the peripheral area of the W-shaped shallow groove, the W-shaped sealing ring can be compacted better, so that the sealing effect on the end surface of the W-shaped sealing ring 3 can be well improved, the leakage between the end surfaces of the floating side plate and a gear can be effectively controlled, and the stress level of a hydraulic gear pump can be improved.
Description
Technical field
The utility model relates to a kind of high-pressure gear pump floating side plate, belongs 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 requiring more than the 31.5Mpa of having.Along with the aggravation of the high-pressure trend process of hydraulic gear pump, higher requirement is proposed hydraulic gear pump end face floating compensation component capabilities: plasticity and bending deflection, do not take place in the floating side plate balance that can keep-up pressure under hyperpressure and high temperature; The floating side plate sealed member is under hyperpressure and jiggly flow pulsation impact, and impact injury and distortion do not take place 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 difficult further.The 3rd, because 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 automatic 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 reducing the mechanical efficiency of hydraulic gear pump greatly.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art part, the utility model provides a kind of high-pressure gear pump floating side plate with pressing plate, strengthens sealing effect and Safety performance, can bear hyperpressure, improves 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 utility model is achieved by the following technical solution: 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 the 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 beneficial effects of the utility model are:
1, the inboard of the utility model " W " shape pressing plate is manufactured with the corresponding cooperation assembling with " W " shape stiffening rib on the floating side plate of " W " shape shallow slot, " W " shape shallow slot neighboring area can better compacting " W " shape seal ring, make that " 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 of gear pump is imitated and is obtained fine assurance, improve the voltage withstand class of hydraulic gear pump, satisfied gear oil pump at hyperpressure, usability requirement under high temperature and the high speed.
2, " W " of the present utility model 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
With embodiment the utility model is further specified with reference to the accompanying drawings below.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A place partial enlarged drawing of Fig. 1;
Fig. 3 is the utility model " 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 utility model " W " shape pressing plate plan view;
Fig. 7 is the utility model scheme of installation.
Among the figure, among the 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
Below in conjunction with embodiment the utility model is further specified.
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 the 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, on described " W " shape seal groove d " W " shape pressing plate 4 that described " W " shape seal ring 3 is compressed is housed, 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 at " 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 that " W " shape seal ring 3 end face seal effects obtain fine improvement, thereby to those skilled in the art, " W " shape seal ring 3(after the degree of depth of " shallow slot " approximates and compresses or " W " shape supporting bar 2) with poor, this statement of the thickness of " W " shape stiffening rib 1-1 be clearly.
As shown in Figure 7, the utility model scheme of installation can all be installed floating side plate in the gear both ends of the surface, and side plate can install and fix side plate 5 between the pump housing and floating side plate between the pump housing and gear, further strengthen effect.The utility model floating side plate 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 of gear pump is imitated and obtained 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 the compensating groove (b), " W " shape seal ring (3) is housed in described " W " the 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 " the 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 of band 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 |
|---|---|---|---|
| CN 201320015430 CN203051109U (en) | 2013-01-11 | 2013-01-11 | High-pressure gear pump floating side plate with press plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320015430 CN203051109U (en) | 2013-01-11 | 2013-01-11 | High-pressure gear pump floating side plate with press plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203051109U true CN203051109U (en) | 2013-07-10 |
Family
ID=48734067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320015430 Withdrawn - After Issue CN203051109U (en) | 2013-01-11 | 2013-01-11 | High-pressure gear pump floating side plate with press plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203051109U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103122853A (en) * | 2013-01-11 | 2013-05-29 | 徐州科源液压股份有限公司 | High-pressure gear pump floating side plate with pressing plate |
| CN108799101A (en) * | 2018-06-15 | 2018-11-13 | 哈尔滨理工大学 | A kind of novel floating buss of external gear rotary pump |
-
2013
- 2013-01-11 CN CN 201320015430 patent/CN203051109U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103122853A (en) * | 2013-01-11 | 2013-05-29 | 徐州科源液压股份有限公司 | High-pressure gear pump floating side plate with pressing plate |
| CN103122853B (en) * | 2013-01-11 | 2016-05-25 | 徐州科源液压股份有限公司 | With the high-pressure gear pump floating side plate of pressing plate |
| CN108799101A (en) * | 2018-06-15 | 2018-11-13 | 哈尔滨理工大学 | A kind of novel floating buss of external gear rotary pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130710 Effective date of abandoning: 20160525 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |