Disassembling and assembling tool for diesel engine rocker box cover of DF type diesel locomotive

Abstract

The utility model provides a disassembly and assembly tool for a DF type diesel locomotive diesel engine rocker box cover, and relates to the technical field of mechanical maintenance tools. The disassembling and assembling tool is used for disassembling and assembling a cover cap of the rocker arm box, a hand wheel is arranged on the cover cap and provided with a disassembling and assembling part, and the disassembling and assembling tool comprises a first connector, a second connector and a reinforcing connecting part. The first connector is connected with the dismounting part of the hand wheel. The second connector is used for being connected with an operation tool. In the first direction, the first connector and the second connector protrude out of the two end faces of the reinforcing connecting part respectively, the reinforcing connecting part is provided with an avoiding space, the side wall of the reinforcing connecting part is provided with a first lateral opening communicated with the avoiding space, and the first lateral opening is provided with a guide structure so that at least part of the hand wheel can be guided into the avoiding space. The disassembling and assembling tool can solve the problem that time and labor are wasted due to the fact that the cover nut needs to be switched back and forth in the process of locking or loosening the cover nut.

Description

Technical Field

[0001] This application relates to the field of mechanical maintenance tools, specifically to a tool for disassembling and assembling the rocker arm box cover of a DF type diesel locomotive. Background Technology

[0002] The rocker arm box cover of a diesel locomotive is equipped with studs, and a handwheel locks onto the studs to seal the lubricating oil of the various components inside the rocker arm box. During the assembly, testing, and operation of the diesel engine and the diesel locomotive, the cylinder head cover needs to be frequently installed and removed.

[0003] During cylinder cover installation, first manually rotate the handwheel and the stud. Once rotated to a certain extent, tighten using a tool (e.g., a wrench). The tool can engage the nut below the handwheel. This nut is typically hexagonal. Therefore, the tool can engage the two opposite outer surfaces of the nut to tighten it. During cylinder cover removal, first use the tool to engage the two opposite outer surfaces of the nut below the handwheel to loosen it. Then, manually rotate the handwheel to loosen the stud, allowing the cylinder cover to be removed.

[0004] In related technologies, when using tools to tighten or loosen nuts, the operating space is limited due to the high position of the diesel engine rocker arm box. Furthermore, the nut is located below the handwheel, and the handwheel above the nut can easily restrict the tool's movement on the nut when the tool is applied. The tool needs to be switched back and forth during tightening and loosening, which is time-consuming and labor-intensive. In particular, the diesel engine of a diesel locomotive has multiple covers, which poses significant challenges to installation and disassembly maintenance, resulting in a difficult, time-consuming, labor-intensive, and inefficient maintenance process. Utility Model Content

[0005] This application provides a tool for disassembling and assembling the rocker arm box cover of a DF type diesel locomotive, which can solve the problem of having to switch back and forth during the process of tightening or loosening the cover nut, resulting in time and effort.

[0006] This application provides a tool for disassembling and assembling the rocker arm box cover of a DF type diesel locomotive, used for disassembling and assembling the cover of the rocker arm box. The cover is equipped with a handwheel, which has a disassembly and assembly part, comprising:

[0007] The first connector is connected to the disassembly / assembly part of the handwheel;

[0008] The second connector is used to connect to the operating tool;

[0009] The reinforcing connecting part is provided with an avoiding space, and the sidewall of the reinforcing connecting part is provided with a first lateral opening which is communicated with the avoiding space and is provided with a guide structure to guide at least part of the hand wheel into the avoiding space.

[0010] The first joint can be used to be fixedly connected with the disassembling part. The operating tool can act on the second joint. Since the first joint and the second joint are respectively located at two end faces of the reinforcing connecting part, the reinforcing connecting part can be used to transmit the torsional force of the operating tool acting on the second joint to the first joint, so as to realize the torsion of the disassembling part at the first joint and the locking or loosening of the disassembling part, and the installation or disassembly of the cover.

