Cylinder liner press fitting apparatus for diesel engine cylinder block and processing method thereof

Abstract

The present application belongs to the technical field of press fitting, and particularly relates to a device for cylinder liner conveying and press fitting, and more particularly to a cylinder liner press fitting device for a diesel engine cylinder body and a processing method thereof. The cylinder liner press fitting device for the diesel engine cylinder body comprises a feeding mechanism, a transfer mechanism and a press fitting mechanism. The feeding mechanism is provided with a plurality of conveying plates for conveying the cylinder liner. The conveying plates are provided with supporting protrusions. The supporting protrusions with cold air blowing function are arranged on the conveying plates. In the feeding and conveying process, the cylinder liner is blown by cold air to reduce the abrasion of the cylinder liner during feeding. In the transfer process, the cylinder liner is centered by cold air, so that the cylinder liner is coaxial with the supporting protrusions and the clamping part of the transfer mechanism. Before assembly, the cylinder liner is cold shrunk by cold air to reduce the interference between the cylinder liner and the cylinder body, so that the press fitting process is more stable, and the surface scratch of the cylinder liner is further reduced.

Description

Technical Field

[0001] This invention belongs to the field of press-fitting technology, specifically relating to equipment for cylinder liner conveying and pressing, and more particularly to a cylinder liner press-fitting equipment and processing method for diesel engine cylinder blocks. Background Technology

[0002] During diesel engine assembly, the precise fit between the cylinder liner and the cylinder block directly affects the engine's sealing performance, heat dissipation efficiency, and overall operating stability.

[0003] In related technologies, cylinder liners are prone to wear during assembly, mainly occurring in the following three stages: First, during the loading and conveying process, ordinary flat plates or simple pallets are often used to support the cylinder liners. During transport, the cylinder liners are prone to shifting and shaking, rubbing and colliding with the conveyor plate, leaving scratches on the outer circumference or end face of the cylinder liner. Second, during the transfer process, rigid grippers are often used to directly clamp the cylinder liner. If the cylinder liner is not accurately positioned during gripping, it will further deepen the wear. Third, during assembly, because the cylinder liner and cylinder block have an interference fit, the static friction at the contact surface is relatively large. Forced pressing can easily cause localized stress concentration, leading not only to scratches on the cylinder liner surface but also deformation or even cracking. If scratches are not detected in time, they will damage the protective coating on the cylinder liner surface, accelerating wear or corrosion between the cylinder liner and cylinder block, ultimately causing engine oil leaks, power reduction, and other malfunctions, significantly increasing maintenance costs and production downtime.

[0004] Therefore, how to reduce wear during the assembly process of cylinder liners and cylinder blocks is a technical problem that urgently needs to be solved.

[0005] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore, the above description is not considered to constitute prior art information. Summary of the Invention

[0006] This disclosure provides at least one cylinder liner press-fitting device and its processing method for a diesel engine cylinder block.

[0007] In a first aspect, embodiments of this disclosure provide a cylinder liner press-fitting device for a diesel engine cylinder block, comprising: The feeding mechanism is used to feed the cylinder liner; A transfer mechanism is disposed above the feeding mechanism and is used to transfer the cylinder liner; A pressing mechanism is provided at the unloading end of the feeding mechanism and is used to transport the cylinder body and press the cylinder liner transferred by the transfer mechanism into the cylinder body. The feeding mechanism is equipped with multiple conveying plates for conveying cylinder liners; The conveyor plate is provided with a supporting protrusion, and the supporting protrusion is used to engage the cylinder liner; The sidewall of the supporting protrusion is provided with multiple air holes at intervals; A vortex tube is provided at the bottom of the supporting protrusion; The cold air outlet of the vortex tube is connected to the air blowing hole; When the feeding mechanism conveys the cylinder liner, the position of the cylinder liner is adjusted by the supporting protrusion so that the cylinder liner is coaxial with the clamping part of the transfer mechanism. At the same time, the cylinder liner is cooled and contracted by the cold air blown out from the air blowing hole so that the cylinder liner can be inserted into the cylinder body.

