CN206801716U - Cylinder block reinforcing plate - Google Patents

Abstract

The utility model discloses a cylinder body reinforcement plate, which comprises a reinforcement plate body which can be installed on the bottom surface of the cylinder body, the edge of the reinforcement plate body is adapted to the shape of the bottom surface of the skirt part of the cylinder body, and the reinforcement plate body is connected There are positioning flanges positioned and installed on the bottom surface of the cylinder body protruding from the periphery of the end face. On the two positioning flanges, there are many pairs of connecting straps that are arranged symmetrically along the long axis of the reinforcing plate body and evenly spaced. The connecting straps are provided with mounting holes that can be connected to the bottom surface of the cylinder block, and the reinforcing plates between two adjacent pairs of the connecting straps are provided with crankshaft structures that can be connected to the cylinder block. Compatible escape holes. The utility model has reasonable structural design, convenient manufacture and easy finishing, is suitable for mass production, helps to improve the rigidity of the cylinder body, and is suitable for wide-scale popularization and application.

Description

Cylinder block reinforcement plate

technical field

The utility model relates to the field of engines, in particular to a cylinder block reinforcing plate.

Background technique

There are generally three types of in-line engine cylinder blocks: bisect type, tunnel type, and gantry type. The crankshaft axis of the bisected cylinder block is on the same plane as the lower surface of the cylinder block. It is generally used together with the frame type crankcase, and the overall rigidity is better. However, the number of parts is large, the weight is large, and the cost is high. The tunnel-type cylinder block is equivalent to the bisected cylinder block + crankcase integrated into one casting, so its rigidity is better than that of the bisected type, but its casting, processing, and assembly processes are complicated, and engines with this structure are rarely seen now. The gantry-type cylinder block moves the lower surface of the cylinder block below the crankshaft axis, and forms a deep skirt on both sides. The deep skirt makes the sides of the cylinder block relatively less rigid, but it is widely used because of its beautiful shape and simple structure. . As the people's requirements for vehicle vibration, noise, and comfort are greatly improved, and the engine pursues high explosion pressure and high power, the rigidity of the gantry cylinder block needs to be strengthened.

Installing a flat steel plate at the bottom of the cylinder block is low in cost and has a little strengthening effect on the lateral deformation of the body skirt, but it has little effect on high-density power engines. The cast aluminum cylinder block reinforcement plate can be molded into complex shapes, designed with higher ribs, and lighter in weight, but it has high requirements on the manufacturing process, and is only suitable for the layout of small diesel engines. It is not suitable for medium and heavy engines. The range is narrow.

Utility model content

The technical problem to be solved by the utility model is aimed at the above-mentioned shortcomings of the prior art. The utility model provides a cylinder block reinforcement plate with small volume, light weight and high strength.

In order to achieve the above purpose, the utility model provides a cylinder block reinforcement plate, including a reinforcement plate body that can be installed on the bottom surface of the cylinder block, the edge of the reinforcement plate body is adapted to the shape of the bottom surface of the cylinder body skirt, so that The surroundings of the connecting end face of the reinforcing plate protrude to be provided with positioning flanges positioned and installed on the bottom surface of the cylinder body, and on the two positioning flanges, there are many pairs of symmetrically arranged and evenly arranged along the long axis of the reinforcing plate body. The connection straps distributed at intervals are provided with mounting holes that can be connected to the bottom surface of the cylinder body, and the reinforcing plates between two adjacent pairs of the connection straps are provided with mounting holes that can be connected with the bottom surface of the cylinder block. The escape hole adapted to the crankshaft structure of the cylinder block.

Further, at least two mounting holes that can be connected to the bottom surface of the cylinder block are provided on each of the connecting straps.

Furthermore, the positioning flange is provided with a triangular first connection strap, one of the pointed ends of the first connection strap extends to the inside of the positioning flange, and correspondingly, the first connection strap Three mounting holes are arranged on the connecting strap.

Furthermore, both ends of the reinforcing plate are provided with chamfering structures adapted to the structure of the bottom surface of the cylinder block, and the two ends of the reinforcing plate are provided with obliquely arranged second connection straps, that is, the One end of the second connecting strap extends toward the inside of the positioning flange, and correspondingly, two ends of the second connecting strap are respectively provided with mounting holes.

Furthermore, an oil hole is provided in the area surrounded by the three mounting holes on the triangularly arranged connecting straps.

