Adaptive tool for disassembling and assembling belt pulley

Abstract

The utility model belongs to the technical field of belt pulley disassembly and assembly, and discloses an adaptive tool for belt pulley disassembly and assembly, which comprises a body, a containing cavity is formed in the body, the body is provided with a connecting end and a force application end opposite to the connecting end, and the connecting end is provided with a passing opening which is communicated with the containing cavity and can allow a bolt to pass through. The connecting end is provided with the fixing holes distributed in the circumferential direction of the passing opening, the limiting notch capable of containing the torque amplifier handle is formed in the side portion of the force application end, and therefore after a worker holds the torque amplifier handle, rotation of the main belt wheel can be limited at the same time, the assembling difficulty of the main belt wheel is lowered, and the assembling efficiency is improved. The assembling efficiency of the main belt pulley is improved, and the assembling cost of the main belt pulley is reduced. The phenomena that the torque amplifier is easily separated from the bolt for fixing the main belt pulley and the wrench is easily separated from the torque amplifier are avoided, the assembling difficulty of the main belt pulley is further reduced, and the assembling efficiency of the main belt pulley is further improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of pulley disassembly and assembly, and particularly relates to a fitting tool for pulley disassembly and assembly. BACKGROUND

[0002] The pulley is an important component of an engine, and an engine usually has multiple pulleys, such as a main pulley connected to a crankshaft, a secondary pulley connected to a camshaft, and the like. The multiple pulleys can transmit power of the engine to multiple accessories, such as a generator, a steering assist pump, a water pump, an air conditioner compressor, and the like, by a belt drive, so that the accessories work normally.

[0003] At present, the main pulley is usually fixedly connected to the end of the crankshaft by means of bolts. In order to ensure the stability of the main pulley, a large torque needs to be applied to the bolts for fixing the main pulley. In order to reduce the difficulty of applying the required torque to the bolts for fixing the main pulley, a torque amplifier is generally used to assist in tightening the bolts. However, when the bolts are tightened, the crankshaft will rotate with the bolts, thereby affecting the fixing efficiency of the main pulley.

[0004] In order to improve the fixing efficiency of the main pulley, at least one worker needs to hold the handle of the torque amplifier and apply a force opposite to that of a wrench to the handle of the torque amplifier, and then another worker uses a tool to clamp the pulley, and a worker tightens the wrench. Thus, it is difficult to fix the main pulley, and the torque amplifier is easy to be detached from the bolt, and the wrench is easy to be detached from the torque amplifier, thereby further increasing the difficulty of fixing the main pulley. CONTENT OF THE INVENTION

[0005] The application provides a fitting tool for pulley disassembly and assembly, so as to reduce the assembly difficulty of the main pulley and improve the assembly efficiency of the main pulley.

[0006] The technical scheme adopted by the application is as follows:

[0007] A fitting tool for pulley disassembly and assembly, comprising a body, the body has a containing cavity in the interior, the body has a connecting end and a force applying end opposite to the connecting end, the connecting end is provided with a passing opening in communication with the containing cavity and capable of allowing a bolt to pass through, and the connecting end is provided with a fixing hole distributed along the circumference of the passing opening, and the side of the force applying end is provided with a limiting notch capable of containing a handle of a torque amplifier.

[0008] By adopting the technical scheme, when the adaptation tool in the application is used to assist in installing the main pulley, the fixing hole is first aligned with the threaded hole on the main pulley, then the bolt is threaded through the fixing hole and is screwed into the threaded hole on the main pulley to achieve fixed connection of the adaptation tool and the main pulley, then the bolt for fixing the main pulley and the torque amplifier are installed, so that the bolt for fixing the main pulley is threaded into the crankshaft, the handle of the torque amplifier is located in the limiting notch, the handle of the torque amplifier is clamped and matched with the adaptation tool, then the wrench is connected to the input end of the torque amplifier, and finally only one worker holds the handle of the torque amplifier, and the other worker applies a rotating force to the wrench to complete the installation of the bolt for fixing the main pulley.

[0009] In summary, since the adaptation tool is fixedly connected to the main pulley and the handle of the torque amplifier is clamped and matched with the adaptation tool, after a worker holds the handle of the torque amplifier, the rotation of the main pulley is limited, thereby avoiding the phenomenon that a separate worker needs to use an auxiliary tool to clamp the main pulley, and the assembly difficulty of the main pulley is reduced, the assembly efficiency of the main pulley is improved, and the assembly cost of the main pulley is reduced. In addition, through the provision of the adaptation tool, the phenomenon that the torque amplifier is easily separated from the bolt for fixing the main pulley and the wrench is easily separated from the torque amplifier is avoided, thereby further reducing the assembly difficulty of the main pulley and further improving the assembly efficiency of the main pulley.

