Fixing and disassembling tool for marine diesel engine water pump gear

Abstract

The utility model discloses a marine diesel engine water pump gear fixing and disassembling tool, and belongs to the technical field of water pumps, the marine diesel engine water pump gear fixing and disassembling tool comprises a seat body, a gear fixing and disassembling assembly and a gear fixing and disassembling assembly, one end of the fixing pin abuts against the gear, and the fixing pin is used for fixing the gear; a through hole is formed in the inner wall of the mounting cavity, the fixing pin is embedded into the through hole, and the end, connected with the gear, of the fixing pin is arranged in the mounting cavity; and the fixing pin is fixed on the seat body through a fixing assembly. The utility model has the beneficial effects that (1) in the maintenance of the marine diesel engine water pump, the gear of the water pump can be fixed, so that the gear does not rotate along with an impeller shaft, and all parts of the water pump are disassembled and maintained; and (2) the gear is extremely convenient to disassemble and maintain, the tool is easy to operate and low in cost, the tool can be operated according to gears of different sizes, and the tool can be repeatedly used and has very high applicability.

Description

Technical Field

[0001] This application relates to the technical field of water pumps, and particularly to a gear fixing and disassembling tool for a marine diesel engine water pump. Background Art

[0002] A diesel engine water pump uses a diesel engine as power, and the pump unit is driven by the diesel engine through an elastic coupling. It has an advanced and reasonable structure, high efficiency, good cavitation performance, small vibration, low noise, stable and reliable operation, and is convenient for installation and disassembly. The diesel engine complete water supply equipment can be used in the automatic / manual water supply systems of various enterprises. At present, diesel engine water pumps also have a wide range of applications in the marine field, with broad market prospects and extensive application fields.

[0003] However, the existing gear repair process for marine diesel engine water pumps has the following defects: during the disassembly process, the gear shafts of the fresh water pump and the sea water pump are of the same model, and the gear and the impeller share the same rotating shaft. When the gear shaft is not fixed, it is impossible to disassemble the impeller and the pump body components; currently, during the repair process, it is extremely inconvenient to disassemble and install the gear. There are even repair tools that can only be used once, resulting in a large repair cost and low repair efficiency. Summary of the Invention

[0004] The purpose of this application is to provide a gear fixing and disassembling tool that can at least solve one of the defects in the above background art.

[0005] To achieve the above purpose, this application provides a gear fixing and disassembling tool for a marine diesel engine water pump, including: a seat body, an installation cavity is provided inside the seat body and is adapted to set the gear; and a fixing pin, one end of the fixing pin abuts against the gear for fixing the gear; a through hole is provided through the inner wall of the installation cavity, the fixing pin is fitted with the through hole, and the end of the fixing pin connected to the gear is arranged inside the installation cavity; the fixing pin is fixed to the seat body through a fixing component. The gear fixing and disassembling tool for a marine diesel engine water pump sets the installation cavity to meet the size of the fresh water pump and sea water pump gears, and the position of the water pump gear is restricted by the installation cavity; a hole is opened on the inner wall of the installation cavity and the fixing pin is fitted into the through hole to restrict the position of the fixing pin inside the installation cavity, and the fixing component can completely fix the fixing pin on the seat body; the end of the fixing pin entering the installation cavity directly abuts against the water pump gear, and the water pump gear is fixed inside the installation cavity through the fixing pin with a fixed position. When in use, fix the lower end of the gear shaft mounting seat on the processing clamp, remove the bolts of the cross brace and the bracket, take out the fixing pin, stand up the fresh water pump and sea water pump, place the gear into the installation cavity of the seat body, install the fixing pin, fix the cross brace and the bracket with bolts, use the seat body to fix the fresh water pump and sea water pump gears, and use the gear fixing pin to clamp and fix the gear, so that the gear does not rotate with the impeller shaft during the disassembly process, and the impeller and the bearing body and other components can be disassembled and installed step by step.

[0006] Preferably, the diameter of the end of the fixing pin connected to the gear decreases from the cylinder of the fixing pin to the connecting head and is adapted to be clamped into the clearance of the gear, thereby fixing the gear in the installation cavity. The cylinder part of the fixing pin is cylindrical, and the size of the cylinder just fits into the through hole, and other parts of the fixing pin cylinder are exposed outside the installation cavity; the connecting head of the fixing pin is set to be bullet-shaped, and the diameter becomes smaller as it approaches the gear; there are multiple clearances on the surface of the water pump gear, and the connecting head of the fixing pin can just be clamped into the clearances of the water pump gear, thus fixing the water pump gear.

