A lubricating oil cooling heat exchanger for a combined gearbox

Abstract

The utility model discloses a lubricating oil cooling heat exchanger for parallel car gear box relates to parallel car gear box technical field, and the utility model discloses a bottom plate is provided with the casing on the upper surface fixedly arranged of bottom plate, is equipped with the heat exchange subassembly on the casing, the heat exchange subassembly includes the heat exchange board, and the heat exchange board sets up several, and the inner chamber fixedly arranged of casing has U type seat, in the utility model, through setting up the heat exchange subassembly on the casing, under the action of two one pipe orifice, two two pipe orifices, a first communication pipe, second communication pipe and multiple heat exchange board in heat exchange subassembly, can introduce the high temperature lubricating oil in parallel car gear box into the casing, and after passing through multiple heat exchange boards, the high temperature lubricating oil is returned to parallel car gear box, along with low temperature fluid synchronous through multiple heat exchange boards, can transmit the heat of high temperature lubricating oil to low temperature fluid, realizes heat exchange, to realize the sustained cooling of parallel car gear box high temperature lubricating oil, thereby improves the operation efficiency and service life of parallel car gear box.

Description

Technical Field

[0001] This utility model relates to the field of parallel gearbox technology, specifically to a lubricating oil cooling heat exchanger for parallel gearboxes. Background Technology

[0002] The tandem gearbox is a key device in a marine propulsion system used to coordinate the power output of two engines. Its core function is to achieve synchronous control and torque balance of the two power inputs. During the operation of parallel gearboxes, the high-temperature lubricating oil inside the parallel gearboxes is mainly cooled by natural heat dissipation, forced circulation cooling, water cooling, and air cooling. However, none of the above heat dissipation and cooling methods can achieve continuous cooling of the high-temperature lubricating oil, thus affecting the operating efficiency and service life of the parallel gearboxes. Utility Model Content

[0003] In order to solve the above problems, the purpose of this utility model is to provide a lubricating oil cooling heat exchanger for parallel gearboxes.

[0004] To solve the above technical problems, the present invention adopts the following technical solution: a lubricating oil cooling heat exchanger for parallel gearboxes, comprising a base plate, a housing fixedly disposed on the upper surface of the base plate, and a heat exchange assembly disposed on the housing; The heat exchange assembly includes heat exchange plates, and several heat exchange plates are arranged. A U-shaped seat is fixedly arranged in the inner cavity of the shell. Several heat exchange plates are movably arranged in the inner wall of the U-shaped seat. Two No. 1 pipe ports and two No. 2 pipe ports are fixedly arranged on one side of the shell, and the two No. 1 pipe ports and two No. 2 pipe ports are distributed vertically. A No. 1 connecting pipe and a No. 2 connecting pipe are fixedly arranged on the other side of the shell. The two No. 1 pipe ports are horizontally aligned with the No. 1 connecting pipe, and the two No. 2 pipe ports are horizontally aligned with the No. 2 connecting pipe.

[0005] Preferably, ear plates are fixedly provided on all four sides of the base plate, and the ear plates are provided with a plurality of mounting holes.

[0006] Preferably, a No. 1 sealing ring is fixedly provided at the ends of both No. 1 pipe openings and No. 1 connecting pipe, and one side of the No. 1 sealing ring is in movable contact with the edge of the corner hole of the heat exchange plate.

[0007] Preferably, a second sealing ring is fixedly provided at the ends of both the second pipe openings and the second connecting pipe, and one side of the second sealing ring is in contact with the edge of the corner hole of the heat exchange plate.

[0008] Preferably, a flange is fixedly installed at one end of each of the two No. 1 pipe ports and the two No. 2 pipe ports.

[0009] Preferably, the housing is provided with an installation assembly, the installation assembly including a housing cover, the housing cover being detachably installed at the upper end of the housing, a clamping seat being fixedly provided on the lower surface of the housing cover, the lower surface of the clamping seat being in movable contact with the upper end face of the U-shaped seat, a plurality of locking screws being threadedly rotatably installed on the housing cover, a plurality of threaded holes being provided on the upper end face of the U-shaped seat, and one end of the locking screw being threadedly rotatably connected to the inner wall of the threaded hole.

