Free end pressing plate structure of marine diesel engine
By designing an assembly ring, pressure plate device, and connecting device at the free end of the marine diesel engine, and using a servo motor to drive the screw and adjusting plate, the problems of crankshaft wear and deformation were solved, resulting in more stable equipment connection and higher diesel engine efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SU ZHOU ANYUSHENG SHIP MASCH CO LTD
- Filing Date
- 2025-02-18
- Publication Date
- 2026-04-10
AI Technical Summary
When the crankshaft at the free end of a marine diesel engine is used in long-term connection with equipment, it bears a large load, which leads to excessive wear and deformation, affecting the normal use and working efficiency of the diesel engine.
The structure includes an assembly ring, a pressure plate device, and a connecting device. The crankshaft is stably connected to the equipment by the cooperation of the servo motor driving the screw and the adjusting plate. The stability of the connection is improved by the use of bearings and stabilizing components, and the bolt and slot structure facilitates installation and maintenance.
It improves the stable operation of the free end crankshaft of the marine diesel engine, ensures the stability of the equipment connection, and enhances the performance and power output efficiency of the diesel engine.
Smart Images

Figure CN224107335U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to marine diesel engine technical field especially relates to a free end pressing plate structure of marine diesel engine. BACKGROUND
[0002] Engine is a kind of machine that can convert other forms into mechanical energy, engine includes gasoline engine, diesel engine and other types, diesel engine is used more in marine, and the free end of diesel engine is an important component of diesel engine, usually connect some important auxiliary equipment, such as pump transmission device and shock absorber etc.
[0003] The free end of marine diesel engine refers to the crankshaft position area away from the flywheel side of marine diesel engine, and when connecting with auxiliary equipment, the connecting shaft of auxiliary equipment is connected with the assembly part of one side of crankshaft, to be used in linkage, but in actual use, it is found that the crankshaft of the free end of marine diesel engine is connected with equipment for a long time, can bear larger load, thereby leading to excessive wear of crankshaft even deformation, thereby affecting normal use and working efficiency of marine diesel engine. UTILITY MODEL CONTENTS
[0004] The utility model discloses a free end pressing plate structure of marine diesel engine to solve the problem that the crankshaft of the free end of marine diesel engine is connected with equipment for a long time, can bear larger load, thereby leading to excessive wear of crankshaft even deformation, thereby affecting normal use and working efficiency of marine diesel engine.
[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a free end pressing plate structure of marine diesel engine, including assembly ring, pressing plate device and connecting device, the pressing plate device is installed on the surface of assembly ring by connecting device, wherein the assembly ring on the arc surface of the crankshaft of the free end of marine diesel engine can be more stably connected with other settings by the pressing plate device, and the connecting device connects the surface of marine diesel engine with the pressing plate device.
[0006] The effect reached by the above-mentioned components is that when the free end of diesel engine is assembled with external auxiliary equipment, first, the pressing plate device is installed on the surface of diesel engine by connecting device, then the free end side of crankshaft is connected with external equipment, then the pressing plate device is started to assist and limit crankshaft, when marine diesel engine is used, the crankshaft of free end can better ensure stable operation, thereby more stably connecting equipment, better assisting power output of diesel, further improving the use effect and functional efficiency of diesel engine.
[0007] Preferably, the pressing plate device comprises two pressing rings, the two pressing rings are clamped on the inner wall arc surface of the assembly ring respectively, the arc surface of the two pressing rings is fixedly connected with an adjusting plate respectively, the surface of the adjusting plate is rotatably connected with a screw rod penetrating therethrough, the arc surface of the screw rod is threadedly connected with a sliding block penetrating therethrough, the inner wall of the adjusting plate is slidably connected with the sliding block, the surface of the sliding block is fixedly connected with a mounting rod, one end of the screw rod is fixedly connected with a servo motor, the output end of the servo motor is fixedly connected with the screw rod, the surface of the servo motor is fixedly connected with the adjusting plate, the output end of the servo motor is sleeved with a protective sleeve, the protective sleeve is a rubber sleeve, the surface of the protective sleeve is fixedly connected with the servo motor, the inner wall arc surface of the assembly ring is fixedly connected with a stabilizing ring, the inner walls of the two pressing rings are respectively provided with stabilizing grooves, and the stabilizing ring is rotatably connected with the inner walls of the stabilizing grooves.
