CN102536798A - Compensation gear pump for internal-pressure passage - Google Patents
Compensation gear pump for internal-pressure passage Download PDFInfo
- Publication number
- CN102536798A CN102536798A CN2011104626006A CN201110462600A CN102536798A CN 102536798 A CN102536798 A CN 102536798A CN 2011104626006 A CN2011104626006 A CN 2011104626006A CN 201110462600 A CN201110462600 A CN 201110462600A CN 102536798 A CN102536798 A CN 102536798A
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- gear
- outer end
- axis hole
- end cap
- driven
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- 238000003825 pressing Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
A compensation gear pump for an internal-pressure passage comprises a drive shaft, a driven shaft, a main gear, a slave gear, an end surface compensation plate, a front outer end cover, an end cover bolt, a pump body and a rear outer end cover, wherein the end surface compensation plate is arranged between the main gear and the front outer end cover as well as between the slave gear and the front outer end cover; the internal-pressure passage is arranged on the pump body; one end of the internal-pressure passage is communicated with the cavity on the back side of the compensation plate; and the other end of the internal-pressure passage is communicated with an outlet opening. According to the axial rebounding force of the internal-pressure passage in the cavity on the back side of the compensation plate, the front plane surface of the end surface compensation plate is clung to the end plane surfaces on one side of the main gear and one side of the slave gear, so that the end plane surfaces on the other sides of the main gear and the slave gear are clung to the inner plane surface of the rear outer end cover, so as to form an compensation clearance control technology for axial end surface abrasion and ensure the efficient operation of the gear pump all the while. The compensation gear pump has the advantages of original conception, simple structure, convenience in manufacture, and large market application potential.
Description
Technical field
The invention belongs to mechanical engineering field, International Classification of Patents is the F04D non-varactor pump, relate to a kind of with mechanical energy convert into fluid pressure can the transformation of energy rotary volume pump, be meant especially a kind of in pressure passageway compensation gear pump.
Background technique
Rotary volume pump has the high advantage of efficient, but all exists its efficient of long-time running wearing and tearing back obviously to reduce, and causes the main cause of above-mentioned defective to be that movable isolation of end face between hyperbaric chamber and the low pressure chamber fail to play effective sealing.The undersized easy heat expansion of end face fit tolerance is stuck firmly; The end face fit tolerance is oversize then fails to play effective sealing; And long-time running wearing and tearing back sealing effect is poorer, and the production line of having to stop is changed pumping unit, causes very big direct waste and indirect loss.
In all rotary volume pumps, vane pump is widely used in each industry and commerce field because of plurality of advantages such as its compact structures.Perplexing its problem that always can not get effectively solving is: behind the long-term high speed operation, must wearing and tearing of its end face can not get effective compensation.China's license notification number: CN1059019C pendulum rotary vane pump; China's license notification number: CN100374725C rotating vane pump; China's license notification number: the arc toothed mesohigh gear pump of CN1306162C asymmetric double; The internal gear pump of China's license notification number: CN1081750C band plastic shell; China's license notification number: CN101120175B and China's license notification number: a CN101403382B gear pump for micro-miniature turbojet engine etc.; All do not see method and measure that practicable effective compensation is arranged, solve the end wear gap control problem of rotary volume pump.
Summary of the invention
The purpose of this invention is to provide a kind of interior pressure passageway compensation gear pump; When effectively controlling radial clearance; Also possess end wear compensation isolation technology,, remedy the deficiency of existing technology to realize being in efficient external series gap state of a control all the time between hyperbaric chamber and the low pressure chamber; Fill up rotary volume pump when effectively controlling radial clearance, also possess the technological gap of end wear compensate for clearance control.
To achieve these goals; The present invention provides following technological scheme: pressure passageway compensation gear pump in a kind of; Comprise driving shaft, driven shaft, master gear, from gear, end-face compensate dish, preceding outer end cap, bolts, the pump housing, back outer end cap; The both ends of the surface of the described pump housing are vertical each other with two semicircle orifices, and outer end cap all has bolts fastening with the back outer end cap before being stamped respectively on the both ends of the surface; The protecgulum of outer end cap active axis hole is on the same axis with the bonnet active axis hole of back outer end cap before described; The driven axis hole of protecgulum of outer end cap is on the same axis with the driven axis hole of bonnet of back outer end cap before described, described driving shaft and protecgulum initiatively between axis hole and the bonnet active axis hole for being slidingly matched; Between driven axis hole of described driven shaft and protecgulum and the driven axis hole of bonnet for being slidingly matched, described master gear and driving shaft secure fit and between preceding outer end cap and back outer end cap; Described from gear and driven shaft secure fit and between preceding outer end cap and back outer end cap; Described master gear be meshing with each other from gear; As improvement: described master gear and between gear and preceding outer end cap, the end-face compensate dish is arranged; And have in one on the described pump housing and press path, an end of interior pressure path is being communicated with the compensating disc backside cavity, and the other end of interior pressure path is being communicated with exhaust port.
