CN103437927A - Cross elastic connection device of high-pressure pump shaft and transmission shaft of engine - Google Patents
Cross elastic connection device of high-pressure pump shaft and transmission shaft of engine Download PDFInfo
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- CN103437927A CN103437927A CN201310384501XA CN201310384501A CN103437927A CN 103437927 A CN103437927 A CN 103437927A CN 201310384501X A CN201310384501X A CN 201310384501XA CN 201310384501 A CN201310384501 A CN 201310384501A CN 103437927 A CN103437927 A CN 103437927A
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- pressure pump
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Abstract
The invention relates to a cross elastic connection device of a high-pressure pump shaft and a transmission shaft of an engine. The cross elastic connection device comprises the high-pressure pump shaft, a high-pressure pump shaft gland nut, a high-pressure pump shaft cross raised claw, a cross connecting block, a transmission shaft cross raised claw, a transmission shaft gland nut and the transmission shaft. An inner conical surface is arranged in the high-pressure pump shaft cross raised claw, a corresponding outer conical surface is arranged outside the high-pressure pump shaft, and the inner conical surface of the high-pressure pump shaft cross raised claw and the outer conical surface of the high-pressure pump shaft are attached to each other and compressed through the high-pressure pump shaft gland nut. An inner conical surface is arranged in the transmission shaft cross raised claw, a corresponding outer conical surface is arranged outside the transmission shaft, and the inner conical surface of the transmission shaft cross raised claw and the outer conical surface of the transmission shaft are attached to each other and compressed through the transmission shaft gland nut. The cross elastic connection device has the advantages of being simple in design, rapid in processing, small in error generated in a processing process, convenient to install and low in rate of test faults, saves test cost, and improves operation reliability and repairability of the single-cylinder engine used for a test.
Description
Technical field
The invention belongs to the diesel engine test technical field, be specifically related to a kind of engine high pressure pump shaft and drive shaft connection arrangement.
Background technique
With the continuous lifting of engine power density and the increasingly stringent of Abgasgesetz, the high-pressure common rail oil supply system, by feat of the flexible adjustable characteristics of injection timing, circulating fuel injection quantity, circulation oil spout number of times, injection pressure and injection rate curve, progressively becomes the first-selected oil supply system of diesel engine.The high pressure oil pump effect is that low pressure oil is created as to high pressure oil, in the high-pressure common rail oil supply system, plays a part very importantly how the power of transmission system to be exported to high pressure oil pump and also become an important problem.
The Patent Application Publication that application number is 201210078033.9 a kind of high pressure oil pump transmission device and assembly method thereof, the high pressure oil pump transmission device comprises driving gear set, also comprise the splined shaft be fixedly connected with the oil pump gear of described driving gear set, and the external splines of being located at described splined shaft inside and meshing with described splined shaft, this external splines is fixedly connected with described high pressure oil pump.Splined shaft is fixedly connected with the oil pump gear of driving gear set, and both do not have relative displacement, and external splines and splined shaft engagement, can guarantee external splines and splined shaft synchronous rotary.The effective coaxality of control oil pump gear and high pressure oil pump.The transmission that matches with external splines by splined shaft, with respect to by the nut transmission, can transmit larger moment of torsion, thereby effectively improve the reliability of high pressure oil pump transmission device.But this connection set processing cost is high, complex structure, not being adapted at testing is to adopt on the purpose single-cylinder engine.
Summary of the invention
The present invention is directed to the technical problem characteristics that the linkage structure between single cylinder diesel transmission shaft and high pressure pump shaft is complicated, processing cost is high for test, proposed a kind of engine high pressure pump shaft and transmission shaft cross elastic connecting device.