[0008] The effect achieved by the above-mentioned components is that the free end of the crankshaft can better ensure stable operation during use of the marine diesel engine, thereby more stably connecting the equipment and better assisting the power output of the diesel, further improving the use effect and functional efficiency of the diesel engine.
[0009] Preferably, one end of the screw rod is fixedly connected with a bearing, the inner ring of the bearing is fixedly connected with the screw rod, and the outer ring of the bearing is fixedly connected with the inner wall of the adjusting plate.
[0010] The effect achieved by the above-mentioned components is that the screw rod is more stable during rotation through the arrangement of the bearing, and is not prone to shaking, thereby ensuring stable and smooth relative displacement of the sliding block and the adjusting plate.
[0011] Preferably, a stabilizing assembly is arranged on the surface of the adjusting plate, and the stabilizing assembly enables stable displacement of the adjusting plate.
[0012] The effect achieved by the above-mentioned components is that the adjusting plate is more stable during sliding displacement of the pressing ring, and can be more quickly and accurately installed on the assembly ring.
[0013] Preferably, the stabilizing assembly comprises a stabilizing rod, the stabilizing rod is fixedly connected with the surface of the adjusting plate, the surface of the sliding block is provided with a sliding groove, and the stabilizing rod is slidably connected with the inner wall of the sliding groove.
[0014] The effect achieved by the above-mentioned components is that the adjusting plate is better ensured to be stable during relative movement of the sliding block and the adjusting plate driven by the screw rod, and is not prone to shaking, thereby better enabling the pressing ring to be assembled on the assembly ring.
[0015] Preferably, the connecting device comprises a fixed frame fixedly installed on the surface of the diesel engine, the mounting rod is clamped with the inner wall of the fixed frame, the surface of the mounting rod is inserted with a bolt, the bolt is threadedly connected with the surface of the fixed frame, and the arc surface of the bolt is threadedly connected with a nut.
[0016] The effects achieved by the above components are that the pressing plate device is more convenient and fast in use, thereby better limiting and stabilizing the free end of the diesel engine, and facilitating the maintenance of each component of the pressing plate device, thereby ensuring normal use of the device.
[0017] Preferably, the surface of the fixed frame is provided with clamping grooves on both sides, the inner wall of the clamping groove is clamped with a clamping block, and the clamping block is fixedly connected with the surface of the mounting rod.
[0018] The effects achieved by the above components are that the mounting rod is more stably assembled in the inner wall of the fixed frame through the clamping of the clamping block and the clamping groove, thereby making the assembly of the pressing plate device more stable.
[0019] Preferably, the surface of the nut is provided with a positioning groove, the inner wall of the positioning groove is slidably inserted with a positioning block, and the positioning block is fixedly connected with the surface of the fixed frame.
[0020] The effects achieved by the above components are that the nut is more stably attached to one side of the fixed frame through the clamping of the positioning groove and the positioning block, and is more quickly and stably connected with the nut when the bolt penetrates the mounting rod and the fixed frame.
[0021] In summary, the beneficial effects of the present application are:
[0022] When the marine diesel engine is used, the crankshaft of the free end can be better ensured to stably run, thereby more stably connecting the equipment, better assisting the power output of the diesel, and further improving the use effect and functional efficiency of the diesel engine. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 It is a three-dimensional structure schematic diagram of the present application;
[0024] Figure 2 It is a three-dimensional structure schematic diagram of the pressing plate device of the present application;
[0025] Figure 3 It is a side three-dimensional structure schematic diagram of the present application; Figure 2
[0026] Figure 4 It is a three-dimensional structure schematic diagram of the connecting device of the present application.