Furthermore, the side surfaces of the first and second connection straps are provided with an inwardly recessed arc structure, and the arc structure is arranged on the side surface between two adjacent mounting holes.

As a further improvement, the reinforcing plate body is provided with vertical plates respectively connecting the two opposite connecting straps.

As a further improvement, the two sides of the reinforcing plate body are provided with wave concave surfaces that can adapt to the structure of the bottom surface of the cylinder block.

As a further improvement, the avoidance hole is a waist-shaped hole with semicircular holes on both sides.

Beneficial effect

Compared with the prior art, the utility model has the following advantages: the structural design of the cylinder block reinforcement plate is reasonable, and the surrounding edges of the reinforcement plate body can be closely attached to the bottom surface structure of the cylinder body skirt, thereby effectively strengthening the cylinder body. The support enhances the overall rigidity of the cylinder block and ensures the stable operation of the engine; the structure of the reinforcement plate is convenient for positioning and fits tightly, which increases the high-pressure resistance of the reinforcement plate and increases the support surface for the cylinder block, which helps to improve the cylinder block. Rigidity; the entire reinforcement plate structure is small in size, light in weight and high in strength, which helps to increase the cooling rate of the cylinder block; Widespread promotion and application.

Description of drawings

Fig. 1 is the assembled front view of the cylinder block reinforcing plate of the present utility model;

Fig. 2 is a schematic cross-sectional view of the assembly left view of the cylinder block reinforcement plate of the present invention;

Fig. 3 is a structural front view of the cylinder block reinforcement plate of the present invention;

Fig. 4 is the structural sectional view of C-C direction in Fig. 3;

Fig. 5 is a structural perspective view of the cylinder block reinforcement plate of the present invention.

In the figure: 1. Reinforcement plate body; 2. Positioning flange; 3. Connection strap; 4. Avoidance hole; 5. Installation hole; 6. Arc structure; 7. Wave concave surface; 8. Oil hole; 9. Vertical plate; 10. Cylinder block; 11. Bearing seat structure; 12. Bolt assembly.

detailed description

The specific embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present utility model is not limited by the specific embodiments.

The embodiment of the present utility model is as follows: as shown in Fig. 1-5, a kind of cylinder block reinforcement plate, comprises the reinforcement plate body 1 that can be installed on the bottom surface of cylinder block 10, and the edge of reinforcement plate body 1 and cylinder body 10 skirts Adapt to the shape of the bottom surface of the upper part, the surrounding of the connecting end surface of the reinforcing plate body 1 protrudes and is provided with a positioning flange 2 positioned and installed on the bottom surface of the cylinder block 10, which is closely attached to the motion envelope of the crankshaft and connecting rod. The flange 2 is provided with a plurality of pairs of connection straps 3 symmetrically arranged along the long axis of the reinforcement plate body 1 and evenly spaced. Each connection strap 3 is provided with a mounting hole 5 that can be connected to the bottom surface of the cylinder block 10. The bolt assembly 12 firmly connects the reinforcement plate body 1 to the bottom surface of the skirt of the cylinder block 10, supports the skirt of the cylinder block 10, and prevents the cylinder block 10 from inwardly sinking under high pressure due to the hollowed out skirt. twisting and other deformation conditions; the surrounding edges of the reinforced plate body 1 can be closely attached to the bottom surface structure of the skirt of the cylinder block 10, thereby effectively supporting the cylinder block 10, enhancing the overall rigidity of the cylinder block 10, and effectively preventing the cylinder block 10 from occurring. Local deformation ensures the stable operation of the engine, which can greatly reduce the noise during engine operation, suppress the vibration of the engine to a certain extent, and improve the comfort of the vehicle; the positioning flange 2 around the reinforcement plate 1 ensures that the reinforcement plate 1 and the cylinder The bottom surface of the body 10 is accurately positioned and closely fitted, the finishing of the connecting end surface of the positioning flange 2 is convenient, the accuracy of the end surface is easily guaranteed, the processing cost is reduced and time is saved, and the setting of the positioning flange 2 can reinforce the reinforcing plate body 1 , to increase the high pressure resistance of the reinforced plate body 1, the outer surface of the positioning flange 2 can be closely matched with the bottom surface structure of the cylinder block 10, which increases the support surface for the cylinder block 10, and helps to improve the cylinder block 10. Rigidity; the positioning flange 2 can increase the internal space of the cylinder block 10 so that the reinforcing plate body 1 avoids the bearing seat structure 11 . On the reinforcing plate body 1 between two adjacent pairs of connecting bridges 3, there are avoidance holes 4 that can adapt to the crankshaft structure of the cylinder block 10, so that during the rotation of the crankshaft, the piston connecting rod structure can pass through. The avoidance hole 4 does not interfere with the reinforcement plate body 1. The setting of the avoidance hole 4 can reduce the protrusion height of the positioning flange 2, reduce the volume and weight of the entire reinforcement plate structure, and reduce weight. At the same time, it can prevent stress concentration and improve reinforcement. The strength of the plate structure; the entire reinforced plate structure is an integrated manufacturing structure, which is convenient to manufacture and easy to finish, and is suitable for mass production. The reinforced plate body 1 can be designed according to the model size of the engine, which is suitable for wide-scale promotion and application.

