An integrated oil-water cooling disc for internal combustion engines

Abstract

This utility model discloses an integrated oil-water cooling disc for internal combustion engines, relating to the field of mechanical engineering technology. An integrated oil-water cooling disc for internal combustion engines includes a fixed clamping plate, an upper guide rod, a movable clamping plate, a support column, a lower guide rod, four clamping studs, four connecting pipes, and multiple cooling disc bodies. The lower and upper annular reinforcing ribs in the reinforced support and protection assembly form an arc-shaped inner wall that tightly fits against the outer wall of the connecting pipes, forming an annular wrapping structure. This structure evenly distributes the vibration load on the connecting pipes onto the entire annular reinforcing rib, preventing stress concentration at the connection between the connecting pipe and the fixed clamping plate. Simultaneously, multiple inclined support ribs on the outer walls of both further transfer the load to the fixed clamping plate or surrounding structures. Through the dual effect of "annular wrapping + rib dispersion," the stress level at the connection point is significantly reduced, fatigue effects caused by alternating vibration loads are minimized, and the connection reliability between the connecting pipe and the cooling disc body is improved.

Description

Technical Field

[0001] This utility model relates to the field of mechanical engineering technology, and in particular to an integrated oil-water cooling disc for internal combustion engines. Background Technology

[0002] As the core component of power machinery, the internal combustion engine generates a large amount of heat during operation, which needs to be dissipated in a timely manner through a cooling system to ensure operational stability. Among these, the temperature control of lubricating oil and coolant is particularly critical. The lubricating oil needs to be maintained within a reasonable temperature range to ensure lubrication performance, while the coolant needs to efficiently remove heat from components such as the cylinder block and cylinder head. Integrated oil-water cooling discs, as a type of compact plate heat exchanger, integrate the lubricating oil flow channels and coolant flow channels in a stacked disc structure. They utilize the high thermal conductivity of metal discs to achieve heat exchange between oil and water, and have the advantages of small size and high heat exchange efficiency. They are widely used in internal combustion engine equipment such as automobiles and construction machinery.

[0003] The interface of the cooling disc typically adopts a straight pipe structure, which is connected to the disc body by welding or integral molding. The end is equipped with threads or flanges for docking with external water pipes or oil pipes. The connection between the interface and the disc body relies solely on the welding strength or the thickness of the body material to ensure structural stability. There is no special reinforcement support structure on the outer periphery. The sealing method mostly relies on a single sealing ring or gasket, and the seal is achieved by the pre-tightening force of the bolts. However, the internal combustion engine generates continuous vibration during operation. The vibration is transmitted to the interface of the cooling disc through the pipeline. Since the weld or molding transition area at the connection between the interface and the disc body is a stress concentration area, it is prone to micro-cracks due to fatigue effect when subjected to alternating vibration loads for a long time. In severe cases, it can lead to the separation of the interface from the disc body, causing oil or coolant leakage, thereby reducing the service life of the pipeline. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide an integrated oil-water cooling disc for internal combustion engines. This can solve the problem that the welded joint or molding transition area at the connection between the interface and the disc body is a stress concentration area. When subjected to alternating vibration loads for a long time, it is prone to microcracks due to fatigue effect. In severe cases, it can lead to the separation of the interface from the disc body, causing oil or coolant leakage, and thus reducing the service life of the connecting pipe.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an integrated oil-water cooling disc for an internal combustion engine, comprising a fixed clamping plate, an upper guide rod, a movable clamping plate, a support column, a lower guide rod, four clamping studs, four connecting pipes, and multiple cooling disc bodies, wherein the outer walls of the four connecting pipes are provided with reinforced support and protection components;

[0006] The reinforced support and protection assembly includes a lower annular reinforcing rib, an upper annular reinforcing rib, two fixing bolts and two first nuts. All four connecting pipes are fixedly connected to the outer wall of one side of the fixed clamping plate. Multiple support ribs are fixedly connected to the outer wall of the lower annular reinforcing rib, and the same multiple support ribs are fixedly connected to the outer wall of the upper annular reinforcing rib.

[0007] The lower annular reinforcing rib has two fixed protrusions fixedly connected to its outer wall, and the upper annular reinforcing rib has the same two fixed protrusions fixedly connected to its outer wall. Two fixing bolts are slidably sleeved inside the grooves of the fixing protrusions on the lower and upper annular reinforcing ribs. Two first nuts are threadedly connected to one end of the outer wall of the corresponding fixing bolt. Four reinforced support and protection components are respectively set on the outer wall of the corresponding pipe.

