CN111140348A - Intermediate gear transmission device of sea water pump driven by diesel engine - Google Patents
Intermediate gear transmission device of sea water pump driven by diesel engine Download PDFInfo
- Publication number
- CN111140348A CN111140348A CN201910957473.3A CN201910957473A CN111140348A CN 111140348 A CN111140348 A CN 111140348A CN 201910957473 A CN201910957473 A CN 201910957473A CN 111140348 A CN111140348 A CN 111140348A
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- Prior art keywords
- intermediate gear
- cylinder
- hub
- section
- hole
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/06—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B67/00—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for
- F02B67/04—Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functions; Driving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
Abstract
In order to solve the problems that in the prior art, the distance between duplicate gears is small, and two seawater pumps are difficult to drive, the invention provides an intermediate gear transmission device for driving a seawater pump by a diesel engine, which comprises a supporting shaft connected with a machine body, an intermediate gear set arranged on the supporting shaft and a locking assembly used for fixing the intermediate gear set, wherein the intermediate gear set comprises an intermediate large gear and an intermediate small gear which are coaxially arranged in parallel. The middle big gear and the middle small gear are fixedly connected at two ends of the hub, and the distance between the middle big gear and the middle small gear can be adjusted by changing the thickness of the connecting flange on the hub, so that the installation positions of 2 seawater pumps can be properly adjusted.
Description
Technical Field
The invention belongs to the technical field of diesel engine manufacturing, and particularly relates to a middle gear transmission device of a seawater pump driven by a diesel engine.
Background
In some intensified diesel engines, two sea water pumps are generally symmetrically arranged in front of and behind the free end to enhance the cooling effect of the diesel engine. This requires a rational design of the intermediate gear drive connecting the crankshaft gear with the two sea water pump gears. Compared with diesel engine accessories such as an oil injection pump and the like, the power of the sea water pump is smaller, so that when the intermediate gear of the sea water pump is designed and driven, the design idea is mainly the advantages of compact design, simple structure, convenience in assembly and disassembly and convenience in maintenance.
The prior patent rarely mentions the intermediate gear transmission specially used for driving the sea water pump, and some typical and more perfectly designed engine intermediate gear structures are as patent 'an engine intermediate duplex helical gear transmission' (ZL201510457577.X), on one hand, the design structure is more complicated, the distance between the duplex gears is smaller, and the two sea water pumps are difficult to drive while being connected with the crankshaft gear.
Disclosure of Invention
The invention provides a diesel engine driven sea water pump intermediate gear transmission device, aiming at solving the problems that in the prior art, the distance between duplicate gears is small, and the two sea water pumps are difficult to drive.
In order to achieve the purpose, the invention adopts the specific scheme that: the utility model provides a diesel engine drive sea water pump intermediate gear transmission, is including the supporting axle that is used for being connected with the organism, sets up the middle gear train on the supporting axle and be used for fixed middle gear train's locking Assembly, wherein, middle gear train include coaxial parallel arrangement's middle gear wheel and middle pinion, its characterized in that still includes the wheel hub that is used for connecting middle gear train that coaxial setting is on the supporting axle.
The hub is a revolving body, and an inner hole of the hub is matched with the supporting shaft; the circumferential surface of the hub is provided with an annular bulge; the middle big gear and the middle small gear are detachably arranged on the two axial sides of the annular protrusion respectively.
The supporting shaft is composed of 4 sections of cylinders with different diameters; the 1 st section of cylinder is in clearance fit with the mounting hole in the machine body; the left end face of the 2 nd section of cylinder is attached to the end face of the machine body and fixedly connected with the machine body; the 3 rd section of cylinder is matched with the hub, and a stepped shaft transition is arranged between the 3 rd section of cylinder and the 2 nd section of cylinder; the excircle of the 4 th section of cylinder is provided with an external thread.
Wherein, the 2 nd section of cylinder is provided with a unthreaded hole III communicated with a lubricating fluid hole in the machine body; a light hole II is coaxially arranged in the supporting shaft and is communicated with the other end of the light hole III; a radial unthreaded hole I is formed in the 3 rd section of cylinder; and a lubricating liquid hole in the machine body, the unthreaded hole III, the unthreaded hole II and the unthreaded hole I form a lubricating channel.