In this embodiment, each connecting strap 3 is provided with at least two mounting holes 5 that can be connected to the bottom surface of the cylinder block 10, and each connecting strap 3 is connected to the cylinder block 10 through two bolt assemblies, and the connection is firm and Reliable and not easy to loosen, it can also be tightly connected with the cylinder block 10 when one of the bolt components falls, effectively preventing the reinforcement plate body 1 from loosening and colliding with the crankshaft structure, and ensuring the safe operation of the engine.

In this embodiment, the positioning flange 2 is provided with a triangular first connection strap 3, one of the sharp ends of the first connection strap 3 extends to the inside of the positioning flange 2, correspondingly, the first Three mounting holes 5 are provided on the connecting strap 3 . The connecting strap 3 extends inward and narrows on the positioning flange 2, so that the three installation holes 5 are arranged in a triangle, which not only makes full use of the installation space of the end surface of the connecting strap 3, but also can be more firmly connected with the cylinder block 10, The use of the reinforced plate structure is more stable and reliable; the two ends of the reinforced plate body 1 are provided with a chamfer structure suitable for the bottom surface structure of the cylinder body 10 to prevent stress concentration from causing the reinforced plate body 1 to break. The end is provided with a second connection strap 3 which is arranged obliquely, that is, one end of the second connection strap 3 extends to the inside of the positioning flange 2, so that the second connection strap 3 is more closely matched with the cylinder body cavity structure of the engine. Correspondingly, mounting holes 5 are respectively provided at both ends of the second connecting strap 3, and are connected to the cylinder block 10 through two obliquely arranged mounting holes 5, so that the two ends of the reinforcing plate body 1 are more firmly fixed.

In this embodiment, an oil hole 8 is provided in the area surrounded by the three mounting holes 5 on the connecting strap 3 arranged in a triangle, and the machine oil flows through the oil hole 8, so that the reinforcing plate body 1 can be strengthened. Cooling can increase the service life of the reinforcing plate structure, and can also speed up the flow rate of the oil in the cylinder block 1 and improve the cooling rate; moreover, setting the oil hole 8 can reduce the weight of the reinforcing plate structure, which has a good effect on weight reduction, and the structure The effect of undiminished rigidity plays a very good role in the optimization of engine vibration, noise and comfort. It can also save materials, facilitate transportation and improve economic benefits.

In the present embodiment, the first and second connection straps 3 are provided with an inwardly recessed circular arc structure 6 on the sides, and the circular arc structure 6 is arranged on the side surface between two adjacent mounting holes 5. The arc structure 6 can reduce stress concentration, improve the quality of the reinforced plate structure, reduce weight, facilitate casting and demolding, and help improve production efficiency.

In the present embodiment, the reinforcing plate body 1 is provided with a vertical plate 9 respectively connected to each of the two opposite connection straps 3, and the vertical plate 9 is arranged on the plate surface between the two avoidance holes 4, and the horizontal reinforcing vertical plate 9. Reinforce the plate body 1 to effectively reduce the lateral deformation of the body and prevent the narrow plate surface between the two avoidance holes 4 from breaking; it can also support two facing connecting straps 3 to prevent the connecting straps 3 from being under pressure height and deformation, the vertical plate 9 is supported at the narrowing place of the two connection bridges 3, the supporting effect is good, and the force is even.

