Cylinder block structure with height reduction and two-way fixation

Abstract

The present invention discloses a cylinder block structure for height reduction and two - type fixation, which includes a guide rail installation part, a first horizontal bolt hole, a vertical bolt through - hole, an inclined rib of the installation part, and a second horizontal bolt hole; the guide rail installation part is arranged along the bottom edges on both sides of the cylinder block and extends outward in the horizontal direction; the first horizontal bolt holes are uniformly distributed at positions on the side walls of the cylinder block close to the guide rail installation part; the vertical bolt through - holes are uniformly distributed on the guide rail installation part, and the central axis of the vertical bolt through - hole intersects and is perpendicular to the central axis of a first horizontal bolt hole; the inclined rib of the installation part is arranged between the upper surface of the guide rail installation part on both sides of the first horizontal bolt hole and the vertical bolt through - hole and the bottom of the side wall of the cylinder block; the second horizontal bolt hole is at least arranged above the outermost first horizontal bolt holes at both ends of the side wall of the cylinder block; the independent installation feet are fixed on the first horizontal bolt holes of the cylinder block through installation bolts. Thereby, the installation height of the whole machine can be reduced.

Description

Technical Field

[0001] The present invention relates to the field of engine manufacturing, and particularly to a cylinder block with reduced height and two - type fixation. Background Art

[0002] Many existing diesel engines, such as the 6C cylinder block, are mainly targeted at heavy - load markets such as cargo ships. Due to the narrow cabin and insufficient lateral space, the installation type is designed as rail installation. As Figure 1 shown, that is, through multiple through - holes 1 on both sides of the bottom of the cylinder block plus bolts and nuts, it is longitudinally installed and fixed on the rail, so as to minimize the overall lateral dimension of the whole machine. However, in some countries, for example, on the ships of Korean customers, the installation conditions of the rail cannot be met. They put forward the requirement that a special engine foot installation like that of a boat engine can be used.

[0003] As Figure 2 shown, the existing cylinder block is fixed on the rail by longitudinal installation of bolts. The rail is located below both sides of the cylinder block, and the bolts are vertically and longitudinally installed and fixed on the rail through nuts. Due to the narrow lateral space, only a narrow oil pan can be used in this fixing scheme. In order to ensure sufficient oil volume, the oil pan must increase its height to increase the capacity. The height of the oil pan in this scheme even reaches about 345 mm, as shown by the oil pan 2 in Figure 2 , thus increasing the overall height of the engine. If it is used as a generator set, then with the addition of peripheral components, the height of the whole set will be very high, bringing great inconvenience to transportation and entry. It often needs to be disassembled into parts for entry and then assembled into a generator set, and the working efficiency is also affected to a certain extent. To solve the above problems, a new installation method of the cylinder block that can avoid the above problems should be proposed.

[0004] The information disclosed in this background art section is only intended to enhance the overall understanding of the present invention and should not be regarded as an admission or any form of implication that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Invention

[0005] The purpose of the present invention is to provide a cylinder block structure with reduced height and two - type fixation, which can improve the applicable range of the existing cylinder block and can select an oil pan with a large width and a small height, so as to reduce the overall height of the whole machine.

[0006] To achieve the above object, the present invention provides a cylinder block structure for height reduction and two-mode fixation, including a cylinder block and at least four independently installed feet; the cylinder block includes a guide rail installation part, a plurality of first transverse bolt holes, vertical bolt through holes, multiple pairs of inclined ribs on the installation part and second transverse bolt holes; the guide rail installation part is arranged along the bottom edges on both sides of the cylinder block and extends outward in the horizontal direction; the plurality of first transverse bolt holes are evenly distributed on the side walls of the cylinder block close to the guide rail installation part; the vertical bolt through holes are evenly distributed on the guide rail installation part, and the central axis of each vertical bolt through hole intersects and is perpendicular to the central axis of a first transverse bolt hole; multiple pairs of inclined ribs on the installation part are arranged between the upper surface of the guide rail installation part corresponding to a first transverse bolt hole and a vertical bolt through hole and the bottom of the side wall of the cylinder block; the second transverse bolt holes are arranged at least above the two outermost first transverse bolt holes at both ends of the side wall of the cylinder block; at least four independently installed feet are fixed to the first transverse bolt holes of the cylinder block through installation bolts.