[0011] The reinforcing connecting part is provided with an avoiding space which can accommodate at least part of the hand wheel, and the first joint and the second joint are respectively located at two end faces of the reinforcing connecting part. Therefore, the second joint is not easily affected by the hand wheel above the second joint, and the movement path of the operating tool is not easily limited by the hand wheel when the operating tool exerts the torsional force on the second joint. The operating tool does not need to be switched back and forth, which is beneficial to improve the efficiency of locking or loosening the disassembling part.

[0012] In addition, the cover is usually made of cast aluminum material. If the torsional force is too large, the cover is prone to be broken when the locking or loosening force is exerted on the disassembling part. However, if the torsional force is too small, the sealing effect of the cover is affected, and the phenomenon of oil leakage of the sealing ring occurs. Since the movement space of the operating tool can not be easily affected by the hand wheel, the worker can better control the torsional force exerted on the second joint during the use of the operating tool. The torsional force acting on the second joint can be transmitted to the connection between the first joint and the disassembling part through the reinforcing connecting part, so that the force acting on the first joint and the disassembling part can be better controlled. On the one hand, the sealing effect of the cover can be ensured, and the possibility of oil leakage can be reduced. On the other hand, the phenomenon that the cover is broken due to too large torsional force can be avoided.

[0013] In addition, the DF type diesel engine rocker box cover disassembling tool transmits the force of the operating tool to the disassembling part, so the force exerted by the DF type diesel engine rocker box cover disassembling tool is not directly applied to the disassembling part. Therefore, the force exerted by the operating tool on the disassembling part can be buffered, which is beneficial to reduce the possibility of breaking the cover.

[0014] According to one embodiment of the present application, the first joint is provided with a first interface and a second lateral opening which are communicated with each other. When at least part of the hand wheel is guided into the avoiding space by the guide structure, the disassembling part can enter the first interface through the second lateral opening.

[0015] According to one embodiment of the present application, the reinforcing connector is provided with a first wall body connected with the first joint, and the guide structure comprises a guide slide, and the first lateral opening penetrates part of the first wall body in the second direction to form the guide slide on the first wall body.

[0016] According to one embodiment of the present application, the opening end of the guide slide is provided with opposite first and second inclined surfaces.

[0017] According to one embodiment of the present application, the reinforcing connector is a column body, the first joint is located on the central axis of the reinforcing connector, and the second joint is located on the central axis of the reinforcing connector.

[0018] According to one embodiment of the present application, the shape of the first interface matches at least part of the shape of the dismounting part, so that the dismounting part is limited by the inner wall of the first interface.

[0019] According to one embodiment of the present application, the reinforcing connector is provided with a second wall body connected with the second joint, and the thickness of the first wall body is greater than or equal to the thickness of the second wall body in the first direction.

[0020] According to one embodiment of the present application, the second joint is provided with a second interface for connecting with the operating tool, and the second interface penetrates the first wall body in the first direction.

[0021] According to one embodiment of the present application, the outer wall of at least one of the first joint, the second joint and the reinforcing connector is provided with a protruding structure.

[0022] According to one embodiment of the present application, the reinforcing connector further comprises a third wall body connecting the first wall body and the second wall body, and the wall thickness of the third wall body is at least 4 mm.

[0023] In addition to the technical problems solved by the above-described embodiments of the utility model, the technical features constituting the technical solutions and the beneficial effects brought by these technical features, the other technical problems solved by the DF type diesel engine rocker box cover dismounting tool of the internal combustion locomotive, the other technical features included in the technical solutions and the beneficial effects brought by these technical features will be further described in detail in the specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0024] The drawings incorporated into the specification and constituting a part of the specification show embodiments consistent with the present application and, together with the specification, serve to explain the principles of the present application.

