Diesel engine block and special processing equipment

By designing fluid guiding components and guide strips, and combining them with the machining of milling cavity components, the problem of uneven coolant flow inside the diesel engine was solved, improving heat dissipation efficiency and machining convenience.

CN117005940BActive Publication Date: 2026-06-09ZHEJIANG DONGXIN POWER CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG DONGXIN POWER CO LTD
Filing Date
2023-08-09
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Uneven flow of coolant within the diesel engine leads to poor heat dissipation, with the side furthest from the coolant inlet exhibiting poor heat dissipation. Insufficient coolant replenishment also results in uneven heat dissipation in certain areas.

Method used

The design incorporates a liquid guiding component and a flow guide strip. The liquid guiding component is equipped with a liquid guiding plate and a connector, while the flow guide strip has a drain hole. The cross-section of the liquid guiding plate is wavy, and the drain hole has a special angle. The liquid guiding plate and drain hole are machined in conjunction with the milling cavity assembly to improve the uniformity of coolant flow and heat dissipation efficiency.

Benefits of technology

It improves the utilization efficiency of coolant, prevents coolant from overflowing rapidly, increases the heat dissipation area, simplifies the processing steps, and improves the heat dissipation efficiency and processing convenience of the diesel engine block.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to engine body and processing equipment technical field, specifically relates to diesel engine body and special processing equipment, including cylinder block, the cylinder block is composed of shell and sealing cover, the cylinder block is equipped with the liquid guide for separating multiple cylinders, the liquid guide is equipped with the liquid guide piece and the flow guide strip, the flow guide strip is equipped with the liquid outlet hole towards the bottom end face of the shell, the shell is separated into multiple grooves with the cylinder as the center by the liquid guide, the cooling liquid is filled in the shell from the bottom end face of the shell in sequence with the flow guide strip, the special angle setting of the liquid outlet hole can quickly replace the cooling liquid at the bottom, the cooling liquid replacement at the bottom is effectively prevented from being insufficient, the cylinder heat dissipation efficiency is improved, the liquid guide piece with the cross section in the wave shape can prevent the cooling liquid from overflowing the shell quickly, the liquid guide piece with the cross section in the wave shape can increase the heat dissipation area, increase the contact with the cooling liquid, and improve the heat dissipation efficiency, and the processing steps are simplified without frequent tool replacement and cylinder rotation.
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Description

Technical Field

[0001] This invention relates to the technical field of engine blocks and processing equipment, specifically to diesel engine blocks and specialized processing equipment. Background Technology

[0002] The engine block is the skeleton of the engine, used to install and support the various engine assembly components. It consists of the cylinder block, crankcase, oil pan, cylinder liners, and cylinder head gasket.

[0003] The high temperatures of high-powered diesel engines can lead to heat conduction within the engine block, potentially affecting its stability and lifespan. Therefore, diesel engine blocks require heat dissipation and cooling measures to maintain them within an appropriate temperature range. Currently, this is primarily achieved by circulating coolant into the cylinder block.

[0004] In current engine operation, coolant enters the engine block cavity from one side until it is full, then flows into the engine cover and other parts of the block. The coolant then circulates, flowing from one side to the other after entering the cavity. During this flow, the coolant heats up, resulting in poor heat dissipation for cylinders on the side furthest from the inlet, leading to temperature differences within the engine block. Furthermore, when the engine block is full of coolant, newly entering coolant may be directly discharged from the drain hole above that point, preventing timely replenishment of coolant in areas far from the inlet and causing uneven heat dissipation in certain areas. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the prior art, the present invention provides a diesel engine block and special processing equipment, which can effectively solve the problem of uneven coolant flow in the engine block, resulting in poor heat dissipation.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] This invention provides a diesel engine block, comprising:

[0008] A cylinder body is used to install cylinders and assist in cylinder heat dissipation. The cylinder body consists of an outer shell and a sealing cover, and the outer shell has a cavity. The cylinder body is provided with a liquid guiding component for separating multiple cylinders. The liquid guiding component is provided with a liquid guiding plate and a connecting component. There are two sets of liquid guiding plates, which are respectively connected to the connecting components. The cross-section of the liquid guiding plate is wavy, and the groove on the liquid guiding plate is at 45° to the horizontal plane.