[0008] In one alternative embodiment, the supporting protrusion includes: The first and second truncated cones; The first frustum is positioned above the second frustum; A flow divider cavity is provided inside the first truncated cone; An air intake chamber is provided inside the second truncated cone; The vortex tube is disposed through the air intake cavity, and the cold air outlet of the vortex tube is connected to the flow divider cavity.

[0009] In an optional embodiment, the air inlet is disposed on the side wall of the first frustum; Furthermore, the blowing direction of the air hole is set along the tangent of the first frustum.

[0010] In one optional embodiment, the air inlet of the vortex tube is connected to the air inlet chamber; Furthermore, the air inlet of the vortex tube is opened along the tangential direction of the vortex tube; After the gas enters the vortex tube from the inlet, the cold air enters the splitting chamber from the cold air outlet, and the hot air flows out from the hot air outlet.

[0011] In one optional embodiment, the side wall of the second frustum has a notch that communicates with the air intake chamber; The notch communicates with the inner cavity of the conveyor plate; The inner cavity of the conveyor plate is connected to an external air supply device.

[0012] In one optional embodiment, air supply connectors are also provided on both sides of the feeding mechanism; The gas supply connector is connected to an external gas supply device; Furthermore, the air supply connector is held against the side wall of the conveying plate by a return spring; An air inlet is provided at the mating point between the side wall of the conveying plate and the air supply connector. When the conveyor plate is conveyed by the feeding mechanism to the air supply connector inserted into the air inlet, the external air supply device supplies air to the inner cavity of the conveyor plate.

[0013] In one optional embodiment, the number of air supply connectors on each side of the feeding mechanism is multiple; Furthermore, multiple air supply connectors are arranged along the feeding direction of the feeding mechanism to pre-cool and shrink the cylinder liner.

[0014] In one alternative embodiment, the number of supporting protrusions on the conveyor plate is multiple; Multiple supporting protrusions are arranged side by side on the conveyor plate.

[0015] Secondly, this disclosure also provides a processing method using the cylinder liner press-fitting equipment for diesel engine cylinder blocks as described above, the processing method comprising: The cylinder liner is fitted onto the supporting protrusion on the conveyor plate; The cylinder liner is conveyed by the feeding mechanism; Cold air is blown from the cold air outlet to the air blowing hole through the vortex tube to adjust the position of the cylinder liner and at the same time, to cool and shrink the cylinder liner. After the transfer mechanism picks up the cylinder liner, it is placed on the cylinder body of the pressing mechanism and pressed together by the pressing mechanism.

[0016] In one alternative embodiment, the supporting protrusion includes: The first and second truncated cones; The first frustum is positioned above the second frustum; A flow divider cavity is provided inside the first truncated cone; An air intake chamber is provided inside the second truncated cone; The vortex tube is disposed through the air intake cavity, and the cold air outlet of the vortex tube is connected to the flow divider cavity.

[0017] The beneficial effects of this invention are as follows: the cylinder liner press-fitting equipment and processing method for diesel engine cylinder blocks are provided with a supporting protrusion with a cold air blowing function on the conveyor plate. During the feeding and conveying process, the cylinder liner is blown by cold air, which reduces the friction between the cylinder liner and the conveyor plate and reduces the wear of the cylinder liner during feeding. During the transfer process, the cylinder liner is centered by cold air, making the cylinder liner coaxial with the supporting protrusion, thereby making the cylinder liner coaxial with the clamping part of the transfer mechanism and reducing wear during transfer. Before assembly, the cylinder liner is cooled and contracted by cold air, which reduces the interference between the cylinder liner and the cylinder block, making the press-fitting process more stable and further reducing scratches on the cylinder liner surface.

[0018] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention are realized and obtained through the structures particularly pointed out in the description and the drawings.

