CN216406955U - Onboard cooling water pump of marine diesel engine - Google Patents
Onboard cooling water pump of marine diesel engine Download PDFInfo
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- CN216406955U CN216406955U CN202123361290.7U CN202123361290U CN216406955U CN 216406955 U CN216406955 U CN 216406955U CN 202123361290 U CN202123361290 U CN 202123361290U CN 216406955 U CN216406955 U CN 216406955U
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- water pump
- cooling water
- diesel engine
- intermediate shaft
- bearing
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Abstract
The utility model discloses an onboard cooling water pump of a marine diesel engine, which belongs to the technical field of marine diesel engines and comprises an intermediate shaft, a cooling water pump body, a bearing shell and a gearbox shell; a cooling water pump impeller, a bearing and a driving gear which are connected with the intermediate shaft are respectively arranged in the cooling water pump body, the bearing shell and the gear box shell; the gearbox shell is connected with a diesel engine, and a driving gear meshed with the driving gear is installed on the diesel engine. The cooling water pump is integrally installed on the diesel engine, the driving of the intermediate shaft is achieved through the meshing of the driving gear and the driving gear, the driving of the cooling water pump impeller is achieved through the supporting installation of the bearing on the intermediate shaft, and therefore the high seawater lift is achieved, seawater heat exchange is achieved, cooling and heat dissipation of the diesel engine are effectively achieved, and the requirement for thermal balance of the diesel engine is met. The integral structure is simple, the space occupation is small, and the limitation of self-installation of the cooling water pump is effectively avoided; and the transmission is accurate, the concentricity is high, and the stability and the transmission efficiency of the transmission are ensured.
Description
Technical Field
The utility model belongs to the technical field of marine diesel engines, and particularly relates to an onboard cooling water pump of a marine diesel engine.
Background
The marine diesel engine is a power mechanism for marine operation, and the stable operation of the diesel engine is a necessary condition for ensuring the normal operation of the marine. The marine diesel engine is usually equipped with a cooling water pump to well cool a cooling system of the marine diesel engine, and the temperature of the cooling system of the diesel engine is prevented from being too high, so that the normal operation of the marine diesel engine is ensured.
Traditional cooling water pump and diesel engine are split type setting, adopt the drive belt to realize the operation of diesel engine drive cooling water pump, and the stability of drive belt transmission is relatively poor, and split type setting, and it is great to fill a percentage, installs loaded down with trivial details, installation technical requirement by oneself.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides an onboard cooling water pump of a marine diesel engine, wherein the cooling water pump and the diesel engine are integrated into a whole and are in meshed transmission through gears, so that the transmission stability and the higher transmission efficiency are ensured; and the space is small, and the limitation of self-installation is effectively avoided.
The utility model is realized by the following technical scheme:
an onboard cooling water pump of a marine diesel engine comprises an intermediate shaft, and a cooling water pump body, a bearing shell and a gearbox shell which are sequentially connected; a cooling water pump impeller, a bearing and a driving gear which are connected with the intermediate shaft are respectively arranged in the cooling water pump body, the bearing shell and the gear box shell; the gearbox shell is connected with the diesel engine, and a driving gear meshed with the driving gear is installed on the diesel engine.
The utility model is further improved in that the impeller of the cooling water pump is made of ethylene propylene diene monomer and is installed in interference fit with the inner cavity of the pump body of the cooling water pump.
The utility model is further improved in that a water seal and an oil seal are sleeved on the intermediate shaft; the water seal is attached to one side, close to the bearing shell, of the cooling water pump body, and the oil seal is attached to one side, far away from the gearbox shell, of the bearing shell.
The utility model further improves that the intermediate shaft is also sleeved with a thrust plate and a spring which are jointed with the water seal; the spring is supported between the thrust plate and the oil seal.
The utility model is further improved in that a main bearing arranged close to one side of the pump body of the cooling water pump and an auxiliary bearing arranged close to one side of the gear box shell are arranged in the bearing shell; and a clamp spring for attaching and positioning the main bearing is arranged on the intermediate shaft.