[0010] Optionally, the side of the body is provided with a visual window corresponding to the torque display area of the torque amplifier.

[0011] By adopting the technical scheme, since the visual window is provided corresponding to the torque display area of the torque amplifier, when a worker installs the bolt for fixing the main pulley, the worker can observe the torque of the torque amplifier through the visual window to ensure that the bolt for fixing the main pulley is installed in place, and the phenomenon that the bolt for fixing the main pulley is broken due to a large force applied to the bolt for fixing the main pulley is avoided, thereby ensuring the fixing effect of the main pulley.

[0012] Optionally, the connecting end is provided with a protruding portion, the diameter of the protruding portion is smaller than the diameter of the body, and the through hole and the fixing hole are both arranged on the protruding portion.

[0013] By adopting the technical scheme, since the diameter of the protruding portion is smaller than the diameter of the body, the end face of the protruding portion can abut against the main pulley, so that the contact area of the adapting tool and the main pulley is increased, the connecting stability of the adapting tool and the main pulley is increased, the protruding portion can also position the adapting tool, the adapting tool is conveniently installed in place, and the assembly efficiency of the main pulley is further improved.

[0014] Optionally, the connecting end is provided with a protruding portion, the diameter of the protruding portion is smaller than the diameter of the body, an edge is arranged on the end of the protruding portion away from the force applying end in the circumferential direction, the diameter of the edge is equal to the diameter of the body, the through hole is arranged on the protruding portion, and the fixing hole is arranged on the edge.

[0015] By adopting the technical scheme, since the diameter of the protruding portion is smaller than the diameter of the body, the diameter of the edge is equal to the diameter of the body, the through hole is arranged on the protruding portion, and the fixing hole is arranged on the edge, the protruding portion can form an avoidance with the protruding ribs on the main pulley, so that the adapting tool is conveniently installed on the main pulley, the edge can also increase the contact area of the adapting tool and the main pulley, the connecting stability of the adapting tool and the main pulley is increased, and the assembly efficiency of the main pulley is ensured.

[0016] Optionally, the edge is provided with a plurality of avoidance notches, and each avoidance notch is located between two adjacent fixing holes.

[0017] By adopting the technical scheme, when the adapting tool is installed, the avoidance notches are aligned with the protruding ribs on the main pulley, then a pressure is applied to the adapting tool in the direction of the main pulley, so that the adapting tool moves in the direction of the main pulley, the edge passes over the protruding ribs on the main pulley and abuts against the main pulley, the assembly efficiency of the adapting tool is improved, and the assembly efficiency of the main pulley is improved.

[0018] Optionally, each avoidance notch has side walls located on both sides of the avoidance notch and a bottom wall located at the bottom of the avoidance notch, and the distance between the two side walls gradually decreases in the direction close to the bottom wall.

[0019] By adopting the technical scheme, since the distance between the two side walls gradually decreases in the direction close to the bottom wall, the structural strength of the edge is ensured, the phenomenon that the positions of the fixing holes arranged on the edge are prone to deformation is avoided, and the service life of the adapting tool is ensured.

[0020] Optionally, the bottom wall is protrudingly arranged on the side where the body center axis is located.

[0021] By adopting the above technical solution, since the bottom wall protrudes towards the side where the central axis of the body is located, on the one hand, the area of ​​the clearance gap is guaranteed to ensure the clearance gap and the rib on the main pulley to avoid each other, and on the other hand, the structural strength along the edge can be guaranteed to ensure the service life of the adapter tool.

[0022] Optionally, the body is provided with reinforcing ribs on its exterior, and the reinforcing ribs extend circumferentially along the limiting notch.

[0023] By adopting the above technical solution, since the body is provided with reinforcing ribs on the outside and the reinforcing ribs extend circumferentially along the limiting notch, the reinforcing ribs can strengthen the opening wall of the limiting notch, so as to avoid the phenomenon that the opening wall of the limiting notch is prone to deformation, thereby increasing the structural strength of the adapter tool and ensuring the service life of the adapter tool.

[0024] Optionally, the body is provided with a support rib on its exterior. The support rib extends circumferentially along the body, and both ends of the support rib are respectively connected to the reinforcing ribs located on both sides of the limiting notch.