[0019] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a cylinder liner press-fitting device for a diesel engine cylinder block provided in an embodiment of this disclosure; Figure 2 A cross-sectional view of the feeding mechanism provided in an embodiment of this disclosure; Figure 3 This is a schematic diagram of the feeding mechanism provided in an embodiment of the present disclosure; Figure 4 A cross-sectional view of the supporting protrusion provided in an embodiment of this disclosure; Figure 5 This is a schematic diagram of the structure of the supporting protrusion provided in an embodiment of the present disclosure; Figure 6 A flowchart illustrating a processing method for a cylinder liner press-fitting device for a diesel engine cylinder block, provided in an embodiment of this disclosure.

[0022] In the diagram: 100, feeding mechanism; 110, conveying plate; 120, supporting protrusion; 121, air blowing hole; 122, vortex tube; 1221, cold air outlet; 1222, air inlet; 123, first truncated cone; 1231, flow divider; 124, second truncated cone; 1241, air inlet; 1242, notch; 130, air supply connector; 200, transfer mechanism; 300, pressing mechanism; 400, cylinder liner; 500, cylinder body. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0025] In this document, when an element or layer is referred to as “located,” “joined to,” “connected to,” “attached to,” or “coupled to” another element or layer, it may be directly located, joined, connected, attached to, or coupled to the other element or layer, or there may be intermediate elements or layers present. Conversely, when an element is referred to as “directly on another element or layer,” “directly joined to,” “directly connected to,” “directly attached to,” or “directly coupled to” another element or layer, there may be no intermediate elements or layers present. Other terms used to describe relationships between elements should be interpreted in a similar manner (e.g., “between” versus “directly between,” “adjacent” versus “directly adjacent,” etc.). As used herein, the term “and / or” includes any and all combinations of one or more of the related listed items.

[0026] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0027] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise expressly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0028] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0029] Research has revealed that cylinder liners are prone to wear during assembly, primarily occurring in the following three stages: First, during the loading and conveying process, ordinary flat plates or simple pallets are often used to support the cylinder liners. During transport, the cylinder liners are prone to shifting and shaking, rubbing and colliding with the conveyor plate, leaving scratches on the outer circumference or end face of the cylinder liner. Second, during the transfer process, rigid grippers are often used to directly clamp the cylinder liners. If the cylinder liner is not accurately positioned during gripping, it will further exacerbate wear. Third, during assembly, because the cylinder liner and cylinder block have an interference fit, the static friction at the contact surface is relatively high. Forced pressing can easily cause localized stress concentration, potentially leading not only to scratches on the cylinder liner surface but also deformation or even cracking. If scratches are not detected in time, they will damage the protective coating on the cylinder liner surface, accelerating wear or corrosion between the cylinder liner and cylinder block, ultimately causing engine oil leaks, power loss, and other malfunctions, significantly increasing maintenance costs and production downtime.

[0030] Based on the above research, this disclosure provides a cylinder liner press-fitting device and processing method for a diesel engine cylinder block. By setting a supporting protrusion 120 with a cold air blowing function on the conveyor plate 110, the cylinder liner 400 is blown by cold air during the feeding and conveying process, reducing the friction between the cylinder liner 400 and the conveyor plate 110 and reducing the wear of the cylinder liner 400 during feeding. During the transfer process, the cylinder liner 400 is centered by cold air, making the cylinder liner 400 and the supporting protrusion 120 coaxial, thereby making the cylinder liner 400 and the clamping part of the transfer mechanism 200 coaxial, reducing the wear during transfer. Before assembly, the cylinder liner 400 is cooled and contracted by cold air, reducing the interference between the cylinder liner 400 and the cylinder block 500, making the press-fitting process more stable and further reducing scratches on the surface of the cylinder liner 400.

