Disassembling tool and disassembling system

Abstract

The application relates to a dismounting tool and a dismounting system. The tool comprises a supporting mechanism and a hooking mechanism. The supporting mechanism comprises a supporting seat and a supporting piece movably connected to the supporting seat. The supporting piece has a primary position and multiple final positions arranged in sequence along a first direction and can be switched between the primary position and any final position. The hooking mechanism comprises a mounting piece and multiple clamping assemblies rotatably connected to the mounting piece. The mounting piece penetrates and connects the mounting piece along the first direction. All the clamping assemblies are arranged in a circumferential direction of the mounting piece and connected to the supporting seat. The clamping assemblies have a retracted position and multiple abutting positions arranged in sequence along a second direction. The abutting positions and the final positions are correspondingly arranged. The clamping assemblies can be switched between the retracted position and any abutting position under the driving of the supporting piece. The application adjusts the size of the dismounting tool in the second direction by arranging multiple abutting positions, so that the dismounting tool can adapt to the dismounting requirements of different inner diameter cylinder sleeves, and the versatility of the dismounting tool is improved.

Description

Technical Field

[0001] This application relates to the technical field of engine testing, and in particular to a disassembly fixture and disassembly / reassembly system. Background Technology

[0002] Engine bench testing is a method of testing that simulates the operating conditions of a car engine while the vehicle is in motion. During bench testing, the engine can be subjected to different operating conditions, and its performance can be evaluated by detecting various indicators under these different conditions.

[0003] A cylinder liner is a cylindrical part that is placed in the cylinder bore of the engine block and is pressed and fixed by the cylinder head. The piston reciprocates within its inner bore, and it is cooled by cooling water. During engine bench testing and development, whether for performance, emissions, or durability testing, it is necessary to frequently disassemble and reassemble the engine cylinder liner to check the cylinder's working condition and record the test progress.

[0004] In related technologies, when disassembling and assembling engine cylinder liners, it is necessary to remove engine components such as cylinder heads and camshafts. Due to the different engine sizes, it is necessary to frequently change disassembly tools with different sized pallets, resulting in low versatility. Summary of the Invention

[0005] Therefore, it is necessary to provide a disassembly fixture and disassembly system to address the problem of low versatility of disassembly tools in related technologies.

[0006] Firstly, this application provides a disassembly fixture, employing the following technical solution:

[0007] A disassembly tooling is provided for removing a cylinder liner from a cylinder block, the cylinder liner being connected to the cylinder block along a first direction. The disassembly tooling includes a support mechanism and a hooking mechanism. The support mechanism includes a support base and a support member movably connected to the support base. The support member has an initial position and a plurality of final positions arranged sequentially at intervals along the first direction, and is switchable between the initial position and any of the final positions. The hooking mechanism includes a mounting member and a plurality of snap-fit ​​components rotatably connected to the mounting member. The support member passes through and connects to the mounting member along the first direction. All of the snap-fit ​​components are arranged at intervals along the circumference of the mounting member and connected to the support base. The snap-fit ​​assembly has a series of convergence positions and multiple abutment positions arranged at intervals along a second direction. All abutment positions correspond one-to-one with all end positions. The second direction is perpendicular to the first direction. The snap-fit ​​assembly can switch between the convergence position and any of the abutment positions under the action of the support member. When the support member is in the initial position, the snap-fit ​​assembly is in the convergence position and spaced apart from the inner wall of the cylinder liner. When the support member is in any of the end positions, the snap-fit ​​assembly is in the corresponding abutment position and abuts against the inner wall of the cylinder liner and snaps into the end of the cylinder liner in the first direction.

[0008] In one embodiment, the support includes a support portion and a plurality of guide portions connected to the support portion on the side facing the support member. All of the guide portions extend along the first direction and are arranged at intervals along the circumference of the support member, and together abut against the periphery of the mounting member. A snap-fit ​​assembly is provided between any two adjacent guide portions.