[0025] By adopting the above technical solution, since the support rib extends circumferentially along the body and the two ends of the support rib are respectively connected to the reinforcing ribs located on both sides of the limiting notch, the support rib can support the reinforcing rib, thereby further increasing the structural strength of the limiting notch wall, thus further avoiding the phenomenon that the limiting notch wall may deform, and further extending the service life of the adapter tool.

[0026] Optionally, at least two support ribs are provided at intervals, one of which is located at the opening of the limiting notch and the other is located at the bottom of the limiting notch.

[0027] By adopting the above technical solution, since at least two support ribs are provided at intervals, with one support rib located at the opening of the limiting notch and the other at the bottom of the limiting notch, the support ribs provide support for both the opening and the bottom of the limiting notch, thereby improving the support effect of the reinforcing ribs and further preventing deformation of the opening wall of the limiting notch, thus further extending the service life of the adapter tool. In addition, the intervals between multiple support ribs also allow space for the worker's hands, making it easier for the worker to pick up the adapter tool.

[0028] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0029] 1. The adaptation tool in the application comprises a body, the inside of the body has a containing cavity, the body has a connecting end and a force applying end opposite to the connecting end, the connecting end is provided with a passing opening in communication with the containing cavity and capable of allowing a bolt to pass through, and the connecting end is provided with fixing holes distributed along the circumference of the passing opening, the side of the force applying end is provided with a limiting notch capable of containing the handle of the torque amplifier, so that after the staff holds the handle of the torque amplifier, the rotation of the main pulley can be limited at the same time, thereby avoiding the phenomenon that a staff needs to use an auxiliary tool to clamp the main pulley, and the assembly difficulty of the main pulley is reduced, the assembly efficiency of the main pulley is improved, and the assembly cost of the main pulley is reduced; in addition, through the setting of the adaptation tool, the phenomenon that the torque amplifier is easily separated from the bolt for fixing the main pulley and the wrench is easily separated from the torque amplifier is avoided, thereby further reducing the assembly difficulty of the main pulley and further improving the assembly efficiency of the main pulley.

[0030] 2. The side of the body in the application is provided with a visual window, the visual window is provided corresponding to the torque display area of the torque amplifier, so that when the staff installs the bolt for fixing the main pulley, the torque of the torque amplifier can be observed through the visual window, so as to ensure that the bolt for fixing the main pulley is installed in place, and the phenomenon that the bolt for fixing the main pulley is broken due to too large force applied to the bolt for fixing the main pulley is avoided, thereby ensuring the fixing effect of the main pulley.

[0031] 3. The connecting end in the application is provided with a protruding part, the diameter of the protruding part is smaller than the diameter of the body, the passing opening and the fixing hole are both arranged on the protruding part, so that the end face of the protruding part can abut against the main pulley, so as to increase the contact area of the adaptation tool and the main pulley, thereby increasing the connection stability of the adaptation tool and the main pulley, and the setting of the protruding part can also position the adaptation tool, so as to facilitate the installation of the adaptation tool in place, thereby further improving the assembly efficiency of the main pulley. BRIEF DESCRIPTION OF DRAWINGS

[0032] The drawings described herein are used to provide further understanding of the application, and form a part of the application. The schematic embodiments of the application and the description thereof are used to explain the application, and do not constitute improper limitation on the application. In the drawings:

[0033] Figure 1 It is a structure schematic view of the adaptation tool in one embodiment of the application;

[0034] Figure 2 It is another perspective structure schematic view of the adaptation tool in one embodiment of the application;

[0035] Figure 3Another perspective view of the fitting tool according to an embodiment of the present application;

[0036] Figure 4 Another perspective view of the fitting tool according to an embodiment of the present application;

[0037] Figure 5 Another perspective view of the fitting tool according to an embodiment of the present application;

[0038] Figure 6 Another perspective view of the fitting tool according to an embodiment of the present application;

[0039] Figure 7 Another perspective view of the fitting tool according to an embodiment of the present application;

[0040] Figure 8 Another perspective view of the fitting tool according to an embodiment of the present application;

[0041] Reference Signs:

[0042] 1, body; 11, through hole; 12, fixing hole; 13, limiting notch; 14, visual window; 15, protrusion; 151, edge; 152, avoiding notch; 16, reinforcing rib; 161, supporting rib. DETAILED DESCRIPTION

[0043] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail with reference to the accompanying drawings.

[0044] In the following description, a lot of specific details are set forth in order to facilitate a thorough understanding of the present application, however, the present application can also be implemented in other ways different from those described herein, therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below.

