Horizontally opposed engine housing, engine device and vehicle

Abstract

The utility model relates to the technical field of engines, and discloses a horizontally opposed engine shell, an engine device and a vehicle, the shell comprises a first shell provided with a first bearing cover, and the first bearing cover is provided with a first mounting part; the second shell and the first shell are arranged in the first direction and are detachably connected; and the second bearing cover is detachably connected with the first bearing cover, the second bearing cover and the first bearing cover are matched to form a main bearing seat, the second bearing cover is provided with a second mounting part, and the first mounting part and the second mounting part are matched to form a main bearing hole. During assembly, the crankshaft is firstly placed on the first mounting part, then the second bearing cover is connected with the first bearing cover, and it is guaranteed that the crankshaft is mounted in the main bearing hole; and finally, the first shell and the second shell are connected to complete assembly. According to the scheme, a split assembly mode is adopted, inconvenience caused by installation of a main bearing bolt from a water jacket part is avoided, and the bearing seat is suitable for different types of horizontally opposed engines, so that the assembly adaptability of the bearing seat is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, and in particular to a horizontally opposed engine housing, an engine device and a vehicle. Background Art

[0002] The engine is a key component in a vehicle. There are many types of engines, and the horizontally opposed engine is one of them. In order to balance the inertia force of the crankshaft in the horizontally opposed engine, a main bearing hole for the crankshaft is usually added inside the cylinder block.

[0003] However, the main bearing bolts in the existing technology all need to be installed from the water jacket on the top surface of the engine body, which is only applicable to engines without cylinder liners. For wet engines, the water jacket on the top surface of the engine body cannot leak out, so there is a problem that the main bearing bolts cannot be installed.

[0004] Therefore, how to improve the assembly adaptability of the main bearing seat to adapt to different types of horizontally opposed engines has become a technical problem that needs to be solved urgently in this field. Utility Model Content

[0005] The purpose of this utility model is to at least solve the technical problem of how to improve the assembly adaptability of the main bearing seat to suit different types of horizontally opposed engines. This purpose is achieved through the following technical solutions:

[0006] In the first aspect, the utility model proposes a horizontally opposed engine casing, comprising: a first casing, having a first cylinder liner extending along a first direction, and a first bearing cover is provided on the first casing, the first bearing cover having a first mounting portion; a second casing, having a second cylinder liner extending along the first direction, the second casing and the first casing are arranged along the first direction and are detachably connected, along the first direction, the first bearing cover is located on a side of the first casing close to the second casing; and a second bearing cover, detachably connected to the first bearing cover, the second bearing cover cooperates with the first bearing cover to form a main bearing seat, the second bearing cover has a second mounting portion, the first mounting portion and the second mounting portion cooperate to form a main bearing hole for mounting a crankshaft.

[0007] This horizontally opposed engine casing is assembled using a split assembly method. First, the cylinder bore of the cylinder liner of the first casing is placed downward, that is, the first bearing cap is facing upward; then the crankshaft is placed on the first mounting portion, and the second bearing cap is connected to the first bearing cap to form the main bearing seat, while ensuring that the crankshaft is installed in the main bearing hole formed by the first and second mounting portions; finally, the first and second casings are connected to complete the assembly of the horizontally opposed engine casing and crankshaft. Therefore, this horizontally opposed engine casing adopts a split assembly method, avoiding the inconvenience of installing the main bearing bolts from the water jacket area, and is suitable for different types of horizontally opposed engines, thereby improving the assembly adaptability of the bearing seat.

[0008] In some embodiments of the present invention, the first shell has a first installation plane, and the second shell has a second installation plane that is in contact with the first installation plane.

[0009] In some embodiments of the present invention, the first bearing cover has a third mounting plane, and the second bearing cover has a fourth mounting plane that is in contact with the third mounting plane.

[0010] In some embodiments of the present invention, the second bearing cover is detachably connected to the first bearing cover by at least one fastening screw.

