Lubricating oil heating device

Abstract

The utility model discloses a lubricating oil heating device which comprises a heater, a heating rod installed in the heater, an oil outlet pipe installed at the bottom of the heater and an oil inlet pipe arranged at the top of the heater. A transition cavity is formed between the oil inlet pipe and the heater, a filter frame end plate is installed on the surface of the right side of the transition cavity, a metal filter screen frame is fixed to the surface of the left side of the filter frame end plate, and the metal filter screen frame is inserted into the inner side of the transition cavity; four fixing structures are arranged on the surface of the right side of the transition cavity; according to the lubricating oil heating device, an existing lubricating oil heating device is improved and optimized, the transition cavity structure is designed at the oil inlet of the heater, the metal filter screen is arranged in the transition cavity, the transition cavity serves as a buffer area for lubricating oil to enter the heater, and the metal filter screen in the transition cavity can physically intercept large-particle impurities in the lubricating oil; impurities in lubricating oil are prevented from entering the heater to cause blockage, and the use stability of the heater is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of lubricating oil heating technology, and specifically relates to a lubricating oil heating device. Background Technology

[0002] In mechanical lubrication systems, lubricating oil heating devices are key components that ensure the normal operation of equipment in low-temperature environments. Traditional lubricating oil heating devices typically heat the lubricating oil through built-in heating rods to improve its fluidity and lubrication performance. For example, the existing patent with publication number CN212746916U discloses "a lubricating oil heating device, including a tank, wherein an electric heating tube is provided in the tank, the electric heating tube is rotatably connected to the tank, and a plurality of heat-conducting discs are sleeved on the electric heating tube; a plurality of first heat-conducting teeth and a plurality of second heat-conducting teeth are provided on the outer side of the heat-conducting discs, and the first heat-conducting teeth are arranged along the axial direction of the heat-conducting discs." It can be seen that the application describes a common lubricating oil heating device.

[0003] However, during long-term operation, foreign objects such as metal shavings, sludge, and fibrous impurities may be mixed into the lubricating oil. These impurities not only contaminate the lubricating oil but may also enter the heating device and cause problems. On the one hand, impurities may block the internal flow channels of the heater, leading to increased lubricating oil flow resistance and reduced heating efficiency. On the other hand, hard foreign objects may directly scratch the surface of the heating rod or rub against the shell, causing equipment failure or safety hazards. Therefore, this utility model proposes a lubricating oil heating device. Utility Model Content

[0004] The purpose of this invention is to provide a lubricating oil heating device to solve the problem mentioned in the background art that existing lubricating oil heating devices are prone to unnecessary blockage and damage caused by impurities in the lubricating oil.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lubricating oil heating device, comprising...

[0006] Heater, heating rod installed inside the heater, oil outlet pipe installed at the bottom of the heater, and oil inlet pipe installed at the top of the heater;

[0007] A transition cavity is provided between the oil inlet pipe and the heater. A filter frame end plate is installed on the right side surface of the transition cavity, and a metal filter screen frame is fixed on the left side surface of the filter frame end plate. The metal filter screen frame is inserted into the inside of the transition cavity.

[0008] Four fixing structures are provided on the right side surface of the transition cavity.

[0009] Preferably, the fixing structure includes a threaded base rod fixed to the right side surface of the transition cavity, and a circular base, a limiting pressure plate, and a nut sleeved on the surface of the threaded base rod. The circular base and the limiting pressure plate are welded and fixed. The nut is threadedly connected to the threaded base rod. The surface of the filter frame end plate is provided with a pressure plate groove corresponding to the limiting pressure plate. The end of the limiting pressure plate is embedded in the pressure plate groove and presses the filter frame end plate tightly.

[0010] Preferably, the end surface of the threaded base rod is further fixed with an anti-detachment end block, and the nut is located between the anti-detachment end block and the limiting pressure plate.

[0011] Preferably, the right side surface of the transition cavity is provided with a rectangular socket for inserting a metal filter frame, and the rectangular socket is provided with a sealing structure.

[0012] Preferably, the sealing structure includes a U-shaped side groove formed on the inner wall of the rectangular socket, a U-shaped side pad embedded in the U-shaped side groove, and an integrated U-shaped inner sealing gasket set on the inner wall of the U-shaped side pad, wherein the U-shaped inner sealing gasket is in pressure contact with the surface of the metal filter frame.

[0013] Preferably, the surface of the metal filter frame is provided with an integral U-shaped protrusion, and the inner wall of the U-shaped inner sealing gasket is provided with a U-shaped groove corresponding to the U-shaped protrusion, and the U-shaped protrusion is squeezed into the U-shaped groove.