[0009] In one embodiment, the support mechanism further includes a lifting adjustment assembly, and the support member is movably connected to the support seat by means of the lifting adjustment assembly; the lifting adjustment assembly includes a lifting member and a plurality of driving members passing through the lifting member along the first direction, the driving members being arranged one-to-one with the guide portion, and one end of the driving member passing through the lifting member along the first direction and then threadedly connected to the guide portion.

[0010] In one embodiment, the snap-fit ​​assembly includes a mounting base, a pusher, a linkage, and a snap-fit ​​member. The mounting base is connected to the guide portion along the second direction. The pusher is slidably connected to the mounting base along the second direction and can switch between the converging position and any of the abutting positions. The linkage is rotatably connected between the pusher and the mounting portion. The snap-fit ​​member is disposed on the side of the pusher facing away from the mounting portion. When the pusher is in any of the abutting positions, the snap-fit ​​member passes through the cylinder liner and snaps into the cylinder liner.

[0011] In one embodiment, the disassembly fixture further includes a pulling mechanism for connecting the support member and the cylinder body. The support member is movably connected to the pulling mechanism along the first direction, and the support mechanism is capable of reciprocating along the first direction under the drive of the pulling mechanism.

[0012] In one embodiment, the pulling mechanism includes a connector, an adjusting member, and a plurality of adapter components. One end of the adapter component is movably connected to the connector along the second direction, and the other end is used to connect to the cylinder. The support member passes through and is movably connected to the connector along the first direction. The adjusting member is threadedly connected to the support member and abuts against the connector to drive the support mechanism to move along the first direction.

[0013] In one embodiment, the adapter assembly includes a first segment, a connecting segment, and a second segment, the connecting segment being movably connected between the first segment and the second segment along the first direction, the first segment being threadedly connected to the connector, and the second segment being detachably connected to the cylinder body.

[0014] In one embodiment, the disassembly fixture further includes a reset member disposed between the support member and the support portion, the reset member being configured to extend and retract along the first direction, the reset member being capable of applying a pushing force against the support member away from the support portion.

[0015] In one embodiment, the disassembly fixture further includes a correction mechanism. In the first direction, the correction mechanism is spaced apart from the hooking mechanism and located on the side of the hooking mechanism facing away from the support portion. The correction mechanism includes an assembly and multiple abutment components. The support member passes through and connects to the assembly in the first direction. All the abutment components are spaced apart circumferentially along the assembly. In the second direction, the abutment components can move synchronously with the snap-fit ​​components under the drive of the support member.

[0016] Secondly, this application provides a disassembly and assembly system, which adopts the following technical solution:

[0017] A disassembly and assembly system includes a cylinder and the disassembly fixture described above, the cylinder including a cylinder body and a cylinder liner detachably mounted in the cylinder body, the disassembly fixture being used to remove the cylinder liner from the cylinder body.

[0018] The support of the aforementioned disassembly fixture can switch between an initial position and an end position along the first direction under the drive of the lifting and adjusting assembly, thereby driving the snap-fit ​​assembly to switch between a retracted position and an abutment position along the second direction, so that the disassembly fixture passes through and snaps onto the end of the cylinder liner.

[0019] Meanwhile, for cylinder liners of different sizes, the support member has multiple end positions arranged sequentially at intervals along the first direction, and the snap-fit ​​assembly has multiple abutment positions arranged sequentially at intervals along the second direction, so that the overall size of the disassembly fixture in the second direction can be adaptively adjusted according to the inner diameter of the cylinder liner to be disassembled, thereby improving the versatility of the disassembly fixture and making it applicable to the disassembly process of cylinder liners with different radial dimensions. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the disassembly fixture in one embodiment of this application.

[0021] Figure 2 This is a schematic diagram of another perspective of the disassembly fixture in one embodiment of this application.

[0022] Figure 3 This is a schematic diagram of the support member, lifting member, mounting member and assembly parts in one embodiment of this application.

[0023] Figure 4 for Figure 2 A cross-sectional view of the disassembly fixture.

[0024] Figure 5 for Figure 4 Enlarged view of section A.

[0025] Figure 6 This is a three-dimensional structural diagram of the support base in one embodiment of this application.