[0009] In addition, guide strips for introducing coolant and directing it into different cavities, the guide strips having drain holes facing the bottom end face of the housing.

[0010] Furthermore, the guide strip is provided in two sets and is located inside the outer shell and connected to the liquid guiding plate. One side of the guide strip is provided with a liquid inlet hole that communicates with the outside. The drain hole is provided in multiple sets and is distributed at equal intervals on the guide strip. The drain hole is located on the side where the two sets of guide strips are close to each other.

[0011] A specialized machining equipment for diesel engine blocks, used to machine the aforementioned diesel engine blocks, includes a machining base that can move in multiple dimensions and a milling cavity assembly mounted on the machining base for machining drain holes and guide plates. The milling cavity assembly includes a fixed sleeve and a rotating shaft rotatably mounted on the fixed sleeve. A first bevel gear is provided at the bottom end of the rotating shaft, and a second bevel gear is provided on the fixed sleeve that meshes with the first bevel gear. A milling cutter extending out of the fixed sleeve is slidably mounted on the second bevel gear, and a push block for pushing the milling cutter is movably mounted on the fixed sleeve.

[0012] Furthermore, the first bevel gear is parallel to the horizontal plane, and the angle between the second bevel gear and the first bevel gear is greater than 90°. The angle between the milling cutter axis and the guide bar axis is α, and the angle α is greater than 0°.

[0013] Furthermore, the bevel gear two is provided with a limiting block one, and the milling cutter is slidably connected to the limiting block one. The side of the milling cutter near the push block is provided with a magnetic ring and a ball, and the ball is located at the center of the magnetic ring.

[0014] Furthermore, the main view projection of the push block is a right-angled trapezoid, and a magnetic block is provided on the side of the push block near the milling cutter. The push block is provided with a limiting block two for limiting the distance of the push block sliding out of the fixed sleeve.

[0015] Furthermore, a fan is provided on the rotating shaft, and the fan is located inside the fixed sleeve, and the fixed sleeve is provided with a vent hole.

[0016] Furthermore, the machining base includes a machining arm and a drive shaft rotatably mounted on the machining arm. The machining arm housing is equipped with a mounting sleeve that connects to the fixing sleeve, and the mounting sleeve is provided with a locking element that restricts the rotation of the fixing sleeve. Beneficial effects

[0017] The technical solution provided by this invention has the following advantages compared with known public technologies:

[0018] 1. The housing is divided into multiple slots centered on the cylinder by the liquid guiding component. With the help of the guide strip, the coolant is filled from the bottom of the housing and fills the housing in sequence. When the coolant enters, the special angle of the drain hole can quickly replace the coolant at the bottom, effectively preventing insufficient replacement of the coolant at the bottom and improving the cylinder heat dissipation efficiency.

[0019] Second, the corrugated cross-section of the liquid guide plate with its surface groove at a 45-degree angle to the horizontal plane can prevent the coolant from overflowing the casing quickly. The corrugated cross-section of the liquid guide plate can also increase the heat dissipation area, increase the contact with the coolant, and improve the heat dissipation efficiency.

[0020] Third, the milling cavity assembly driven by the machining arm can process the drainage holes and guide plates on the guide strip. This eliminates the need for frequent changes of milling tools and rotation of the cylinder body for machining, and also eliminates the need for multiple rotations of the cylinder body and changes to the reference surface, simplifying the machining process and making it more convenient. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of the diesel engine body of the present invention;

[0023] Figure 2 This is a partial cross-sectional view of the diesel engine block of the present invention;

[0024] Figure 3 This is a schematic diagram of the liquid guiding component of the present invention;

[0025] Figure 4 This is a front view of the liquid guiding component of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the special processing equipment for the diesel engine block of the present invention;

[0027] Figure 6 This is a partial cross-sectional view of the milling cavity assembly of the present invention;

[0028] Figure 7 This is a schematic diagram showing the positions of the milling cutter and the fixed sleeve when the push block of the present invention descends to its limit position;

[0029] Figure 8 This is an exploded view of the milling cutter installation of the present invention;

[0030] Figure 9 This is a side view of the milling cutter used in this invention to machine the drain hole;

[0031] Figure 10 This is a schematic diagram of the flow of coolant within the machine body cavity according to the present invention;

[0032] Figure 11 This is a schematic diagram illustrating the flow of coolant in a conventional machine body.