[0010] Preferably, a hexagonal seat is fixedly provided at the other end of the locking screw.

[0011] Preferably, a sealing gasket is fixedly provided on the lower surface of the shell cover, and a connecting groove is provided at the upper end of the shell, wherein the sealing gasket and the inner wall of the connecting groove are in movable contact.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. In this utility model, through the heat exchange assembly set on the shell, the high-temperature lubricating oil in the parallel gearbox can be introduced into the shell by the action of two No. 1 ports, two No. 2 ports, No. 1 connecting pipe, No. 2 connecting pipe and multiple heat exchange plates in the heat exchange assembly. After passing through multiple heat exchange plates, it flows back to the parallel gearbox. Along with the low-temperature fluid passing through multiple heat exchange plates, the heat of the high-temperature lubricating oil can be transferred to the low-temperature fluid to achieve heat exchange, so as to achieve continuous cooling of the high-temperature lubricating oil in the parallel gearbox, thereby improving the operating efficiency and service life of the parallel gearbox; 2. In this utility model, by setting an installation component on the shell, the shell cover and the clamping seat can be disassembled, so that the upper end of the shell is in an open state, and the heat exchange plate inside the shell can be taken out, thereby facilitating the operator to replace the heat exchange plate. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the overall structure of a lubricating oil cooling heat exchanger for a parallel gearbox according to the present invention.

[0015] Figure 2 This is another overall structural schematic diagram of a lubricating oil cooling heat exchanger for parallel gearboxes according to the present invention.

[0016] Figure 3 This is a schematic diagram of the separation structure of the cover and the shell of this utility model.

[0017] Figure 4 This is a cross-section of the shell of this utility model and a structural schematic diagram of the heat exchange assembly.

[0018] Figure 5 This is a schematic diagram of the composition and structure of the heat exchange component of this utility model.

[0019] In the diagram: 1. Base plate; 11. Ear plate; 12. Mounting hole; 2. Shell; 21. Heat dissipation port; 3. Heat exchange assembly; 4. Mounting assembly; 31. Heat exchange plate; 32. U-shaped seat; 33. No. 1 pipe port; 34. No. 1 connecting pipe; 341. No. 1 sealing ring; 35. No. 2 pipe port; 36. No. 2 connecting pipe; 361. No. 2 sealing ring; 37. Flange; 41. Shell cover; 42. Pressure seat; 43. Locking screw; 44. Threaded hole; 45. Hexagonal seat; 46. Sealing gasket; 47. Connecting groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: Figure 1-5 As shown, this utility model provides a lubricating oil cooling heat exchanger for a parallel gearbox, including a base plate 1. Ear plates 11 are fixedly provided on all four sides of the base plate 1. Several mounting holes 12 are provided on the ear plates 11. By providing mounting holes 12, the base plate 1 can be fixed on the frame around the parallel gearbox. A housing 2 is fixedly provided on the upper surface of the base plate 1. Heat dissipation vents 21 are provided on both sides of the housing 2. The two heat dissipation vents 21 are used for airflow in the inner cavity of the housing 2. A heat exchange component 3 is provided on the housing 2. By providing a heat exchange component 3, the heat exchange component 3 can continuously cool the high-temperature lubricating oil in the parallel gearbox. The heat exchange assembly 3 includes several heat exchange plates 31. By arranging multiple heat exchange plates 31 inside the housing 2, when high-temperature lubricating oil from the gearbox enters the housing 2, the high-temperature lubricating oil passes through the multiple heat exchange plates 31, simultaneously passing through the multiple heat exchange plates 31 along with the low-temperature fluid. This transfers heat from the high-temperature lubricating oil to the low-temperature fluid, achieving heat exchange and cooling the high-temperature lubricating oil. A U-shaped seat 32 is fixedly arranged inside the housing 2, and several heat exchange plates 31 are movably arranged within the inner wall of the U-shaped seat 32. Two No. 1 ports 33 and two No. 2 ports 35 are fixedly installed on one side, with the two No. 1 ports 33 and the two No. 2 ports 35 distributed vertically. On the other side of the housing 2, a No. 1 connecting pipe 34 and a No. 2 connecting pipe 36 are fixedly installed. Through the two No. 1 ports 33 and the No. 1 connecting pipe 34, the high-temperature lubricating oil in the parallel gearbox can enter a corner hole of the heat exchange plate 31 through one of the No. 1 ports 33, pass through multiple heat exchange plates 31, turn back through the No. 1 connecting pipe 34, and then return to the parallel gearbox through the other No. 1 port 33. Inside the gearbox, two No. 1 pipe ports 33 are horizontally aligned with No. 1 connecting pipe 34. A No. 1 sealing ring 341 is fixedly installed at the ends of both No. 1 pipe ports 33 and No. 1 connecting pipe 34. One side of the No. 1 sealing ring 341 is in movable contact with the edge of the corner hole of the heat exchange plate 31. By installing the No. 1 sealing ring 341, the sealing performance between the No. 1 pipe ports 33 and No. 1 connecting pipe 34 and the corner hole of the heat exchange plate 31 is improved. Two No. 2 pipe ports 35 are horizontally aligned with No. 2 connecting pipe 36. By installing the two No. 2 pipe ports 35 and No. 2 connecting pipe 36... 6. The cryogenic fluid can flow through one of the No. 2 pipe ports 35 through multiple heat exchange plates 31, bend back through the No. 2 connecting pipe 36, and then be discharged through another No. 2 pipe port 35 to realize the circulation of the cryogenic fluid. The ends of the two No. 2 pipe ports 35 and the No. 2 connecting pipe 36 are all fixedly provided with No. 2 sealing rings 361. One side of the No. 2 sealing ring 361 is in active contact with the edge of the corner hole of the heat exchange plate 31. By setting the No. 2 sealing ring 361, the No. 2 sealing ring 361 can improve the sealing performance between the No. 2 pipe port 35 and the No. 2 connecting pipe 36 and the corner hole of the heat exchange plate 31.