[0031] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventor's contribution to this disclosure.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0034] Please see Figure 1 and Figure 2 At least one embodiment provides a cylinder liner press-fitting device for a diesel engine cylinder block, comprising: a feeding mechanism 100 for feeding cylinder liners 400; a transfer mechanism 200 disposed above the feeding mechanism 100 and for transferring the cylinder liners 400; and a press-fitting mechanism 300 disposed at the unloading end of the feeding mechanism 100 and for conveying the cylinder block 500 and pressing the cylinder liners 400 transferred by the transfer mechanism 200 into the cylinder block 500; wherein the feeding mechanism 100 is provided with a plurality of conveying plates 110 for conveying the cylinder liners 400; and the conveying plates 110 are provided with supporting protrusions 1 20, and the supporting protrusion 120 is used to engage the cylinder liner 400; the side wall of the supporting protrusion 120 is provided with a plurality of air blowing holes 121 at intervals; the bottom of the supporting protrusion 120 is provided with a vortex tube 122; the cold air outlet 1221 of the vortex tube 122 is connected to the air blowing holes 121; when the feeding mechanism 100 conveys the cylinder liner 400, the position of the cylinder liner 400 is adjusted by the supporting protrusion 120 so that the cylinder liner 400 is coaxial with the clamping part of the transfer mechanism 200. At the same time, the cylinder liner 400 is cooled and contracted by the cold air blown out from the air blowing holes 121 so that the cylinder liner 400 can be inserted into the cylinder body 500.

[0035] By providing a support protrusion 120 with a cold air blowing function on the conveyor plate 110, the cylinder liner 400 is blown by cold air during the feeding and conveying process, reducing the friction between the cylinder liner 400 and the conveyor plate 110 and reducing the wear of the cylinder liner 400 during feeding. During the transfer process, the cylinder liner 400 is centered by cold air, making the cylinder liner 400 and the support protrusion 120 coaxial, thereby making the cylinder liner 400 and the clamping part of the transfer mechanism 200 coaxial, reducing the wear during transfer. Before assembly, the cylinder liner 400 is cooled and contracted by cold air, reducing the interference between the cylinder liner 400 and the cylinder body 500, making the pressing process more stable, and further reducing scratches on the surface of the cylinder liner 400.

[0036] Please see Figure 3 and Figure 4The supporting protrusion 120 includes: a first frustum 123 and a second frustum 124; the first frustum 123 is disposed above the second frustum 124; a flow divider 1231 is disposed in the first frustum 123; an air intake chamber 1241 is disposed in the second frustum 124; the vortex tube 122 is disposed through the air intake chamber 1241, and the cold air outlet 1221 of the vortex tube 122 is connected to the flow divider 1231.

[0037] The cold air from the vortex tube 122 is orderly introduced into the first truncated cone 123 of the supporting protrusion 120. The cold air is evenly distributed through the distribution cavity 1231, so that the cold air flows out evenly from the side wall of the truncated cone, which helps to center the cylinder liner 400 and realize that the cylinder liner 400 is coaxial with the truncated cone. At the same time, the cold air is evenly blown to the lower end of the cylinder liner 400, so that the cylinder liner 400 is evenly cooled and contracted.

[0038] Please continue reading. Figure 4 and Figure 5 The air blowing hole 121 is disposed on the side wall of the first frustum 123; and the air blowing direction of the air blowing hole 121 is arranged along the tangent of the first frustum 123.

[0039] The air blowing hole 121 blows air tangentially, and the resulting circumferential airflow will generate a uniform radial force on the cylinder liner 400, pushing the cylinder liner 400 to automatically align with the supporting protrusion 120. At the same time, the circulating airflow forms an air film between the cylinder liner 400 and the supporting protrusion 120, reducing friction and collision during material feeding and avoiding scratches.

[0040] Please see Figure 4 and Figure 5 The air inlet 1222 of the vortex tube 122 is connected to the air inlet chamber 1241; and the air inlet 1222 of the vortex tube 122 is opened along the tangential direction of the vortex tube 122; after the gas enters the vortex tube 122 from the air inlet 1222, the cold air enters the flow distribution chamber 1231 from the cold air outlet 1221, and the hot air flows out from the hot air outlet.

