WO2014000411A1

WO2014000411A1 - Engine body of multi-cylinder v-type water-cooled diesel engine

Info

Publication number: WO2014000411A1
Application number: PCT/CN2013/000653
Authority: WO
Inventors: 肖亨琳
Original assignee: 无锡开普动力有限公司
Priority date: 2012-06-27
Filing date: 2013-06-03
Publication date: 2014-01-03
Also published as: CN102705095B; CN102705095A

Abstract

The present invention relates to an engine body of a multi-cylinder V-type water-cooled diesel engine characterized in that: five first front reinforced bars are symmetrically arranged respectively on both sides of the periphery of the flywheel housing joint surface, multiple second front reinforced bars are arranged within the flywheel housing joint surface, the second front reinforced bars are connected at one end thereof to the rim of a camshaft mounting hole front opening, the second front reinforced bars are connected at the other end thereof to a mounting hole on the flywheel housing joint surface; five first rear reinforced bars are symmetrically arranged respectively on both sides of the periphery of the gear chamber joint surface, multiple second rear reinforced bars are arranged within the gear chamber joint surface, the second rear reinforced bars are connected at one end thereof to the rim of a camshaft mounting hole rear opening, and the second rear reinforced bars are connected at the other end thereof to a mounting hole on the gear chamber joint surface. The present invention is reasonably structured, not only meets design requirements for oil passage and water passage of the engine, but also achieves great control over the engine body strength, reduces engine body vibration, and reduces operating noise.

Description

The body of a multi-cylinder V-type water-cooled diesel engine

Technical field

The invention relates to a body of a multi-cylinder V-type water-cooled diesel engine, belonging to the field of engine power units.

Background technique

The body of the diesel engine is a support for mounting moving parts and accessories, which is the basis for the installation of the diesel engine.

The V-engine shortens the length and height of the engine and is compact, reducing the weight of the engine. In the design of the body structure of the V-type water-cooled multi-cylinder diesel engine, the oil passage and the waterway structure are combined, and the strength and rigidity of the body are not affected, and the structure of the body is complicated. In the conventional technology, while controlling the water temperature and oil temperature of the engine, the strength control of the body is poor, the local vibration of the body is large, and the working noise is large, which affects the use effect of other parts of the engine.

Summary of the invention

The object of the present invention is to overcome the deficiencies in the prior art and provide a multi-cylinder V-type water-cooled diesel engine body, which has a reasonable structure, can meet the design requirements of the oil passage and the water passage of the engine, and the strength of the body can also It is well controlled, the body vibration is small, and the working noise is low.

According to the technical solution provided by the present invention, a body of a multi-cylinder V-type water-cooled diesel engine has a flywheel shell joint surface on a front end surface thereof, and a gear chamber joint surface on a rear end surface of the machine body; a cylinder block, a plurality of cylinders respectively disposed on the left and right sides of the V-shaped cylinder block, and an inter-cylinder diaphragm disposed between adjacent cylinders on the same side; the V-shaped cylinder block is provided with a camshaft mounting hole, a cam The front end opening of the shaft mounting hole is located at a center position of the joint surface of the flywheel housing, and the rear end opening of the cam shaft mounting hole is located at a center position of the joint surface of the gear chamber; the V-shaped cylinder block is further provided with a water inlet chamber and a water outlet chamber, The inlet water flow chamber is located directly above the camshaft mounting hole, and the water outlet chamber is located on both sides above the water flow chamber. The direction of the inlet water flow chamber and the outlet water chamber is parallel to the direction of the cam shaft mounting hole, and the inlet and outlet of the inlet water flow chamber The outlet of the cavity is located on the gear chamber joint surface; the lower part of the body is a crankcase, the crankcase is provided with a crankshaft mounting hole and a plurality of main bearing seats for supporting the crankshaft; and the flywheel There are five first front reinforcing ribs arranged symmetrically on both sides of the outer periphery of the joint surface, and a plurality of second front reinforcing ribs are arranged in the joint surface of the flywheel shell, and one end of the second front reinforcing rib and the front end of the cam shaft mounting hole are open The other end of the second front rib is connected with the mounting hole on the joint surface of the flywheel housing; the two sides of the outer periphery of the joint surface of the gear chamber are respectively provided with five first rear reinforcing ribs arranged symmetrically, and the gear chamber joint surface a plurality of second rear reinforcing ribs are arranged therein, and one end of the second rear reinforcing rib and a rear end of the cam shaft mounting hole The edges of the openings are connected, and the other end of the second rear ribs is connected to the mounting hole on the joint surface of the gear chamber. As a further improvement of the present invention, the left side wall and the right side wall of the V-shaped cylinder block are respectively provided with A-shaped positive and negative connecting reinforcing ribs, and the left side wall and the right side wall of the crankcase are respectively provided with a vertical rib, the vertical rib is disposed at a position corresponding to the main bearing seat and the inter-cylinder diaphragm, and the upper end of the vertical rib is connected with the lower bent portion of the A-shaped positive and negative connecting rib, and the lower end of the vertical rib Extend to the position of the main bearing cap side pressure bolt hole.