[0026] Figure 7 This is a three-dimensional structural diagram of the adapter component in one embodiment of this application.

[0027] Attached image annotations:

[0028] 1. Support mechanism; 11. Support seat; 111. Supporting part; 112. Guide part; 12. Support component; 13. Lifting and adjusting assembly; 131. Lifting component; 132. Driving component; 2. Hooking mechanism; 21. Mounting component; 22. Snap-fit ​​assembly; 221. Mounting seat; 222. Pushing component; 2221. Pushing part; 2222. Sliding part; 2223. Limiting part; 223. Linking component; 224. Snap-fit ​​component; 3. Correction mechanism; 31. Assembly part; 32. Abutting assembly; 4. Reset component; 5. Pulling mechanism; 51. Connecting component; 52. Adapter assembly; 521. First section; 522. Connecting section; 523. Second section; 5231. Connecting part; 5232. Supporting part; 5233. Mounting part; 53. Adjusting component; F1. First direction; F2. Second direction. Detailed Implementation

[0029] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0030] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0031] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element present. Where applicable, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible embodiments. "First direction" can be the axial direction of the cylinder liner, and "second direction" can be the radial direction of the cylinder liner.

[0035] The following is in conjunction with the appendix Figure 1-7 The embodiments of this application will be described in further detail.

[0036] See Figures 1 to 7 One embodiment of this application provides a disassembly fixture for disassembling the cylinder liner of an engine during an engine bench test. It mainly includes a support mechanism 1 for providing support force and a hooking mechanism 2 for hooking the cylinder liner.

[0037] Specifically, the support mechanism 1 includes a support base 11, a support member 12, and a lifting and adjusting assembly 13 for movably connecting the support member 12 to the support base 11. In this embodiment, the support member 12 is a metal rod extending along a first direction F1, and in the first direction F1, the axis of the support member 12 coincides with the axis of the cylinder liner.

[0038] Furthermore, along the first direction F1, the support member 12 has an initial position and multiple final positions arranged sequentially at intervals. Driven by the lifting and adjusting assembly 13, the support member 12 can switch between the initial position and any of the final positions. During actual disassembly, a suitable final position can be selected based on the actual size of the cylinder liner to be disassembled, to accommodate the disassembly requirements of cylinder liners of different sizes.

[0039] See Figure 1 and Figure 2The support 11 includes a supporting portion 111 and multiple guide portions 112. The guide portions 112 extend along a first direction F1 and are integrally formed on the end face of the supporting portion 111 facing the support member 12. In this embodiment, the supporting portion 111 is a metal plate with a square cross-section, and the axis of the supporting portion 111 in the first direction F1 coincides with the axis of the cylinder liner. Four guide portions 112 are provided, specifically metal pillars with a square cross-section, and the four guide portions 112 are connected one-to-one to the four apex corners of the supporting portion 111. The support 11 with the above structure has a centrally symmetrical structure relative to the axis of the cylinder liner, which can evenly distribute the forces received during disassembly and has strong structural stability.

[0040] See Figure 1 and Figure 3 The lifting adjustment assembly 13 includes a lifting member 131 and multiple driving members 132. All driving members 132 and all guide parts 112 are correspondingly arranged and pass through the lifting member 131 along the first direction F1. In this embodiment, the lifting member 131 is specifically a square metal plate. The support member 12 passes through the center of the lifting member 131 along the first direction F1 and is connected to the lifting member 131. In actual assembly, the support member 12 and the lifting member 131 can be welded or threaded.

[0041] In this embodiment, the driving component 132 consists of a long bolt passing through the lifting component 131 along the first direction F1 and a nut adapted to connect with the long bolt. During actual assembly, one end of the long bolt passes through the lifting component 131 and is threadedly connected to the end of the guide portion 112 away from the support portion 111; the other end is threadedly connected to the nut, which abuts against the end face of the lifting component 131 facing away from the support portion 111. When the position of the support component 12 needs to be adjusted, the nut is turned to drive the lifting component 131 to move, thereby causing the support component 12 to move along the first direction F1 between an initial position and any final position.