[0041] The tangentially oriented air intake 1222 enhances the air vortex effect within the vortex tube 122, more efficiently separating cold and hot air, ensuring that the cold air outlet 1221 outputs low-temperature, stable cold air, and enhancing the cooling and contraction effect on the cylinder liner 400. Please see Figure 2 and Figure 4 The second truncated cone 124 has a notch 1242 on its side wall that communicates with the air inlet chamber 1241; the notch 1242 communicates with the inner cavity of the conveying plate 110; and the inner cavity of the conveying plate 110 communicates with an external air supply device.

[0042] Specifically, the feeding mechanism 100 is provided with air supply connectors 130 on both sides; the air supply connectors 130 are connected to an external air supply device; and the air supply connectors 130 are held against the side wall of the conveying plate 110 by a return spring; an air inlet is provided at the fitting point between the side wall of the conveying plate 110 and the air supply connector 130; when the conveying plate 110 is conveyed by the feeding mechanism 100 to the point where the air supply connector 130 is inserted into the air inlet, the external air supply device supplies air to the inner cavity of the conveying plate 110.

[0043] The automatic air supply connection is achieved when the conveyor plate 110 is in position by means of a return spring and a matching air inlet design, without the need for additional drive components.

[0044] In a preferred embodiment, each side of the feeding mechanism 100 has a plurality of air supply connectors 130; and the plurality of air supply connectors 130 are arranged along the feeding direction of the feeding mechanism 100 to pre-cool and shrink the cylinder liner 400.

[0045] Multiple air supply connectors 130 are arranged along the feeding direction, allowing the cylinder liner 400 to gradually pre-cool and shrink during the conveying process. Compared to single-stage cooling and shrinkage, this method reduces the risk of stress concentration while maintaining the continuity of the cooling and shrinkage state.

[0046] In order to improve the pressing efficiency of cylinder body 500 and cylinder liner 400, the number of supporting protrusions 120 on the conveying plate 110 is multiple; the multiple supporting protrusions 120 are arranged side by side on the conveying plate 110.

[0047] Multiple supporting protrusions 120 are used to ensure that each cylinder liner 400 is protected against wear during transport and transfer, thereby improving assembly efficiency.

[0048] Please see Figure 6 This disclosure also provides a processing method using the cylinder liner press-fitting equipment for diesel engine cylinder blocks as described above. By providing a supporting protrusion 120 with a cold air blowing function on the conveyor plate 110, the cylinder liner 400 is blown by cold air during the feeding and conveying process, reducing the friction between the cylinder liner 400 and the conveyor plate 110 and reducing the wear of the cylinder liner 400 during feeding. During the transfer process, the cylinder liner 400 is centered by cold air, making the cylinder liner 400 and the supporting protrusion 120 coaxial, thereby making the cylinder liner 400 and the clamping part of the transfer mechanism 200 coaxial, reducing the wear during transfer. Before assembly, the cylinder liner 400 is cooled and contracted by cold air, reducing the interference between the cylinder liner 400 and the cylinder block 500, making the press-fitting process more stable and further reducing scratches on the surface of the cylinder liner 400.

[0049] Specifically, the processing method includes: S110: The cylinder liner 400 is fitted onto the supporting protrusion 120 on the conveyor plate 110; S120: The cylinder liner 400 is conveyed by the feeding mechanism 100; S130: Cold air is blown from the cold air outlet 1221 to the air blowing hole 121 through the vortex tube 122 to adjust the position of the cylinder liner 400, and at the same time, the cylinder liner 400 is cooled and contracted. S140: After the transfer mechanism 200 picks up the cylinder liner 400, it places it on the cylinder body 500 of the pressing mechanism 300 and presses it together.