As a further improvement of the present invention, a plurality of reinforcing rib sets are disposed in the V-shaped corner space of the top of the body, and the plurality of reinforcing rib sets are sequentially arranged, and each reinforcing rib group includes six straight reinforcing ribs and one Ring-shaped ribs, six straight ribs are arranged on the periphery of the annular ribs and are distributed in a square shape. One end of the straight ribs is connected with the annular ribs, and the other end of the straight ribs is connected to the left and right sides of the V-shaped cylinder block. On the outer wall of the cavity.

As a further improvement of the present invention, the inlet moisture chamber on the V-shaped cylinder block is provided with a split rib, and the split rib divides the inlet moisture chamber into three quadrilateral inlet passages and a heart-shaped inlet flow. Road.

As a further improvement of the present invention, the cylindrical diaphragm in the crankcase is provided with two cylindrical reinforcing ribs, one end of the cylindrical reinforcing rib is connected to the lower end surface of the cylinder, and the other end of the cylindrical reinforcing rib is connected to the main bearing seat, the cylinder The centerline of the rib is parallel to the cylinder centerline.

As a further improvement of the present invention, the inner wall of the left and right sides of the crankcase is provided with an inner reinforcing rib, and the inner reinforcing rib is connected to the outer side of the main bearing seat on the same side via the inner wall of the crankcase, and the center line of the inner reinforcing rib It is on the same line as the center of the crankshaft mounting hole.

Compared with the prior art, the invention has the advantages that:

The invention has the advantages of simple structure, compactness and reasonableness, and a plurality of reinforcing ribs are added on the front end surface, the rear end surface, the left and right side walls, the top portion and the inner portion of the body, and the engine can meet the design requirements of the oil passage and the water channel, It controls the strength of the body well, reduces the vibration of the external parts when the machine works with the engine, and provides convenience for the other parts of the whole machine.

DRAWINGS

Fig. 1 is a perspective view showing the structure of a multi-cylinder V-type diesel engine body according to the present invention.

Figure 2 is a front elevational view of the multi-cylinder V-type diesel engine body of the present invention.

Figure 3 is a rear elevational view of the multi-cylinder V-type diesel engine body of the present invention.

Figure 4 is a left side elevational view of the multi-cylinder V-type diesel engine body of the present invention.

Figure 5 is a right side view of the multi-cylinder V-type diesel engine body of the present invention.

Figure 6 is a plan view of the multi-cylinder V-type diesel engine body of the present invention. Figure 7 is a cross-sectional view taken along line AA of Figure 6.

Figure 8 is a cross-sectional view taken along line B-B of Figure 6.

Figure 9 is a cross-sectional view taken along line C-C of Figure 7.

Figure 10 is a cross-sectional view taken along line D-D of Figure 8.