The utility model is further improved in that the driving gear and the intermediate shaft are positioned and installed through splines; the thrust plate is used for pressing and positioning the driving gear.
According to the technical scheme, the utility model has the beneficial effects that:
the integral structure is simple, the use is convenient, the space occupation is small, and the limitation of self-installation of the cooling water pump is effectively avoided; and the transmission is accurate, the concentricity is high, the transmission of a transmission belt is avoided, the transmission belt is aged and broken to cause overheating damage of the diesel engine, and the transmission stability and the transmission efficiency are ensured. The cooling water pump is integrally installed on the diesel engine, the diesel engine is meshed with the driving gear through the driving gear to drive the intermediate shaft, and the impeller of the cooling water pump is driven through the supporting installation of the intermediate shaft by the bearing, so that the high seawater lift is realized, seawater is subjected to heat exchange, the cooling and heat dissipation of the diesel engine are effectively realized, the heat balance requirement of the diesel engine is met, and the operation reliability of the diesel engine is ensured; and the temperature of the engine room can be effectively reduced, and the operation in the engine room is facilitated.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Fig. 2 is an exploded view of an embodiment of the present invention.
Fig. 3 is a front view of an embodiment of the present invention.
FIG. 4 is a top view of an embodiment of the present invention.
In the drawings: 1. pump body apron, 2, cooling water pump impeller, 3, the cooling water pump body, 31, export, 32, import, 4, water seal, 5, thrust plate, 6, spring, 7, first positioning bolt, 8, oil blanket, 9, auxiliary bearing, 10, second positioning bolt, 11, the main bearing, 12, jump ring, 13, bearing housing, 14, jackshaft, 15, drive gear, 16, thrust plate, 17, third positioning bolt, 18, gearbox housing, 19, the end cover.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present embodiment, and it is apparent that the embodiments described below are only a part of embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.
As shown in fig. 1-4, the utility model discloses an onboard cooling water pump of a marine diesel engine, which comprises an intermediate shaft 14, and a cooling water pump body 3, a bearing shell 13 and a gear box shell 18 which are sequentially connected from left to right, wherein the cooling water pump body 3 and the bearing shell 13 are connected and installed through a first positioning bolt 7, the bearing shell 13 and the gear box shell 18 are connected and installed through a second positioning bolt 10, a pump body cover plate 1 is arranged on the left side of the cooling water pump body 3, and an end cover 19 is arranged on the right side of the gear box shell 18 to form a water cavity and an oil cavity. A cooling water pump impeller 2, a bearing and a driving gear 15 which are connected with an intermediate shaft 14 are respectively arranged in the cooling water pump body 3, the bearing shell 13 and the gearbox shell 18; the gear box shell 18 is connected with the diesel engine, a driving gear meshed with the driving gear 15 is installed on the diesel engine, and corresponding communicating ports are respectively formed in the gear box shell 18 and the diesel engine and used for meshing the driving gear with the driving gear 15.
A cooling water pump is integrally installed on the diesel engine, the diesel engine is meshed with a driving gear 15 through a driving gear to drive the intermediate shaft 14, the cooling water pump impeller 2 is driven through the supporting installation of the bearing on the intermediate shaft 14, so that seawater is sucked from an inlet 32 of a cooling water pump body 3 and is discharged from an outlet 31, a high seawater lift is provided, the seawater and an internal circulation cooling pipeline of the diesel engine exchange heat through a seawater and fresh water heat exchanger, the cooling and heat dissipation of the diesel engine are effectively realized, the thermal balance requirement of the diesel engine is met, and the operation reliability of the diesel engine is ensured; and the temperature of the engine room can be effectively reduced, and the operation in the engine room is facilitated. The integral structure is simple, the use is convenient, the space occupation is small, and the limitation of self-installation of the cooling water pump is effectively avoided; and the transmission is accurate, the concentricity is high, the transmission of a transmission belt is avoided, the transmission belt is aged and broken to cause overheating damage of the diesel engine, and the transmission stability and the transmission efficiency are ensured.