[0011] In some embodiments of the present invention, the second bearing cover is detachably connected to the first bearing cover by two fastening screws, and the two fastening screws are symmetrically arranged relative to the main bearing hole.

[0012] In some embodiments of the present invention, it is characterized in that the first shell is detachably connected to the second shell by at least one assembly screw.

[0013] In some embodiments of the present invention, the assembly screw includes a first screw and a second screw, the first screw passes through the first shell and is threadedly connected to the second shell, and the second screw passes through the second shell and is threadedly connected to the first shell.

[0014] In some embodiments of the present invention, there are two of the first screw and the second screw.

[0015] In the second aspect, the utility model proposes an engine device, comprising a first cylinder, a second cylinder, a crankshaft and any one of the above-mentioned horizontally opposed engine casings, wherein the crankshaft is passed through the main bearing hole, the first cylinder is mounted on the first cylinder liner, and the second cylinder is mounted on the second cylinder liner.

[0016] In a third aspect, the present invention provides a vehicle comprising a vehicle body and the above-mentioned engine device.

[0017] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present invention. The same reference numerals are used throughout the accompanying drawings to denote the same components. In the accompanying drawings:

[0019] Figure 1 A schematic structural diagram of a horizontally opposed engine housing provided by an embodiment of the present utility model;

[0020] Figure 2 A schematic structural diagram of a horizontally opposed engine housing provided by an embodiment of the present utility model at another angle;

[0021] Figure 3 A partial structural cross-sectional view of a horizontally opposed engine housing provided by an embodiment of the present utility model;

[0022] Figure 4 A partial structural cross-sectional view of the horizontally opposed engine housing and crankshaft during assembly provided by an embodiment of the present utility model.

[0023] The reference numerals are as follows:

[0024] 1000. Horizontally opposed engine housing;

[0025] 100, first housing; 110, first cylinder liner; 111, first cylinder hole;

[0026] 200, second housing; 210, second cylinder liner; 211, second cylinder hole;

[0027] 300, main bearing seat; 310, first bearing cap; 311, first mounting portion; 320, second bearing cap; 322, second mounting portion; 301, main bearing hole;

[0028] 400, fastening screws;

[0029] 510, first screw; 520, second screw;

[0030] 2000. Crankshaft. DETAILED DESCRIPTION

[0031] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0032] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0033] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0034] For ease of description, spatially relative terms may be used herein to describe the relationship of one element or feature relative to another element or feature as shown in the figures, such as "inside," "outside," "inside," "outside," "below," "beneath," "above," and the like. Such spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "below" or "below" another element or feature would then be oriented as "above" or "above" another element or feature. Thus, the example term "below" can include both above and below orientations. The device may be otherwise oriented (rotated 90 degrees or in other orientations) and the spatially relative descriptors used herein are interpreted accordingly.

[0035] Figure 1 A schematic structural diagram of a horizontally opposed engine housing provided by an embodiment of the present utility model; Figure 2 A schematic structural diagram of a horizontally opposed engine housing provided by an embodiment of the present utility model at another angle; Figure 3A partial structural cross-sectional view of a horizontally opposed engine housing provided by an embodiment of the present utility model; Figure 4 This is a partial structural cross-sectional view of the horizontally opposed engine housing and crankshaft assembly provided by the embodiment of the present invention. Figures 1 to 4 As shown, an embodiment of the present invention provides a horizontally opposed engine casing 1000, comprising: in a first aspect, the present invention proposes a horizontally opposed engine casing 1000, comprising: a first casing 100, having a first cylinder liner 110 extending along a first direction, and a first bearing cover 310 is provided on the first casing 100, the first bearing cover 310 having a first mounting portion 311; a second casing 200, having a second cylinder liner 210 extending along the first direction, the second casing 200 and the first casing 100 are arranged along the first direction and are detachably connected, along the first direction, the first bearing cover 310 is located on a side of the first casing 100 close to the second casing 200; and a second bearing cover 320, detachably connected to the first bearing cover 310, the second bearing cover 320 cooperates with the first bearing cover 310 to form a main bearing seat 300, the second bearing cover 320 has a second mounting portion 322, the first mounting portion 311 and the second mounting portion 322 cooperate to form a main bearing hole 301 for mounting the crankshaft 2000.