[0042] See Figure 1 and Figure 3 The hooking mechanism 2 includes a mounting member 21 and a plurality of snap-fit ​​components 22 rotatably connected to the mounting member 21. In this embodiment, the mounting member 21 is a metal plate with a cross-shaped cross section. The support member 12 passes through the center of the mounting member 21 along the first direction F1 and is connected to the mounting member 21. Similarly, the support member 12 and the mounting member 21 can be connected by welding or threaded connection, so that the mounting member 21 can move synchronously along the first direction F1 under the drive of the support member 12.

[0043] Furthermore, the four guide portions 112 are evenly distributed along the circumference of the mounting member 21 and fit through the notch of the mounting member 21. The snap-fit ​​assembly 22 is rotatably connected to the protruding portion of the mounting member 21. A snap-fit ​​assembly 22 is provided between any two adjacent guide portions 112. All guide portions 112 abut against the periphery of the mounting member 21, providing guidance during the movement of the mounting member 21. This prevents the mounting member 21 from deviating from the first direction F1 during movement, thus improving the stability of the mounting member 21 during movement.

[0044] Specifically, in this embodiment, four snap-fit ​​components 22 are provided. The four snap-fit ​​components 22 are arranged at intervals along the circumference of the mounting member 21 and are fixedly connected to the guide portion 112. Along the second direction F2, the snap-fit ​​components 22 have successively spaced-out convergence positions and multiple abutment positions. The snap-fit ​​components 22 can switch between the convergence position and any abutment position under the drive of the support member 12.

[0045] The snap-fit ​​assembly 22 is positioned at a position corresponding to the initial position of the support member 12, and all abutment positions and all final positions are set in a one-to-one correspondence. That is, when the support member 12 is in the initial position, the snap-fit ​​assembly 22 is in the snap-fit ​​position and spaced from the inner wall of the cylinder liner, so that the disassembly tool can be inserted into the cylinder liner; when the support member 12 is in any final position, the snap-fit ​​assembly 22 reaches the corresponding abutment position under the action of the support member 12. At this time, the snap-fit ​​assembly 22 abuts against the inner wall of the cylinder liner and snaps into the end of the cylinder liner, so that the cylinder liner can be removed.

[0046] In addition, by setting multiple one-to-one corresponding end positions and contact positions, the operator can select the appropriate end position and contact position according to the actual inner diameter of the cylinder liner to be disassembled during the test. This allows the disassembly tool to be adapted to the disassembly needs of cylinder liners with more different inner diameters, effectively improving the versatility of the disassembly tool, reducing the time wasted by frequently changing disassembly tools, and improving test efficiency.

[0047] See Figures 1 to 5 Specifically, the snap-fit ​​assembly 22 includes a mounting base 221, a pusher 222, a linkage 223, and a snap-fit ​​member 224. The mounting base 221 is fixed to the guide portion 112 along the second direction F2, and the connection between the mounting base 221 and the guide portion 112 can be achieved by bolt connection. The mounting base 221 has a sliding groove extending along the second direction F2, which passes through the mounting base 221 along the first direction F1. The pusher 222 is slidably installed in the sliding groove along the second direction F2.

[0048] See Figure 6In some embodiments, to reduce the likelihood of the pusher 222 sliding out of the sliding groove, the pusher 222 includes a pusher portion 2221, a sliding portion 2222, and a limiting portion 2223. The sliding portion 2222 is connected between the pusher portion 2221 and the limiting portion 2223 and is slidably disposed in the sliding groove. The pusher portion 2221 is used to abut against the inner wall of the cylinder liner. The dimensions of both the pusher portion 2221 and the limiting portion 2223 in the width direction of the mounting base 221 are larger than the width of the sliding groove, thus confining the sliding portion 2222 within the sliding groove and preventing it from slipping out.

[0049] For ease of assembly, the sliding part 2222 and the pushing part 2221 are integrally formed. In this embodiment, the limiting part 2223 is constructed into a T-shaped structure and can be connected to the sliding part 2222 by welding or bolting to improve the stability of the pushing part 222 during the sliding process.

