Engine flywheel positioning tool

Abstract

The utility model discloses an engine flywheel positioning tool, which relates to the technical field of flywheel positioning devices, and comprises two tool main bodies which are assembled in a sealing manner, the top of each tool main body is fixedly connected with a semi-positioning fluted disc, the outer side of each tool main body is provided with a positioning lug boss, and the inner side of each tool main body is provided with an oil storage cavity. Lubricating oil is injected into the oil storage cavities, rotating gears with the diameter equal to that of the semi-positioning fluted discs are rotationally connected into the oil storage cavities of the two tool bodies, and the specification of teeth of the semi-positioning fluted discs is the same as that of teeth of the rotating gears. The rotating gear is arranged between the two semi-positioning fluted discs, the rotating gear can rotate in the oil storage cavity, the rotating gear can rotate oil at the bottom of the oil storage cavity to the upper portion, when the flywheel is detached from the semi-positioning fluted discs, the flywheel can pass through teeth of the rotating gear, so that gaps of the teeth are lubricated, the flywheel is more lubricated in the detaching process, and the service life of the flywheel is prolonged. And more labor is saved during disassembly.

Description

Technical Field

[0001] The utility model relates to the technical field of flywheel positioning devices, in particular to an engine flywheel positioning tool. Background Art

[0002] The engine flywheel positioning tool is a tool used to install and position the engine flywheel. The flywheel is an important part of the engine. It is connected to the crankshaft and transmits power through the clutch or transmission. In order to ensure that the flywheel is correctly installed on the engine to ensure normal operation and power transmission, a flywheel positioning tool is required.

[0003] In the existing patent literature, there is a patent with the announcement number CN 212071726 U and the patent name "An engine flywheel positioning tool". In this patent, the flywheel is mainly positioned by the positioning teeth on the positioning part of the tool. When positioning, the teeth of the flywheel and the positioning teeth are engaged with each other for positioning. However, due to the mutual contact between the teeth, the friction between the two is too large when disassembling along the length direction of the teeth, which is inconvenient during disassembly.

[0004] Therefore, in view of the shortcomings of the above scheme in actual production and implementation, it has been revised and improved. At the same time, in the spirit and concept of seeking excellence, with the assistance of professional knowledge and experience, and after many ingenuity and experiments, the present utility model was created, which specially provides an engine flywheel positioning tooling to solve the above problems. Utility Model Content

[0005] The utility model provides an engine flywheel positioning tool, which solves the problems in the prior art.

[0006] The technical solution of the utility model is achieved in this way:

[0007] An engine flywheel positioning tool comprises a tool body with two sealing assemblies, a semi-positioning gear disc is fixedly connected to the top of the tool body, and a positioning protrusion is arranged on the outer side of the tool body; an oil storage cavity is opened on the inner side of the tool body, and lubricating oil is injected into the oil storage cavity; rotating gears with the same diameter as the semi-positioning gear disc are rotatably connected in the oil storage cavities of the two tool bodies, and the tooth specifications of the semi-positioning gear disc are the same as the tooth specifications of the rotating gear.

[0008] With this solution, a rotating gear is set between two semi-positioning gear plates, and the rotating gear can rotate in the oil storage chamber. The rotating gear can rotate the oil at the bottom of the oil storage chamber to the top. When the flywheel is removed from the semi-positioning gear plate, it will pass through the teeth of the rotating gear, thereby lubricating the gap between the teeth, which will be more lubricated during disassembly and save more effort.

[0009] As a preferred implementation of the engine flywheel positioning tool, the liquid level of the lubricating oil is 1 / 10-1 / 4 of the diameter of the oil storage cavity.

[0010] By adopting this solution, in order to prevent the lubricating oil from overflowing due to the lubricating oil level being too high, the lubricating oil level can be controlled at 1 / 10-1 / 4, which can ensure lubrication and prevent the lubricating oil from overflowing.

[0011] As a preferred implementation of the engine flywheel positioning tool, a rotating shaft is concentrically fixed on the side wall of the rotating gear, a rotating hole is opened on the side wall of the tool body, and the rotating shaft is rotatably connected in the rotating hole.

[0012] With this solution, in order to realize the rotation of the rotating gear, a rotating shaft and a rotating hole are provided to ensure the normal rotation of the rotating gear.

[0013] As a preferred implementation of the engine flywheel positioning tool, a positioning rotating rod is also fixed above the side wall of the tool body, and a rotating seat is rotatably connected to the rod body of the positioning rotating rod. A top rod is installed through the rotating seat, and the end of the positioning rotating rod is fixedly connected to a limited position head.

[0014] This solution is adopted by setting a push rod, which has the following functions: 1. It can be used to fix the two sides of the flywheel, further improving the stability and reliability of the flywheel positioning; 2. By rotating the push rod, flywheels of different sizes can be positioned, and it has good versatility; 3. By rotating the push rod, the flywheel can be pushed out from the semi-positioning gear disc, which will save more effort when disassembling.

[0015] As a preferred implementation of the engine flywheel positioning tool, the abutting end of the push rod is a round head.