DESCRIPTION OF REFERENCE NUMERALS: 1 front end face, la-flywheel shell joint face, lb-first front rib, lc - second front rib, 2 - rear end face, 2a - gear chamber joint face, 2b - first rear Reinforcing ribs, 2c, second rear reinforcing ribs, 3 - left side wall, 3a - A type positive and negative connecting ribs, 3b - vertical ribs, 3c - main bearing cover side pressing bolt holes, 4 - right side wall, 4a — A-shaped positive and negative connected ribs, 4b—vertical ribs, 4c—one main bearing cover side pressure bolt holes, 5—top, 5a—straight ribs, 5b—annular ribs, 6-V cylinder block, 7—Crankcase, 8-camshaft mounting hole, 9-crankshaft mounting hole, 10-cylinder, 11-inlet water flow chamber, l la-split rib, l ib-quadrilateral inlet runner, 11c-heart-shaped inlet runner , 12—water outlet cavity, 13-cylinder diaphragm, 14 main bearing seat, 15-inner rib, 16—cylindrical rib, 17-cylinder lower end, 18-cylinder center line, 19-cylinder sleeve, 20—Cylinder specific implementation

The invention will now be further described with reference to the specific drawings and embodiments.

As shown in the figure, in the embodiment, the front end surface 1 of the machine body is provided with a flywheel shell joint surface la, and the rear end surface 2 of the machine body is provided with a gear chamber joint surface 2a; the upper part of the machine body is a V-shaped cylinder block 6, V type A plurality of cylinders 10 are respectively disposed on the left and right sides of the cylinder block 6, and an inter-cylinder diaphragm 13 is disposed between adjacent cylinders 10 on the same side; the V-shaped cylinder block 6 is provided with a camshaft mounting hole 8 and a cam. The front end opening of the shaft mounting hole 8 is located at a center position of the flywheel housing joint surface la, and the rear end opening of the cam shaft mounting hole 8 is located at a center position of the gear chamber joint surface 2a; the V-shaped cylinder block 6 is further provided with a moisture flow chamber 11 And the water outlet chamber 12, the inlet moisture flow chamber 11 is located directly above the cam shaft mounting hole 8, and the water outlet chamber 12 is located on both sides above the moisture flow chamber 11, and the direction of the inlet moisture chamber 11 and the outlet chamber 12 is parallel to the cam shaft. The orientation of the mounting hole 8, the inlet of the inlet moisture chamber 11, and the outlet of the outlet chamber 12 are all located on the gear chamber joint surface 2a. During operation, the cooling water is diverted into the multi-cylinder V-shaped body cylinder liner 19 through the inlet water flow chamber 11. , where the cylinder head 20 needs to be cooled ; The lower portion of the body is a crankcase 7, a crankcase 7 and 9 equipped with a plurality of main bearing housing for supporting the crank axle mounting hole 14 of the crankshaft.

As shown in FIG. 1 and FIG. 2, five first front reinforcing ribs lb are symmetrically arranged on two sides of the outer periphery of the flywheel housing joint surface la, and a plurality of second front reinforcings are arranged in the flywheel shell joint surface la. The rib lc, one end of the second front reinforcing rib lc is connected to the edge of the front end opening of the cam shaft mounting hole 8, and the other end of the second front reinforcing rib lc is connected to the mounting hole on the coupling surface la of the flywheel housing. In the illustrated embodiment, the first front reinforcement The rib has a rib width of 10 mm, and the second front rib lc has a rib width of 15 mm.

As shown in FIG. 3, five first rear reinforcing ribs 2b are symmetrically arranged on both sides of the outer periphery of the gear chamber joint surface 2a, and a plurality of second rear reinforcing ribs 2c are disposed in the gear chamber joint surface 2a. The second rear reinforcing rib 2c is connected to the edge of the rear end opening of the cam shaft mounting hole 8, and the other end of the second rear reinforcing rib 2c is connected to the mounting hole on the gear chamber joint surface 2a. In the illustrated embodiment, the first rear reinforcing rib 2b has a rib width of 10 mm, and the second rear reinforcing rib 2c has a rib width of 15 mm.