[0050] In summary, the present invention provides a cylinder liner press-fitting device and its processing method for a diesel engine cylinder block. The cylinder liner press-fitting device for a diesel engine cylinder block includes: a feeding mechanism 100 for feeding cylinder liners 400; a transfer mechanism 200 disposed above the feeding mechanism 100 and for transferring the cylinder liners 400; and a press-fitting mechanism 300 disposed at the unloading end of the feeding mechanism 100 and for conveying the cylinder block 500 and pressing the cylinder liners 400 transferred by the transfer mechanism 200 into the cylinder block 500. The feeding mechanism 100 is provided with multiple conveying plates 110 for conveying the cylinder liners 400. The cylinder liner 400 is provided with a supporting protrusion 120, which is used to engage the cylinder liner 400. The side wall of the supporting protrusion 120 is provided with a plurality of air blowing holes 121 at intervals. The bottom of the supporting protrusion 120 is provided with a vortex tube 122. The cold air outlet 1221 of the vortex tube 122 is connected to the air blowing holes 121. When the feeding mechanism 100 conveys the cylinder liner 400, the position of the cylinder liner 400 is adjusted by the supporting protrusion 120 so that the cylinder liner 400 is coaxial with the clamping part of the transfer mechanism 200. At the same time, the cylinder liner 400 is cooled and contracted by the cold air blown out from the air blowing holes 121 so that the cylinder liner 400 can be inserted into the cylinder body 500. By providing a support protrusion 120 with a cold air blowing function on the conveyor plate 110, the cylinder liner 400 is blown by cold air during the feeding and conveying process, reducing the friction between the cylinder liner 400 and the conveyor plate 110 and reducing the wear of the cylinder liner 400 during feeding. During the transfer process, the cylinder liner 400 is centered by cold air, making the cylinder liner 400 and the support protrusion 120 coaxial, thereby making the cylinder liner 400 and the clamping part of the transfer mechanism 200 coaxial, reducing the wear during transfer. Before assembly, the cylinder liner 400 is cooled and contracted by cold air, reducing the interference between the cylinder liner 400 and the cylinder body 500, making the pressing process more stable, and further reducing scratches on the surface of the cylinder liner 400.

[0051] In the description of the embodiments of the present invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0052] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention 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 the invention. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as a second element, component, region, layer, or segment.

[0053] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0054] In the above discussion, unless otherwise stated, when used to describe numerical values, the terms “about,” “approximately,” “basically,” etc., indicate a change of + / - 10% in that value.

[0055] Based on the above-described preferred embodiments of the present invention, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A cylinder liner press-fitting device for a diesel engine cylinder block, characterized in that, include: A feeding mechanism (100) is used to feed cylinder liners (400); A transfer mechanism (200) is disposed above the feeding mechanism (100) and is used to transfer the cylinder liner (400); A pressing mechanism (300) is provided at the unloading end of the feeding mechanism (100) and is used to convey the cylinder body (500) and press the cylinder liner (400) transferred by the transfer mechanism (200) into the cylinder body (500); The feeding mechanism (100) is provided with a plurality of conveying plates (110) for conveying the cylinder liner (400). The conveyor plate (110) is provided with a supporting protrusion (120), and the supporting protrusion (120) is used to engage the cylinder liner (400); The sidewall of the supporting protrusion (120) is provided with a plurality of air holes (121) at intervals. The bottom of the supporting protrusion (120) is provided with a vortex tube (122). The cold air outlet (1221) of the vortex tube (122) is connected to the air blowing hole (121); When the feeding mechanism (100) conveys the cylinder liner (400), the position of the cylinder liner (400) is adjusted by the supporting protrusion (120) so that the cylinder liner (400) is coaxial with the clamping part of the transfer mechanism (200). At the same time, the cylinder liner (400) is cooled and contracted by the cold air blown out from the air blowing hole (121) so that the cylinder liner (400) can be inserted into the cylinder body (500).