Wherein, still be provided with the bush that is used for the abrasionproof to decrease between 3 rd section cylinder and the wheel hub.
Wherein, the locking assembly comprises a positioning ring and a locking piece; wherein, the locking part passes through threaded connection and passes through the fixed wheel hub of retaining ring with the tip of supporting shaft.
Has the advantages that: the middle big gear and the middle small gear are fixedly connected at two ends of the hub, and the distance between the middle big gear and the middle small gear can be adjusted by changing the thickness of the connecting flange on the hub, so that the installation positions of 2 seawater pumps can be properly adjusted.
The hub is arranged between the supporting shaft and the positioning ring and is in clearance fit with the supporting shaft and the positioning ring, the middle big gear and the middle small gear transmit power from a crankshaft to the sea water pump in the working process of the diesel engine, the middle big gear and the middle small gear are helical gears, and the hub is moved between the supporting shaft and the positioning ring in a string mode under the action of axial force, so that the string motion is controlled within a reasonable range, and a stable oil film is formed between the end surfaces on two sides of the hub and the supporting shaft and the positioning ring conveniently.
Under the action of the overturning moment, if the contact surface between the bearing bush and the supporting shaft is narrow, the middle large gear and the middle small gear can shake greatly in the working process, so that oil film formation between the bearing bush and the supporting shaft is influenced, dry friction can be generated between working surfaces, and the reliability of the middle gear transmission device is influenced. In the scheme of the invention, the middle big gear and the middle small gear are connected by the hub, so that the width design of the bearing bush between the hub and the supporting shaft is maximized, the sufficient contact area between the bearing bush and the supporting shaft is ensured, the large shaking generated in the working process of the two middle gears is avoided, and the reliability of the middle gear transmission device is improved.
According to the working characteristics of the intermediate gear transmission device for driving the seawater pump, the hub, the supporting shaft and the positioning ring belong to wearing parts, and after the diesel engine stably runs for a certain period for a long time, the parts need to be periodically overhauled, the abrasion loss of each part is measured, and the maintenance is convenient. The hub, the middle big gear and the middle small gear are fixedly connected into a whole, when the hub is disassembled, the middle gear and the hub can be disassembled only by disassembling the locking piece and the positioning ring, and then all parts including the supporting shaft can be disassembled only by disassembling the bolt I between the supporting shaft and the machine body, so that the hub is convenient to disassemble and has good maintainability.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a support shaft; 2. a body; 3. a bolt I; 4. a hub; 5. a middle bull gear; 6. an intermediate pinion gear; 7. a gasket I; 8. a bolt II; 9. a positioning ring; 10. a locking member; 11. a bushing; 12. A unthreaded hole I; 13. a unthreaded hole II; 14. a light hole III; 15. an O-shaped ring; 16. and a light hole IV.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1, the intermediate gear transmission device of the seawater pump driven by the diesel engine comprises a supporting shaft 1, a hub 4, an intermediate large gear 5, an intermediate small gear 6, a positioning ring 9 and a locking piece 10.
The supporting shaft 1 is a revolving body, and the excircle of the supporting shaft is composed of 4 sections of cylinders with different diameters, namely 1, 2, 3 and 4 from left to right; the 1 st section of cylinder extends into the machine body 2 and is in clearance fit with a mounting hole in the machine body 2, and the center of the left end face of the cylinder is provided with 1 longer unthreaded hole II 13; the diameter of the 2 nd section of cylinder is maximum, the left end face is attached to the end face of the machine body 2 and fixedly connected with the machine body 2 through 5 bolts I, 1 inclined unthreaded hole III 14 is formed in the left end face, one end of the unthreaded hole III 14 is communicated with an unthreaded hole II 13 in the center of the 1 st section of cylinder, and the other end of the unthreaded hole III is communicated with an unthreaded hole IV 16 in the machine body 2; 1 small stepped shaft transition is arranged between the 3 rd section of cylinder and the 2 nd section of cylinder, and the section of cylinder is provided with 2 unthreaded holes I12 which are communicated with an unthreaded hole II 13 at the center of the 1 st section of cylinder; the excircle of the 4 th section of cylinder is provided with an external thread.