[0036] For ease of description, the opening of the first cylinder liner 110 on the side away from the second housing 200 in the first direction is called the first cylinder hole 111 , and the opening of the second cylinder liner 210 on the side away from the first housing 100 in the first direction is called the second cylinder hole 211 .

[0037] In this embodiment, the horizontally opposed engine housing 1000 is installed in a split assembly manner. First, the first cylinder bore 111 is placed downward, that is, the first bearing cover 310 is facing upward; then the crankshaft 2000 is placed on the first mounting portion 311, and then the second bearing cover 320 is connected to the first bearing cover 310 to form a main bearing seat 300, while ensuring that the crankshaft 2000 is installed in the main bearing hole 301 formed by the first mounting portion 311 and the second mounting portion 322; finally, the second cylinder bore 211 is placed upward, and the first housing 100 and the second housing 200 are connected to complete the assembly of the horizontally opposed engine housing 1000 and the crankshaft 2000.

[0038] Therefore, this horizontally opposed engine housing 1000 adopts a split assembly method, avoiding the inconvenience caused by installing the main bearing bolts from the water jacket position, and is suitable for different types of horizontally opposed engines, thereby improving the assembly adaptability of the bearing seat.

[0039] According to an optional embodiment of the present invention, the first housing 100 has a first installation plane, and the second housing 200 has a second installation plane that is in contact with the first installation plane.

[0040] In this embodiment, after the main bearing seat 300 is assembled, the first housing 100 and the second housing 200 need to be connected to complete the assembly of the horizontally opposed engine housing 1000; and the setting of the first mounting plane and the second mounting plane can make the first housing 100 and the second housing 200 fit more closely with each other (see Figure 3 The connection position between the first shell 100 and the second shell 200 is the fit between the planes), thereby further ensuring the stability and sealing of the assembly of the first shell 100 and the second shell 200.

[0041] Among them, it is easy to understand that during assembly, a sealing structure such as a sealing gasket or a sealing ring can be set between the first mounting plane and the second mounting plane according to actual working conditions to further ensure the overall sealing of the horizontally opposed engine housing 1000.

[0042] According to an optional embodiment of the present invention, the first bearing cover 310 has a third installation plane, and the second bearing cover 320 has a fourth installation plane that is in contact with the third installation plane.

[0043] In this embodiment, similarly, from the above analysis of the first mounting plane and the second mounting plane, it can be seen that the connection between the two planes is conducive to stability and sealing (similarly, refer to Figure 3 The connection between the first bearing cover 310 and the second bearing cover 320 is the fit between the planes), therefore, the first bearing cover 310 and the second bearing cover 320 are also connected in a manner of two planes.

[0044] The first installation plane and the third installation plane may be in the same plane, and the second installation plane and the fourth installation plane may be in the same plane. Figure 3 As shown, while being able to complete the overall assembly of the horizontally opposed engine housing 1000, it also avoids the interference between the two bearing caps (i.e., the first bearing cap 310 and the second bearing cap 320) and the two housings (i.e., the first housing 100 and the second housing 200) during assembly.

[0045] like Figure 3 As shown, specifically, the first bearing cap 310 can be arc-shaped, with the arc concave toward the side away from the second housing 200 along the first direction, and the concave portion forming the first mounting portion 311. The second bearing cap 320 can also be arc-shaped, with the arc concave toward the side away from the first housing 100 along the first direction, and the concave portion forming the second mounting portion 322. It is easy to understand that the two cooperating arc-shaped structures can form an annular structure, namely, the main bearing seat 300 having the main bearing hole 301.

[0046] refer to Figure 3According to an optional embodiment of the present invention, the second bearing cover 320 is detachably connected to the first bearing cover 310 by at least one fastening screw 400 .