[0045] In addition, in the description of the present application, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation of the present application.

[0046] In the present application, unless specifically defined and limited otherwise, the terms "mounting", "connected", "connection", "fixed", and the like, should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection, and can also be communication; can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. In the description of the specification, the description of the terms "embodiment", "example", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] Reference Figures 1 to 8 Disclosed is a belt pulley dismounting adapter tool, which comprises a body 1, the body 1 has a receiving cavity in the interior, the body 1 has a connecting end and a force applying end opposite to the connecting end, the connecting end is provided with a passing opening 11 communicating with the receiving cavity and capable of allowing a bolt to pass through, and the connecting end is provided with fixing holes 12 distributed in the circumferential direction of the passing opening 11, and the side of the force applying end is provided with a limiting notch 13 capable of accommodating a torque amplifier handle.

[0049] When the adapter tool in the present application is used to assist in installing the main belt pulley, the fixing holes 12 are first aligned with the threaded holes on the main belt pulley, then a bolt is passed through the fixing holes 12 and threadedly connected to the threaded holes on the main belt pulley to achieve fixed connection of the adapter tool and the main belt pulley, then the bolt for fixing the main belt pulley and the torque amplifier are installed, so that the bolt for fixing the main belt pulley is passed into the crankshaft, and the handle of the torque amplifier is located in the limiting notch 13, so that the handle of the torque amplifier is clamped and matched with the adapter tool, then a wrench is connected to the input end of the torque amplifier, and finally only one worker holds the handle of the torque amplifier, and the other worker applies a rotating force to the wrench to complete the installation of the bolt for fixing the main belt pulley.

[0050] In conclusion, since the adapting tool is fixedly connected to the main pulley, the handle of the torque amplifier is clamped with the adapting tool, and then the staff can simultaneously limit the rotation of the main pulley after holding the handle of the torque amplifier, thereby avoiding the phenomenon that a staff needs to use an auxiliary tool to clamp the main pulley, and further reducing the assembly difficulty of the main pulley, so as to improve the assembly efficiency of the main pulley and reduce the assembly cost of the main pulley. In addition, through the setting of the adapting tool, the phenomenon that the torque amplifier is easily separated from the bolt for fixing the main pulley and the wrench is easily separated from the torque amplifier is avoided, thereby further reducing the assembly difficulty of the main pulley, so as to further improve the assembly efficiency of the main pulley.

[0051] In a preferred embodiment, with reference to Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 8 , the side of the body 1 is provided with a visual window 14, which is provided corresponding to the torque display area of the torque amplifier, so that the staff can observe the torque of the torque amplifier through the visual window 14 when installing the bolt for fixing the main pulley, so as to ensure that the bolt for fixing the main pulley is installed in place, and also avoid the phenomenon that the bolt for fixing the main pulley is broken due to too large force, thereby ensuring the fixing effect of the main pulley.

[0052] The application does not make specific limitations on the forming method of the visual window 14. Preferably, with reference to Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 8 , the visual window 14 is formed as a hole structure provided on the side of the body 1, so as to reduce the production difficulty of the adapting tool. In other embodiments, the visual window 14 is formed by a transparent area provided on the side of the body 1.

[0053] The application does not make specific limitations on the setting method of the port 11 and the fixing hole 12, which can adopt any one of the following embodiments:

[0054] Embodiment one, in this embodiment, with reference to Figures 1 to 3 , the connecting end is provided with a protruding portion 15, the diameter of the protruding portion 15 is smaller than the diameter of the body 1, and the port 11 and the fixing hole 12 are both provided on the protruding portion 15.

[0055] It can be understood that the protruding portion 15 is a tubular structure closed at one end away from the body 1, and the port 11 and the fixing hole 12 are provided at the one end of the protruding portion 15 away from the body 1.

[0056] Since the diameter of the protruding portion 15 is smaller than the diameter of the body 1, the end face of the protruding portion 15 can abut against the main pulley, so as to increase the contact area between the adapting tool and the main pulley, thereby increasing the connection stability between the adapting tool and the main pulley. Meanwhile, the protruding portion 15 can also position the adapting tool, so as to facilitate the installation of the adapting tool, thereby further improving the assembly efficiency of the main pulley.

[0057] In the second embodiment, referring to Figures 4 to 8 , the connecting end is provided with a protruding portion 15, the diameter of the protruding portion 15 is smaller than the diameter of the body 1, one end of the protruding portion 15 away from the force applying end is provided with a flange 151 along the circumference thereof, the diameter of the flange 151 is equal to the diameter of the body 1, the through hole 11 is arranged on the protruding portion 15, and the fixing hole 12 is arranged on the flange 151.