As further improvement: described end-face compensate dish have compensating disc initiatively axis hole and protecgulum initiatively axis hole and bonnet active axis hole are on the same axis; Described end-face compensate dish has driven axis hole of compensating disc and the driven axis hole of protecgulum and the driven axis hole of bonnet to be on the same axis; The two semicircle external frames of the compensating disc of described end-face compensate dish are slidingly matched with two semicircle orifices; The described end-face compensate dish back side also has the compensating disc backside cavity.
Structural principle:
External force is through main shaft keyway input, by the related master gear rotation of driving shaft, through master gear be meshing with each other from gear, order about from the gear opposite spin master gear cylindrical and all be slidingly matched with two semicircle orifices from top circle.
Master gear and equal from the gear width.Have in one on the described pump housing and press path, an end of interior pressure path is being communicated with the compensating disc backside cavity, and the other end of interior pressure path is being communicated with exhaust port.The axial force that is produced in the compensating disc backside cavity by means of interior pressure passageway; Make the horizontal frontal plane of end-face compensate dish be close to master gear and from a side plane of gear; Force master gear and be close to the inner plane of outer end cap afterwards from the opposite side Transverse plane of gear; Constitute axial end wear compensation gap control technology, guarantee that gear pump is in high-efficiency operation all the time.
Master gear and from gear when rotated through adjacent two tooth working spaces, constantly bring liquid working media into adjacent two tooth working spaces from suction port, after the rotation semi-circumference, squeeze exhaust port, go round and begin again.
The invention has the beneficial effects as follows: in the axial force that the compensating disc backside cavity is produced, make the horizontal frontal plane of end-face compensate dish be close to master gear and by means of interior pressure passageway, force master gear and be close to the inner plane of back outer end cap from the opposite side Transverse plane of gear from a side plane of gear; Constitute axial end wear compensation gap control technology; Guarantee that gear pump is in high-efficiency operation all the time, novel, simple in structure; The convenient manufacturing, application market has a high potential.
Description of drawings
Fig. 1 is the whole sectional drawing through two main axiss of the present invention;
Fig. 2 is the P-P sectional view among Fig. 1;
Fig. 3 is the back side stereogram of the end-face compensate dish 40 among Fig. 1;
Fig. 4 is the sectional view in Q-Q cross section among Fig. 1;
Fig. 5 is a R-R step sectional view among Fig. 4.
Embodiment
In conjunction with accompanying drawing and embodiment, further structure of the present invention and working principle are elaborated.
Pressure passageway compensation gear pump in a kind of; Comprise driving shaft 11, driven shaft 12, master gear 51, from gear 52, end-face compensate dish 40, preceding outer end cap 60, bolts 70, the pump housing 80, back outer end cap 90; The both ends of the surface of the described pump housing 80 are vertical each other with pair semicircle orifice 85, and outer end cap 60 all has bolts 70 fastening with back outer end cap 90 before being stamped respectively on the both ends of the surface; The protecgulum of outer end cap 60 active axis hole 61 is on the same axis with the bonnet active axis hole 91 of back outer end cap 90 before described; The driven axis hole 62 of the protecgulum of outer end cap 60 is on the same axis with the driven axis hole 92 of bonnet of back outer end cap 90 before described, described driving shaft 11 and protecgulum initiatively between axis hole 61 and the bonnet active axis hole 91 for being slidingly matched; Between driven axis hole 62 of described driven shaft 12 and protecgulum and the driven axis hole 92 of bonnet for being slidingly matched, described master gear 51 and driving shaft 11 secure fit and between preceding outer end cap 60 and back outer end cap 90; Described from gear 52 and driven shaft 12 secure fit and between preceding outer end cap 60 and back outer end cap 90; Described master gear 51 be meshing with each other from gear 52; As improvement: described master gear 51 and between gear 52 and preceding outer end cap 60, end-face compensate dish 40 is arranged; And have on the described pump housing 80 and press path 30 in one, an end of interior pressure path 30 is being communicated with compensating disc backside cavity 43, and the other end of interior pressure path 30 is being communicated with exhaust port 84.
As further improvement: described end-face compensate dish 40 have compensating disc initiatively axis hole 411 and protecgulum initiatively axis hole 61 and bonnet initiatively axis hole 91 be on the same axis; Described end-face compensate dish 40 has the driven axis hole 412 of compensating disc to be on the same axis with driven axis hole 62 of protecgulum and the driven axis hole 92 of bonnet; The two semicircle external frames 48 of the compensating disc of described end-face compensate dish 40 are slidingly matched with two semicircle orifices 85; Described end-face compensate dish 40 back sides also have compensating disc backside cavity 43.