[0022] Flanges 37 are fixedly installed at one end of each of the two No. 1 ports 33 and the two No. 2 ports 35. By installing flanges 37, the assembly of the No. 1 ports 33 and the No. 2 ports 35 can be facilitated.

[0023] The housing 2 is equipped with a mounting assembly 4, which facilitates the installation and removal of the heat exchange plate 31, allowing operators to easily replace it. The mounting assembly 4 includes a housing cover 41, which is detachably mounted on the upper end of the housing 2. A clamping seat 42 is fixedly mounted on the lower surface of the housing cover 41, and the lower surface of the clamping seat 42 is in movable contact with the upper end face of the U-shaped seat 32. Several locking screws 43 are threadedly mounted on the housing cover 41. The upper end face of 2 is provided with several threaded holes 44. One end of the locking screw 43 is threadedly connected to the inner wall of the threaded hole 44. The other end of the locking screw 43 is fixedly provided with a hexagonal seat 45. By manually or by placing an electric wrench on the hexagonal seat 45, the locking screw 43 can be rotated. When the locking screw 43 is threaded into the inside of the threaded hole 44, the cover 41 can be fixed to the upper end of the housing 2. The pressing seat 42 presses against the upper part of the multiple heat exchange plates 31 to fix the heat exchange plates 31.

[0024] A sealing gasket 46 is fixedly provided on the lower surface of the cover 41, and a connecting groove 47 is provided at the upper end of the housing 2. The sealing gasket 46 and the inner wall of the connecting groove 47 are in contact. By providing the sealing gasket 46 and the connecting groove 47, the sealing performance between the cover 41 and the housing 2 can be improved.

[0025] Working principle: During the cooling process of the parallel gearbox lubricating oil, one of the upper No. 1 ports 33 is connected to one end of the parallel gearbox lubricating oil circulation pipeline to introduce the high-temperature lubricating oil to be cooled, and one of the lower No. 1 ports 33 is connected to the other end of the parallel gearbox lubricating oil pipeline to allow the cooled low-temperature lubricating oil to enter the parallel gearbox. Meanwhile, a low-temperature fluid is introduced through a No. 2 port 35 at the top. The low-temperature fluid flows through multiple heat exchange plates 31, turns back through the No. 2 connecting pipe 36, passes through multiple heat exchange plates 31 again, and is discharged through a No. 2 port 35 at the bottom, thus realizing the circulation of the low-temperature fluid. As the high-temperature lubricating oil in the parallel gearbox flows through multiple heat exchange plates 31 via a No. 1 port 33 at the top, and then turns back through the No. 1 connecting pipe 34 and passes through multiple heat exchange plates 31 again, it returns to the parallel gearbox through another No. 1 port 33. During this process, the low-temperature fluid passes through multiple heat exchange plates 31 simultaneously, which can transfer the heat of the high-temperature lubricating oil to the low-temperature fluid, thereby achieving heat exchange and cooling down the high-temperature lubricating oil. When the heat exchange plate 31 needs to be replaced, the operator first rotates the multiple hexagonal seats 45 to disengage the locking screw 43 from the threaded hole 44, and then pulls the shell cover 41 upwards. The shell cover 41 and the clamping seat 42 disengage from the upper end of the shell 2, and the multiple heat exchange plates 31 can be removed one by one from the inside of the shell 2.