[0058] It can be understood that the protruding portion 15 is a tubular structure closed at one end away from the body 1, the through hole 11 is arranged on the one end of the protruding portion 15 away from the body 1, and the flange 151 is arranged on the one end of the protruding portion 15 away from the body 1.

[0059] Since the diameter of the protruding portion 15 is smaller than the diameter of the body 1, the diameter of the flange 151 is equal to the diameter of the body 1, the through hole 11 is arranged on the protruding portion 15, and the fixing hole 12 is arranged on the flange 151, the protruding portion 15 can form an avoidance with the protruding ribs on the main pulley, so as to facilitate the installation of the adapting tool on the main pulley. Meanwhile, the arrangement of the flange 151 can also increase the contact area between the adapting tool and the main pulley, thereby increasing the connection stability between the adapting tool and the main pulley, and further ensuring the assembly efficiency of the main pulley.

[0060] The structure of the flange 151 is not limited in the present application, and any one of the following embodiments can be adopted:

[0061] In the first embodiment, referring to Figure 6 , the flange 151 is an annular structure arranged on the protruding portion 15, so as to reduce the production difficulty of the adapting tool.

[0062] In the second embodiment, referring to Figure 7 , the flange 151 is provided with a plurality of avoidance notches 152, and each avoidance notch 152 is located between two adjacent fixing holes 12.

[0063] When installing the adapting tool, the avoiding gap 152 is aligned with the convex rib on the main pulley, and then pressure is applied to the adapting tool towards the main pulley, so that the adapting tool moves towards the main pulley, and the side edge 151 is in contact with the convex rib on the main pulley, thereby improving the assembly efficiency of the adapting tool, and further improving the assembly efficiency of the main pulley.

[0064] Further, referring to Figure 7 Each avoiding gap 152 has side walls on both sides thereof and a bottom wall at the bottom thereof, and the distance between the two side walls gradually decreases in the direction close to the bottom wall, thereby ensuring the structural strength of the side edge 151 to avoid the phenomenon that the position where the fixing hole 12 is arranged on the side edge 151 is easily deformed, and further ensuring the service life of the adapting tool.

[0065] Further, referring to Figure 7 The bottom wall is protrudingly arranged towards the side where the central axis of the body 1 is located, which on the one hand ensures the area of the avoiding gap 152 to ensure the avoiding effect of the avoiding gap 152 and the convex rib on the main pulley, and on the other hand ensures the structural strength of the side edge 151 to ensure the service life of the adapting tool.

[0066] In other embodiments, the adapting tool can also have a structure with a constant diameter along the axial direction thereof, and the connecting end of the adapting tool is closed, and the port 11 and the fixing hole 12 are arranged on the connecting end of the body 1.

[0067] In a preferred embodiment, referring to Figure 8 The body 1 is externally provided with a reinforcing rib 16, which is arranged along the circumference of the limiting gap 13, thereby enabling the reinforcing rib 16 to reinforce the port wall of the limiting gap 13 to avoid the phenomenon that the port wall of the limiting gap 13 is easily deformed, thereby increasing the structural strength of the adapting tool, and further ensuring the service life of the adapting tool.

[0068] Further, referring to Figure 8 The body 1 is externally provided with a supporting rib 161, which is arranged along the circumference of the body 1, and the two ends of the supporting rib 161 are respectively connected to the reinforcing ribs 16 on both sides of the limiting gap 13, thereby enabling the supporting rib 161 to support the reinforcing ribs 16 to further increase the structural strength of the port wall of the limiting gap 13, thereby further avoiding the phenomenon that the port wall of the limiting gap 13 is possibly deformed, and further prolonging the service life of the adapting tool.

[0069] Further, referring to Figure 8The support ribs 161 are at least two, one of which is arranged at the opening of the limiting notch 13, and the other is arranged at the bottom of the limiting notch 13, so that the support ribs 161 support the opening and the bottom of the limiting notch 13 respectively, thereby improving the supporting effect of the reinforcing rib 16, further avoiding the deformation of the opening wall of the limiting notch 13, and further prolonging the service life of the adapter tool. In addition, the plurality of support ribs 161 are arranged at intervals, so that the space between the support ribs 161 can accommodate the hands of the workers, thereby facilitating the workers to take the adapter tool.