[0033] Reference numerals: 1. Cylinder body; 11. Outer shell; 12. Sealing cover; 13. Guide bar; 131. Liquid inlet; 132. Liquid outlet; 14. Liquid guide component; 141. Connecting component; 142. Liquid guide plate; 2. Machining base; 21. Machining arm; 22. Drive shaft; 23. Milling cavity assembly; 231. Fixing sleeve; 2311. Vent hole; 232. Rotating shaft; 2321. Fan; 233. Bevel gear one; 234. Bevel gear two; 2341. Limiting block one; 235. Milling cutter; 2351. Magnetic ring; 2352. Ball bearing; 236. Push block; 2361. Magnetic block; 2362. Limiting block two; 24. Mounting sleeve; 241. Locking component. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0035] The present invention will be further described below with reference to embodiments. Example

[0036] Diesel engine block, see attached document. Figure 1-4 ,include:

[0037] Cylinder body 1, used to mount cylinders and assist in cylinder heat dissipation, consists of outer shell 11 and sealing cover 12. The outer shell 11 has an internal cavity for coolant flow, thereby removing heat from the cylinder walls. The cylinder body 1 is equipped with a coolant guide 14 for separating multiple cylinders. The coolant guide 14 has coolant guide plates 142, which guide coolant from bottom to top to fill the cavity inside the outer shell 11. The coolant guide 14 has a connector 141. Two sets of coolant guide plates 142 are connected to the connector 141 respectively. 141 is connected to the inner wall of the outer shell 11 and integrated with it. The connector 141 is attached to the cylinder wall inside the outer shell 11. Together with the liquid guide plates 142 on both sides, the outer shell 11 is divided into multiple cooling chambers centered on the cylinder, which strengthens the strength of the outer shell 11 and increases the strength against collision deformation. The cross section of the liquid guide plate 142 is wavy, and the groove on the liquid guide plate 142 is at 45° with the horizontal plane. It is used to guide the coolant to slowly fill the cavity from bottom to top, so that the filled coolant can fully contact the inner wall, dissipate heat, and improve the utilization efficiency of the coolant.

[0038] In addition, there is a guide strip 13 for introducing coolant and guiding it into different cavities. The guide strip 13 is provided with a drain hole 132 facing the bottom end face of the outer shell 11. When the drain hole 132 introduces coolant, it first impacts the bottom end of the outer shell 11 to prevent the coolant from rushing out of the outer shell 11 quickly, thereby increasing the contact time between the coolant and the inner wall of the outer shell 11 and further improving the utilization efficiency of the coolant.

[0039] Specifically, the guide strip 13 is provided in two sets and is located inside the outer shell 11 and connected to the liquid guide plate 142. The guide strip 13 is provided with a liquid inlet hole 131 communicating with the outside on one side. The drain hole 132 is provided in multiple sets and is distributed at equal intervals on the guide strip 13. The drain hole 132 is located on the side where the two sets of guide strips 13 are close to each other.

[0040] In the above technical solution, the liquid guide 14 divides the interior of the outer shell 11 into multiple grooves centered on the cylinder. With the help of the guide strip 13, the coolant is filled from the bottom end face of the outer shell 11 and fills the outer shell 11 in sequence. When the coolant enters, the special angle setting of the drain hole 132 can quickly replace the coolant at the bottom, effectively preventing insufficient replacement of the coolant at the bottom and improving the cylinder heat dissipation efficiency. At the same time, the liquid guide plate 142 with a wavy cross section and a surface groove at a 45-degree angle to the horizontal plane can prevent the coolant from overflowing the outer shell 11 quickly. The wavy cross section of the liquid guide plate 142 can increase the heat dissipation area, increase the contact with the coolant, and improve the heat dissipation efficiency.