[0027] Legend: 1, assembly ring; 2, pressing plate device; 21, pressing ring; 22, adjusting plate; 23, screw rod; 24, servo motor; 25, sliding block; 26, mounting rod; 27, protective sleeve; 28, bearing; 29, stabilizing ring; 210, stabilizing groove; 3, connecting device; 31, fixed frame; 32, bolt; 33, nut; 34, clamping groove; 35, clamping block; 36, positioning block; 37, positioning groove; 4, stabilizing assembly; 41, stabilizing rod; 42, sliding groove. DETAILED DESCRIPTION
[0028] Referring to Figure 1 The embodiment shown discloses a free end pressing plate structure of a marine diesel engine, comprising an assembly ring 1, a pressing plate device 2 and a connecting device 3, the pressing plate device 2 is installed on the surface of the assembly ring 1 by means of the connecting device 3, wherein the pressing plate device makes the assembly ring 1 on the arc surface of the free end crankshaft of the marine diesel more stable and adaptively connected to other settings, wherein the connecting device 3 connects the pressing plate device 2 with the surface of the marine diesel engine, the surface of the adjusting plate 22 is provided with a stabilizing assembly 4, when the free end of the diesel engine is assembled with an auxiliary device, first install the pressing plate device 2 on the surface of the diesel engine by means of the connecting device 3, then connect the free end side of the crankshaft with the external equipment for assembly, then start the pressing plate device 2 to assist in limiting the crankshaft, at this time the marine diesel engine can better ensure stable operation of the free end crankshaft when in use, thereby more stably connecting the equipment and better assisting the power output of the diesel, further improving the use effect and functional efficiency of the diesel engine.
[0029] Referring to Figure 1 and Figure 2 and Figure 3As shown, this embodiment discloses a pressure plate device 2 including two pressure rings 21. The two pressure rings 21 are respectively snapped onto the inner arc surface of the assembly ring 1. Adjusting plates 22 are fixedly connected to the arc surfaces of the two pressure rings 21 respectively. A screw 23 is rotatably connected through the surface of the adjusting plate 22. A slider 25 is threaded through the arc surface of the screw 23. The slider 25 is slidably connected to the inner wall of the adjusting plate 22. An installation rod 26 is fixedly connected to one side surface of the slider 25. A servo motor 24 is fixedly connected to one end of the screw 23. The output end of the servo motor 24 is fixedly connected to the screw 23. The servo motor 24 is fixedly connected to the surface of the adjusting plate 22. A protective sleeve 27, which is a rubber sleeve, is fitted onto the output end of the servo motor 24. The protective sleeve 27 is fixedly connected to the surface of the servo motor 24. A stabilizing ring 29 is fixedly connected to the inner arc surface of the assembly ring 1. Stabilizing grooves 210 are respectively opened on the inner walls of the two pressure rings 21. The stabilizing ring 29 is rotatably connected to the inner wall of the stabilizing groove 210. When the free end of the diesel engine is being assembled with external auxiliary equipment, the free end of the crankshaft is connected to the external equipment. Then, the servo motors 24 on both sides of the crankshaft are started. The operation of the servo motors 24 will drive the screw 23 on the start output end to rotate. Due to the sliding limit effect of the adjusting plate 22 and the slider 25, the rotation of the screw 23 will drive the adjusting plate 22 and the slider 25 to move relative to each other, so that the adjusting plate 22 moves closer to the crankshaft until the inner wall of the pressure ring 21 on the adjusting plate 22 contacts the inner wall of the assembly ring 1 fixedly connected to the arc surface of the crankshaft. The two ends of the two pressure rings 21 will contact each other. At this time, when the marine diesel engine is in use, the crankshaft at the free end can better ensure stable operation, thereby more stably connecting the equipment, better assisting the power output of diesel, and further improving the use effect and functional efficiency of the diesel engine.