Wheel hub 4 also be a solid of revolution, the excircle from the left hand right side by a, b, c, d totally 4 sections of different cylinders constitute, the first section cylinder left side terminal surface and supporting axle 1 excircle on 2 nd section cylinder right side step face clearance fit, the second section cylinder passes through with the first section cylinder conical surface, 6 through-holes of the first section cylinder terminal surface center equipartition, a bush 11 is inlayed to 4 hole interference of wheel hub.
The middle big gear wheel 5 center hole and the hub 4 excircle the b-th cylinder face clearance fit, the right side terminal surface is laminated with the hub 4 c-th section cylinder left side terminal surface, 6 threaded through holes are evenly distributed on the terminal surface, and align with 6 through holes on the hub 4.
6 centre holes of middle pinion and 4 excircle d section cylinder clearance fit of wheel hub, the left end face laminates with 4 c section cylinder right side end face of wheel hub, 6 through-holes of equipartition on the terminal surface align with 6 through-holes and screw thread through-hole on wheel hub 4, the middle gear wheel 5 respectively to link firmly middle gear wheel 5, middle pinion 6 and wheel hub 4 through 6 bolt II 8 and packing ring I7.
The positioning ring 9 is of an annular structure, the end face of the left side is attached to the end face of the right side of the 3 rd section of cylinder of the supporting shaft 1 and is in clearance fit with the end face of the rightmost side of the hub 4. The locking part 10 is a 1-piece revolving body, is in clearance fit with an inner hole of the positioning ring 9, is provided with a thread through hole at the center, is spirally matched with an outer thread on a cylinder at the 4 th end of the excircle of the supporting shaft 1, and is attached to the end face at the right side of the positioning ring 9 by the left end face, so that the positioning ring 9 is fixedly connected with the supporting shaft 1.
The lubrication principle of each part of the invention is as follows: the pressure engine oil flows out from the unthreaded hole IV 16 on the machine body 2, flows through the unthreaded hole III 14 and the unthreaded hole IV 16, enters the unthreaded hole II 13 in the middle of the supporting shaft 1, then passes through the 2 radial unthreaded holes I12 of the supporting shaft 1, enters the inner hole of the bush on the hub 2, and lubricates the working surfaces of the bush 11 and the supporting shaft 1. The engine oil flowing out from the two ends of the inner hole of the bush respectively enters the clearance fit surfaces of the hub 4 and the supporting shaft 1, and the hub 4 and the positioning ring 9, and strong lubrication is realized when the hub 4 axially moves.
It is to be understood that: the directional descriptions described herein are in reference to fig. 1.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily change or replace the present invention within the technical scope of the present invention. Therefore, the protection scope of the present invention is subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a diesel engine drive sea water pump intermediate gear transmission, is including being used for the supporting axle (1) of being connected with organism (2), setting up the intermediate gear group on supporting axle (1) and being used for the locking Assembly of fixed intermediate gear group, wherein, intermediate gear group including coaxial parallel arrangement intermediate gear wheel (5) and intermediate pinion (6), characterized by still includes hub (4) that are used for connecting the intermediate gear group of coaxial setting on supporting axle (1).
2. The intermediate gear transmission device of the sea water pump driven by the diesel engine as claimed in claim 1, characterized in that the hub (4) is a solid of revolution and the inner hole of the hub (4) is matched with the supporting shaft (1); the circumferential surface of the hub (4) is provided with an annular bulge; the middle big gear (5) and the middle small gear (6) are detachably arranged on the two axial sides of the annular protrusion respectively.
3. A diesel driven sea water pump intermediate gear transmission as claimed in claim 1, characterized in that the support shaft (1) is formed by 4 sections of cylinders with different diameters; the 1 st section of cylinder is in clearance fit with a mounting hole in the machine body (2); the left end face of the 2 nd section of cylinder is attached to the end face of the machine body (2) and is fixedly connected with the machine body (2); the 3 rd section of cylinder is matched with the hub (4), and a stepped shaft transition is arranged between the 3 rd section of cylinder and the 2 nd section of cylinder; the excircle of the 4 th section of cylinder is provided with an external thread.
4. The intermediate gear transmission device of the seawater pump driven by the diesel engine as claimed in claim 3, wherein the 2 nd section of cylinder is provided with a unthreaded hole III (14) communicated with a lubricating fluid hole in the machine body (2); a light hole II (13) is coaxially arranged in the supporting shaft (1), and the light hole II (13) is communicated with the other end of the light hole III (14); a radial unthreaded hole I (12) is formed in the 3 rd section of cylinder; and a lubricating channel is formed by the lubricating liquid hole in the machine body (2), the unthreaded hole III (14), the unthreaded hole II (13) and the unthreaded hole I (12).