[0025] Figure 1 Figure 1 is a perspective view of a DF-type diesel locomotive rocker box cover dismounting tool according to an embodiment of the present application;

[0026] Figure 2 Figure 2 is a side view of a DF-type diesel locomotive rocker box cover dismounting tool according to an embodiment of the present application;

[0027] Figure 3 Figure 3 is a cross-sectional view of a DF-type diesel locomotive rocker box cover dismounting tool in an application state according to an embodiment of the present application;

[0028] Figure 4 Figure 4 is a cross-sectional view of a DF-type diesel locomotive rocker box cover dismounting tool according to an embodiment of the present application;

[0029] Figure 5 Figure 5 is another perspective view of a DF-type diesel locomotive rocker box cover dismounting tool according to an embodiment of the present application;

[0030] Figure 6 Figure 6 is a bottom view of a DF-type diesel locomotive rocker box cover dismounting tool according to an embodiment of the present application.

[0031] BRIEF DESCRIPTION OF THE DRAWINGS

[0032] 100 - DF-type diesel locomotive rocker box cover dismounting tool;

[0033] 110 - first joint; 111 - first interface; 112 - second lateral opening;

[0034] 120 - second joint; 121 - second interface;

[0035] 130 - reinforcing connection; 130a - avoiding space; 130b - first lateral opening; 130c - guiding slide; 131 - first wall body; 1311 - first inclined surface; 1312 - second inclined surface; 132 - second wall body; 133 - third wall body;

[0036] 200 - hand wheel; 210 - hand wheel body; 220 - connecting column; 230 - dismounting part;

[0037] X - first direction; Y - second direction.

[0038] The above drawings have shown specific embodiments of the present application, which will be described in more detail hereinafter. These drawings and written description are not intended to restrict the scope of the present application concept in any way, but to illustrate the present application concept to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0039] The exemplary embodiments will be described in detail herein with reference to the attached drawings. In the following description, like reference numerals refer to like elements throughout the description. The following exemplary embodiments described are not representative of all embodiments consistent with the present application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the present application as detailed in the appended claims. It is clear that the described embodiments are a part of, but not all of, embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application.

[0040] The main function of the rocker box of a diesel engine is to control the intake and exhaust of the engine cylinder to ensure the normal operation of the engine. When the engine is running, the rocker box and the cover bear the pressure and vibration from the cylinder. In addition, the rocker controls the opening and closing time and angle of the valve to enable the diesel engine to obtain sufficient air and fuel and to remove the exhaust gas after combustion. In addition, the rocker box cover can prevent oil leakage in the rocker box to protect the normal operation of the engine.

[0041] When the diesel engine of a DF-type diesel locomotive (e.g., DF10D, DF4DD, etc.) is under minor repair, the rocker box cover needs to be disassembled to check the condition of the rocker, cross arm, tappet, etc. In addition, the valve clearance needs to be adjusted, and the injector needs to be checked, etc.

[0042] The rocker box cover of the diesel engine of the diesel locomotive is provided with studs, and the hand wheel is locked with the studs, which can be used to seal the lubricating oil of each component in the rocker box. During the assembly, test and operation of the diesel engine and the diesel locomotive, the cylinder cover needs to be frequently installed and disassembled.

[0043] During the installation of the cylinder cover, the hand wheel can be first held and the stud can be rotated, and when it is rotated to a certain extent, an operating tool (e.g., a wrench) can be used for locking. The operating tool can clamp the nut at the lower part of the hand wheel. The nut is usually a hexagonal nut. Therefore, the operating tool can clamp the two opposite external planes of the nut to lock the nut. Similarly, during the disassembly of the cylinder cover, the nut at the lower part of the hand wheel can be first clamped by the operating tool. Specifically, the operating tool can clamp the two opposite external planes of the nut to loosen the nut, and then the worker can hold the hand wheel to rotate the stud to loosen, so as to realize the disassembly of the cylinder cover.