[0008] Preferably, the outer wall of one side of the plurality of supporting ribs is inclined, and the inner walls of the lower annular reinforcing rib and the upper annular reinforcing rib are both arc-shaped.

[0009] Preferably, the two fixing protrusions on the lower annular reinforcing rib are used in conjunction with the two fixing protrusions on the upper annular reinforcing rib.

[0010] Preferably, the lower annular reinforcing rib and the upper annular reinforcing rib are fitted together and sleeved on the outer wall of the corresponding pipe.

[0011] The upper and lower annular reinforcing ribs are fixed to the outer wall of the corresponding pipe by means of fixing bolts and first nuts.

[0012] Preferably, one end of the upper guide rod is bolted to the outer wall of the upper protrusion of the fixed clamping plate;

[0013] The upper end of the support column is bolted to the end of the upper guide rod away from the fixed clamping plate.

[0014] Preferably, the two ends of the lower guide rod of the plurality of cooling disc bodies are connected to the lower outer wall of the fixed clamping plate and the lower outer wall of the support column respectively by bolts;

[0015] Among them, the T-shaped block grooves on the upper and lower sides of the main body of multiple cooling discs are respectively slidably connected to the outer walls of the lower T-shaped block of the upper guide rod and the upper T-shaped block of the lower guide rod.

[0016] Preferably, the movable clamping plate is slidably connected to the outer walls of the lower T-block of the upper guide rod and the upper T-block of the lower guide rod via upper and lower T-block grooves and is mounted on the fixed clamping plate and the support column.

[0017] Each of the four clamping studs has a second nut threaded to both ends.

[0018] Preferably, the eight second nuts are arranged in groups of two;

[0019] One side of the movable clamping plate contacts the outer wall of the multiple cooling disc bodies away from the fixed clamping plate.

[0020] Preferably, the four connecting pipes are used in conjunction with the multiple cooling disc bodies via a fixing clamping plate;

[0021] The outer walls of the four clamping studs respectively contact the interiors of the two grooves opened on both sides of the fixed clamping plate and the movable clamping plate.

[0022] Preferably, the movable clamping plate clamps the multiple cooling disc bodies by means of a second nut on the clamping stud.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] 1. The integrated oil-water cooling disc used in this internal combustion engine features an arc-shaped inner wall between the lower and upper annular reinforcing ribs in the reinforced support and protection assembly. This tightly fits the outer wall of the connector, forming an annular wrapping structure. This structure evenly distributes the vibration load on the connector to the entire annular reinforcing rib, preventing stress concentration at the connection between the connector and the fixed clamping plate. Simultaneously, multiple inclined support ribs on the outer walls of both structures further transfer the load to the fixed clamping plate or surrounding structures. Through the dual effect of "annular wrapping + rib dispersion," the stress level at the connection point is significantly reduced, minimizing fatigue effects caused by alternating vibration loads. This fundamentally inhibits the generation of microcracks and improves the connection reliability between the connector and the cooling disc body. Attached Figure Description

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0026] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0027] Figure 2 This is a schematic diagram of the external structure of the cooling disc body of this utility model;

[0028] Figure 3 This is a schematic diagram of the external structure of the lower guide rod of this utility model;

[0029] Figure 4 This utility model Figure 2 A structural schematic diagram of the enlarged view at point A in the middle.

[0030] Reference numerals in the attached diagram: 1. Fixed clamping plate; 2. Connecting pipe; 3. Fixed protrusion; 4. Lower annular reinforcing rib; 5. First nut; 6. Upper annular reinforcing rib; 7. Support rib; 8. Cooling disc body; 9. Clamping stud; 10. Second nut; 11. Upper guide rod; 12. Fixing bolt; 13. Movable clamping plate; 14. Support column; 15. Lower guide rod. Detailed Implementation

[0031] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0032] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0034] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0035] Please see Figure 1-4 This utility model provides a technical solution: an integrated oil-water cooling disc for internal combustion engines, including a fixed clamping plate 1, an upper guide rod 11, a movable clamping plate 13, a support column 14, a lower guide rod 15, four clamping studs 9, four connecting pipes 2, and multiple cooling disc bodies 8.