[0050] See Figures 1 to 5 In this embodiment, the linkage 223 is specifically a connecting rod made of metal material. The linkage 223 is hinged between the pushing member 222 and the protruding part of the mounting member 21. During the movement of the support member 12, it can drive the mounting member 21 to move synchronously, so that the linkage 223 rotates around the connection position with the mounting member 21, thereby driving the pushing member 222 to switch between the retracted position and any abutting position, so as to achieve abutment with the inner wall of the cylinder liner.

[0051] See Figure 1 and Figure 4 In some embodiments, the end face of the pusher 222 facing away from the support 12 is set as an arc-shaped surface. The arc-shaped surface of the pusher 222 is consistent with the arc of the inner wall of the cylinder liner, so that the arc of the contact surface between the pusher 222 and the cylinder liner is matched, thereby reducing the possibility of damage to the cylinder liner by the disassembly tooling during disassembly.

[0052] Furthermore, in some embodiments, a protective layer (not shown) is connected to the end face of the pusher 222 facing away from the support 12. The protective layer in this embodiment can be made of copper or hard resin material. The protective layer is pressed against the inner wall of the cylinder liner by the pusher 222, which protects the inner wall of the cylinder liner and can effectively reduce the possibility of the disassembly tool scratching the inner wall of the cylinder liner during the disassembly process.

[0053] In addition, the snap-fit ​​member 224 in this embodiment is specifically a protrusion. The snap-fit ​​member 224 is integrally formed on the end face of the linkage member 223 on the side opposite to the support member 12. When the push member 222 is in any abutment position, the protrusion can snap with the end of the cylinder liner so as to remove the cylinder liner.

[0054] See Figure 1 and Figure 2In some embodiments, the disassembly fixture further includes a reset member 4 installed between the support member 12 and the support portion 111. In this embodiment, the reset member 4 is specifically a spring. An installation space is formed between the four guide portions 112. The reset member 4 is installed in the installation space and configured to extend and retract along a first direction F1, always applying a force to the support member 12 away from the support portion 111. After removing the cylinder liner, the operator loosens the nut on the drive member 132. The support member 12 returns to its initial position under the elastic force of the reset member 4, and the cylinder liner can be quickly removed by releasing it.

[0055] See Figure 1 , Figure 5 and Figure 7 In some embodiments, the disassembly fixture further includes a pulling mechanism 5, which includes a connector 51, an adjusting member 53, and multiple adapter components 52. In this embodiment, the adapter components 52 are set to two and are symmetrically distributed with the cylinder liner axis as the axis.

[0056] In this embodiment, the connecting member 51 extends along the second direction F2. Specifically, the connecting member 51 is a bidirectional screw, with opposite thread directions at its two ends along the second direction F2. One end of the adapter assembly 52 is threaded to the connecting member 51 along the second direction F2, and the other end is connected to the cylinder block. The support member 12 passes through and is movably connected to the connecting member 51 along the first direction F1. The adjusting member 53 is threaded to the support member 12 and abuts against the connecting member 51 to drive the support mechanism 1 to move along the first direction F1, thereby completing the process of inserting and removing the disassembly tooling from the cylinder liner. In this embodiment, the adjusting member 53 is specifically a nut that can be threaded to the support member 12. To save effort, the adjusting member 53 can be replaced by a hydraulic system.

[0057] Specifically, the adapter assembly 52 includes a first section 521 threadedly connected to the connector 51 along the second direction F2, a second section 523 for detachably connecting to the cylinder body, and a connecting section 522 threadedly connected between the first section 521 and the second section 523. In this embodiment, the connecting section 522 is specifically a bidirectional screw, extending along the first direction F1 with opposite thread directions at both ends. The first section 521 has an L-shaped structure and is used to connect the connecting section 522 along the first direction F1 and the connector 51 along the second direction F2.