[0030] Reference Figure 1 and Figure 2 as well as Figure 3 As shown, this embodiment discloses a bearing 28 fixedly connected to one end of the screw 23. The inner ring of the bearing 28 is fixedly connected to the screw 23, and the outer ring of the bearing 28 is fixedly connected to the inner wall of the adjusting plate 22. The bearing 28 makes the screw 23 more stable when rotating and less prone to shaking, thereby ensuring the stable and smooth relative displacement between the slider 25 and the adjusting plate 22. The stabilizing component 4 includes a stabilizing rod 41, which is fixedly connected to the surface of the adjusting plate 22. The surface of the slider 25 is provided with a groove 42, and the stabilizing rod 41 is slidably connected to the inner wall of the groove 42. The stabilizing rod 41 and the groove 42 ensure the stability of the adjusting plate 22 when the screw 23 drives the slider 25 to move relative to the adjusting plate 22, making it less prone to shaking, thereby better assembling the pressure ring 21 onto the assembly ring 1.
[0031] Reference Figure 1 and Figure 2and Figure 4 As shown in the figure, the embodiment discloses that the connecting device 3 comprises a fixed frame 31 fixedly installed on the surface of the diesel engine, a mounting rod 26 is clamped with the inner wall of the fixed frame 31, a bolt 32 is inserted through the surface of the mounting rod 26, the bolt 32 is threadedly connected with the surface of the fixed frame 31, and a nut 33 is threadedly connected with the arc surface of the bolt 32. When the pressing plate device 2 is installed and fixed by using the connecting device 3, first, the mounting rod 26 is clamped into the inner wall of the fixed frame 31 on the surface of the diesel engine, then the bolt 32 is inserted through the surface of the mounting rod 26, the bolt 32 is threadedly rotated to penetrate the surface of the fixed frame 31, and finally the nut 33 is threadedly connected on the bolt 32 until the nut 33 contacts and is pressed on the surface of the fixed frame 31. At this time, the pressing plate device 2 is more convenient and fast in use, so that the free end of the diesel engine is better limited and stabilized, and the components of the pressing plate device 2 are convenient to overhaul and maintain, thereby ensuring the normal use of the device.
[0032] Referring to Figure 1 and Figure 2 and Figure 4 As shown in the figure, the embodiment discloses that the surface of the fixed frame 31 is provided with a clamping groove 34 on each side, a clamping block 35 is clamped in the inner wall of the clamping groove 34, the clamping block 35 is fixedly connected with the surface of the mounting rod 26, the mounting rod 26 is more stably assembled in the inner wall of the fixed frame 31 through the clamping of the clamping block 35 and the clamping groove 34, so that the assembly of the pressing plate device 2 is more stable, a positioning groove 37 is formed in the surface of the nut 33, a positioning block 36 is slidably inserted in the inner wall of the positioning groove 37, the positioning block 36 is fixedly connected with the surface of the fixed frame 31, the nut 33 is more stably attached to one side of the fixed frame 31 through the clamping of the positioning groove 37 and the positioning block 36, and the connection of the bolt 32 penetrating the mounting rod 26 and the fixed frame 31 with the nut 33 is more rapid and stable.
[0033] Working principle: when the free end of the diesel engine is assembled with an external auxiliary device, the free end of the diesel engine is connected and assembled with the external device, then the servo motor 24 at the position of the two sides of the crankshaft is started, the rotation of the servo motor 24 drives the screw rod 23 on the starting output end to rotate, and because of the sliding limiting effect of the adjusting plate 22 and the sliding block 25, the rotation of the screw rod 23 drives the adjusting plate 22 and the sliding block 25 to have a relative position, so that the adjusting plate 22 approaches the crankshaft, until the inner wall of the pressing ring 21 on the adjusting plate 22 contacts with the inner wall of the assembly ring 1 fixedly connected with the arc surface of the crankshaft, and the two ends of the two pressing rings 21 contact with each other. At this time, the free end of the diesel engine can be better ensured to stably run when the marine diesel engine is used, so that the connection of the equipment is more stable, the power output of the diesel is better assisted, and the use effect and functional efficiency of the diesel engine are further improved.