[0007] In a preferred embodiment, the central axis of the second transverse bolt hole is parallel to the central axis of the first transverse bolt hole below it.

[0008] In a preferred embodiment, the central axis of the second transverse bolt hole, the central axis of the first transverse bolt hole below it, and the central axis of the corresponding vertical bolt through hole are co-planar in the same vertical plane.

[0009] In a preferred embodiment, when viewed along the crankshaft axis of the cylinder block, the independently installed feet are in an M-shaped structure. The independently installed feet include a horizontal section, a vertical section, and a transition section; the vertical section is perpendicular to the horizontal section; the transition section is connected between the horizontal section and the vertical section, and the transition section bulges in the direction sandwiched by the horizontal section and the vertical section, and a clearance space is formed below it; the clearance space is used to avoid the guide rail installation part of the cylinder block.

[0010] In a preferred embodiment, the independently installed feet further include at least two transverse bosses, transverse installation holes, and a plurality of vertical installation holes; at least two transverse bosses are arranged at both ends of the top edge of the vertical section, and the outer end surface of the transverse boss is used for fitting and positioning with the end surface of the second transverse bolt hole; the transverse installation holes are arranged on the transverse bosses and penetrate the transverse bosses, and the transverse installation holes are used to connect and fix with the second transverse bolt holes through installation bolts; the plurality of vertical installation holes are arranged on the horizontal section perpendicular to the horizontal section.

[0011] In a preferred embodiment, the outer end surface of the transverse boss is perpendicular to the lower plane of the horizontal section, and the lower plane of the horizontal section is coplanar with the lower plane of the guide rail installation part.

[0012] In a preferred embodiment, the independent mounting foot further includes a pair of avoidance grooves, which are arranged on the outer surfaces of the vertical section, the transition section and the horizontal section. The pair of avoidance grooves are used to avoid a pair of mounting part diagonal ribs, and a pair of relief ribs are formed by bulging on the inner surfaces of the vertical section, the transition section and the horizontal section.

[0013] In a preferred embodiment, the independent mounting foot further includes avoidance counterbores, which are arranged on the outer surfaces of the vertical section and the transition section below each transverse boss. The avoidance counterbores are used to avoid the bolts installed in the first transverse bolt holes, and a relief protrusion is formed by bulging on the inner surfaces of the vertical section and the transition section.

[0014] In a preferred embodiment, the independent mounting foot further includes positioning holes, which are arranged on the horizontal section.

[0015] In a preferred embodiment, the independent mounting foot is manufactured by integral molding.

[0016] Compared with the prior art, the cylinder block structure with height reduction and two-mode fixation of the present invention has the following beneficial effects: In this solution, second transverse bolt holes are arranged above the first transverse bolt holes at both ends of the side walls on both sides of the original cylinder block, and at the same time, an independent mounting foot designed and manufactured to cooperate with this place is used. The independent mounting foot fully considers the avoidance at the first transverse bolt holes, the mounting part diagonal ribs and the guide rail mounting part, and at the same time, relief ribs that can strengthen the strength and stiffness are formed on the independent mounting foot; The equipped independent mounting foot can greatly broaden the installation and use range of this type of cylinder block, enabling it to select an oil pan with a large width and a small height, and can reduce the height of the whole machine by more than 100 mm; And in some occasions, the repeated disassembly and assembly due to height tolerance can be omitted, thereby further enhancing the market competitiveness and bringing better economic benefits; In addition, the cylinder block with the independent mounting foot fixing scheme and the cylinder block with the guide rail mounting method can be produced from the same blank, and the processing method can be selected according to the market use. The design switching cost is low, and it can further meet more market demands. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a top view schematic diagram of a cylinder block according to an embodiment of the prior art;

[0018] Figure 2 is a side view schematic diagram of a cylinder block and an oil pan according to an embodiment of the prior art;

[0019] Figure 3 is a three-dimensional structure schematic diagram of a cylinder block structure according to an embodiment of the present invention;

[0020] Figure 4 is Figure 3 a partial enlarged schematic diagram of part Ⅰ of

[0021] Figure 5 is a schematic top view of a cylinder block structure according to an embodiment of the present invention;

[0022] Figure 6 is Figure 5 a partial enlarged schematic view of part II of

[0023] Figure 7 is a schematic front view of an independently mounted engine mount according to an embodiment of the present invention;

[0024] Figure 8 is a schematic left view of an independently mounted engine mount according to an embodiment of the present invention;

[0025] Figure 9 is a schematic top view of an independently mounted engine mount according to an embodiment of the present invention;

[0026] Figure 10 is a schematic three - dimensional view of an independently mounted engine mount according to an embodiment of the present invention.