[0044] In the related art, when the operating tool is used to lock or loosen the nut, the operating space is limited due to the high position of the rocker box of the diesel engine. Moreover, the nut is located at the lower part of the hand wheel, and when the operating tool acts on the nut, the hand wheel above the nut is easy to affect the movement range of the operating tool on the nut, and the operating tool needs to be switched back and forth during the process of tightening or loosening the nut, which is time-consuming and laborious. Especially, a diesel engine of an internal combustion locomotive has multiple covers, which brings great difficulty to the maintenance work such as installation and disassembly, and the maintenance process is difficult, time-consuming and laborious, and the efficiency is low.

[0045] Based on the above technical problems, the applicant improves the structure of the existing dismounting tool for dismounting the cover. In the embodiment of the present application, the first joint of the dismounting tool can be used to be fixedly connected with the dismounting part. The second joint of the dismounting tool can be connected with the operating tool to provide a force application point for the operating tool. The second joint is located at the end face of the reinforced connecting part, and at least part of the hand wheel is located in the avoiding space of the reinforced connecting part, so that the space above the second joint for connecting with the operating tool is not easily blocked by the hand wheel, and thus the operating tool no longer needs to be switched back and forth during the process of tightening or loosening the nut, which is beneficial to reduce the operation difficulty of the operating tool during use, and realizes the effect of saving time and labor.

[0046] The DF type internal combustion locomotive diesel engine rocker box cover dismounting tool 100 provided by the present application will be described below with reference to the accompanying drawings and in combination with specific embodiments. The dismounting tool 100 is referred to as dismounting tool 100 in the embodiment of the present application.

[0047] In the embodiment of the present application, the dismounting tool 100 can be used to dismount the cover of the rocker box, and the cover is provided with a hand wheel 200. The hand wheel 200 has a dismounting part 230. When the dismounting part 230 is locked to the hand wheel 200, the fixed installation of the cover can be realized, and when the dismounting part 230 is loosened from the hand wheel 200, the dismounting of the cover can be realized. The dismounting part 230 can be a nut.

[0048] Referring to Figures 1 to 3 As shown in the figure, the dismounting tool 100 can include a first joint 110, a second joint 120 and a reinforced connecting part 130. The first joint 110 can be connected with the dismounting part 230 of the hand wheel 200. The second joint 120 can be used to be connected with the operating tool. In the first direction X, the first joint 110 and the second joint 120 can respectively protrude from the two end faces of the reinforced connecting part 130. The reinforced connecting part 130 can have an avoiding space 130a. The side wall of the reinforced connecting part 130 is provided with a first lateral opening 130b which is connected with the avoiding space 130a. The first lateral opening 130b is provided with a guide structure to guide at least part of the hand wheel 200 into the avoiding space 130a.

[0049] In the embodiment, the first joint 110 of the dismounting tool 100 can be used to be fixedly connected with the dismounting part 230. The operating tool can act on the second joint 120. Since the first joint 110 and the second joint 120 are respectively located at two end faces of the reinforcing connecting part 130, the reinforcing connecting part 130 can be used to transmit the torsional force of the operating tool acting on the second joint 120 to the first joint 110, so as to realize the torsion of the dismounting part 230 at the first joint 110, and lock or release the dismounting part 230, and realize the installation or dismounting of the cover.

[0050] The reinforcing connecting part 130 has an avoiding space 130a capable of accommodating at least part of the hand wheel 200, and the first joint 110 and the second joint 120 are respectively located at two end faces of the reinforcing connecting part 130. Therefore, the second joint 120 is not easily affected by the hand wheel 200, and the movement path of the operating tool is not easily limited by the hand wheel 200 when the operating tool applies the torsional force to the second joint 120. The operating tool does not need to be switched back and forth, which is beneficial to improve the efficiency of locking or releasing the dismounting part 230.