[0007] Preferably, the fixing assembly includes brackets, and the two brackets are respectively fixed on both sides of the seat body, and the heights of the two brackets are the same as the height of the through hole. The brackets on both sides can be directly fixed on the outer surfaces on both sides of the seat body by welding, and the positions of the brackets do not need to be adjusted according to the size of the gear object, etc., and the brackets are always fixed; the heights of the brackets on both sides are the same, and the heights of the brackets and the through hole are also the same, because the fixing pin needs to be fitted into the through hole, and the fixing pin and the two brackets need to be connected to the same cross bar, so the heights of the two brackets are the same as the height of the through hole.

[0008] Preferably, the fixing assembly further includes a cross bar, the cross bar is arranged above the brackets and the fixing pin, and the cross bar is connected to both the brackets and the fixing pin. The cross bar takes the two brackets as the base to determine the position. The cross bar can be perpendicular to the two brackets or set at a certain angle; the main purpose of the cross bar is to be connected to the fixing pin. As long as the cross bar is connected to the fixing pin, the angle of the cross bar and whether the two brackets are parallel can be set.

[0009] Preferably, the fixing pin is fixedly connected to the cross bar, thereby fixing the fixing pin on the seat body. During actual use, the gear needs to be placed in the installation cavity first, and then the fixing pin enters the installation cavity through the through hole and clamps the position of the gear; then the cross bar is fixedly connected to the fixing pin to fix the position of the fixing pin, clamp the fixed gear, and prevent the gear from rotating with the impeller shaft during disassembly.

[0010] Preferably, both the cross bar and the brackets are provided with screw holes, and the cross bar and the brackets are connected by bolts. The bolts between the cross bar and the brackets are unscrewed before the fixing pin abuts against the gear. When the position of the fixing pin is determined, the cross bar is connected to the fixing pin, and the bolts are tightened to completely fix the cross bar and the brackets, and at the same time fix the fixing pin; the connection by bolts can adjust the position of the fixing pin at any time according to different situations, realizing the continuous use of the tooling for multiple times.

[0011] Preferably, the seat body includes a base, which is arranged at the bottom of the installation cavity. The base is connected to the processing pliers and is used to fix the seat body. The size of the base of the seat body is smaller than that of the installation cavity. The base is clamped on a fixing processing device such as processing pliers or a vise, so that the lower end of the installation cavity abuts against the clamping position, which can facilitate the operation of the installation cavity. At the same time, after fixing the seat body, only hold the fresh and salt water pump by hand to operate and then the gear can be fixed.

[0012] Preferably, a groove is provided at the connection end of the bracket and the seat body for fixing the bracket on the seat body. A groove is provided at the connection part of one end where the bracket is fixedly connected to the seat body. On the one hand, it can save the material of the bracket and reduce the cost. On the other hand, it can make the surface of the bracket and the seat body more fitting and strengthen the connection strength between the bracket and the seat body.

[0013] Compared with the prior art, the beneficial effects of this application are as follows:

[0014] (1) During the maintenance of the marine diesel engine water pump, the water pump gear can be fixed so that the gear does not rotate with the impeller shaft, thus disassembling and maintaining each component of the water pump;

[0015] (2) It is extremely convenient to disassemble and maintain the gear. The tooling operation is simple and the cost is low. The tooling can operate on gears of different sizes, can be reused repeatedly and has strong applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the first embodiment of the present utility model.

[0017] Figure 2 It is a schematic side sectional view of the seat body in the first embodiment of the present utility model.

[0018] Figure 3 It is a schematic top view of the seat body in the first embodiment of the present utility model.

[0019] Figure 4 It is a schematic structural diagram of the fixing pin in the first embodiment of the present utility model.

[0020] Figure 5 It is a schematic structural diagram of the bracket in the first embodiment of the present utility model.

[0021] Figure 6 It is a schematic structural diagram of the cross brace in the first embodiment of the present utility model.

[0022] In the figure: 1. Seat body; 2. Fixing assembly; 3. Fixing pin; 4. Bolt; 11. Installation cavity; 12. Base; 13. Through hole; 21. Bracket; 22. Cross brace; 31. Connection head; 32. Cylinder; 211. Groove; 212. Bracket screw hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, in combination with specific implementation manners, the present application will be further described. It should be noted that, on the premise of non-conflict, any combination can be formed among the following-described embodiments or technical features to form a new embodiment.

[0024] In the description of the present application, it should be noted that for orientation terms, such as terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and position relationships indicated are based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present application.

[0025] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects and do not necessarily have to be used to describe a specific order or sequence.

[0026] The terms "comprising" and "having" in the description and claims of the present application and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0027] For the convenience of understanding, the following can be illustrated through specific embodiments. It should be known that the specific structure of the fixing and disassembling tooling for the marine diesel engine water pump gear includes but is not limited to the following embodiments.