[0027] Main reference numerals description:

[0028] 10 - cylinder block, 101 - guide rail mounting part, 102 - first transverse bolt hole, 103 - vertical bolt through - hole, 104 - mounting part diagonal rib, 105 - second transverse bolt hole, 20 - independently mounted engine mount, 201 - horizontal section, 202 - vertical section, 203 - transition section, 204 - relief rib, 205 - transverse boss, 206 - transverse mounting hole, 207 - vertical mounting hole, 208 - positioning hole, 209 - relief counterbore, 210 - relief protrusion, 211 - relief groove, 212 - positioning boss, 30 - mounting bolt. Detailed embodiments

[0029] The following combines the drawings to describe the detailed embodiments of the present invention in detail, but it should be understood that the protection scope of the present invention is not limited by the detailed embodiments.

[0030] Unless otherwise clearly stated, throughout the specification and claims, the term "comprise" or its variations such as "comprises" or "including" etc. will be understood to include the stated elements or components, without excluding other elements or other components.

[0031] Such as Figures 1 to 4As shown, a cylinder block structure with height reduction and two-way fixation according to a preferred embodiment of the present invention includes a cylinder block 10 and at least four independently installed feet 20; the cylinder block 10 includes a guide rail installation part 101, a plurality of first horizontal bolt holes 102, vertical bolt through holes 103, multiple pairs of installation part diagonal ribs 104, and second horizontal bolt holes 105. The guide rail installation part 101 is arranged along the bottom edges on both sides of the cylinder block 10 and extends outward in the horizontal direction. The plurality of first horizontal bolt holes 102 are evenly distributed on the side walls of the cylinder block 10 close to the guide rail installation part 101. The vertical bolt through holes 103 are evenly distributed on the guide rail installation part 101, and the central axis of each vertical bolt through hole 103 intersects and is perpendicular to the central axis of a first horizontal bolt hole 102. The multiple pairs of installation part diagonal ribs 104 are arranged between the upper surface of the guide rail installation part 101 on both sides of a corresponding first horizontal bolt hole 102 and a vertical bolt through hole 103 and the bottom of the side wall of the cylinder block 10. The second horizontal bolt holes 105 are arranged at least above the two outermost first horizontal bolt holes 102 at both ends of the side wall of the cylinder block 10. At least four independently installed feet 20 are fixed to the first horizontal bolt holes 102 of the cylinder block 10 through installation bolts 30.

[0032] Please refer to Figures 3 to 4 , in some embodiments, the central axis of the second horizontal bolt hole 105 is parallel to the central axis of the first horizontal bolt hole 102 below it. The central axis of the second horizontal bolt hole 105, the central axis of the first horizontal bolt hole 102 below it, and the central axis of the corresponding vertical bolt through hole 103 are co-planar in the same vertical plane. This is considered for the installation force and installation stability of the independently installed feet 20.

[0033] As Figures 7 to 10 shown, in some embodiments, the independently installed feet 20 are in a structure similar to an "M" shape when viewed along the crankshaft axis of the cylinder block 10. The independently installed feet 20 include a horizontal section 201, a vertical section 202, and a transition section 203. The vertical section 202 is perpendicularly arranged with the horizontal section 201. The transition section 203 is connected between the horizontal section 201 and the vertical section 202, and the transition section 203 bulges towards the direction sandwiched by the horizontal section 201 and the vertical section 202, and a clearance space is formed below it. The clearance space is used to avoid the guide rail installation part 101 of the cylinder block 10.

[0034] In some embodiments, the independent mounting foot 20 further includes at least two lateral bosses 205, lateral mounting holes 206, and a plurality of vertical mounting holes 207. At least two lateral bosses 205 are provided at both ends of the top edge of the vertical section 202, and the outer end surface of the lateral boss 205 is used for fitting and positioning with the end surface of the second lateral bolt hole 105. The lateral mounting holes 206 are provided on the lateral boss 205 and penetrate through the lateral boss 205, and the lateral mounting holes 206 are used for connecting and fixing with the second lateral bolt hole 105 through the mounting bolts 30. The plurality of vertical mounting holes 207 are provided on the horizontal section 201 perpendicular to the horizontal section 201.