[0058] During the actual disassembly process, since the connecting section 522 is movably connected between the first section 521 and the second section 523, the overall size of the adapter component 52 in the first direction F1 is adjustable. It can be adjusted according to the actual length of the cylinder liner to be removed, so that the disassembly tool can be used to disassemble cylinder liners of different lengths, further improving the versatility of the disassembly tool.

[0059] See Figure 1 and Figure 7 In some embodiments, the second segment 523 includes a connecting portion 5231 for connecting the connecting segment 522 and a support portion 5232 perpendicular to the connecting portion 5231. The support portion 5232 is integrally formed on the end of the connecting portion 5231 away from the connecting segment 522, and the connecting portion 5231 and the support portion 5232 are configured into a T-shaped structure. Furthermore, the second segment 523 also includes a mounting portion 5233 for bolt connection. The support portion 5232 has a sliding groove along its extending direction for sliding connection of the mounting portion 5233, and the groove passes through the mounting portion 5233 along a first direction F1. During actual installation, the operator adjusts the position of the mounting portion 5233 according to the actual position of the mounting hole on the cylinder body, and then uses bolts to sequentially pass through the mounting portion 5233 and the support portion 5232 to complete the fixation between the pulling mechanism 5 and the cylinder body.

[0060] Combination Figure 1 and Figure 5 As shown, in some embodiments, the disassembly fixture also includes a correction mechanism 3. In the first direction F1, the correction mechanism 3 and the hooking mechanism 2 are arranged at intervals. The correction mechanism 3 is located on the side of the hooking mechanism 2 facing away from the support part 111, and is used to abut against the inner wall of the cylinder liner during the cylinder liner disassembly process, thereby reducing the deviation of the support part 12 from the first direction F1 when the cylinder liner is pulled out, so as to prevent jamming between the disassembly fixture and the cylinder liner, or even damage to the cylinder liner.

[0061] Specifically, the correction mechanism 3 includes a fitting 31 and multiple abutment components 32 rotatably connected to the fitting 31. A support member 12 passes through and connects to the fitting 31 along the first direction F1. The support member 12 and the fitting 31 can also be connected by welding or threading. All the abutment components 32 are arranged at intervals along the circumference of the fitting 31. Along the second direction F2, the abutment components 32 can move synchronously with the aforementioned snap-fit ​​components 22 under the drive of the support member 12, abutting against the inner wall of the cylinder liner, thus making it less likely for the disassembly tool to deviate from the first direction F1 during the removal process.

[0062] The assembly 31 in this embodiment has the same structure as the mounting component 21 described above, and the abutting component 32 has a similar structure to the snap-fit ​​component 22 described above. The only difference is that the outer edge of the abutting component 32 is fully adapted to fit the curvature of the inner wall of the cylinder liner, while the snap-fit ​​component 22 has a snap-fit ​​component 224 for snapping with the cylinder liner.

[0063] See Figures 1 to 7An embodiment of this application also provides a disassembly and assembly system for use in engine bench testing. The disassembly and assembly system includes a cylinder (not shown) and the disassembly fixture described above. The cylinder includes a cylinder body and a cylinder liner detachably mounted in the cylinder body. The disassembly fixture can adapt and adjust the hook mechanism 2 and the adapter assembly 52 according to the actual inner diameter and length of the cylinder liner, so that the overall dimensions of the disassembly fixture in the first direction F1 and the second direction F2 are adapted to the length and inner diameter of the cylinder body, respectively. This avoids the trouble of constantly changing disassembly tools during frequent cylinder body disassembly and assembly, shortens the test time, and improves the test efficiency.