[0041] Specialized machining equipment for diesel engine blocks, used to machine the aforementioned diesel engine blocks, see attached document. Figure 5-11 The assembly includes a multi-dimensional movable machining base 2 and a milling cavity assembly 23 mounted on the machining base 2 for machining the drain hole 132 and the guide plate 142. The machining base 2 drives the milling cavity assembly 23 to machine the guide plate 142 and the drain hole 132 inside the outer shell 11. The milling cavity assembly 23 includes a fixed sleeve 231 and a rotating shaft 232 rotatably mounted on the fixed sleeve 231. The bottom end of the rotating shaft 232 is provided with a bevel gear 233. The fixed sleeve 231 is provided with a bevel gear 234 that meshes with the bevel gear 233. A milling cutter 235 extending out of the fixed sleeve 231 is slidably mounted on the bevel gear 234. A pusher block 236 for pushing the milling cutter 235 is movably mounted on the fixed sleeve 231. The rotation of the rotating shaft 232 drives the bevel gear 234, thereby driving the milling cutter 235 to perform machining. The descent of the fixed sleeve 231 pushes the pusher block 236, thereby squeezing out the milling cutter 235 and machining the drain hole 132.

[0042] Specifically, bevel gear 233 is parallel to the horizontal plane, and the angle between bevel gear 234 and bevel gear 233 is greater than 90°. The angle between the axis of the milling cutter 235 and the axis of the guide strip 13 is α, and the angle α is greater than 0°. By setting the angle between bevel gear 233 and bevel gear 234, when the milling cutter 235 drills, the drain hole 132 on the guide strip 13 faces the bottom end face of the housing 11, so that the coolant can be slowly filled into the cavity inside the housing 11 from the bottom of the housing 11. The coolant at the bottom can be continuously replaced to prevent the problem of slow heat dissipation caused by slow replacement of the coolant at the bottom.

[0043] Furthermore, the second bevel gear 234 is provided with a limiting block 2341, and the milling cutter 235 is slidably connected to the limiting block 2341. The second bevel gear 234 drives the milling cutter 235 to rotate through the limiting block 2341. At the same time, the milling cutter 235 can slide radially on the second bevel gear 234, which facilitates extension and retraction, thereby selecting to drill holes or mill grooves. The side of the milling cutter 235 near the push block 236 is provided with a magnetic ring 2351 and a ball 2352. The ball 2352 is located at the center of the magnetic ring 2351. The magnetic ring 2351 is used to cooperate with the magnetic block 2361 to make the milling cutter 235 retract into the fixed sleeve 231. The ball 2352 is used to reduce the friction between the milling cutter 235 and the push block 236 when the milling cutter 235 rotates.

[0044] The main view projection of the push block 236 is a right trapezoid, and a magnetic block 2361 is provided on the side of the push block 236 near the milling cutter 235 to facilitate pushing the milling cutter 235. The push block 236 is provided with a limiting block 2362 to limit the distance of the push block 236 sliding out of the fixed sleeve 231. The limiting block 2362 can limit the degree of retraction of the milling cutter 235, so that the milling cutter 235 cannot be completely retracted into the fixed sleeve 231 for processing the liquid guide plate 142.

[0045] In addition, a fan 2321 is provided on the rotating shaft 232, and the fan 2321 is located inside the fixed sleeve 231. The fixed sleeve 231 is provided with a vent hole 2311. The fan 2321 is used to rotate with the rotating shaft 232 and introduce external air into the fixed sleeve 231, thereby assisting in heat dissipation when machining slots.

[0046] In addition, the machining base 2 includes a machining arm 21 and a drive shaft 22 rotatably mounted on the machining arm 21. The drive shaft 22 is used to drive the rotating shaft 232 to rotate. The machining arm 21 housing is equipped with a mounting sleeve 24 that connects to the fixed sleeve 231. The mounting sleeve 24 is provided with a locking member 241 that restricts the rotation of the fixed sleeve 231. The fixed sleeve 231 and the mounting sleeve 24 are fixed by rotating the locking member 241.