[0035] Please refer to Figures 7 to 10 , in some embodiments, the outer end surface of the lateral boss 205 is perpendicular to the lower plane of the horizontal section 201, and the lower plane of the horizontal section 201 is coplanar with the lower plane of the guide rail mounting portion 101.

[0036] In some embodiments, the independent mounting foot 20 further includes a pair of relief grooves 211 provided on the outer surfaces of the vertical section 202, the transition section 203, and the horizontal section 201. The pair of relief grooves 211 are used for avoiding a pair of mounting portion ribs 104, and a pair of relief ribs 204 are formed by bulging on the inner surfaces of the vertical section 202, the transition section 203, and the horizontal section 201.

[0037] In some embodiments, the independent mounting foot 20 further includes relief counterbores 209 provided on the outer surfaces of the vertical section 202 and the transition section 203 below each lateral boss 205. The relief counterbores 209 are used for avoiding the bolts mounted on the first lateral bolt holes 102, and relief protrusions 210 are formed by bulging on the inner surfaces of the vertical section 202 and the transition section 203.

[0038] In some embodiments, the independent mounting foot 20 further includes positioning holes 208 provided on the horizontal section 201. The positioning holes 208 are used for accurately positioning the entire engine through positioning pins when the independent mounting foot 20 is connected and mounted with other mounting portions. In some embodiments, the independent mounting foot 20 further includes positioning bosses 212 provided on the outer surface at the junction of the vertical section 202 and the transition section 203 and located below the relief counterbores 209. The lower plane of the positioning boss 212 is parallel and fitted with the upper plane of the guide rail mounting portion 101. When the independent mounting foot 20 is mounted, the lower plane of the positioning boss 212 can abut against the upper plane of the guide rail mounting portion 101, making the installation of the independent mounting foot 20 and the engine more firm and stable.

[0039] In some embodiments, the bolt avoidance at the first horizontal bolt hole and the avoidance of the inclined rib 104 of the mounting portion can actually be designed as a hollow avoidance portion. In this embodiment, it is set as a closed one, and both are bulged inward to form a relief rib 204 and a relief protrusion 210. First, this can strengthen the strength and stiffness of the independent mounting foot 20 itself; second, it can keep the upper and lower surfaces of the independent mounting foot 20 in a closed state, preventing external dirt and the like from seeping or falling into the mounting surface between the independent mounting foot 20 and the cylinder block 10 and the mounting surface between the independent mounting foot 20 and other mounting portions, which may affect the installation and positioning of the engine itself.

[0040] In some embodiments, the independent mounting foot 20 is integrally formed, and preferably can be produced from the same blank as the cylinder block 10. In this way, the processing method can be selected according to market applications, making the design switching cost lower and further meeting more market demands.

[0041] In some embodiments, the second horizontal bolt hole 105 on the cylinder block 10 can be one of the options. In this embodiment, two second horizontal bolt holes 105 are shown in each group, but the present invention is not limited thereto and can be increased according to the actual needs of the power model of the engine, and even the number of independent mounting feet 20 can be increased. The independent mounting foot 20 can be used as an optional accessory for customers to select according to actual needs.

[0042] In summary, the cylinder block structure with height reduction and two - type fixation of the present invention has the following advantages: By providing second horizontal bolt holes above the first horizontal bolt holes at both ends of the side walls on both sides of the original cylinder block, and at the same time cooperating with the design and manufacture of the independent mounting foot for installation at this location, the independent mounting foot fully considers the avoidance at the first horizontal bolt hole, the inclined rib of the mounting portion, and the guide rail mounting portion, and at the same time, a relief rib that can strengthen the strength and stiffness is formed on the independent mounting foot; The provision of the independent mounting foot can greatly broaden the installation and use range of this type of cylinder block, enabling it to select an oil pan with a large width and a small height, and reducing the overall height of the machine by more than 100 mm; And in some cases, the repeated disassembly and assembly due to height out - of - tolerance can be omitted, thereby further enhancing the market competitiveness and bringing better economic benefits; In addition, the cylinder block with the independent mounting foot fixation scheme and the cylinder block with the guide rail mounting method can be produced from the same blank, and the processing method can be selected according to market applications, with low design switching cost and further meeting more market demands.