Embodiment's installation steps and working procedure are following.
Installation steps:
In Fig. 1, it is 17 numbers of teeth that embodiment selects master gear 51, also is 17 numbers of teeth from gear 52.Bolts 70 numbers of each side of the pump housing 80 are 6.
On a side end face of the pump housing 80, place gasket seal, rear end enclosing cover 90 is fixed on the side end face of the pump housing 80 with 6 bolts 70.
In the groove of bonnet active axis hole 91, put into driving shaft seal ring 21; In the groove of the driven axis hole 92 of bonnet, put into driven shaft seal ring 22.
With the appropriate location of master gear 51 stationary at driving shaft 11; Will be from the appropriate location of gear 52 stationary at driven shaft 12.Short exposed junction with driving shaft 11 inserts in the bonnet active axis hole 91 again; The short exposed junction of driven shaft 12 inserts in the driven axis hole 92 of bonnet, master gear 51 be meshing with each other from gear 52, make master gear 51 and pasting the inner plane of back outer end cap 90 from a side end face of gear 52.
With the horizontal frontal plane of end-face compensate dish 40 towards master gear 51 with from gear 52; Let compensating disc active axis hole 411 be inserted in the long exposed junction of driving shaft 11; Let the driven axis hole 412 of compensating disc be inserted in the long exposed junction of driven shaft 12; Make master gear 51 and pasting the horizontal frontal plane of end-face compensate dish 40 from the opposite side end face of gear 52, the two semicircle external frames 48 of compensating disc are slidingly matched with two semicircle orifices 85.
In the groove of protecgulum active axis hole 61 and in the groove of the driven axis hole 62 of protecgulum, put into driving shaft seal ring 21 and driven shaft seal ring 22 respectively.
On the opposite side end face of the pump housing 80, place gasket seal; Preceding outer end cap 60 is fixed on the opposite side end face of the pump housing 80 with 6 bolts 70; Make the long exposed junction of driving shaft 11 pass through initiatively axis hole 61 of protecgulum, driving shaft keyway 17 is in outside the preceding outer end cap 60; The long exposed junction of driven shaft 12 passed through the driven axis hole 62 of protecgulum.Have on the pump housing 80 and press path 30 in one, an end of interior pressure path 30 is being communicated with compensating disc backside cavity 43, and the other end of interior pressure path 30 is being communicated with exhaust port 84.
During the work operation:
In Fig. 2, external force,, is ordered about from gear 52 opposite spins through master and slave gear engagement by driving shaft 11 related master gears 51 rotations through driving shaft keyway 17 input, master gear 51 cylindricals and all be slidingly matched with two semicircle orifices from gear 52 cylindricals.
Claims (2)
1. pressure passageway compensation gear pump in a kind; Comprise driving shaft (11), driven shaft (12), master gear (51), from gear (52), end-face compensate dish (40), preceding outer end cap (60), bolts (70), the pump housing (80), back outer end cap (90); The both ends of the surface of the described pump housing (80) are vertical each other with two semicircle orifices (85), be stamped respectively on the both ends of the surface preceding outer end cap (60) and afterwards outer end cap (90) all have bolts (70) fastening; The protecgulum of outer end cap (60) active axis hole (61) is on the same axis with the bonnet active axis hole (91) of back outer end cap (90) before described; The driven axis hole of protecgulum (62) of outer end cap (60) is on the same axis with the driven axis hole of bonnet (92) of back outer end cap (90) before described, described driving shaft (11) and protecgulum initiatively between axis hole (61) and the bonnet active axis hole (91) for being slidingly matched; Between described driven shaft (12) and the driven axis hole of protecgulum (62) and the driven axis hole of bonnet (92) for being slidingly matched, described master gear (51) and driving shaft (11) secure fit and be positioned at preceding outer end cap (60) and back outer end cap (90) between; Described from gear (52) and driven shaft (12) secure fit and be positioned at preceding outer end cap (60) and back outer end cap (90) between; Described master gear (51) be meshing with each other from gear (52); It is characterized in that: described master gear (51) and between gear (52) and preceding outer end cap (60), end-face compensate dish (40) is arranged; And have on the described pump housing (80) and press path (30) in one; The interior end of path (30) of pressing is being communicated with compensating disc backside cavity (43), and the other end of interior pressure path (30) is being communicated with exhaust port (84).