[0051] In addition, the cover is usually made of cast aluminum material. When the locking or releasing force is applied to the dismounting part 230, if the torsional force is too large, the cover is easily broken. However, if the torsional force is too small, the sealing effect of the cover is affected, and the phenomenon of oil leakage of the sealing ring occurs. Since the movement space of the operating tool can not be easily affected by the hand wheel 200, the worker can better control the torsional force applied to the second joint 120 during the use of the operating tool. The torsional force acting on the second joint 120 can be transmitted to the connection between the first joint 110 and the dismounting part 230 through the reinforcing connecting part 130, so that the force acting on the first joint 110 and the dismounting part 230 can be better controlled. On the one hand, the sealing effect of the cover can be ensured, and the possibility of oil leakage can be reduced. On the other hand, the phenomenon that the cover is broken due to the too large torsional force can be avoided.

[0052] In addition, the operating tool is used to transmit the force to the dismounting part 230 through the dismounting tool 100. The force applied by the dismounting tool 100 is not directly applied to the dismounting part 230, so that the force applied by the operating tool to the dismounting part 230 can be buffered, and the possibility of the cover being broken can be reduced.

[0053] In the embodiment, the reinforcing connecting part 130 has a first lateral opening 130b for the hand wheel 200 to enter the avoiding space 130a. Therefore, the dismounting tool 100 can be installed on the side of the hand wheel 200 and connected with the dismounting part 230 of the hand wheel 200. Since the operation space on the cover is limited, the lateral installation of the dismounting tool 100 can occupy a small space above the hand wheel 200, and the quick connection of the dismounting tool 100 and the dismounting part 230 can be realized.

[0054] In some examples, the first joint 110 protrudes from the end surface of the reinforcing connecting portion 130, which can be used to improve the fitting strength of the disassembling tool 100 and the disassembling portion 230 of the hand wheel 200, and improve the connection reliability of the disassembling tool 100 and the disassembling portion 230.

[0055] In some examples, the second joint 120 protrudes from the end surface of the reinforcing connecting portion 130, which can be used to adapt to various specifications and models of operating tools. For example, the operating tool can be adapted to the outer wall of the second joint 120, or the operating tool can be inserted into the second interface 121 of the second joint 120.

[0056] In some examples, the operating tool can be, but is not limited to, a ratchet torque wrench, which is not limited in the embodiment of the present application.

[0057] For example, the length, width and height of the second interface 121 can be 13mm, 13mm and 20mm respectively. The disassembling portion 230 can be an M36 nut, and the first interface 111 can be adapted to match the M36 nut.

[0058] In some realizable ways, referring to Figure 2 and Figure 4 The first joint 110 of the embodiment of the present application can be provided with a first interface 111 and a second lateral opening 112 in communication. When the guide structure guides at least part of the hand wheel 200 into the avoiding space 130a, the disassembling portion 230 can enter the first interface 111 through the second lateral opening 112.

[0059] In the embodiment of the present application, the disassembling tool 100 can be connected to the disassembling portion 230 by the lateral side of the hand wheel 200. During the connection of the disassembling tool 100 and the disassembling portion 230, the hand wheel 200 can enter the avoiding space 130a of the reinforcing connecting portion 130 through the first lateral opening 130b. And the disassembling portion 230 can enter the first interface 111 of the first joint 110 through the second lateral opening 112. At least part of the disassembling portion 230 can be located in the first interface 111, and the first joint 110 and the disassembling portion 230 are fixedly connected.

[0060] In some realizable ways, referring to Figure 5 and Figure 6 The shape of the first interface 111 matches at least part of the shape of the disassembling portion 230, so as to limit the disassembling portion 230 by the inner wall of the first interface 111.

[0061] In some examples, when the dismounting part 230 is a hexagonal nut, the first interface 111 can have a set of opposite inner walls, and the inner walls match the side walls of the hexagonal nut, so that the inner walls of the first interface 111 can position the dismounting part 230 when the operating tool applies a torque to the second joint 120 of the dismounting tool 100, and the dismounting part 230 is not prone to self-rotation in the first interface 111.

