Transfer case with heat dissipation system
By introducing a combination filtration structure of replaceable filter element and strong magnet in the transfer case, the problem of impurities and metal shavings in gear oil is solved, achieving effective filtration and heat dissipation of gear oil, and improving the reliability and durability of the transfer case.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-09
- Publication Date
- 2026-04-10
AI Technical Summary
The existing transfer case lacks gear oil filtration, which causes metal shavings to mix into the gear oil, affecting the service life and heat dissipation and lubrication effect of the gear oil, and accelerating the deterioration of the gear oil under high temperature environment.
A transfer case with a heat dissipation system was designed, which adopts a combination filtration structure of replaceable filter element and strong magnet. Impurities are adsorbed by filter screen and magnet, and the heat dissipation effect is enhanced by heat dissipation fins and fan. The convenient installation structure ensures quick replacement of filter element.
It effectively filters impurities and metal shavings in gear oil, extends gear oil life, reduces mechanical wear, improves the reliability and durability of the transfer case, and enhances heat dissipation efficiency to ensure stable operation of the device in high-temperature environments.
Smart Images

Figure CN224107647U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile parts, and specifically relates to a transfer case with a heat dissipation system. BACKGROUND
[0002] Through the search, the patent with Chinese patent publication No. CN214331437U discloses a transfer case with a heat dissipation system, an oil filling hole, an oil drain hole and a machining positioning hole are arranged on the transfer case shell; a radiator and an oil pump are installed on the transfer case shell, the transfer case, the oil pump, the radiator and the transfer case are sequentially communicated through pipelines to form a loop, when the technical scheme is used, the circulating gear oil in the transfer case is not filtered, and the gear and the bearing in the transfer case will generate tiny metal swarf when working, these metal particles will mix into the gear oil, these particles will accelerate the deterioration and aging of the gear oil, and the gear oil will also slightly deteriorate under high temperature environment, the gear oil that has not been filtered and has been circulating for a long time will affect the heat dissipation and lubrication effect, resulting in the performance decline of the parts, therefore, the transfer case with a heat dissipation system is provided to solve the above problems. SUMMARY
[0003] The utility model discloses a transfer case with a heat dissipation system, which effectively filters impurities and metal swarf in the gear oil, and the filter element can be easily assembled and disassembled, thereby solving the problems in the background art.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a transfer case with a heat dissipation system, comprising: a main shell, an input shaft and two groups of connecting shafts are arranged on the inner side of the main shell, an oil pump is fixedly connected to the side surface of the main shell, heat dissipation fins are fixedly connected to the upper side of the main shell, heat dissipation fans are fixedly connected to the two ends of the heat dissipation fins, a first pipeline is fixedly connected to the liquid outlet end of the oil pump, a second pipeline is fixedly connected to the liquid inlet end of the oil pump, a third pipeline is fixedly connected to the liquid inlet end of the heat dissipation fins, a fourth pipeline is fixedly connected to the liquid outlet end of the main shell, and a filter box shell is fixedly connected to the lower side of the main shell.
[0005] The filter box shell comprises a fixed seat, a rotating door is rotatably connected to the inner side of the fixed seat, a top block slot is formed in the inner side of the fixed seat, inner clamping ring is fixedly connected to the inner side of the fixed seat in a symmetrical manner, a top block slot is formed in the side surface of the rotating door, a push piece slot is formed in the side surface of the top block slot and penetrates to the outer side of the rotating door, a locking top block that is matched with the top block slot is arranged in the inner side of the top block slot, a movable push piece that slides in the push piece slot is fixedly connected to the side surface of the locking top block, and a first supporting spring is fixedly connected to the side surface of the locking top block.
[0006] As a further scheme of the utility model: a plurality of groups of strong magnets are fixedly connected to the inner side of the fixed seat, and a replaceable filter core is arranged on the inner side of the fixed seat.
[0007] As a further scheme of the utility model: the replaceable filter core comprises a filter core shell body, two groups of filter screens are fixedly connected to the inner side of the filter core shell body, three groups of guide sliding grooves are formed in the side of the filter core shell body, a sliding rod is slidably connected to the inner side of the guide sliding groove, a moving head is fixedly connected to the other end of the sliding rod, a second supporting spring is arranged on the outer side of the sliding rod, a folding hose in communication with the inner side of the filter core shell body is fixedly connected to the inner side of the moving head, and rubber sealing rings are fixedly connected to the inner side of the filter core shell body and the inner side of the moving head.