[0016] By adopting this solution, in order to reduce the wear on the side wall of the flywheel, the abutting end of the push rod is set to a round head, which can reduce the friction between the two when they are in contact.

[0017] As a preferred embodiment of the engine flywheel positioning tool, at least one rotating side ear is fixed to the rotating end of the push rod.

[0018] With this solution, in order to facilitate the rotation of the top rod, a rotating side ear is provided, which saves more effort when rotating the rotating top rod.

[0019] As a preferred embodiment of the engine flywheel positioning tool, at least one positioning hole is formed through the side wall of the tool body.

[0020] By adopting this solution, in order to facilitate the fixation of the two tooling bodies, bolts are assembled in the positioning holes, and the bolts and nuts cooperate to fix the two tooling bodies.

[0021] As a preferred implementation of the engine flywheel positioning tool, an avoidance groove is also provided at the location of the positioning hole.

[0022] This solution is adopted to prevent bolts and nuts from affecting the production line. Avoidance grooves are opened and the bolts and nuts are located in the avoidance grooves to avoid interfering with the production line.

[0023] After adopting the above technical solution, the beneficial effects of the utility model are:

[0024] 1. By setting a rotating gear between two semi-positioning gear plates, and the rotating gear being able to rotate in the oil storage chamber, the rotating gear can rotate the oil at the bottom of the oil storage chamber to the top. When the flywheel is removed from the semi-positioning gear plate, it will pass through the teeth of the rotating gear, thereby lubricating the gap between the teeth, which will be more lubricated during disassembly and save more effort.

[0025] 2. By setting the ejector rod, its first function is to fix the two sides of the flywheel, further improving the stability and reliability of the flywheel positioning; its second function is to rotate the ejector rod to position flywheels of different sizes, which has good versatility; its third function is to rotate the ejector rod to push the flywheel out of the semi-positioning gear disc, which will save more effort when disassembling. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0028] Figure 2 for Figure 1 A cross-sectional view of the internal structure;

[0029] Figure 3 for Figure 1 The three-dimensional structure diagram of the rotating gear;

[0030] Figure 4 for Figure 1 The three-dimensional structure of the main body of the tooling Figure 1 ;

[0031] Figure 5 for Figure 1 The three-dimensional structure of the main body of the tooling Figure 2 ;

[0032] Figure 6 The three-dimensional structure of the utility model when the flywheel is positioned Figure 1 ;

[0033] Figure 7 The three-dimensional structure of the utility model when the flywheel is positioned Figure 2 ;

[0034] Figure 8 for Figure 6 Side view in;

[0035] Fig. 9 The utility model is a three-dimensional structure when the flywheel is disassembled Figure 1 ;

[0036] Fig.10 The utility model is a three-dimensional structure when the flywheel is disassembled Figure 2 ;

[0037] Fig.11 for Fig. 9 Side view in;

[0038] In the figure: 1- tooling body; 2- semi-positioning gear disc; 3- positioning protrusion; 4- oil storage chamber; 5- rotating gear; 6- rotating shaft; 7- rotating hole; 8- positioning rotating rod; 9- rotating seat; 10- push rod; 11- limiting head; 12- positioning hole; 13- avoidance groove; 14- flywheel. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] like Figures 1 to 8 As shown, an engine flywheel positioning tool comprises two sealingly assembled tool bodies 1, a semi-positioning gear disc 2 is fixedly connected to the top of the tool body 1, and a positioning protrusion 3 is arranged on the outside of the tool body 1; an oil storage chamber 4 is opened on the inside of the tool body 1, and lubricating oil is injected into the oil storage chamber 4, and a rotating gear 5 with the same diameter as the semi-positioning gear disc 2 is rotatably connected in the oil storage chambers 4 of the two tool bodies 1, and the tooth specifications of the semi-positioning gear disc 2 are the same as the tooth specifications of the rotating gear 5, and the teeth of the semi-positioning gear disc 2 and the teeth of the flywheel 14 are meshed with each other to complete the fixing of the flywheel 14. By arranging the rotating gear 5 between the two semi-positioning gear discs 2, the rotating gear 5 can rotate in the oil storage chamber 4, and the rotating gear 5 can rotate the oil at the bottom of the oil storage chamber 4 to the top, when the flywheel 14 is disassembled from the semi-positioning gear disc 2, it will pass through the teeth of the rotating gear 5, thereby lubricating the gap between the teeth, which will be more lubricated during disassembly and more labor-saving during disassembly.

[0041] like Figure 4 As shown, the liquid level of the lubricating oil is 1 / 4 of the diameter of the oil storage chamber 4. In order to prevent the liquid level of the lubricating oil from being too high and overflowing, the liquid level of the lubricating oil can be controlled at 1 / 10-1 / 4, which can ensure complete lubrication and prevent the lubricating oil from overflowing.

[0042] like Figures 2 to 4 As shown, a rotating shaft 6 is coaxially fixed on the side wall of the rotating gear 5, and a rotating hole 7 is opened on the side wall of the tooling body 1, and the rotating shaft 6 is rotatably connected in the rotating hole 7. In order to realize the rotation of the rotating gear 5, the rotating shaft 6 and the rotating hole 7 are provided to ensure the normal rotation of the rotating gear 5.