[0062] In some possible implementations, referring to Figure 1 and Figure 3 , the reinforcing connection part 130 of the embodiment of the present application can be provided with a first wall body 131 connected with the first joint 110. The guide structure can include a guide slide 130c. The first lateral opening 130b penetrates part of the first wall body 131 along the second direction Y to form the guide slide 130c on the first wall body 131.

[0063] In the embodiment of the present application, the guide slide 130c formed on the first wall body 131 can be used to provide a guide function for the connection of the dismounting tool 100 and the dismounting part 230. During the installation of the dismounting tool 100 on the dismounting part 230, the hand wheel 200 can move along the guide slide 130c, so that at least part of the hand wheel 200 can enter the avoiding space 130a of the reinforcing connection part 130, and the dismounting part 230 can enter the first interface 111 of the first joint 110, thereby improving the installation efficiency of the dismounting tool 100 and the dismounting part 230 and ensuring the connection stability of the dismounting part 230 and the first joint 110.

[0064] In some examples, the hand wheel 200 can include a connecting column 220 and a hand wheel body 210. One end of the connecting column 220 is connected with the hand wheel body 210, and the other end of the connecting column 220 can be connected with the dismounting part 230.

[0065] Specifically, one end of the guide slide 130c is open to allow the connecting column 220 to slide in, and the other end of the guide slide 130c can be close to the central region of the first wall body 131. When the dismounting part 230 is located in the first interface 111 of the first joint 110 and is limited in the first interface 111, the hand wheel body 210 is located in the avoiding space 130a, and the connecting column 220 can be located in the central region of the first wall body 131.

[0066] In some possible implementations, referring to Figure 1 , Figure 5 and Figure 6 , the open end of the guide slide 130c of the embodiment of the present application is provided with opposite first and second inclined surfaces 1311 and 1312.

[0067] In this embodiment, the first inclined surface 1311 and the second inclined surface 1312 can be used to enlarge the size of the opening end of the guide slide 130c, so that the connecting post 220 of the handwheel 200 can enter the guide slide 130c more easily, which is beneficial to improving the connection efficiency between the disassembly and assembly tool 100 and the disassembly and assembly part 230 on the cover.

[0068] See also some of the possible implementation methods. Figure 3 and Figure 4 As shown, the reinforcing connection portion 130 in this embodiment can be a column. The first connector 110 is located on the central axis of the reinforcing connection portion 130, and the second connector 120 is located on the central axis of the reinforcing connection portion 130.

[0069] It is easy to understand that when the central axis of the first connector 110 is misaligned with that of the reinforcing connection 130, a torque will be generated when the operating tool applies force to the first connector 110, resulting in an increase in force and making it more difficult to work. This also easily affects the uniformity of force distribution on the reinforcing connection 130. The reinforcing connection 130 will then transmit this uneven force to the second connector 120. If the central axis of the second connector 120 is misaligned with that of the reinforcing connection 130, the uniformity of force distribution on the second connector 120 will also be affected. This will, on the one hand, easily affect the force applied to the unlocking / disassembly part 230; on the other hand, the uneven force distribution on the reinforcing connection 130 will easily affect its service life.

[0070] Therefore, the first connector 110 and the second connector 120 both correspond to the central area of ​​the reinforced connection 130, which can make the overall force on the disassembly and assembly tool 100 uniform and reduce the possibility that uneven force will affect the service life of the disassembly and assembly tool 100.

[0071] In some examples, the clearance space 130a may also be a cylindrical space. The radius of the clearance space 130a is greater than or equal to the radius of the handwheel body 210. When the radius of the handwheel body 210 is 41mm, the radius of the clearance space 130a may, but is not limited to, 41mm or 42mm.