5. A diesel driven intermediate gear transmission of a sea water pump according to claim 3, characterized in that a lining (11) for preventing wear is further provided between the 3 rd section cylinder and the hub (4).
6. A diesel driven sea water pump intermediate gear transmission as claimed in claim 1, characterized in that the locking assembly comprises a positioning ring (9) and a locking member (10);
the locking piece (10) is connected with the end part of the supporting shaft (1) through threads and fixes the hub (4) through the positioning ring (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910957473.3A CN111140348A (en) | 2019-10-09 | 2019-10-09 | Intermediate gear transmission device of sea water pump driven by diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910957473.3A CN111140348A (en) | 2019-10-09 | 2019-10-09 | Intermediate gear transmission device of sea water pump driven by diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111140348A true CN111140348A (en) | 2020-05-12 |
Family
ID=70516840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910957473.3A Pending CN111140348A (en) | 2019-10-09 | 2019-10-09 | Intermediate gear transmission device of sea water pump driven by diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111140348A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2282039A1 (en) * | 1974-08-17 | 1976-03-12 | Motoren Werke Mannheim Ag | Crankshaft-driven gear oil pump - arranged on partition inside crank case and has inlet duct with sieve near sump bottom |
| JPS62179323U (en) * | 1986-05-02 | 1987-11-14 | ||
| JPH0319162U (en) * | 1989-07-07 | 1991-02-25 | ||
| US6006715A (en) * | 1997-01-31 | 1999-12-28 | Honda Giken Kogyo Kabushiki Kaisha | Pump drive structure for a two-cycle engine |
| CN2649781Y (en) * | 2003-05-14 | 2004-10-20 | 浙江星月柴油机有限公司 | Two-cylinder diesel engine with sufficiently-lubricating drive gear cluster |
| CN203394633U (en) * | 2013-07-22 | 2014-01-15 | 第一拖拉机股份有限公司 | Preposition air pump drive device of engine |
| CN104989808A (en) * | 2015-07-30 | 2015-10-21 | 河南柴油机重工有限责任公司 | An engine intermediate dual bevel gear transmission device |
| CN106640249A (en) * | 2016-11-17 | 2017-05-10 | 河南柴油机重工有限责任公司 | Engine camshaft duplex bevel gear transmission device |
| CN210948898U (en) * | 2019-10-09 | 2020-07-07 | 河南柴油机重工有限责任公司 | Intermediate gear transmission device of seawater pump driven by diesel engine |
-
2019
- 2019-10-09 CN CN201910957473.3A patent/CN111140348A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2282039A1 (en) * | 1974-08-17 | 1976-03-12 | Motoren Werke Mannheim Ag | Crankshaft-driven gear oil pump - arranged on partition inside crank case and has inlet duct with sieve near sump bottom |
| JPS62179323U (en) * | 1986-05-02 | 1987-11-14 | ||
| JPH0319162U (en) * | 1989-07-07 | 1991-02-25 | ||
| US6006715A (en) * | 1997-01-31 | 1999-12-28 | Honda Giken Kogyo Kabushiki Kaisha | Pump drive structure for a two-cycle engine |
| CN2649781Y (en) * | 2003-05-14 | 2004-10-20 | 浙江星月柴油机有限公司 | Two-cylinder diesel engine with sufficiently-lubricating drive gear cluster |
| CN203394633U (en) * | 2013-07-22 | 2014-01-15 | 第一拖拉机股份有限公司 | Preposition air pump drive device of engine |
| CN104989808A (en) * | 2015-07-30 | 2015-10-21 | 河南柴油机重工有限责任公司 | An engine intermediate dual bevel gear transmission device |
| CN106640249A (en) * | 2016-11-17 | 2017-05-10 | 河南柴油机重工有限责任公司 | Engine camshaft duplex bevel gear transmission device |
| CN210948898U (en) * | 2019-10-09 | 2020-07-07 | 河南柴油机重工有限责任公司 | Intermediate gear transmission device of seawater pump driven by diesel engine |
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