[0036] The outer walls of all four pipes 2 are equipped with reinforced support and protection components;

[0037] The reinforced support and protection assembly includes a lower annular reinforcing rib 4, an upper annular reinforcing rib 6, two fixing bolts 12, and two first nuts 5. Four connecting pipes 2 are fixedly connected to the outer wall of one side of the fixed clamping plate 1. Multiple supporting ribs 7 are fixedly connected to the outer wall of the lower annular reinforcing rib 4, and the same multiple supporting ribs 7 are fixedly connected to the outer wall of the upper annular reinforcing rib 6. One side of the outer wall of the multiple supporting ribs 7 is inclined. The inner walls of both the lower annular reinforcing rib 4 and the upper annular reinforcing rib 6 are arc-shaped. Two fixing protrusions 3 are fixedly connected to the outer wall of the lower annular reinforcing rib 4, and the same two fixing protrusions 3 are fixedly connected to the outer wall of the upper annular reinforcing rib 6. The two fixing protrusions 3 on the lower annular reinforcing rib 4 cooperate with the two fixing protrusions 3 on the upper annular reinforcing rib 6. The two fixing bolts 12 are slidably sleeved inside the grooves of the fixing protrusions 3 on the lower annular reinforcing rib 4 and the upper annular reinforcing rib 6. The two first nuts 5 are respectively threaded to one end of the outer wall of the corresponding fixing bolt 12. The lower annular reinforcing rib 4 and the upper annular reinforcing rib 6 are sleeved on the outer wall of the corresponding connecting pipe 2. The upper annular reinforcing rib 6 and the lower annular reinforcing rib 4 are fixed to the outer wall of the corresponding connecting pipe 2 by the fixing bolts 12 and the first nuts 5. The four reinforced support and protection components are respectively set on the outer wall of the corresponding connecting pipe 2.

[0038] One end of the upper guide rod 11 is bolted to the outer wall of the upper protrusion of the fixed pressure plate 1. The upper end of the support column 14 is bolted to the end of the upper guide rod 11 away from the fixed pressure plate 1. Multiple cooling disc bodies 8 cooperate with each other. The two ends of the lower guide rod 15 are bolted to the lower outer wall of the fixed pressure plate 1 and the lower outer wall of the support column 14, respectively. The upper and lower T-shaped block grooves on both sides of the multiple cooling disc bodies 8 are slidably connected to the outer walls of the lower T-shaped block of the upper guide rod 11 and the upper T-shaped block of the lower guide rod 15, respectively. The movable pressure plate 13 is connected to the outer walls of the lower T-shaped block of the upper guide rod 11 and the upper T-shaped block of the lower guide rod 15 through the upper and lower T-shaped block grooves. The four clamping studs 9 are slidably installed on the fixed pressure plate 1 and the support column 14. The two ends of each of the four clamping studs 9 are threaded with a second nut 10. The eight second nuts 10 are in pairs. One side of the outer wall of the movable pressure plate 13 contacts the side of the multiple cooling plate bodies 8 away from the fixed pressure plate 1. The four connecting pipes 2 are used in conjunction with the multiple cooling plate bodies 8 through the fixed pressure plate 1. The outer walls of the four clamping studs 9 respectively contact the two grooves opened on both sides of the fixed pressure plate 1 and the movable pressure plate 13. The movable pressure plate 13 presses the multiple cooling plate bodies 8 through the second nuts 10 on the clamping studs 9.

[0039] Furthermore, when using this device, when the internal combustion engine is working, the oil-water mixture that needs cooling enters the cooling system through the pipe 2 on one side of the fixed clamping plate 1. Multiple cooling disc bodies 8 are stacked between the fixed clamping plate 1 and the movable clamping plate 13. Through the fastening action of four clamping studs 9, adjacent cooling disc bodies 8 are tightly fitted together, forming a closed flow channel. When the oil-water mixture flows in the flow channel, it exchanges heat with the wall surface of the cooling disc body 8. The heat is transferred to the external environment through the discs to achieve cooling. The cooled oil-water mixture flows out through the pipe 2 on the other side, completing the cooling cycle. The upper guide rod 11 and the lower guide rod 15 pass through the fixed clamping plate 1 and the movable clamping plate 13, and together with the support column 14, ensure that the stacked cooling disc bodies 8 do not shift, ensure the flow channel is unobstructed, and improve the heat exchange efficiency. Because the internal combustion engine generates vibration during operation, and the fluid flow inside the connector 2 may cause pressure shocks, the reinforced support and protection components ensure the stability of the connector 2 through multiple structures. The inner walls of the lower annular reinforcing rib 4 and the upper annular reinforcing rib 6 are arc-shaped and fit tightly against the outer wall of the connector 2. Two fixing bolts 12 pass through the grooves of the corresponding fixing protrusions 3 and are fastened to the outer wall of the connector 2 with the first nut 5, forming an annular wrapping structure. At the same time, multiple support ribs 7 (one side inclined) on the outer walls of the lower annular reinforcing rib 4 and the upper annular reinforcing rib 6 further disperse the radial and axial forces on the connector 2, enhancing the connector 2's resistance to deformation. This design can effectively resist the bending or breakage of the connector 2 caused by vibration and fluid shock, ensuring the stable delivery of the oil-water mixture and avoiding cooling system failure due to connector damage.