As shown in FIG. 4 and FIG. 5, the left side wall 3 and the right side wall 4 of the V-shaped cylinder block 6 are respectively provided with A-shaped forward and reverse connecting ribs 3a, 4a, and the left side wall of the crankcase 7 is respectively provided. 3. The right side wall 4 is respectively provided with a plurality of vertical reinforcing ribs 3b, 4b, and the vertical reinforcing ribs 3b, 4b are disposed at positions corresponding to the main bearing housing 14 and the inter-cylinder diaphragm 13, the vertical reinforcing rib 3b The upper end of the 4b is connected to the lower bent portion of the reinforcing ribs 3a, 4a connected to the A-shaped positive and negative ends, and the lower ends of the vertical reinforcing ribs 3b, 4b are extended to the positions of the main bearing cover side pressing bolt holes 3c, 4c. In the illustrated embodiment, the A-shaped forward and reverse connecting ribs 3a, 4a have a rib width of 10 mm, and the vertical ribs 3b, 4b have a rib width of 30 mm.

As shown in FIG. 6 , a plurality of reinforcing rib sets are disposed in the V-shaped corner space of the top 5 of the body, and the plurality of reinforcing rib sets are sequentially arranged, and each reinforcing rib group is composed of six straight reinforcing ribs. 5a and a ring-shaped reinforcing rib 5b, six straight reinforcing ribs 5a are arranged on the periphery of the annular reinforcing rib 5b and distributed in a shape of a m-shaped, the straight reinforcing rib 5a-end is connected with the annular reinforcing rib 5b, and the straight reinforcing rib 5a The other end is connected to the outer wall of the water discharge chamber 12 on the left and right sides of the V-shaped cylinder block 6. In the illustrated embodiment, the straight reinforcing rib 5a has a rib width of 10 mm, and the annular reinforcing rib 5b has a rib width of 12 mm.

As shown in FIG. 7 and FIG. 8, the inlet moisture chamber 11 on the V-shaped cylinder block 6 is provided with a split rib 11a, and the split rib 11a divides the inlet moisture chamber 11 into three quadrilateral water inlets. Road lib and a heart-shaped water inlet channel l lc. In the illustrated embodiment, the shunt rib 11a has a rib width of 20 mm.

As shown in FIG. 7 and FIG. 9, the inter-cylinder diaphragm 13 in the crankcase 7 is provided with two cylindrical reinforcing ribs 16 which are connected to the lower end surface 17 of the cylinder, and the cylindrical reinforcing ribs. The other end is connected to the main bearing housing 14, and the center line of the cylindrical reinforcing rib 16 is parallel to the cylinder center line 18. In the illustrated embodiment, the cylindrical reinforcing rib 16 has a diameter of 03 mm.

As shown in FIG. 7 and FIG. 10, inner walls of the left and right sides of the crankcase 7 are provided with inner reinforcing ribs 15, which are connected to the outer side of the main bearing housing 14 on the same side via the inner wall of the crankcase 7. The center line of the inner rib 15 is on the same line as the center of the crankshaft mounting hole 9. In the illustrated embodiment, the inner rib 15 has a rib width of 15 mm.

Claims

claims

1. The body of a multi-cylinder V-type water-cooled diesel engine. The front end surface (1) of the body is provided with a flywheel housing joining surface (la), and the rear end surface (2) of the body is provided with a gear chamber joining surface (2a); The upper part of the body is a V-shaped cylinder block (6). A plurality of cylinders (10) are respectively provided on the left and right sides of the V-shaped cylinder block (6), and an inter-cylinder crossbar is provided between adjacent cylinders (10) on the same side. Partition plate (13); The V-shaped cylinder block (6) is provided with a camshaft mounting hole (8), and the front end opening of the camshaft mounting hole (8) is located at the center of the flywheel housing joint surface (la). The camshaft is installed The rear end opening of the hole (8) is located at the center of the gear chamber joint surface (2a); the V-shaped cylinder block (6) is also provided with an inlet water diversion chamber (11) and a water outlet chamber (12). The shunt cavity (11) is located directly above the camshaft mounting hole (8), and the water outlet cavity (12) is located on both sides above the inlet water shunt cavity (11). The directions of the inlet water shunt cavity (11) and the water outlet cavity (12) are parallel. Based on the direction of the camshaft mounting hole (8), the inlet of the water inlet diversion chamber (11) and the outlet of the water outlet chamber (12) are located on the gear chamber joint surface (2a); the lower part of the body is the crankcase (7), The crankcase (7) is provided with a crankshaft mounting hole (9) and a plurality of main bearing seats (14) for supporting the crankshaft; it is characterized in that: there are symmetrical bearings on both sides of the periphery of the flywheel housing joint surface (la) Five first front reinforcing ribs (lb) are arranged, and a plurality of second front reinforcing ribs (lc) are provided in the flywheel housing joint surface (la). One end of the second front reinforcing rib (lc) is connected to the camshaft mounting hole ( 8) The edges of the front opening are connected, and the other end of the second front reinforcing rib (lc) is connected to the mounting hole on the flywheel housing joint surface (la); there are symmetrical arrangements on both sides of the periphery of the gear chamber joint surface (2a) There are five first rear reinforcing ribs (2b), and a plurality of second rear reinforcing ribs (2c) are provided in the gear chamber joint surface (2a). One end of the second rear reinforcing rib (2c) is installed with the camshaft. The edge of the rear end opening of the hole (8) is connected to each other, and the other end of the second rear reinforcement rib (2c) is connected to the mounting hole on the gear chamber joint surface (2a).