The cooling water pump impeller 2 is made of ethylene propylene diene monomer rubber, so that good wear resistance and corrosion resistance can be guaranteed; the cooling water pump impeller 2 and the inner cavity of the cooling water pump body 3 are installed in an interference fit manner; the cooling water pump impeller 2 is provided with 12 fins, the cooling water pump body 3 is made of copper-zinc alloy H59-GB/T5231, the inner cavity of the cooling water pump impeller is subjected to finish milling, and the surface roughness is Rz 25. The reliability of the cooling water pump impeller 2 can be effectively improved, the contact tightness between the cooling water pump body 3 and the cooling water pump impeller 2 is increased, and the running performance is improved.
Wherein, the installation face of the gearbox shell 18 and the diesel engine adopts finish machining, the surface roughness is guaranteed to be Rz16 and the flatness is guaranteed to be 0.1mm, and sealing glue letai 5900 is coated between the installation face of the gearbox shell 18 and the installation face of the diesel engine for sealing.
As shown in fig. 1-2, a water seal 4 and an oil seal 8 are sleeved on the intermediate shaft 14; the water seal 4 is attached to the right side of the cooling water pump body 3, and the oil seal 8 is attached to the left side of the bearing shell 13. The cooling water pump body 3 is sealed through the water seal 4, so that the seawater is prevented from overflowing; the cavity communicated with the gear box shell 18 and the bearing shell 13 is sealed through the oil seal 8, so that lubricating oil is prevented from overflowing, and the oil seal 8 is arranged far away from the gear box shell 18, so that the possibility of failure of the oil seal 8 can be reduced; and the driving gear of the diesel engine is meshed with the driving gear 15, and thrown lubricating oil is in the gear box shell 18 and the bearing shell 13, so that the bearings in the bearing shell 13 are well lubricated, and the stability and the reliability of operation are ensured.
As shown in fig. 1-2, the intermediate shaft 14 is further sleeved with a thrust plate 5 and a spring 6 which are attached to the water seal 4; the spring 6 is supported between the thrust plate 5 and the oil seal 8. The thrust plate 5 is pressed on the water seal 4 through the spring 6, so that the water seal 4 and the cooling water pump body 3 can be always attached to each other even if the water seal 4 is abraded, a sealing effect is achieved, and the use reliability is guaranteed.
As shown in fig. 1-2, a main bearing 11 is arranged at the right side in a bearing shell 13, and an auxiliary bearing 9 is arranged at the left side; and a clamp spring 12 for attaching and positioning the main bearing 11 is arranged on the intermediate shaft 14. The intermediate shaft 14 is supported and mounted through the main bearing 11 and the auxiliary bearing 9, so that the rotation stability of the intermediate shaft 14 is ensured; the clamp spring 12 can accurately position and install the main bearing 11, and the use convenience and reliability are guaranteed.
As shown in fig. 1-2, the driving gear 15 and the intermediate shaft 14 are fixed and installed through splines; the transmission mechanism further comprises a thrust plate 16 which is connected and installed with the right end face of the intermediate shaft 14 through a third positioning bolt 17, and the thrust plate 16 is used for pressing and positioning the driving gear 15. The accuracy, the firmness and the convenience of assembly and disassembly of the driving gear 15 and the intermediate shaft 14 are ensured.