[0043] The foregoing description of the specific exemplary embodiments of the present invention is for purposes of illustration and exemplification. These descriptions are not intended to limit the invention to the precise forms disclosed, and it is apparent that many modifications and variations are possible in light of the above teaching. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the present invention and its practical applications, so that those skilled in the art can implement and utilize the various different exemplary embodiments of the present invention, as well as various different selections and modifications. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A cylinder block structure for height reduction and two - mode fixation, Characterized in that, Comprising: A cylinder block, which includes: A guide rail installation part, which is arranged along the bottom edges on both sides of the cylinder block and extends outward in the horizontal direction; A plurality of first horizontal bolt holes, which are evenly distributed on the side walls of the cylinder block near the guide rail installation part; Vertical bolt through - holes, which are evenly distributed on the guide rail installation part, and the central axis of each vertical bolt through - hole intersects and is perpendicular to the central axis of a first horizontal bolt hole; Multiple pairs of installation part diagonal ribs, which are arranged between the upper surface of the guide rail installation part on both sides of a corresponding first horizontal bolt hole and a vertical bolt through - hole and the bottom of the side wall of the cylinder block; and Second horizontal bolt holes, which are arranged at least above the two outermost first horizontal bolt holes at both ends of the side wall of the cylinder block; and At least four independent installation feet, which are fixed to the first horizontal bolt holes of the cylinder block through installation bolts; Wherein, the central axis of the second horizontal bolt hole is parallel to the central axis of the first horizontal bolt hole below it; The central axis of a second horizontal bolt hole, the central axis of the first horizontal bolt hole below it, and the central axis of the corresponding vertical bolt through - hole are coplanar in the same vertical plane; Each independent installation foot is in an M - shaped structure when viewed along the crankshaft axis of the cylinder block. The independent installation foot includes: A horizontal section; A vertical section, which is perpendicularly arranged with respect to the horizontal section; and A transition section, which is connected between the horizontal section and the vertical section, and the transition section bulges in the direction clamped by the horizontal section and the vertical section, and forms an avoidance space below it; Wherein the avoidance space is used to avoid the guide rail installation part of the cylinder block.

2. The cylinder block structure for height reduction and two - mode fixation according to claim 1, Characterized in that, Each independent installation foot further includes: At least two horizontal bosses, which are arranged at both ends of the top edge of the vertical section, and the outer end surface of the horizontal boss is used for fitting and positioning with the end surface of the second horizontal bolt hole; Horizontal installation holes, which are arranged on the horizontal boss and penetrate through the horizontal boss, and the horizontal installation holes are used to connect and fix with the second horizontal bolt hole through the installation bolts; and A plurality of vertical installation holes, which are arranged on the horizontal section perpendicular to the horizontal section.

3. The cylinder block structure for height reduction and two - mode fixation according to claim 2, Characterized in that, The outer end surface of the horizontal boss is perpendicular to the lower plane of the horizontal section, and the lower plane of the horizontal section is coplanar with the lower plane of the guide rail installation part.

4. The cylinder block structure for height reduction and two - mode fixation according to claim 1, Characterized in that, The independent installation foot further includes a pair of avoidance grooves, which are arranged on the outer surfaces of the vertical section, the transition section, and the horizontal section. The pair of avoidance grooves are used to avoid a pair of installation part diagonal ribs, and the pair of avoidance grooves bulge on the inner surfaces of the vertical section, the transition section, and the horizontal section to form a pair of relief ribs.

5. The cylinder block structure for height reduction and two - mode fixation according to claim 2, Characterized in that, The independent mounting foot further includes an avoidance counterbore, which is arranged on the outer surfaces of the vertical section and the transition section below each of the transverse bosses. The avoidance counterbore is used to avoid the bolts installed in the first transverse bolt holes, and a relief protrusion is formed by the avoidance counterbore bulging on the inner surfaces of the vertical section and the transition section.

6. The cylinder block structure with height reduction and two-mode fixation according to claim 1, characterized in that, the independent mounting foot further includes a positioning hole, which is arranged on the horizontal section.

7. The cylinder block structure with height reduction and two-mode fixation according to claim 1, characterized in that, the independent mounting foot is integrally formed.

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