Technological scheme of the present invention:
A kind of engine high pressure pump shaft and transmission shaft cross elastic connecting device, comprise high pressure pump shaft 1, high-pressure service pump shaft compression nut 2, high-pressure service pump axial cross dog 3, cross contiguous block 4, transmission shaft cross dog 5, transmission shaft pressing jack panel 6, transmission shaft 8, it is characterized in that: high-pressure service pump axial cross dog 3 inside arrange inner conical surface, the corresponding male cone (strobilus masculinus) of high pressure pump shaft 1 outer installment, the inner conical surface of high-pressure service pump axial cross dog 3 and the male cone (strobilus masculinus) of high pressure pump shaft 1 fit, and by high-pressure service pump shaft compression nut 2, are compressed; Transmission shaft cross dog 5 inside arrange inner conical surface, the corresponding male cone (strobilus masculinus) of transmission shaft 8 outer installment, and the male cone (strobilus masculinus) laminating of the inner conical surface of transmission shaft cross dog 5 and transmission shaft 8, compressed by transmission shaft pressing jack panel 6; The front end of high-pressure service pump axial cross dog 3 and transmission shaft cross dog 5 respectively has four transmission boss 9, cross contiguous block 4 inside arrange the transmission groove 10 of four perforations, and the transmission boss 9 of high-pressure service pump axial cross dog 3 and transmission shaft cross dog 5 inserts respectively transmission groove 10 from cross contiguous block both sides.
For prevent that processing error from causing cross contiguous block 4 to vibrate when system turns round, between cross contiguous block 4 and transmission shaft cross dog 5, installation shaft is to fender plate 7.Axially the thickness of fender plate 7 is determined according to the distance between high-pressure service pump axial cross dog 3 and transmission shaft cross dog 5 and the difference of cross contiguous block 4 length.
The platform 11 that caves in of installing for the transmission boss 9 of high-pressure service pump axial cross dog 3 and transmission shaft cross dog 5 preferably is set at cross contiguous block 4 two ends, adjust plane as radial error, be conducive to guarantee the coaxality of cross contiguous block 4, high-pressure service pump axial cross dog 3 and transmission shaft cross dog 5 simultaneously.
For preventing that connection set from coming off at running mesohigh pump shaft gland nut 2 and transmission shaft pressing jack panel 6, cause Joint failure, to tester, personal safety causes damage, preferably tightening direction and high pressure pump shaft 1 and transmission shaft 8 direction of rotation of high-pressure service pump shaft compression nut 2 and transmission shaft pressing jack panel 6.
For strengthening the join strength of high-pressure service pump axial cross dog 3 and high pressure pump shaft, preferably at the inner conical surface of high-pressure service pump axial cross dog 3 and the male cone (strobilus masculinus) corresponding site of high pressure pump shaft 1, keyway is set, high-pressure service pump axial cross dog 3 is connected by woodruff key with high pressure pump shaft 1.
For strengthening the join strength of transmission shaft cross dog 5 and transmission shaft 8, preferably inner conical surface and the transmission shaft 8 male cone (strobilus masculinus) corresponding sites at transmission shaft cross dog 5 arrange keyway, and transmission shaft cross dog 5 is connected by woodruff key with transmission shaft 8.
Beneficial effect of the present invention: the probability that simplicity of design, processing are quick, produce error in course of working is little, easy for installation, the testing failure occurrence probability is low, save the characteristics such as experimentation cost, has improved operating reliability and the recoverability of test with single-cylinder engine.