According to the onboard cooling water pump of the marine diesel engine, the cooling water pump is integrally mounted on the diesel engine, the diesel engine is meshed with the driving gear through the driving gear to drive the intermediate shaft, and the impeller of the cooling water pump is driven through the supporting mounting of the intermediate shaft by the bearing, so that a high seawater lift is realized, seawater is subjected to heat exchange, the cooling and heat dissipation of the diesel engine are effectively realized, the thermal balance requirement of the diesel engine is met, and the running reliability of the diesel engine is ensured; and the temperature of the engine room can be effectively reduced, and the operation in the engine room is facilitated. The integral structure is simple, the use is convenient, the space occupation is small, and the limitation of self-installation of the cooling water pump is effectively avoided; and the transmission is accurate, the concentricity is high, the transmission of a transmission belt is avoided, the transmission belt is aged and broken to cause overheating damage of the diesel engine, and the transmission stability and the transmission efficiency are ensured.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The terms "upper", "lower", "outside", "inside" and the like in the description and claims of the present invention and the above drawings are used for distinguishing relative positions if any, and are not necessarily given qualitatively. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. An onboard cooling water pump of a marine diesel engine is characterized by comprising an intermediate shaft (14), and a cooling water pump body (3), a bearing shell (13) and a gear box shell (18) which are sequentially connected; a cooling water pump impeller (2), a bearing and a driving gear (15) which are connected with an intermediate shaft (14) are respectively arranged in the cooling water pump body (3), the bearing shell (13) and the gear box shell (18); the gearbox shell (18) is connected with the diesel engine, and the diesel engine is provided with a driving gear meshed with the driving gear (15).
2. The onboard cooling water pump of the marine diesel engine according to claim 1, wherein the cooling water pump impeller (2) is made of ethylene propylene diene monomer rubber and is installed in an interference fit manner with an inner cavity of the cooling water pump body (3).
3. The onboard cooling water pump of the marine diesel engine according to claim 1, characterized in that a water seal (4) and an oil seal (8) are sleeved on the intermediate shaft (14); the water seal (4) and one side of the cooling water pump body (3) close to the bearing shell (13) are attached, and the oil seal (8) and one side of the bearing shell (13) far away from the gear box shell (18) are attached.
4. The onboard cooling water pump of the marine diesel engine according to claim 3, characterized in that a thrust plate (5) and a spring (6) which are attached to the water seal (4) are further sleeved on the intermediate shaft (14); the spring (6) is supported between the thrust plate (5) and the oil seal (8).
5. The marine diesel engine on-board cooling water pump according to claim 1, characterized in that the bearing housing (13) is provided therein with a main bearing (11) disposed adjacent to the cooling water pump body (3) side and an auxiliary bearing (9) disposed adjacent to the gearbox housing (18) side; a clamp spring (12) for attaching and positioning the main bearing (11) is arranged on the middle shaft (14).
6. The marine diesel engine onboard cooling water pump according to claim 1, characterized in that the driving gear (15) and the intermediate shaft (14) are positioned and mounted by splines; the transmission mechanism further comprises a thrust plate (16) which is connected and installed with the end face of the intermediate shaft (14) through a third positioning bolt (17), and the thrust plate (16) is used for pressing and positioning the driving gear (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123361290.7U CN216406955U (en) | 2021-12-28 | 2021-12-28 | Onboard cooling water pump of marine diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123361290.7U CN216406955U (en) | 2021-12-28 | 2021-12-28 | Onboard cooling water pump of marine diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216406955U true CN216406955U (en) | 2022-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123361290.7U Active CN216406955U (en) | 2021-12-28 | 2021-12-28 | Onboard cooling water pump of marine diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216406955U (en) |
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2021
- 2021-12-28 CN CN202123361290.7U patent/CN216406955U/en active Active
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Effective date of registration: 20221228 Address after: 311232 No. 699, Hongtai Sixth Road, hongken farm, Xiaoshan Economic and Technological Development Zone, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee after: CHINA NATIONAL HEAVY DUTY TRUCK GROUP HANGZHOU ENGINE Co.,Ltd. Address before: Shengjing tangwangshan Road North Panwang Road West, Zhangqiu City, Jinan City, Shandong Province 250200 Patentee before: China National Heavy Duty Truck Group Jinan Power Co.,Ltd. |