[0026] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0027] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A lubricating oil cooling heat exchanger for parallel gearboxes, comprising a base plate (1), characterized in that: A shell (2) is fixedly installed on the upper surface of the base plate (1), and a heat exchange assembly (3) is provided on the shell (2). The heat exchange assembly (3) includes heat exchange plates (31), and several heat exchange plates (31) are provided. A U-shaped seat (32) is fixedly provided in the inner cavity of the shell (2). Several heat exchange plates (31) are movably arranged in the inner wall of the U-shaped seat (32). Two No. 1 pipe ports (33) and two No. 2 pipe ports (35) are fixedly provided on one side of the shell (2). The two No. 1 pipe ports (33) and two No. 2 pipe ports (35) are distributed vertically. A No. 1 connecting pipe (34) and a No. 2 connecting pipe (36) are fixedly provided on the other side of the shell (2). The two No. 1 pipe ports (33) are horizontally corresponding to the No. 1 connecting pipe (34), and the two No. 2 pipe ports (35) are horizontally corresponding to the No. 2 connecting pipe (36).

2. The lubricating oil cooling heat exchanger for a parallel gearbox as described in claim 1, characterized in that, The base plate (1) is fixedly provided with ear plates (11) on all four sides, and the ear plates (11) are provided with a number of mounting holes (12).

3. The lubricating oil cooling heat exchanger for a parallel gearbox as described in claim 1, characterized in that, A sealing ring (341) is fixedly installed at the ends of both No. 1 pipe openings (33) and No. 1 connecting pipe (34), and one side of the sealing ring (341) is in contact with the edge of the corner hole of the heat exchange plate (31).

4. The lubricating oil cooling heat exchanger for a parallel gearbox as described in claim 1, characterized in that, The ends of the two No. 2 pipe ports (35) and the No. 2 connecting pipe (36) are all fixedly provided with No. 2 sealing rings (361), and one side of the No. 2 sealing ring (361) is in contact with the edge of the corner hole of the heat exchange plate (31).

5. A lubricating oil cooling heat exchanger for a parallel gearbox as described in claim 1, characterized in that, A flange (37) is fixedly installed at one end of each of the two No. 1 pipe ports (33) and the two No. 2 pipe ports (35).

6. The lubricating oil cooling heat exchanger for a parallel gearbox as described in claim 1, characterized in that, The housing (2) is provided with an installation assembly (4), which includes a housing cover (41). The housing cover (41) is detachably installed on the upper end of the housing (2). A clamping seat (42) is fixedly provided on the lower surface of the housing cover (41). The lower surface of the clamping seat (42) is in contact with the upper end face of the U-shaped seat (32). A plurality of locking screws (43) are threadedly installed on the housing cover (41). A plurality of threaded holes (44) are provided on the upper end face of the U-shaped seat (32). One end of the locking screw (43) is threadedly connected to the inner wall of the threaded hole (44).

7. A lubricating oil cooling heat exchanger for a parallel gearbox as described in claim 6, characterized in that, The other end of the locking screw (43) is fixedly provided with a hexagonal seat (45).

8. A lubricating oil cooling heat exchanger for a parallel gearbox as described in claim 6, characterized in that, A sealing gasket (46) is fixedly provided on the lower surface of the cover (41), and a connecting groove (47) is provided at the upper end of the housing (2). The sealing gasket (46) and the inner wall of the connecting groove (47) are in contact.

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