[0064] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A disassembly tool for removing a cylinder liner from a cylinder block, the cylinder liner being connected to the cylinder block along a first direction, characterized in that, The disassembly fixture includes: A support mechanism includes a support base and a support member movably connected to the support base. The support member has an initial position and a plurality of final positions arranged sequentially at intervals along a first direction, and is capable of switching between the initial position and any of the final positions. The hooking mechanism includes a mounting member and a plurality of snap-fit ​​components rotatably connected to the mounting member. The support member passes through and connects to the mounting member along a first direction. All the snap-fit ​​components are arranged at intervals along the circumference of the mounting member and connected to the support base. Each snap-fit ​​component has a convergence position and a plurality of abutment positions arranged at intervals along a second direction. All the abutment positions correspond one-to-one with all the end positions. The second direction is perpendicular to the first direction. The snap-fit ​​components can switch between the convergence position and any of the abutment positions under the drive of the support member. The support includes a support portion and a plurality of guide portions connected to the support portion on the side facing the support member. All the guide portions extend along the first direction and are arranged at intervals along the circumference of the support member, and abut against the periphery of the mounting member. A snap-fit ​​assembly is provided between any two adjacent guide portions. The mounting component is constructed with a cross-shaped cross section, and all the guide portions are evenly distributed along the circumference of the mounting component and are adapted to pass through the notch positions on the mounting component; The support mechanism further includes a lifting adjustment assembly, and the support member is movably connected to the support seat by means of the lifting adjustment assembly; the lifting adjustment assembly includes a lifting member and a plurality of driving members passing through the lifting member along the first direction, the driving members are arranged one-to-one with the guide portion, and one end of the driving member passes through the lifting member along the first direction and is threadedly connected to the guide portion. When the support member is in the initial position, the snap-fit ​​assembly is in the retracted position and is spaced apart from the inner wall of the cylinder liner. When the support member is in any of the said end positions, the snap-fit ​​assembly is in the corresponding abutment position and abuts against the inner wall of the cylinder liner and snaps against the end of the cylinder liner in the first direction.

2. The disassembly fixture according to claim 1, characterized in that, The snap-fit ​​assembly includes a mounting base, a pusher, a linkage, and a snap-fit ​​component. The mounting base is connected to the guide portion along the second direction. The pusher is slidably connected to the mounting base along the second direction and can switch between the converging position and any of the abutting positions. The linkage is rotatably connected between the pusher and the mounting portion. The snap-fit ​​component is located on the side of the pusher facing away from the mounting portion. When the pusher is in any of the abutting positions, the snap-fit ​​component passes through the cylinder liner and snaps into the cylinder liner.

3. The disassembly fixture according to claim 1, characterized in that, The disassembly fixture also includes a pulling mechanism, which is used to connect the support member and the cylinder body. The support member is movably connected to the pulling mechanism along the first direction, and the support mechanism can reciprocate along the first direction under the drive of the pulling mechanism.

4. The disassembly fixture according to claim 3, characterized in that, The pulling mechanism includes a connector, an adjusting member, and multiple adapter components. One end of the adapter component is movably connected to the connector along the second direction, and the other end is used to connect to the cylinder. The support member passes through and is movably connected to the connector along the first direction. The adjusting member is threadedly connected to the support member and abuts against the connector to drive the support mechanism to move along the first direction.

5. The disassembly fixture according to claim 4, characterized in that, The adapter assembly includes a first section, a connecting section, and a second section. The connecting section is movably connected between the first section and the second section along the first direction. The first section is threadedly connected to the connector, and the second section is detachably connected to the cylinder body.

6. The disassembly fixture according to claim 1, characterized in that, The disassembly fixture further includes a reset member disposed between the support member and the support portion. The reset member is configured to extend and retract along the first direction and is capable of applying a pushing force to the support member away from the support portion.

7. The disassembly fixture according to claim 1, characterized in that, The disassembly fixture also includes a correction mechanism. In the first direction, the correction mechanism is arranged at intervals with the hooking mechanism and is located on the side of the hooking mechanism that is away from the support portion. The correction mechanism includes an assembly and multiple abutment components. The support member passes through and connects to the assembly along the first direction. All the abutment components are arranged at intervals along the circumference of the assembly. Along the second direction, the abutment components can move synchronously with the locking components under the drive of the support member.

8. A disassembly and assembly system, characterized in that, include: A cylinder, including a cylinder body and a cylinder liner detachably mounted in the cylinder body; and The disassembly fixture as described in any one of claims 1-7 is used to remove the cylinder liner from the cylinder block.

Images