[0040] By strengthening the inner walls of the lower annular reinforcing rib 4 and the upper annular reinforcing rib 6 in the support and protection components to be arc-shaped and closely fitted with the outer wall of the connector 2 to form an annular wrapping structure, the vibration load on the connector 2 can be evenly distributed to the entire annular reinforcing rib, avoiding stress concentration at the connection between the connector 2 and the fixed clamping plate 1. At the same time, the multiple inclined support ribs 7 on the outer walls of both further transfer the load to the fixed clamping plate 1 or the surrounding structure. Through the dual effect of "annular wrapping + rib dispersion", the stress level at the connection is significantly reduced, the fatigue effect caused by alternating vibration load is reduced, the generation of microcracks is suppressed from the root, and the connection reliability between the connector 2 and the cooling disc body is improved.

[0041] Structural Description: Fixed clamping plate 1: As the basic fixed component of the cooling system, four pipes 2 are fixedly connected to one side of the outer wall. It cooperates with the movable clamping plate 13 to fix the stacked cooling disc body 8 through the clamping studs 9, providing the installation reference for the entire device;

[0042] Cooling disc body 8: Multiple discs are stacked between the fixed clamping plate 1 and the movable clamping plate 13. It is the core component of heat exchange. The internal flow channel allows the oil-water mixture to pass through. Heat transfer is achieved through the large-area wall contact, thus completing the cooling function.

[0043] Movable clamping plate 13: It is set opposite to the fixed clamping plate 1. It uses the clamping force of four clamping studs 9 to press the multiple cooling disc bodies 8 together, ensuring the flow channel is sealed and preventing the oil-water mixture from leaking.

[0044] Clamping studs 9: There are four clamping studs 9 in total, which pass through the fixed clamping plate 1 and the movable clamping plate 13. The clamping force is adjusted by tightening the nuts to ensure the tight fit of the cooling disc body 8. It is a key component to maintain the sealing of the flow channel.

[0045] Connector 2: Fixed to the outer wall of one side of the fixed clamping plate 1, used for the entry and exit of oil-water mixture, and is the channel for fluid to enter and exit the cooling system. Its stability directly affects the continuity of the cooling cycle.

[0046] Upper guide rod 11, lower guide rod 15 and support column 14: Upper guide rod 11 and lower guide rod 15 are respectively connected to the upper and lower ends of the fixed pressure plate 1 and the movable pressure plate 13, and support column 14 provides auxiliary support. The three work together to limit the lateral displacement of the cooling disc body 8, ensure the stability of the stacked structure, and avoid disc misalignment due to vibration.

[0047] The lower annular reinforcing rib 4 and the upper annular reinforcing rib 6 have arc-shaped inner walls that fit the outer wall of the pipe 2. After being fastened by the fixing bolt 12 and the first nut 5, they form an annular support structure that wraps around the pipe 2, which enhances the radial compressive strength of the pipe 2 and prevents it from deforming due to external forces.

[0048] Fixing bolts 12 and first nut 5: Two fixing bolts 12 pass through the fixing protrusions 3 of the lower annular reinforcing rib 4 and the upper annular reinforcing rib 6, and together with the first nut 5, they tightly fix the reinforcing rib to the pipe 2, ensuring that the annular structure does not loosen and is suitable for the vibration environment of the pipe.

[0049] Fixed protrusions 3: Two are fixed to the outer walls of the lower annular reinforcing rib 4 and the upper annular reinforcing rib 6, which are used to pass through the fixing bolts 12, provide force points for the fastening of the reinforcing ribs, and ensure the fit between the annular structure and the connecting pipe 2.

[0050] Support ribs 7: Multiple support ribs 7 are fixed to the outer walls of the lower annular reinforcing rib 4 and the upper annular reinforcing rib 6 respectively. One side is inclined to disperse the axial and radial impact forces (such as vibration and fluid pressure) on the pipe 2, further improve the deformation resistance of the reinforcing rib, and indirectly enhance the structural stability of the pipe 2.