The accompanying drawing explanation
Fig. 1 is the cross elasticity coupling shaft schematic diagram after installing
Fig. 2 is cross contiguous block plan view
Fig. 3 is cross contiguous block sectional view
Fig. 4 is cross dog plan view
Fig. 5 is cross dog side view
1, high pressure pump shaft 2, high-pressure service pump shaft compression nut 3, high-pressure service pump axial cross dog 4, cross contiguous block
5, transmission shaft cross dog 6, transmission shaft pressing jack panel 7, axial fender plate 8, transmission shaft
9, transmission boss 10, transmission groove 11, platform caves in
Embodiment
According to high pressure co-rail system mesohigh oil pump shaft nose cone face size, the inner profile of high-pressure service pump axial cross dog is processed, guarantee in course of working that the laminating degree of two conical surfaces is greater than 85%;
The live axle cross dog and the live axle that process are installed, in installation process, will be carried out conical surface smear test, guaranteed the laminating degree of two conical surfaces.Between the conical surface, without location, with the live axle hold-down bolt, the two is compressed, live axle cross dog and live axle are without the phase place requirement; The high pressure oil pump axial cross dog and the high pressure oil pump shaft that process are installed, in installation process, will be carried out conical surface smear test, guaranteed the laminating degree of two conical surfaces.Between the conical surface, without location, with high pressure oil pump shaft compression bolt, the two is compressed, high pressure oil pump axial cross dog and live axle are without the phase place requirement; After installing two dogs, utilize the cross contiguous block that two dogs are coaxially confirmed and are connected; Rock the cross contiguous block, the cross recess of guaranteeing two cross dog and cross contiguous block inside carries out locked to the high-pressure service pump position after certain axially and radially transmission is arranged; Utilize " shaking rod " manually to drag single-cylinder engine, observe the high pressure pump shaft whether reliable with being connected of transmission live axle, have or not " jumping tooth " phenomenon, complete the installation of cross elasticity coupling shaft device to this;
The running of cross elasticity coupling shaft is reliable, and polarization is good, can guarantee the coaxality of high pressure oil pump shaft and live axle, even if there is machining error also can realize the correction to error by the intensity difference cross contiguous block and dog, serious forgiveness is high, reliable.Even cross elasticity coupling shaft breaks down, only need again process the cross contiguous block, just can realize very soon multiple dress, course of working is simple, quick.
Claims (6)
1. an engine high pressure pump shaft and transmission shaft cross elastic connecting device, comprise high pressure pump shaft (1), high-pressure service pump shaft compression nut (2), high-pressure service pump axial cross dog (3), cross contiguous block (4), transmission shaft cross dog (5), transmission shaft pressing jack panel (6), transmission shaft (8), it is characterized in that: high-pressure service pump axial cross dog (3) inside arranges inner conical surface, the corresponding male cone (strobilus masculinus) of high pressure pump shaft (1) outer installment, the male cone (strobilus masculinus) of the inner conical surface of high-pressure service pump axial cross dog (3) and high pressure pump shaft (1) fits, and by high-pressure service pump shaft compression nut (2), is compressed; Transmission shaft cross dog (5) inside arranges inner conical surface, the corresponding male cone (strobilus masculinus) of transmission shaft (8) outer installment, the male cone (strobilus masculinus) laminating of the inner conical surface of transmission shaft cross dog (5) and transmission shaft (8), compressed by transmission shaft pressing jack panel (6); The front end of high-pressure service pump axial cross dog (3) and transmission shaft cross dog (5) respectively has four transmission boss (9), cross contiguous block (4) inside arranges the transmission groove (10) of four perforations, and the transmission boss (9) of high-pressure service pump axial cross dog (3) and transmission shaft cross dog (5) inserts respectively transmission groove (10) from cross contiguous block both sides.
2. engine high pressure pump shaft according to claim 1 and transmission shaft cross elastic connecting device, it is characterized in that: between cross contiguous block (4) and transmission shaft cross dog (5) installation shaft to fender plate (7), axially the thickness of fender plate (7) equal between high-pressure service pump axial cross dog (3) and transmission shaft cross dog (5) apart from the difference with cross contiguous block (4) length.
3. engine high pressure pump shaft according to claim 1 and transmission shaft cross elastic connecting device is characterized in that: cross contiguous block (4) two ends arrange the platform that caves in (11) for transmission boss (9) installation of high-pressure service pump axial cross dog (3) and transmission shaft cross dog (5).
4. engine high pressure pump shaft according to claim 1 and transmission shaft cross elastic connecting device, is characterized in that: the tightening direction of high-pressure service pump shaft compression nut (2) and transmission shaft pressing jack panel (6) and high pressure pump shaft (1) and transmission shaft (8) direction of rotation.