[0043] like Figure 1 and Figure 5 As shown, a positioning rotating rod 8 is also fixed on the upper side wall of the tool body 1, and a rotating seat 9 is rotatably connected to the rod body of the positioning rotating rod 8, and a top rod 10 is installed through the rotating seat 9, and the end of the positioning rotating rod 8 is fixedly connected to the limited position head 11. By setting the top rod 10, its first function is to fix the two sides of the flywheel 14, further improving the stability and reliability of the flywheel 14 when positioning; its second function is to rotate the top rod 10, and flywheels 14 of different sizes can also be positioned, which has good versatility.

[0044] like Figure 1 As shown, the abutting end of the push rod 10 is a round head. In order to reduce the wear on the side wall of the flywheel 14, the abutting end of the push rod 10 is set to a round head, which can reduce the friction between the two when in contact.

[0045] like Figure 1 As shown, two rotating side ears are fixed to the rotating end of the top rod 10. In order to facilitate the rotation of the top rod 10, by providing the rotating side ears, it will be more labor-saving when rotating the rotating top rod 10.

[0046] like Figure 5 As shown, four positioning holes 12 are formed through the side wall of the tool body 1. In order to facilitate the fixation of the two tool bodies 1, bolts are assembled in the positioning holes 12, and the bolts and nuts cooperate to fix the two tool bodies 1.

[0047] like Figure 5 As shown, an avoidance groove 13 is also provided at the location of the positioning hole 12. In order to prevent the bolts and nuts from affecting the production line, the avoidance groove 13 is provided, and the bolts and nuts are located in the avoidance groove 13 to avoid interfering with the production line.

[0048] The working principle of this utility model:

[0049] like Figures 6 to 8As shown, during installation, the flywheel 14 is assembled on the semi-positioning toothed disc 2 along the length direction of the teeth. At this time, the teeth of the semi-positioning toothed disc 2 mesh with the teeth of the flywheel 14. Then, the rotating gear 5 is rotated more than half a circle, so that the lubricating oil in the oil storage chamber 4 is rotated to the top through the rotating gear 5, and the flywheel 14 is pushed again, so that the teeth of the flywheel 14 mesh with the teeth of the semi-positioning toothed disc 2 and the rotating gear 5 at the same time. At this time, since the semi-positioning toothed disc 2 is in a fixed state, the flywheel 14 can still be fixed. At this time, the lubricating oil invades between the teeth, so it will be more labor-saving when disassembling the flywheel 14 along the length direction of the teeth. In order to fix the side wall of the flywheel 14, the top rod 10 is rotated so that the ends of the two top rods 10 are simultaneously abutted and fixed to the side wall of the flywheel 14, further improving the stability and reliability of the flywheel 14 when it is positioned.

[0050] like Figures 9 to 11 As shown, during disassembly, one of the push rods 10 can be rotated downward, and the flywheel 14 can be pushed by the push rod 10 by continuously rotating the other push rod 10, thereby assisting the disassembly of the flywheel 14, which will save more effort when disassembling the flywheel 14.

[0051] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An engine flywheel positioning tool, comprising a tool body (1) with two sealing assemblies, a semi-positioning gear disc (2) being fixedly connected to the top of the tool body (1), and a positioning protrusion (3) being arranged on the outer side of the tool body (1); Features: An oil storage chamber (4) is provided on the inner side of the tool body (1), and lubricating oil is injected into the oil storage chamber (4). Rotating gears (5) having the same diameter as the semi-positioning gear disc (2) are rotatably connected in the oil storage chambers (4) of the tool body (1), and the tooth specifications of the semi-positioning gear disc (2) are the same as those of the rotating gear (5).

2. The engine flywheel positioning tool according to claim 1, characterized in that: The liquid level of the lubricating oil is 1 / 10-1 / 4 of the diameter of the oil storage cavity (4).

3. The engine flywheel positioning tool according to claim 1, characterized in that: A rotating shaft (6) is coaxially fixed on the side wall of the rotating gear (5), a rotating hole (7) is opened on the side wall of the tooling body (1), and the rotating shaft (6) is rotatably connected in the rotating hole (7).

4. The engine flywheel positioning tool according to claim 1, characterized in that: A positioning rotating rod (8) is also fixed above the side wall of the tooling body (1); a rotating seat (9) is rotatably connected to the rod body of the positioning rotating rod (8); a top rod (10) is installed through the rotating seat (9); and the end of the positioning rotating rod (8) is fixedly connected to a limiting head (11).

5. The engine flywheel positioning tool according to claim 4, characterized in that: The abutting end of the push rod (10) is a round head.

6. The engine flywheel positioning tool according to claim 5, characterized in that: At least one rotating side ear is fixed to the rotating end of the push rod (10).

7. The engine flywheel positioning tool according to any one of claims 1 to 6, characterized in that: At least one positioning hole (12) is formed through the side wall of the tool body (1).

8. The engine flywheel positioning tool according to claim 7, characterized in that: An avoidance groove (13) is also provided at the location of the positioning hole (12).

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