[0051] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An integrated oil and water cooling disc for internal combustion engines comprising a fixed compression plate (1), an upper guide rod (11), a movable compression plate (13), a support strut (14), a lower guide rod (15), four clamping studs (9), four connecting pipes (2) and a plurality of cooling disc bodies (8), characterized in that: The outer walls of all four of the aforementioned pipes (2) are provided with reinforced support and protection components; The reinforced support and protection assembly includes a lower annular reinforcing rib (4), an upper annular reinforcing rib (6), two fixing bolts (12) and two first nuts (5). The four connecting pipes (2) are all fixedly connected to the outer wall of one side of the fixed clamping plate (1). The outer wall of the lower annular reinforcing rib (4) is fixedly connected to multiple support ribs (7), and the outer wall of the upper annular reinforcing rib (6) is fixedly connected to the same multiple support ribs (7). Among them, the outer wall of the lower annular reinforcing rib (4) is fixedly connected to two fixed protrusions (3), the outer wall of the upper annular reinforcing rib (6) is fixedly connected to the same two fixed protrusions (3), the two fixed bolts (12) are slidably sleeved in the grooves of the fixed protrusions (3) on the lower annular reinforcing rib (4) and the upper annular reinforcing rib (6), the two first nuts (5) are respectively threaded to one end of the outer wall of the corresponding fixed bolt (12), and the four reinforced support and protection components are respectively set on the outer wall of the corresponding pipe (2).

2. An integrated oil and water cooling disc for an internal combustion engine according to claim 1, characterized in that: The outer wall of one side of the multiple supporting ribs (7) is inclined, and the inner wall of the lower annular reinforcing rib (4) and the upper annular reinforcing rib (6) is arc-shaped.

3. The integrated oil-water cooling disc for an internal combustion engine according to claim 1, characterized in that: The two fixing protrusions (3) on the lower annular reinforcing rib (4) are used in conjunction with the two fixing protrusions (3) on the upper annular reinforcing rib (6).

4. The integrated oil-water cooling disc for an internal combustion engine according to claim 1, characterized in that: The lower annular reinforcing rib (4) and the upper annular reinforcing rib (6) are fitted together on the outer wall of the corresponding connecting pipe (2); Among them, the upper annular reinforcing rib (6) and the lower annular reinforcing rib (4) are fixed to the outer wall of the corresponding pipe (2) by means of fixing bolts (12) and first nuts (5).

5. An integrated oil-water cooling disc for an internal combustion engine according to claim 1, characterized in that: One end of the upper guide rod (11) is bolted to the outer wall of the upper protrusion of the fixed clamping plate (1); The upper end of the support column (14) is bolted to the end of the upper guide rod (11) away from the fixed clamping plate (1).

6. An integrated oil-water cooling disc for an internal combustion engine according to claim 1, characterized in that: Multiple cooling disc bodies (8) are used in conjunction with the two ends of the lower guide rod (15) to be connected to the lower outer wall of the fixed clamping plate (1) and the lower outer wall of the support column (14) respectively by bolts; Among them, the upper and lower T-shaped block grooves of multiple cooling disc bodies (8) are respectively slidably connected to the outer walls of the lower T-shaped block of the upper guide rod (11) and the upper T-shaped block of the lower guide rod (15).

7. An integrated oil-water cooling disc for an internal combustion engine according to claim 1, characterized in that: The movable clamping plate (13) is slidably connected to the outer wall of the lower T-block of the upper guide rod (11) and the upper T-block of the lower guide rod (15) through the upper and lower T-block grooves and is installed on the fixed clamping plate (1) and the support column (14). Each of the four clamping studs (9) has a second nut (10) threaded to both ends.

8. An integrated oil-water cooling disc for an internal combustion engine according to claim 7, characterized in that: The eight second nuts (10) are in pairs; Among them, one side of the outer wall of the movable clamping plate (13) is in contact with the side of the outer wall of the multiple cooling disc bodies (8) away from the fixed clamping plate (1).

9. An integrated oil-water cooling disc for an internal combustion engine according to claim 1, characterized in that: The four connecting pipes (2) are used in conjunction with the multiple cooling disc bodies (8) via a fixed clamping plate (1); The outer walls of the four clamping studs (9) respectively contact the interiors of the two grooves opened on both sides of the fixed clamping plate (1) and the movable clamping plate (13).

10. An integrated oil-water cooling disc for an internal combustion engine according to claim 1, characterized in that: The movable clamping plate (13) clamps the multiple cooling disc bodies (8) by means of the second nut (10) on the clamping stud (9).

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