[0070] It should be noted that the opening of the limiting notch 13 refers to the end of the limiting notch 13 away from the connecting end, and the bottom of the limiting notch 13 refers to the end of the limiting notch 13 away from the force applying end.

[0071] Preferably, the support ribs 161 are two, one of which is arranged at the opening of the limiting notch 13, and the other is arranged at the bottom of the limiting notch 13.

[0072] The places not mentioned in the application can be realized by using or referring to the existing technology.

[0073] Each embodiment in the specification is described in a progressive manner, and the same or similar parts between each embodiment can be referred to each other. Each embodiment focuses on the difference from other embodiments.

[0074] The above is only an embodiment of the application and is not used to limit the application. The application can be variously changed and modified by those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the application shall be included in the scope of the claims of the application.

Claims

1. A tool for disassembling and assembling pulleys, characterized in that, The utility model provides a torque amplifier handle, which comprises a body (1) having a containing cavity in the interior of the body (1), the body (1) having a connecting end and a force applying end opposite to the connecting end, the connecting end being provided with a passing port (11) in communication with the containing cavity and capable of allowing a bolt to pass through, and the connecting end being provided with fixing holes (12) distributed along the circumference of the passing port (11), and the side of the force applying end being provided with a limiting notch (13) capable of containing a torque amplifier handle.

2. The pulley dismounting adapter tool according to claim 1, characterized in that, The side of the body (1) is provided with a visual window (14) corresponding to a torque display area of the torque amplifier.

3. The pulley dismounting adapter tool according to claim 1, characterized in that, The connecting end is provided with a protruding part (15) having a diameter smaller than that of the body (1), and the passing port (11) and the fixing holes (12) are arranged on the protruding part (15).

4. The pulley dismounting adapter tool according to claim 1, characterized in that, The connecting end is provided with a protruding part (15) having a diameter smaller than that of the body (1), and the passing port (11) and the fixing holes (12) are arranged on the protruding part (15).

5. The pulley dismounting adapter tool according to claim 4, characterized in that The side of the body (1) is provided with a visual window (14) corresponding to a torque display area of the torque amplifier.

6. The adapter tool for disassembling a belt pulley according to claim 5, wherein The connecting end is provided with a protruding part (15) having a diameter smaller than that of the body (1), and the passing port (11) and the fixing holes (12) are arranged on the protruding part (15).

7. The pulley dismounting adapter tool according to claim 6, characterized in that The side of the body (1) is provided with a visual window (14) corresponding to a torque display area of the torque amplifier.

8. The adapter tool for disassembling a belt pulley according to any one of claims 1 to 7, wherein The connecting end is provided with a protruding part (15) having a diameter smaller than that of the body (1), and the passing port (11) and the fixing holes (12) are arranged on the protruding part (15).

9. The pulley dismounting adapter tool according to claim 8, characterized in that The side of the body (1) is provided with a visual window (14) corresponding to a torque display area of the torque amplifier.

10. The pulley dismounting adapter tool according to claim 9, characterized in that The connecting end is provided with a protruding part (15) having a diameter smaller than that of the body (1), and the passing port (11) and the fixing holes (12) are arranged on the protruding part (15). The side of the body (1) is provided with a visual window (14) corresponding to a torque display area of the torque amplifier. The connecting end is provided with a protruding part (15) having a diameter smaller than that of the body (1), and the passing port (11) and the fixing holes (12) are arranged on the protruding part (15). The side of the body (1) is provided with a visual window (14) corresponding to a torque display area of the torque amplifier. The connecting end is provided with a protruding part (15) having a diameter smaller than that of the body (1), and the passing port (11) and the fixing holes (12) are arranged on the protruding part (15). The side of the body (1) is provided with a visual window (14) corresponding to a torque display area of the torque amplifier. The connecting end is provided with a protruding part (15) having a diameter smaller than that of the body (1), and the passing port (11) and the fixing holes (12) are arranged on the protruding part (15). The side of the body (1) is provided with a visual window (14) corresponding to a torque display area of the torque amplifier. The connecting end is provided with a protruding part (15) having a diameter smaller than that of the body (1), and the passing port (11) and the fixing holes (12) are arranged on the protruding part (15). The side of the body (1) is provided with a visual window (14) corresponding to a torque display area of the torque amplifier. The connecting end is provided with a protruding part (15) having a diameter smaller than that of the body (1), and the passing port (11) and the fixing holes (12) are arranged on the protruding part (15). The side of the body (1) is provided with a visual window (14) corresponding to a torque display area of the torque amplifier.

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