[0028] Embodiment 1:

[0029] The present application provides a fixing and disassembling tooling for a marine diesel engine water pump gear, as Figure 1As shown in the figure, it includes: a seat body 1, an installation cavity 11 is provided inside the seat body 1 and is suitable for arranging a gear; and a fixing pin 3, one end of the fixing pin 3 abuts against the gear for fixing the gear; a through hole 13 is provided on the inner wall of the installation cavity 11, the fixing pin 3 is fitted with the through hole 13, and the end of the fixing pin 3 connected to the gear is arranged inside the installation cavity 11; the fixing pin 3 is fixed on the seat body 1 through a fixing component 2. The installation cavity 11 of the marine diesel engine water pump gear fixing and disassembling tooling is set to meet the size of the fresh and seawater pump gear, and the position of the water pump gear is restricted by the installation cavity 11; a hole is opened on the inner wall of the installation cavity 11 and the fixing pin 3 is fitted into the through hole 13, which can restrict the position of the fixing pin 3 inside the installation cavity 11, and the fixing component 2 can completely fix the fixing pin 3 on the seat body 1; one end of the fixing pin 3 entering the installation cavity 11 directly abuts against the water pump gear, and the water pump gear is fixed in the installation cavity 11 through the fixing pin 3 with a fixed position. When in use, the gear shaft mounting seat body 1 is fixed at the lower end on the processing clamp, the bolt 4 of the cross brace 22 and the bracket 21 is removed, the fixing pin 3 is taken out, the fresh and seawater pump is erected, the gear is placed into the installation cavity 11 of the seat body 1, the fixing pin 3 is installed, the cross brace 22 and the bracket 21 are fixed with the bolt 4, the seat body 1 is used to fix the fresh and seawater pump gear, and the gear fixing pin 3 is used to clamp and fix the gear, so that the gear does not rotate with the impeller shaft during the disassembly process, and the impeller and bearing body and other components can be disassembled and installed step by step and successively.

[0030] The specific structural features of each component are described below.

[0031] As Figure 2 、 Figure 3 shown in the figure, the seat body 1 includes a base 12, the base 12 is arranged at the bottom of the installation cavity 11, and the base 12 is connected to the processing clamp for fixing the seat body 1. The size of the base 12 of the seat body 1 is smaller than that of the installation cavity 11. The base 12 is clamped on a fixed processing device such as a processing clamp or a vise, so that the lower end of the installation cavity 11 abuts against the clamping position, which can facilitate the operation of the installation cavity 11. At the same time, after the seat body 1 is fixed, only the fresh and seawater pump needs to be held by hand for operation to fix the gear.

[0032] As Figure 4 shown in the figure, the diameter of the end of the fixing pin 3 connected to the gear decreases from the cylinder 32 of the fixing pin 3 to the connecting head 31 and is suitable for clamping the clearance of the gear, so as to fix the gear in the installation cavity 11. The cylinder 32 part of the fixing pin 3 is cylindrical, and the size of the cylinder is just fitted into the through hole 13. Other parts of the cylinder 32 of the fixing pin 3 are exposed outside the installation cavity 11; the connecting head 31 of the fixing pin 3 is set to be bullet-shaped, and the diameter becomes smaller as it gets closer to the gear; there are multiple clearances on the surface of the water pump gear, and the connecting head 31 of the fixing pin 3 can just be clamped into the clearances of the water pump gear, so as to fix the water pump gear.

[0033] As Figure 5As shown in the figure, the fixing component 2 includes brackets 21. The two brackets 21 are respectively fixed on both sides of the seat body 1, and the heights of the two brackets 21 are the same as the height of the through hole 13. The brackets 21 on both sides can be directly fixed on the outer surfaces of both sides of the seat body 1 by welding. The positions of the brackets 21 do not need to be adjusted according to the dimensions of the gear object, etc., and the brackets 21 are always fixed; the heights of the brackets 21 on both sides are the same, and the heights of the brackets 21 and the through hole 13 are also the same. Because a fixing pin 3 is to be fitted in the through hole 13, and the same cross bar 22 needs to be connected between the fixing pin 3 and the two brackets 21, the heights of the two brackets 21 are the same as the height of the through hole 13. A groove 211 is provided at the connection end of the bracket 21 and the seat body 1 for fixing the bracket 21 on the seat body 1. A groove 211 is provided at the connection part of the end of the bracket 21 fixedly connected to the seat body 1. On the one hand, it can save the material of the bracket 21 and reduce the cost. On the other hand, it can make the bracket 21 fit more closely to the surface of the seat body 1 and strengthen the connection strength between the bracket 21 and the seat body 1. A bracket screw hole 212 is provided at one end of the bracket 21 away from the groove 211 for bolt 4 connection with the cross bar 22.