[0047] In this embodiment, a threaded hole can be provided on the second bearing cover 320, which passes through the second bearing cover 320 along the first direction, and a threaded hole can be provided on the third mounting plane of the first bearing cover 310. In this way, during assembly, after the crankshaft 2000 is placed on the first mounting portion 311, the second bearing cover 320 is connected to the first bearing cover 310 to form the main bearing seat 300, while ensuring that the crankshaft 2000 is installed in the main bearing hole 301 formed by the first mounting portion 311 and the second mounting portion 322. Then, the fastening screw 400 is passed through the second bearing cover 320 from the threaded hole on the second bearing cover 320, and then the fastening screw 400 is screwed into the threaded hole on the third mounting plane of the first bearing cover 310. Finally, the fastening screw 400 is tightened to complete the assembly of the main bearing seat 300.

[0048] This arrangement achieves a detachable connection between the first bearing cover 310 and the second bearing cover 320 by fastening the screws 400. While facilitating assembly and disassembly, it also ensures the stability of the main bearing seat 300, thereby ensuring the stability of the crankshaft 2000 installed in the main bearing hole 301.

[0049] Continue to refer Figure 3 According to an optional embodiment of the present invention, the second bearing cover 320 is detachably connected to the first bearing cover 310 by two fastening screws 400 , and the two fastening screws 400 are symmetrically arranged relative to the main bearing hole 301 .

[0050] In this embodiment, in order to further improve the stability of the main bearing seat 300, multiple fastening screws 400 can be provided, for example, two. The two fastening screws 400 are symmetrically arranged, which not only improves the connection strength between the first bearing cover 310 and the second bearing cover 320, but also ensures the uniformity of force.

[0051] It is easy to understand that the number of fastening screws 400 is not specifically limited. The situation of setting two fastening screws 400 in this embodiment is only for illustration. Under actual working conditions, the number of fastening screws 400 should be determined according to the working conditions and is not limited.

[0052] According to an optional embodiment of the present invention, it is characterized in that the first shell 100 is detachably connected to the second shell 200 by at least one assembly screw.

[0053] In this embodiment, after the main bearing seat 300 is assembled and the crankshaft 2000 is inserted into the main bearing hole 301 of the main bearing seat 300, the first housing 100 and the second housing 200 are connected by assembling screws to realize the overall assembly of the horizontally opposed engine housing 1000.

[0054] This arrangement realizes a detachable connection between the first shell 100 and the second shell 200 by assembling screws, which facilitates assembly and disassembly while ensuring the connection strength between the first shell 100 and the second shell 200.

[0055] refer to Figures 1 to 4 According to an optional embodiment of the present invention, the assembly screws include a first screw 510 and a second screw 520, the first screw 510 passes through the first shell 100 and is threadedly connected to the second shell 200, and the second screw 520 passes through the second shell 200 and is threadedly connected to the first shell 100.

[0056] In this embodiment, in order to improve the connection strength between the first shell 100 and the second shell 200 , a plurality of assembly screws are provided to achieve the connection between the first shell 100 and the second shell 200 .

[0057] Specifically, after the main bearing seat 300 is assembled and the crankshaft 2000 is inserted into the main bearing hole 301 of the main bearing seat 300, a screw is passed through the first housing 100 and continued to be screwed to the second mounting plane of the second housing 200; and a second screw 520 is passed through the second housing 200 and continued to be screwed to the first mounting plane of the first housing 100 to achieve the overall assembly of the horizontally opposed engine housing 1000.

[0058] It is easy to understand that the first screw 510 and the second screw 520 can be symmetrically arranged relative to the horizontally opposed engine housing 1000 as a whole to ensure that the horizontally opposed engine housing 1000 is evenly stressed during assembly, thereby improving the overall stability of the horizontally opposed engine housing 1000.

[0059] like Figure 1 and Figure 2 As shown, according to an optional embodiment of the present invention, there are two first screws 510 and two second screws 520 .