5. engine high pressure pump shaft according to claim 1 and transmission shaft cross elastic connecting device, it is characterized in that: the male cone (strobilus masculinus) corresponding site of the inner conical surface of high-pressure service pump axial cross dog (3) and high pressure pump shaft (1) arranges keyway, and high-pressure service pump axial cross dog (3) is connected by woodruff key with high pressure pump shaft (1).
6. engine high pressure pump shaft according to claim 1 and transmission shaft cross elastic connecting device, it is characterized in that: the inner conical surface of transmission shaft cross dog (5) and transmission shaft (8) male cone (strobilus masculinus) corresponding site arrange keyway, and transmission shaft cross dog (5) is connected by woodruff key with transmission shaft (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310384501.XA CN103437927B (en) | 2013-08-28 | 2013-08-28 | A kind of engine high pressure pump shaft and transmission shaft cross elastic connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310384501.XA CN103437927B (en) | 2013-08-28 | 2013-08-28 | A kind of engine high pressure pump shaft and transmission shaft cross elastic connecting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103437927A true CN103437927A (en) | 2013-12-11 |
| CN103437927B CN103437927B (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310384501.XA Active CN103437927B (en) | 2013-08-28 | 2013-08-28 | A kind of engine high pressure pump shaft and transmission shaft cross elastic connecting device |
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| CN (1) | CN103437927B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110427713A (en) * | 2019-08-07 | 2019-11-08 | 中国北方发动机研究所(天津) | A kind of matching process of engine high-pressure pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4063433A (en) * | 1975-02-05 | 1977-12-20 | Societe Generale De Macanique Et De Metallurgie | Elastic rotational couplings |
| DE202004010920U1 (en) * | 2004-07-12 | 2004-11-18 | Ktr Kupplungstechnik Gmbh | Tooth, ring gear and double tooth element for use in a clutch |
| CN2789501Y (en) * | 2005-04-30 | 2006-06-21 | 邯郸钢铁股份有限公司 | Single-engaging coupling |
| CN101968005A (en) * | 2009-07-28 | 2011-02-09 | 广西玉柴机器股份有限公司 | Large-torque driving device of engine |
| CN202301417U (en) * | 2011-10-21 | 2012-07-04 | 江苏凯宇汽车电器有限公司 | Four-claw output shaft |
| JP2012215198A (en) * | 2011-03-31 | 2012-11-08 | Showa Corp | Rotary structure |
-
2013
- 2013-08-28 CN CN201310384501.XA patent/CN103437927B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4063433A (en) * | 1975-02-05 | 1977-12-20 | Societe Generale De Macanique Et De Metallurgie | Elastic rotational couplings |
| DE202004010920U1 (en) * | 2004-07-12 | 2004-11-18 | Ktr Kupplungstechnik Gmbh | Tooth, ring gear and double tooth element for use in a clutch |
| CN2789501Y (en) * | 2005-04-30 | 2006-06-21 | 邯郸钢铁股份有限公司 | Single-engaging coupling |
| CN101968005A (en) * | 2009-07-28 | 2011-02-09 | 广西玉柴机器股份有限公司 | Large-torque driving device of engine |
| JP2012215198A (en) * | 2011-03-31 | 2012-11-08 | Showa Corp | Rotary structure |
| CN202301417U (en) * | 2011-10-21 | 2012-07-04 | 江苏凯宇汽车电器有限公司 | Four-claw output shaft |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110427713A (en) * | 2019-08-07 | 2019-11-08 | 中国北方发动机研究所(天津) | A kind of matching process of engine high-pressure pump |
| CN110427713B (en) * | 2019-08-07 | 2023-04-07 | 中国北方发动机研究所(天津) | Matching method of high-pressure pump for engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103437927B (en) | 2015-09-23 |
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