[0008] As a further scheme of the utility model: one end of the connecting shaft is in spline connection with the input shaft, the other end is connected with the output shaft of the oil pump, and the oil pump is a hydraulic gear pump.
[0009] As a further scheme of the utility model: the first pipeline is in communication between the liquid outlet end of the oil pump and the liquid inlet end of the main shell body, the second pipeline is in communication between the liquid inlet end of the oil pump and the liquid outlet end of the heat dissipation fin, the third pipeline is in communication between the liquid inlet end of the heat dissipation fin and the liquid outlet end of the filter box shell body, and the fourth pipeline is in communication between the liquid outlet end of the main shell body and the liquid inlet end of the filter box shell body.
[0010] As a further scheme of the utility model: the other end of the first supporting spring is fixedly connected in the push piece groove, the first supporting spring is compressed by pushing the moving push piece, and the locking top block can be completely arranged in the top block groove.
[0011] As a further scheme of the utility model: the rubber sealing ring is matched with the inner clamping groove.
[0012] Compared with the prior art, the utility model has the beneficial effects that:
[0013] 1. In the utility model, the replaceable filter core is arranged, impurities and metal swarf in the gear oil are effectively filtered under the double action of the filter screen and the strong magnet, the service life of the gear oil is prolonged, the abrasion of other mechanical parts is reduced, and the reliability and durability of the transfer box are improved.
[0014] 2. In the utility model, the second supporting spring and the rubber sealing ring are arranged in the replaceable filter core, the filter core is easily mounted and dismounted, the mounting mode is fast and convenient, the mounting process is simplified, the close fit and good sealing between the filter core and the fixed seat are ensured, and the oil leakage phenomenon is avoided.
[0015] 3. The utility model discloses a heat dissipation fin and the heat dissipation fan of both ends are fixedly connected above the main casing, effectively enhance the heat dissipation effect of gear oil, and the heat dissipation fin increases the heat exchange area, and the heat dissipation fan accelerates the air flow, thereby improve the heat dissipation efficiency, ensure the stable operation of the transfer case under high temperature environment. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the overall structure schematic diagram of the utility model, and
[0017] Figure 2 It is the structure schematic diagram of the second visual angle of the utility model,
[0018] Figure 3 It is the structure schematic diagram of the filter box casing in the utility model,
[0019] Figure 4 It is the structure schematic diagram of the inner clamping ring in the utility model,
[0020] Figure 5 It is the structure schematic diagram of the replaceable filter core in the utility model,
[0021] Figure 6 It is the structure schematic diagram of the slide bar in the utility model,
[0022] Figure 7 It is the structure schematic diagram of A in the utility model.
[0023] In the drawing: 1, main casing, 2, input shaft, 3, connecting shaft, 4, oil pump, 5, heat dissipation fin, 6, heat dissipation fan, 7, first pipeline, 8, second pipeline, 9, third pipeline, 10, fourth pipeline, 11, filter box casing, 111, fixed seat, 112, rotating door, 113, top block clamping groove, 114, inner clamping ring, 115, top block slot, 116, push piece slot, 117, locking top block, 118, moving push piece, 119, first support spring, 12, strong magnet, 13, replaceable filter core, 131, filter core outer casing, 132, filter screen, 133, guide sliding slot, 134, slide bar, 135, moving head, 136, second support spring, 137, folding hose, 138, rubber sealing ring. DETAILED DESCRIPTION
[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of protection of the utility model.
[0025] In the description of the utility model, it is necessary to explain that the orientation or positional relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or positional relation based on the drawing shown, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. In the description of the utility model, it is necessary to explain that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "setting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. The embodiments will be described below according to the overall structure of the utility model.