[0060] In this embodiment, it is easy to understand that since the overall volume of the horizontally opposed engine casing 1000 is relatively large, the first screw 510 and the second screw 520 can be set to multiple to further ensure the connection strength of the first casing 100 and the second casing 200; for example, two first screws 510 and two second screws 520 are set. Similarly, in order to ensure that the horizontally opposed engine casing 1000 is subjected to uniform force during assembly, and thus ensure the overall stability of the engine casing, these four assembly screws (i.e., two first screws 510 and two second screws 520) should also be symmetrically arranged relative to the overall horizontally opposed engine casing 1000.

[0061] An embodiment of the present invention also provides an engine device, including a first cylinder, a second cylinder, a crankshaft 2000 and any one of the above-mentioned horizontally opposed engine housings 1000, the crankshaft 2000 is passed through the main bearing hole 301, the first cylinder is installed in the first cylinder liner 110, and the second cylinder is installed in the second cylinder liner 210.

[0062] In this embodiment, the beneficial effects of the engine device are the same as the beneficial effects of any of the above-mentioned horizontally opposed engine housings 1000, and both are applicable to different types of horizontally opposed engines, thereby improving the assembly adaptability of the bearing seat. For specific analysis, please refer to the effect analysis of any of the above-mentioned horizontally opposed engine housings 1000, which will not be repeated here.

[0063] An embodiment of the present utility model further provides a vehicle, comprising a vehicle body and the above-mentioned engine device.

[0064] In this embodiment, similarly, the beneficial effects of the vehicle are the same as the beneficial effects of the above-mentioned engine, and will not be repeated here.

[0065] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A horizontally opposed engine housing, characterized in that: include: A first housing having a first cylinder sleeve extending in a first direction, and a first bearing cover is provided on the first housing, and the first bearing cover has a first mounting portion; a second housing having a second cylinder sleeve extending along the first direction, the second housing being aligned with the first housing along the first direction and being detachably connected, and the first bearing cap being located on a side of the first housing close to the second housing along the first direction; as well as The second bearing cover is detachably connected to the first bearing cover, and the second bearing cover cooperates with the first bearing cover to form a main bearing seat. The second bearing cover has a second mounting portion, and the first mounting portion and the second mounting portion cooperate to form a main bearing hole for mounting the crankshaft.

2. The horizontally opposed engine housing according to claim 1, characterized in that: The first shell has a first installation plane, and the second shell has a second installation plane that is in contact with the first installation plane.

3. The horizontally opposed engine housing according to claim 2, characterized in that: The first bearing cover has a third mounting plane, and the second bearing cover has a fourth mounting plane that is in contact with the third mounting plane.

4. The horizontally opposed engine housing according to claim 1, characterized in that: The second bearing cover is detachably connected to the first bearing cover by at least one fastening screw.

5. The horizontally opposed engine housing according to claim 4, characterized in that: The second bearing cover is detachably connected to the first bearing cover via two fastening screws, and the two fastening screws are symmetrically arranged relative to the main bearing hole.

6. The horizontally opposed engine housing according to any one of claims 1 to 5, characterized in that: The first shell is detachably connected to the second shell by at least one assembly screw.

7. The horizontally opposed engine housing according to claim 6, characterized in that: The assembly screw includes a first screw and a second screw. The first screw passes through the first housing and is threadedly connected to the second housing. The second screw passes through the second housing and is threadedly connected to the first housing.

8. The horizontally opposed engine housing according to claim 7, characterized in that: There are two first screws and two second screws.

9. An engine device, characterized in that: It comprises a first cylinder, a second cylinder, a crankshaft and a horizontally opposed engine housing as described in any one of claims 1 to 8, wherein the crankshaft is passed through the main bearing hole, the first cylinder is mounted on the first cylinder liner, and the second cylinder is mounted on the second cylinder liner.

10. A vehicle, characterized in that: The invention comprises a vehicle body and the engine device according to claim 9.

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