[0014] Preferably, a positioning support block is fixed to the left inner wall of the transition cavity, and a positioning support groove corresponding to the positioning support block is opened on the left surface of the metal filter frame, and the positioning support block is inserted into the positioning support groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model improves and optimizes the existing lubricating oil heating device by designing a transition cavity structure at the oil inlet of the heater and setting a metal filter screen inside the transition cavity. The transition cavity serves as a buffer area for lubricating oil to enter the heater, and the metal filter screen inside can physically intercept large particles of impurities in the lubricating oil, preventing impurities in the lubricating oil from entering the heater and causing blockage, thus ensuring the stability of the heater in use. At the same time, corresponding fixing and sealing structures are designed to ensure the convenience of disassembling and replacing the filter screen in the later stage, and to ensure the convenience of subsequent maintenance of the heater. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This utility model Figure 1 A magnified view of a portion of region A in the middle;

[0019] Figure 4 This utility model Figure 2 A magnified view of a portion of region B in the middle;

[0020] Figure 5 This utility model Figure 2 A magnified view of a portion of region C in the middle;

[0021] In the diagram: 1. Heater; 2. Oil inlet pipe; 3. Transition cavity; 31. Rectangular socket; 32. U-shaped side groove; 33. U-shaped side gasket; 34. U-shaped inner sealing gasket; 35. U-shaped retaining groove; 36. Positioning support block; 4. Oil outlet pipe; 5. Filter frame end plate; 51. Metal filter screen frame; 52. U-shaped protrusion; 53. Positioning support groove; 6. Fixing structure; 61. Threaded base rod; 62. Circular base; 63. Limiting pressure plate; 64. Nut; 65. Anti-detachment end block; 66. Pressure plate retaining groove; 7. Heating rod. Detailed Implementation

[0022] 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.

[0023] Example 1

[0024] Please see Figures 1 to 4 This is the first embodiment of the present invention, which provides a technical solution: a lubricating oil heating device, comprising...

[0025] Heater 1, heating rod 7 installed inside heater 1, oil outlet pipe 4 installed at the bottom of heater 1, and oil inlet pipe 2 set at the top of heater 1. Heating rod 7 is an electric heating rod that can generate heat when powered on. All of the above structures are technologies that have been fully disclosed in the prior art. For the specific structural principles, please refer to the existing patent with publication number CN212746916U. It will not be elaborated here.

[0026] A transition chamber 3 is provided between the oil inlet pipe 2 and the heater 1, and the three are connected. This allows the lubricating oil to transition inside the transition chamber 3 before entering the heater 1 from the oil inlet pipe 2. A filter frame end plate 5 is installed on the right side surface of the transition chamber 3, and a metal filter screen frame 51 is welded and fixed to the left side surface of the filter frame end plate 5. The metal filter screen frame 51 is inserted into the inside of the transition chamber 3, so that after the lubricating oil enters the transition chamber 3 through the oil inlet pipe 2, some impurities in the oil can be filtered by the metal filter screen frame 51. This ensures that the lubricating oil is clean when it enters the heater 1, and prevents impurities in the lubricating oil from entering the heater 1 and causing unnecessary blockage and damage.

[0027] Four fixing structures 6 are provided on the right side surface of the transition cavity 3.

[0028] In this embodiment, preferably, the fixing structure 6 includes a threaded base rod 61 welded and fixed to the right side surface of the transition cavity 3, and a circular base 62, a limiting pressure plate 63, and a nut 64 sleeved on the surface of the threaded base rod 61. The circular base 62 and the limiting pressure plate 63 are welded and fixed, and the nut 64 is threadedly connected to the threaded base rod 61. The surface of the filter frame end plate 5 is provided with a pressure plate groove 66 corresponding to the limiting pressure plate 63. The end of the limiting pressure plate 63 is embedded into the pressure plate groove 66 and presses the filter frame end plate 5 tightly, ensuring the installation stability of the filter frame end plate 5 during daily use. If the metal filter needs to be removed later... When the screen frame 51 is removed for replacement or cleaning, simply rotate the nut 64 counterclockwise so that the limiting pressure plate 63 no longer presses the filter frame end plate 5. Then move the limiting pressure plate 63 and the circular base 62 toward the end of the threaded base rod 61, so that the end of the limiting pressure plate 63 moves out of the pressure plate slot 66. At this time, the limiting pressure plate 63 can be rotated so that the end of the limiting pressure plate 63 no longer obstructs the filter frame end plate 5, thus quickly releasing the limiting of the filter frame end plate 5. Then move the filter frame end plate 5 to the side so that the metal filter screen frame 51 can be easily pulled out, which facilitates subsequent maintenance.

[0029] In this embodiment, preferably, an anti-slip block 65 is welded and fixed to the end surface of the threaded base rod 61, and the nut 64 is located between the anti-slip block 65 and the limiting pressure plate 63. Under the obstruction of the anti-slip block 65, the nut 64 will not slide directly from the end of the threaded base rod 61 when it is subsequently rotated and loosened.