[0034] When the pressing plate device 2 is installed and fixed by using the connecting device 3, first, the installation rod 26 is slidably clamped into the inner wall of the fixed frame 31 on the surface of the diesel engine, then the bolt 32 is penetrated through the surface of the installation rod 26, and then the bolt 32 is screwed to penetrate through the surface of the fixed frame 31, at the same time, the positioning groove 37 of the nut 33 is connected with the positioning block 36 on the surface of the fixed frame 31, and then the bolt 32 is screwed with the nut 33, at this time, the nut 33 is in contact with and pressed on the surface of the fixed frame 31, at this time, when the pressing plate device 2 is used, it is more convenient and fast, so that the free end of the diesel engine is better limited and stabilized, and the components of the pressing plate device 2 are convenient to overhaul and maintain, and the normal use of the device is ensured.
Claims
1. A free end platen structure of a marine diesel engine, comprising an assembly ring (1), a platen device (2) and a connection device (3), characterized in that: The pressing plate device (2) is installed on the surface of the assembling ring (1) by the connecting device (3), wherein the pressing plate device makes the assembling ring (1) on the free end crankshaft arc surface of the marine diesel more stable and adaptive connection, wherein the connecting device (3) connects the pressing plate device (2) with the surface of the marine diesel engine; the pressing plate device (2) comprises two pressing rings (21), the two pressing rings (21) are respectively clamped on the inner wall arc surface of the assembling ring (1), the arc surfaces of the two pressing rings (21) are respectively fixedly connected with adjusting plates (22), the surface of the adjusting plate (22) penetrates and is rotationally connected with a screw rod (23), the arc surface of the screw rod (23) penetrates and is threadedly connected with a sliding block (25), the sliding block (25) is slidably connected with the inner wall of the adjusting plate (22), one side surface of the sliding block (25) is fixedly connected with a mounting rod (26), one end of the screw rod (23) is fixedly connected with a servo motor (24), the output end of the servo motor (24) is fixedly connected with the screw rod (23), the surface of the servo motor (24) is fixedly connected with the adjusting plate (22), the output end of the servo motor (24) is sleeved with a protective sleeve (27), the protective sleeve (27) is a rubber sleeve, the surface of the protective sleeve (27) is fixedly connected with the servo motor (24), the inner wall arc surface of the assembling ring (1) is fixedly connected with a stabilizing ring (29), the inner walls of the two pressing rings (21) are respectively provided with stabilizing grooves (210), and the stabilizing ring (29) is rotationally connected with the inner walls of the stabilizing grooves (210).
2. A free end platen structure for a marine diesel engine according to claim 1, characterized in that: One end of the screw rod (23) is fixedly connected with a bearing (28), the inner ring of the bearing (28) is fixedly connected with the screw rod (23), and the outer ring of the bearing (28) is fixedly connected with the inner wall of the adjusting plate (22); a stabilizing assembly (4) is arranged on the surface of the adjusting plate (22), and the stabilizing assembly (4) enables the adjusting plate (22) to stably displace.
3. A free end deck structure for a marine diesel engine according to claim 2, characterized in that: The stabilizing assembly (4) comprises a stabilizing rod (41), the stabilizing rod (41) is fixedly connected with the surface of the adjusting plate (22), the surface of the sliding block (25) is provided with a sliding groove (42), and the stabilizing rod (41) is slidably connected with the inner wall of the sliding groove (42).
4. A free end deck structure for a marine diesel engine according to claim 3, characterized in that: The connecting device (3) comprises a fixed frame (31) fixedly installed on the surface of the diesel engine, the mounting rod (26) is clamped with the inner wall of the fixed frame (31), the surface of the mounting rod (26) penetrates and is inserted with a bolt (32), the bolt (32) is threadedly connected with the surface of the fixed frame (31), and the arc surface of the bolt (32) is threadedly connected with a nut (33).
5. A free end deck structure for a marine diesel engine according to claim 3, characterized in that: The surfaces of the fixed frame (31) are respectively provided with clamping grooves (34) on both sides, the clamping grooves (34) are clamped with clamping blocks (35), and the clamping blocks (35) are fixedly connected with the surface of the mounting rod (26). The surface of the nut (33) is provided with a positioning groove (37), the inner wall of the positioning groove (37) is slidably provided with a positioning block (36), and the positioning block (36) is fixedly connected with the surface of the fixed frame (31).