2. The cylinder liner press-fitting equipment for diesel engine cylinder blocks as described in claim 1, characterized in that, The supporting protrusion (120) includes: The first truncated cone (123) and the second truncated cone (124); The first frustum (123) is positioned above the second frustum (124); The first frustum (123) is provided with a flow divider cavity (1231); An air intake chamber (1241) is provided inside the second truncated cone (124); The vortex tube (122) is disposed through the air intake cavity (1241), and the cold air outlet (1221) of the vortex tube (122) is connected to the flow divider cavity (1231).

3. The cylinder liner press-fitting equipment for diesel engine cylinder blocks as described in claim 2, characterized in that, The air blowing hole (121) is located on the side wall of the first frustum (123); Furthermore, the blowing direction of the air hole (121) is set along the tangent of the first frustum (123).

4. The cylinder liner press-fitting equipment for diesel engine cylinder blocks as described in claim 2, characterized in that, The air inlet (1222) of the vortex tube (122) is connected to the air inlet chamber (1241); Furthermore, the air inlet (1222) of the vortex tube (122) is opened along the tangential direction of the vortex tube (122); After the gas enters the vortex tube (122) from the inlet (1222), the cold air enters the splitting chamber (1231) from the cold air outlet (1221), and the hot air flows out from the hot air outlet.

5. The cylinder liner press-fitting equipment for diesel engine cylinder blocks as described in claim 4, characterized in that, The second truncated cone (124) has a notch (1242) on its side wall that communicates with the air intake chamber (1241). The notch (1242) communicates with the inner cavity of the conveyor plate (110); The inner cavity of the conveyor plate (110) is connected to an external air supply device.

6. The cylinder liner press-fitting equipment for diesel engine cylinder blocks as described in claim 5, characterized in that, The feeding mechanism (100) is also provided with air supply connectors (130) on both sides. The gas supply connector (130) is connected to an external gas supply device; Furthermore, the gas supply connector (130) abuts against the side wall of the conveying plate (110) via a return spring; An air inlet is provided at the mating point between the side wall of the conveying plate (110) and the air supply connector (130); When the conveyor plate (110) is conveyed by the feeding mechanism (100) to the air supply connector (130) inserted into the air inlet, the external air supply device supplies air to the inner cavity of the conveyor plate (110).

7. The cylinder liner press-fitting equipment for diesel engine cylinder blocks as described in claim 6, characterized in that, The number of air supply connectors (130) on each side of the feeding mechanism (100) is multiple; Furthermore, multiple air supply connectors (130) are arranged along the feeding direction of the feeding mechanism (100) to pre-cool and shrink the cylinder liner (400).

8. The cylinder liner press-fitting equipment for diesel engine cylinder blocks as described in claim 1, characterized in that, The number of supporting protrusions (120) on the conveyor plate (110) is multiple; Multiple supporting protrusions (120) are arranged side by side on the conveyor plate (110).

9. A processing method using the cylinder liner press-fitting equipment for diesel engine cylinder blocks as described in claim 1, characterized in that, The processing method includes: The cylinder liner (400) is fitted onto the supporting protrusion (120) on the conveyor plate (110); The cylinder liner (400) is conveyed by the feeding mechanism (100); Cold air is blown from the cold air outlet (1221) to the air blowing hole (121) through the vortex tube (122) to adjust the position of the cylinder liner (400) and at the same time, the cylinder liner (400) is cooled and contracted. After the transfer mechanism (200) picks up the cylinder liner (400), it is placed on the cylinder body (500) of the pressing mechanism (300) and pressed together by the pressing mechanism (300).

10. The processing method for cylinder liner press-fitting equipment for diesel engine cylinder blocks as described in claim 9, characterized in that, The supporting protrusion (120) includes: The first truncated cone (123) and the second truncated cone (124); The first frustum (123) is positioned above the second frustum (124); The first frustum (123) is provided with a flow divider cavity (1231); An air intake chamber (1241) is provided inside the second truncated cone (124); The vortex tube (122) is disposed through the air intake cavity (1241), and the cold air outlet (1221) of the vortex tube (122) is connected to the flow divider cavity (1231).

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