[0030] In this embodiment, preferably, a rectangular socket 31 for inserting a metal filter frame 51 is provided on the right side surface of the transition cavity 3, and a sealing structure is provided inside the rectangular socket 31.

[0031] In this embodiment, preferably, the sealing structure includes a U-shaped side groove 32 formed on the inner wall of the rectangular socket 31, a U-shaped side gasket 33 embedded in the U-shaped side groove 32, and an integrated U-shaped inner sealing gasket 34 disposed on the inner wall of the U-shaped side gasket 33. Both the U-shaped side gasket 33 and the U-shaped inner sealing gasket 34 are made of fluororubber material, which can undergo elastic deformation when compressed. The U-shaped inner sealing gasket 34 is pressed into contact with the surface of the metal filter frame 51, which can effectively seal the rectangular socket 31 and prevent lubricating oil from leaking from the rectangular socket 31.

[0032] In this embodiment, preferably, the surface of the metal filter frame 51 is provided with an integral U-shaped protrusion 52, and the inner wall of the U-shaped inner sealing gasket 34 is provided with a U-shaped groove 35 corresponding to the U-shaped protrusion 52. The U-shaped protrusion 52 is squeezed into the U-shaped groove 35, which can further improve the sealing effect.

[0033] Example 2

[0034] Please see Figures 1 to 5 This is the second embodiment of the present invention. This embodiment is based on the previous embodiment, except that a positioning support block 36 is fixed on the left inner wall of the transition cavity 3, and a positioning support groove 53 corresponding to the positioning support block 36 is opened on the left surface of the metal filter frame 51. The positioning support block 36 is inserted into the positioning support groove 53, and the positioning support block 36 can effectively support the left end of the metal filter frame 51 to ensure the installation stability of the metal filter frame 51.

[0035] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lubricating oil heating device, characterized in that: include Heater (1), heating rod (7) installed inside heater (1), oil outlet pipe (4) installed at the bottom of heater (1), and oil inlet pipe (2) set at the top of heater (1); A transition cavity (3) is provided between the oil inlet pipe (2) and the heater (1). A filter frame end plate (5) is installed on the right side surface of the transition cavity (3). A metal filter screen frame (51) is fixed on the left side surface of the filter frame end plate (5), and the metal filter screen frame (51) is inserted into the inside of the transition cavity (3). The right side surface of the transition cavity (3) is provided with four fixed structures (6).

2. The lubricating oil heating device according to claim 1, characterized in that: The fixing structure (6) includes a threaded base rod (61) fixed on the right side surface of the transition cavity (3) and a circular base (62), a limiting pressure plate (63) and a nut (64) sleeved on the surface of the threaded base rod (61). The circular base (62) and the limiting pressure plate (63) are welded and fixed. The nut (64) is threadedly connected to the threaded base rod (61). The surface of the filter frame end plate (5) is provided with a pressure plate slot (66) corresponding to the limiting pressure plate (63). The end of the limiting pressure plate (63) is embedded in the pressure plate slot (66) and presses the filter frame end plate (5) tightly.

3. The lubricating oil heating device according to claim 2, characterized in that: The end surface of the threaded base rod (61) is also fixed with an anti-detachment end block (65), and the nut (64) is located between the anti-detachment end block (65) and the limiting pressure plate (63).

4. The lubricating oil heating device according to claim 1, characterized in that: The right side surface of the transition cavity (3) is provided with a rectangular socket (31) for inserting a metal filter frame (51), and the rectangular socket (31) is provided with a sealing structure.

5. The lubricating oil heating device according to claim 4, characterized in that: The sealing structure includes a U-shaped side groove (32) opened on the inner wall of the rectangular inlet (31), a U-shaped side pad (33) embedded in the U-shaped side groove (32), and an integrated U-shaped inner sealing gasket (34) set on the inner wall of the U-shaped side pad (33). The U-shaped inner sealing gasket (34) is in contact with the surface of the metal filter frame (51) by compression.

6. The lubricating oil heating device according to claim 5, characterized in that: The surface of the metal filter frame (51) is provided with an integral U-shaped protrusion (52), and the inner wall of the U-shaped inner sealing gasket (34) is provided with a U-shaped groove (35) corresponding to the U-shaped protrusion (52), and the U-shaped protrusion (52) is squeezed into the U-shaped groove (35).

7. The lubricating oil heating device according to claim 1, characterized in that: The left inner wall of the transition cavity (3) is fixed with a positioning support block (36), and the left surface of the metal filter frame (51) is provided with a positioning support groove (53) corresponding to the positioning support block (36), and the positioning support block (36) is inserted into the positioning support groove (53).

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