[0047] In the above technical solution, the processing arm 21 moves and aligns the bottom of the push block 236 on the milling cavity assembly 23 with the bottom surface of the outer shell 11. Then, the drive shaft 22 starts, and the processing arm 21 moves simultaneously, causing the push block 236 to contact the outer shell 11. After being pressed, the push block 236 moves towards the inside of the fixed sleeve 231 and pushes the milling cutter 235 to slide on the bevel gear 234. The milling cutter 235 extends outward from the fixed sleeve 231 and drills a hole in the guide strip 13, thereby milling out the drain hole 132. When processing the guide plate 142, the movement of the processing arm 21 drives the milling cutter 235 on the milling cavity assembly 23 towards the guide plate 142, causing the milling cutter 235 to come into contact with the water... The plane is at a 45° angle. Then, the drive shaft 22 drives the milling cutter 235 to rotate, and the machining arm 21 drives the milling cutter 235 to translate. As the milling cutter 235 slowly approaches the liquid guide plate 142, the push block 236 descends to the limit position to restrict the milling cutter 235 from continuing to move. At this time, the groove on the liquid guide plate 142 is machined through the part of the milling cutter 235 that extends out of the fixed sleeve 231. The milling cavity assembly 23 driven by the machining arm 21 processes the drain hole 132 on the guide strip 13 and the liquid guide plate 142. It is not necessary to frequently change the milling cavity tool and rotate the cylinder body 1 to cooperate with the processing. It is not necessary to rotate the cylinder body 1 and change the reference surface multiple times, which simplifies the processing steps and makes it more convenient.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A special processing equipment for diesel engine blocks, the diesel engine block including a cylinder block (1) for mounting cylinders and assisting in cylinder heat dissipation, the cylinder block (1) being composed of a shell (11) and a sealing cover (12), and the shell (11) having a cavity inside, the cylinder block (1) being provided with a fluid guide (14) for separating multiple cylinders, the fluid guide (14) being provided with fluid guide plates (142), the fluid guide (14) being provided with a connector (141), the fluid guide plates (142) being in two sets and respectively connected to the connector (141), the cross section of the fluid guide plates (142) being wavy, and the fluid guide... The groove on the plate (142) is at a 45° angle to the horizontal plane; and, guide strips (13) for introducing coolant and guiding it into different cavities respectively, the guide strips (13) having drain holes (132) facing the bottom end face of the outer shell (11); the guide strips (13) are provided in two sets and located inside the outer shell (11) connected to the guide plate (142), and one side of the guide strips (13) has a liquid inlet hole (131) communicating with the outside, the drain holes (132) are provided in multiple sets and are equidistantly distributed on the guide strips (13), and the drain holes (132) are located on the side where the two sets of guide strips (13) are close to each other, characterized in that, The special processing equipment includes a processing base (2) that can move in multiple dimensions and a milling cavity assembly (23) mounted on the processing base (2) for processing drainage holes (132) and guide plates (142). The milling cavity assembly (23) includes a fixed sleeve (231) and a rotating shaft (232) rotatably mounted on the fixed sleeve (231). The bottom end of the rotating shaft (232) is provided with a bevel gear one (233), and the fixed sleeve (231) is provided with a bevel gear two (233) that meshes with the bevel gear one (233). 234), a milling cutter (235) extending from a fixed sleeve (231) is slidably mounted on the second bevel gear (234), and a push block (236) for pushing the milling cutter (235) to move is movably mounted on the fixed sleeve (231); the first bevel gear (233) is parallel to the horizontal plane, and the included angle between the second bevel gear (234) and the first bevel gear (233) is greater than 90°, and the included angle between the axis of the milling cutter (235) and the axis of the guide strip (13) is a, and the angle of a is greater than 0°.

2. The special processing equipment for diesel engine blocks according to claim 1, characterized in that, The bevel gear 2 (234) is provided with a limiting block 1 (2341), and the milling cutter (235) is slidably connected to the limiting block 1 (2341). The milling cutter (235) is provided with a magnetic ring (2351) and a ball (2352) on the side near the push block (236). The ball (2352) is located at the center of the magnetic ring (2351).

3. The special processing equipment for diesel engine blocks according to claim 2, characterized in that, The main view projection of the push block (236) is a right trapezoid, and a magnetic block (2361) is provided on the side of the push block (236) near the milling cutter (235). The push block (236) is provided with a limiting block two (2362) for limiting the distance of the push block (236) sliding out of the fixed sleeve (231).

4. The special processing equipment for diesel engine blocks according to claim 3, characterized in that, The rotating shaft (232) is provided with a fan (2321), and the fan (2321) is located inside the fixed sleeve (231), and the fixed sleeve (231) is provided with a vent hole (2311).

5. The special processing equipment for diesel engine blocks according to claim 1, characterized in that, The processing base (2) includes a processing arm (21) and a drive shaft (22) rotatably mounted on the processing arm (21). The processing arm (21) housing is equipped with a mounting sleeve (24) for connecting a fixing sleeve (231), and the mounting sleeve (24) is provided with a locking element (241) to restrict the rotation of the fixing sleeve (231).