[0072] See also some of the possible implementation methods. Figure 4 As shown, the reinforcing connection portion 130 in this embodiment may be provided with a second wall 132 connected to the second connector 120. The second connector 120 may protrude from the outer surface of the second wall 132. Along the first direction X, the thickness of the first wall 131 may be greater than or equal to the thickness of the second wall 132.

[0073] In the embodiment of the present application, the first joint 110 is arranged on the first wall body 131 and is used to be connected with the disassembling part 230. Since the first joint 110 directly contacts with the disassembling part 230 when the operating tool applies the locking or loosening force, the thickness of the first wall body 131 directly connected with the disassembling part 230 can be greater than or equal to the thickness of the second wall body 132, so as to improve the strength of the disassembling tool 100 at the first joint 110, thereby improving the service life of the disassembling tool 100.

[0074] In some implementable manners, referring to FIGS. 1 and 2, Figure 3 and Figure 4 the second joint 120 of the embodiment of the present application is provided with a second interface 121. The second interface 121 can be used to be connected with the operating tool. The second interface 121 penetrates through the first wall body 131 along the first direction X.

[0075] In the embodiment of the present application, the operating tool can be inserted into the second interface 121, and the operating tool and the second interface 121 are not easy to rotate relative to each other. The second interface 121 can be connected with the avoiding space 130a, so as to be suitable for different specifications of the operating tool. For example, part of the operating tool can pass through the second interface 121 and be located in the avoiding space 130a.

[0076] In some implementable manners, the outer wall of at least one of the first joint 110, the second joint 120 and the reinforcing connecting part 130 is provided with a convex structure.

[0077] By arranging the convex structure on the outer wall of at least one of the first joint 110, the second joint 120 and the reinforcing connecting part 130, the friction of the outer wall of the disassembling tool 100 can be increased, so that when the worker holds the disassembling tool 100, the disassembling tool 100 can be prevented from being grabbed unstably and then falling off.

[0078] In some examples, the disassembling tool 100 can be made of metal material. The outer wall of at least one of the first joint 110, the second joint 120 and the reinforcing connecting part 130 can be etched with a network structure, so as to increase the friction of the outer wall surface of the disassembling tool 100.

[0079] In some implementable manners, referring to FIG. 3, Figure 4 the reinforcing connecting part 130 of the embodiment of the present application can further include a third wall body 133. The third wall body 133 can connect the first wall body 131 and the second wall body 132. The wall thickness of the third wall body 133 is at least 4 mm.

[0080] In the embodiments of the present application, since the reinforcing connecting part 130 has the avoiding space 130a, the wall thickness of the third wall body 133 easily affects the overall strength of the dismounting tool 100. When the wall thickness of the third wall body 133 is less than 4 mm, the strength of the reinforcing connecting part 130 is weak. When the operating tool exerts a force on the second interface 121, if the strength of the reinforcing connecting part 130 is not enough, the reinforcing connecting part 130 is easily broken, thereby affecting the normal use of the dismounting tool 100.

[0081] It should be noted that the numerical values and numerical ranges involved in the present application are approximate values, and there may be a certain range of error due to the manufacturing process, which can be considered negligible by those skilled in the art.

[0082] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood in a broad sense, for example, it can be fixedly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0083] In the description of the present application, it should be understood that the terms "center", "length", "width", "thickness", "top end", "bottom end", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", "axial", "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 position or element referred to must have a particular orientation, a particular configuration and operation, and therefore cannot be understood as a limitation on the present application.

[0084] In the embodiments of the present application or the implied device or element must have a specific orientation, a specific orientation configuration and operation, and therefore cannot be understood as a limitation on the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified and specified.

[0085] The terms "first", "second", "third", "fourth" and the like (if any) in the specification and claims of the embodiments of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0086] Furthermore, the terms "comprise", "comprising", "include", "including", and "has", "having", and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, product, or device that comprises a list of steps or units not only comprises those steps or units but can include other steps or units not expressly listed or inherent to such process, method, product, or device.