2. The multi-cylinder V-shaped water-cooled diesel engine body according to claim 1, characterized in that: the left side wall (3) and the right side wall (4) of the V-shaped cylinder block (6) are respectively provided with A-shaped positive and negative connecting reinforcing ribs (3a, 4a), and a plurality of vertical reinforcing ribs (3b, 4b) are respectively provided on the left side wall (3) and right side wall (4) of the crankcase (7), so The vertical reinforcing ribs (3b, 4b) are arranged at positions corresponding to the main bearing seat (14) and the inter-cylinder transverse partition (13). The upper ends of the vertical reinforcing ribs (3b, 4b) are connected to the A-shaped positive and negative reinforcing ribs ( The lower bends of 3a, 4a) are connected, and the lower ends of the vertical reinforcements (3b, 4b) extend to the main bearing cap side pressure bolt holes (3c 4c).

3. The multi-cylinder V-shaped water-cooled diesel engine body according to claim 1, characterized in that: a plurality of reinforcing rib groups are provided in the V-shaped angular space at the top of the body (5), and the plurality of reinforcing rib groups Tendon The groups are arranged and connected in sequence. Each reinforcing rib group includes six straight reinforcing ribs (5a) and an annular reinforcing rib (5b). The six straight reinforcing ribs (5a) are arranged on the periphery of the annular reinforcing rib (5b) and are in the shape of Distributed in a rice shape, one end of the straight reinforcing rib (5a) is connected to the annular reinforcing rib (5b), and the other end of the straight reinforcing rib (5a) is connected to the outer wall of the left and right outlet chambers (12) of the V-shaped cylinder block (6) .

4. The multi-cylinder V-shaped water-cooled diesel engine body according to claim 1, characterized in that: the inlet water distribution chamber (11) on the V-shaped cylinder block (6) is provided with a distribution reinforcement rib (l la ), the shunt reinforcement rib (11a) divides the inlet water shunt cavity (11) into three quadrangular inlet channels (lib) and a heart-shaped inlet channel (l lc).

5. The multi-cylinder V-type water-cooled diesel engine body according to claim 1, characterized in that: the inter-cylinder diaphragm (13) in the crankcase (7) is provided with two cylindrical reinforcing ribs ( 16), one end of the cylindrical reinforcing rib (16) is connected to the lower end face of the cylinder (17), the other end of the cylindrical reinforcing rib (16) is connected to the main bearing seat (14), and the center line of the cylindrical reinforcing rib (16) is parallel to the cylinder Centerline (18).

6. The body of a multi-cylinder V-shaped water-cooled diesel engine as claimed in claim 1, characterized in that: inner reinforcing ribs (15) are provided on the inner walls of the left and right sides of the crankcase (7), and the inner reinforcing ribs (15) is connected to the outer position of the main bearing seat (14) on the same side through the inner wall of the crankcase (7). The center line of the inner reinforcing rib (15) is on the same straight line as the center of the crankshaft mounting hole (9).