In this embodiment, the two sides of the reinforcing plate body 1 are provided with a wave concave surface 7 that can adapt to the structure of the bottom surface of the cylinder block 10. The wave concave surface 7 and the cylinder block 10 are smooth and conflicted, so as to protect the cylinder block 10 from damage and play a role in longitudinal direction. The strengthening function, through the frame structure, the arrangement of transverse ribs between the two cylinders, and the design of the longitudinal wave concave surface 7, effectively suppresses the horizontal and vertical distortion of the cylinder block 1, facilitates demoulding during manufacturing, and ensures that the entire reinforcement plate structure can be One-piece casting facilitates mass production of reinforced plate structures and improves production efficiency.

In this embodiment, the avoidance hole 4 is a waist-shaped hole with semicircular holes on both sides. The waist-shaped hole structure can facilitate setting the largest possible avoidance hole 4 on the surface of the reinforcement plate body 1, reducing the reinforcement plate structure. The weight of the whole vehicle can be reduced, the cost can be reduced, and the flow rate of the engine oil can be increased, so that the lubrication and cooling effect of the cylinder block 1 is better; while the inner arc surface of the avoidance hole 4 can effectively reduce the stress concentration, so that the reinforced plate body 1 is more resistant to pressure.

The above are only preferred embodiments of the present utility model, and it should be pointed out that for those skilled in the art, under the premise of not departing from the structure of the present utility model, some deformations and improvements can also be made, and these will not affect the implementation of the utility model effect and utility of the patent.

Claims (9)

1. a kind of cylinder block reinforcing plate, including it is mountable to the reinforcement plate body (1) of cylinder block (10) bottom surface, it is characterised in that institute The bottom shape for stating the edge and the cylinder block (10) skirt section of strengthening plate body (1) is adapted, described reinforcement plate body (1) connection end The surrounding protrusion in face is provided with the locating flange (2) with cylinder block (10) bottom surface location and installation, positioned at the locating flange described in two (2) the multipair connection lug (3) that simultaneously uniform intervals distribution is symmetrical arranged along described reinforcement plate body (1) long axis direction, institute are provided with The each connection lug (3) stated is provided with the mounting hole (5) that can be connected with cylinder block (10) bottom surface, positioned at two pairs of adjacent institutes State the avoid holes that is equipped with and can be adapted with the crankshaft structure of cylinder block (10) on the reinforcement plate body (1) between connection lug (3) (4)。

2. cylinder block reinforcing plate according to claim 1, it is characterised in that described each connection lug (3) is provided with At least two mounting holes (5) that can be connected with cylinder block (10) bottom surface.

3. cylinder block reinforcing plate according to claim 2, it is characterised in that it is in triangle that the locating flange (2), which is provided with, The first connection lug (3) that shape is set, one of closed angle end of the first connection lug (3) is to the interior of locating flange (2) Side extends, and accordingly, the described first connection lug (3) is provided with three mounting holes (5).

4. cylinder block reinforcing plate according to claim 3, it is characterised in that it is described strengthen plate body (1) both ends be provided with The adaptable chamfering structure of cylinder block (10) bottom surface structure, it is being provided with what is be obliquely installed positioned at described reinforcement plate body (1) both ends Second connection lug (3), i.e., wherein one end of described second connection lug (3) extends to the inner side of locating flange (2), corresponding , it is being respectively equipped with mounting hole (5) positioned at the both ends of the described second connection lug (3).

5. cylinder block reinforcing plate according to claim 3, it is characterised in that in the connection lug of the setting triangular in shape (3) oil-through hole (8) is provided with mounting hole (5) area encompassed described in three on.

6. cylinder block reinforcing plate according to claim 4, it is characterised in that described first, second connection lug (3) side On be equipped with the arc structure (6) to cave inward, the arc structure (6) is arranged on the side between two neighboring mounting hole (5) On face.

7. according to the cylinder block reinforcing plate described in claim 1-6 any one, it is characterised in that described reinforcement plate body (1) it is provided with the riser (9) for connecting the connection lug (3) of often relative two respectively.

8. cylinder block reinforcing plate according to claim 7, it is characterised in that set on described reinforcement plate body (1) two sides There is the wave concave surface (7) that can be adapted with cylinder block (10) bottom surface structure.

9. cylinder block reinforcing plate according to claim 7, it is characterised in that described avoid holes (4) are that both sides are in semicircle Poroid mounting hole.