2. a kind of interior pressure passageway compensation gear pump according to claim 1, it is characterized in that: described end-face compensate dish (40) has compensating disc active axis hole (411) and protecgulum active axis hole (61) and bonnet active axis hole (91) to be on the same axis; Described end-face compensate dish (40) has the driven axis hole of compensating disc (412) and driven axis hole of protecgulum (62) and the driven axis hole of bonnet (92) to be on the same axis; The two semicircle external frames (48) of the compensating disc of described end-face compensate dish (40) are slidingly matched with two semicircle orifices (85); Described end-face compensate dish (40) back side also has compensating disc backside cavity (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110462600.6A CN102536798B (en) | 2011-12-23 | 2011-12-23 | A kind of compensation gear pump for internal-pressure passage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110462600.6A CN102536798B (en) | 2011-12-23 | 2011-12-23 | A kind of compensation gear pump for internal-pressure passage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102536798A true CN102536798A (en) | 2012-07-04 |
| CN102536798B CN102536798B (en) | 2016-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110462600.6A Expired - Fee Related CN102536798B (en) | 2011-12-23 | 2011-12-23 | A kind of compensation gear pump for internal-pressure passage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102536798B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878073A (en) * | 2012-10-04 | 2013-01-16 | 张意立 | Gear pump |
| CN102926998A (en) * | 2012-10-28 | 2013-02-13 | 张意立 | Internal and external thread self-balancing gear pump |
| CN111173736A (en) * | 2019-08-30 | 2020-05-19 | 重庆红宇精密工业有限责任公司 | Gear pump with axial clearance compensation device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09209942A (en) * | 1996-02-07 | 1997-08-12 | Kobe Steel Ltd | Gear pump for melted resin |
| CN2538979Y (en) * | 2002-03-22 | 2003-03-05 | 朱林森 | Improved gear pump |
| CN1412439A (en) * | 2002-09-28 | 2003-04-23 | 宁波华液机器制造有限公司 | Internal gear pump |
| CN2547912Y (en) * | 2002-06-25 | 2003-04-30 | 程安强 | Hydraulic gear pump with axial sealing compensation device |
| CN2864158Y (en) * | 2005-11-09 | 2007-01-31 | 胡远祥 | Improved gear oil pump |
| CN102182677A (en) * | 2011-06-01 | 2011-09-14 | 张意立 | Novel four-line meshed internal-pressure sealed pump |
| CN202370840U (en) * | 2011-12-23 | 2012-08-08 | 张意立 | Internal pressure channel compensated gear pump |
-
2011
- 2011-12-23 CN CN201110462600.6A patent/CN102536798B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09209942A (en) * | 1996-02-07 | 1997-08-12 | Kobe Steel Ltd | Gear pump for melted resin |
| CN2538979Y (en) * | 2002-03-22 | 2003-03-05 | 朱林森 | Improved gear pump |
| CN2547912Y (en) * | 2002-06-25 | 2003-04-30 | 程安强 | Hydraulic gear pump with axial sealing compensation device |
| CN1412439A (en) * | 2002-09-28 | 2003-04-23 | 宁波华液机器制造有限公司 | Internal gear pump |
| CN2864158Y (en) * | 2005-11-09 | 2007-01-31 | 胡远祥 | Improved gear oil pump |
| CN102182677A (en) * | 2011-06-01 | 2011-09-14 | 张意立 | Novel four-line meshed internal-pressure sealed pump |
| CN202370840U (en) * | 2011-12-23 | 2012-08-08 | 张意立 | Internal pressure channel compensated gear pump |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878073A (en) * | 2012-10-04 | 2013-01-16 | 张意立 | Gear pump |
| CN102926998A (en) * | 2012-10-28 | 2013-02-13 | 张意立 | Internal and external thread self-balancing gear pump |
| CN102926998B (en) * | 2012-10-28 | 2016-04-27 | 张意立 | A kind of internal and external threads Equilibrium gear pump |
| CN111173736A (en) * | 2019-08-30 | 2020-05-19 | 重庆红宇精密工业有限责任公司 | Gear pump with axial clearance compensation device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102536798B (en) | 2016-09-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Sun Donglan Inventor after: Zhang Yili Inventor before: Zhang Yili |
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| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160810 Address after: 325000 Zhejiang Wenzhou city Longwan District Puzhou Street Bu Cun Pujiang Bei Lu faculty Dormitory Room 202 Applicant after: Wenzhou Zhangheng Technology Service Co., Ltd. Address before: 325000 Zhejiang Province, Lucheng District, South Gate Street, building, room No. 1, building, Room 303 Applicant before: Zhang Yili |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Shaofang Inventor before: Sun Donglan Inventor before: Zhang Yili |
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| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170330 Address after: 414000 Hunan city of Yueyang province tea village Kang District Economic and Technological Development Zone Xiang new flag group Patentee after: HUNAN BALING KILN AND FURNACE ENERGY SAVING CO., LTD. Address before: 325000 Zhejiang Wenzhou city Longwan District Puzhou Street Bu Cun Pujiang Bei Lu faculty Dormitory Room 202 Patentee before: Wenzhou Zhangheng Technology Service Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160921 Termination date: 20171223 |
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| CF01 | Termination of patent right due to non-payment of annual fee |