[0087] The term "a plurality" or "a plurality of" means two or more. The term "and / or" includes any and all combinations of one or more of the associated listed items. The term "or" is used in the inclusive sense (and not the exclusive sense) so that when used, for example, in a list of two or more items, the term "or" means "one, some, or all" of the associated listed items.

[0088] It can be understood that various numbers involved in the embodiments of the present application are only distinguished for convenience of description, and do not limit the scope of the embodiments of the present application.

[0089] It can be understood that the size of the serial numbers of the above processes in the embodiments of the present application does not mean the order of execution, and the execution order of the processes should be determined according to their functions and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

Claims

1. A DF-type locomotive diesel rocker box cover removal tool (100) for removing a cover of a rocker box, the cover being provided with a hand wheel (200), the hand wheel (200) having a removal portion (230), characterized in that, The disassembling tool (100) comprises: a first joint (110) connected with a disassembling part (230) of the hand wheel (200); a second joint (120) for connecting with an operating tool; a reinforcing connecting part (130), the first joint (110) and the second joint (120) respectively protrude from two end faces of the reinforcing connecting part (130) along a first direction (X), the reinforcing connecting part (130) has a avoiding space (130a), a side wall of the reinforcing connecting part (130) is provided with a first lateral opening (130b) communicating with the avoiding space (130a), the first lateral opening (130b) is provided with a guide structure to guide at least part of the hand wheel (200) into the avoiding space (130a).

2. The DF-type locomotive diesel rocker box cover removal tool (100) of claim 1, wherein, The first joint (110) is provided with a first interface (111) and a second lateral opening (112) in communication, when the guide structure guides at least part of the hand wheel (200) into the avoiding space (130a), the disassembling part (230) can enter the first interface (111) through the second lateral opening (112).

3. The DF-type locomotive diesel rocker box cover removal tool (100) of claim 2, wherein, The reinforcing connecting part (130) is provided with a first wall body (131) connected with the first joint (110), the guide structure includes a guide slide (130c), the first lateral opening (130b) penetrates part of the first wall body (131) along a second direction (Y) to form the guide slide (130c) on the first wall body (131).

4. The DF-type locomotive diesel rocker box cover removal tool (100) of claim 3, wherein, The opening end of the guide slide (130c) is provided with opposite first inclined surface (1311) and second inclined surface (1312).

5. The DF-type locomotive diesel rocker box cover removal tool (100) according to any one of claims 1 to 4, characterized in that, The reinforcing connecting part (130) is a column, the first joint (110) is located on the central axis of the reinforcing connecting part (130), and the second joint (120) is located on the central axis of the reinforcing connecting part (130).

6. The DF-type locomotive diesel rocker box cover removal tool (100) of claim 2, wherein, The shape of the first interface (111) matches at least part of the shape of the disassembling part (230), so that the disassembling part (230) is limited by the inner wall of the first interface (111).

7. The DF-type locomotive diesel rocker box cover removal tool (100) of claim 3, wherein, The reinforcing connecting part (130) is provided with a second wall body (132) connected with the second joint (120), along the first direction (X), the thickness of the first wall body (131) is greater than or equal to the thickness of the second wall body (132).

8. The DF-type locomotive diesel rocker box cover removal tool (100) of claim 3, wherein, The second joint (120) is provided with a second interface (121) for connecting with the operating tool, the second interface (121) penetrates the first wall body (131) along the first direction (X).

9. The DF-type locomotive diesel rocker box cover removal tool (100) of claim 6, wherein, The outer wall of at least one of the first joint (110), the second joint (120) and the reinforcing connecting part (130) is provided with a convex structure.

10. The DF-type locomotive diesel rocker box cover removal tool (100) of claim 7, wherein, The reinforcing connecting part (130) further comprises a third wall body (133) connecting the first wall body (131) and the second wall body (132), and the wall thickness of the third wall body (133) is at least 4 mm.

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