[0034] As Figure 6 shown in the figure, the fixing component 2 further includes a cross bar 22. The cross bar 22 is arranged above the brackets 21 and the fixing pin 3, and the cross bar 22 is connected to both the brackets 21 and the fixing pin 3. The cross bar 22 uses the two brackets 21 as the base 12 to determine its position. The cross bar 22 can be perpendicular to the two brackets 21 or arranged at a certain angle; the main purpose of the cross bar 22 is to connect with the fixing pin 3. As long as the cross bar 22 is connected to the fixing pin 3, the angle of the cross bar 22 and whether the two brackets 21 are parallel can be set arbitrarily. Screw holes are provided on both the cross bar 22 and the brackets 21, and the cross bar 22 and the brackets 21 are connected by bolts 4. Before the fixing pin 3 abuts against the gear, the bolts 4 are unscrewed between the cross bar 22 and the brackets 21. After the position of the fixing pin 3 is determined, the cross bar 22 is connected to the fixing pin 3, and the bolts 4 are tightened to completely fix the cross bar 22 and the brackets 21, and at the same time fix the fixing pin 3; by using the bolts 4 for connection, the position of the fixing pin 3 can be adjusted at any time according to different situations, realizing the continuous use of the tooling for multiple times. Cross bar screw holes 221 are provided at both ends of the cross bar 22, and the two cross bar screw holes 221 are respectively aligned with the two bracket screw holes 212 and fixed by two bolts 4.

[0035] The working principle of the fixing and disassembling tooling for the marine diesel engine water pump gear is as follows: Fix the lower end of the gear shaft mounting body 1 on a machining vise or a bench vise. Remove the bolt 4 connecting the cross brace 22 and the bracket 21, take out the fixing pin 3, stand the fresh and seawater pump upright, place the gear into the mounting cavity 11 of the body 1, install the fixing pin 3, fix the cross brace 22 and the bracket 21 with the bolt 4, use the body 1 to fix the fresh and seawater pump gear, and use the gear fixing pin 3 to hold the gear in place, so that the gear does not rotate with the impeller shaft during disassembly. The components such as the impeller and the bearing body can be disassembled and installed step by step. After the repair of each component of the fixing and disassembling tooling for the marine diesel engine water pump gear, it can be reinstalled and used. It is convenient for disassembly and installation, the fresh and seawater pump works well, improving the repair work efficiency of the factory, reducing the repair cost, and ensuring the efficiency and quality.

[0036] The above describes the basic principle, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements will occur to the present application, and these changes and improvements all fall within the scope of the present application claimed. The scope of protection required by the present application is defined by the appended claims and their equivalents.

Claims

1. A fixing and disassembling tool for a marine diesel engine water pump gear, characterized in that: include: A seat body, wherein a mounting cavity is provided in the seat body and is suitable for mounting the gear; as well as A fixing pin, one end of which abuts against the gear and is used to fix the gear; a through hole is provided on the inner wall of the installation cavity, the fixing pin is engaged with the through hole, and one end of the fixing pin connected to the gear is arranged in the installation cavity; the fixing pin is fixed to the seat body through a fixing assembly.

2. The fixing and disassembling tool for the marine diesel engine water pump gear according to claim 1, characterized in that: The diameter of one end of the fixing pin connected to the gear is reduced from the fixing pin column to the connecting head and is suitable for clamping the gear gap, thereby fixing the gear in the installation cavity.

3. The fixing and disassembling tool for a marine diesel engine water pump gear according to claim 1, characterized in that: The fixing assembly includes a bracket, and two brackets are respectively fixed on two sides of the seat body, and the height of the two brackets is the same as the height of the through hole.

4. The fixing and disassembling tool for the marine diesel engine water pump gear according to claim 3, characterized in that: The fixing assembly further comprises a cross brace, which is arranged above the bracket and the fixing pin, and the cross brace is connected to both the bracket and the fixing pin.

5. The fixing and disassembling tool for the marine diesel engine water pump gear according to claim 4, characterized in that: The fixing pin is fixedly connected to the cross brace rod, thereby fixing the fixing pin on the seat body.

6. The fixing and disassembling tool for a marine diesel engine water pump gear according to claim 4, characterized in that: The cross brace and the bracket are both provided with screw holes, and the cross brace is connected to the bracket by bolts.

7. The fixing and disassembling tool for a marine diesel engine water pump gear according to claim 1, characterized in that: The seat body comprises a base, the base is arranged at the bottom of the installation cavity, and the base is connected to the processing clamp for fixing the seat body.

8. The fixing and disassembling tool for a marine diesel engine water pump gear according to claim 3, characterized in that: A groove is provided at the connecting end between the bracket and the seat body, which is used to fix the bracket on the seat body.

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