[0026] Referring to Figures 1 to 7 In the utility model embodiment, a transfer case with a heat dissipation system, including: main casing 1, the inside of main casing 1 is provided with input shaft 2 and two groups of connecting shaft 3, main casing 1 side is fixedly connected with oil pump 4, main casing 1 top is fixedly connected with heat dissipation fin 5, heat dissipation fin 5 both ends are fixedly connected with heat dissipation fan 6, the liquid outlet end of oil pump 4 is fixedly connected with first pipeline 7, the liquid inlet end of oil pump 4 is fixedly connected with second pipeline 8, the liquid inlet end of heat dissipation fin 5 is fixedly connected with third pipeline 9, the liquid outlet end of main casing 1 is fixedly connected with fourth pipeline 10, main casing 1 below is fixedly connected with filter box casing 11, one end of connecting shaft 3 is spline connected with input shaft 2, the other end is connected with the output shaft of oil pump 4, oil pump 4 is hydraulic gear pump, first pipeline 7 is communicated the liquid outlet end of oil pump 4 and the liquid inlet end of main casing 1, second pipeline 8 is communicated the liquid inlet end of oil pump 4 and the liquid outlet end of heat dissipation fin 5, third pipeline 9 is communicated the liquid inlet end of heat dissipation fin 5 and the liquid outlet end of filter box casing 11, fourth pipeline 10 is communicated the liquid outlet end of main casing 1 and the liquid inlet end of filter box casing 11;
[0027] The filter box shell 11 comprises a fixed seat 111, a rotating door 112 is rotatably connected to the inner side of the fixed seat 111, a top block clamping groove 113 is formed in the inner side of the fixed seat 111, a symmetrical inner clamping ring 114 is fixedly connected to the inner side of the fixed seat 111, a top block groove 115 is formed in the side surface of the rotating door 112, a push piece groove 116 penetrating to the outer side of the rotating door 112 is formed in the side surface of the top block groove 115, a locking top block 117 matched with the top block clamping groove 113 is arranged in the inner side of the top block groove 115, a movable push piece 118 sliding in the push piece groove 116 is fixedly connected to the side surface of the locking top block 117, a first supporting spring 119 is fixedly connected to the side surface of the locking top block 117, and the other end of the first supporting spring 119 is fixedly connected in the push piece groove 116. The first supporting spring 119 is compressed by pushing the movable push piece 118, and the locking top block 117 can be completely accommodated in the inside of the top block groove 115.
[0028] By adopting the above scheme: through the design of the first supporting spring 119 and the locking top block 117, the inner side of the filter box shell 11 can be conveniently opened or closed, and internal maintenance and replacement of parts are facilitated.
[0029] Referring to Figure 3 , a plurality of groups of strong magnets 12 are fixedly connected to the inner side of the fixed seat 111, and a replaceable filter core 13 is arranged on the inner side of the fixed seat 111.
[0030] By adopting the above scheme: through the design of the strong magnets 12, when the gear oil containing metal abrasion is passing through the inside of the replaceable filter core 13, it can be attracted by the strong magnets 12 and stay in the inside of the replaceable filter core 13, and be taken away and cleaned when the replaceable filter core 13 is replaced and cleaned, thereby reducing the abrasion of other mechanical parts.
[0031] Referring to Figure 5 and Figure 6 , the replaceable filter core 13 comprises a filter core outer shell 131, two groups of filter screens 132 are fixedly connected to the inner side of the filter core outer shell 131, three groups of guide sliding grooves 133 are formed in the side surface of the filter core outer shell 131, a sliding rod 134 is slidingly connected to the inner side of the guide sliding groove 133, a moving head 135 is fixedly connected to the other end of the sliding rod 134, a second supporting spring 136 is sleeved on the outer side of the sliding rod 134, a folding hose 137 in communication with the inner side of the filter core outer shell 131 is fixedly connected to the inner side of the moving head 135, rubber sealing rings 138 are fixedly connected to the inner side of the filter core outer shell 131 and the inner side of the moving head 135, and the rubber sealing rings 138 are matched with the inner clamping ring 114.
[0032] Adopt the above scheme: through the design of the second support spring 136 and the rubber sealing ring 138, the replaceable filter element 13 can be easily installed and removed, when the replaceable filter element 13 needs to be installed, only need to press the moving head 135, compress the second support spring 136, and the two groups of rubber sealing rings 138 are aligned with the two groups of inner clamping snap rings 114, and the press is released, and the replaceable filter element 13 can be automatically locked, and vice versa, the replaceable filter element 13 can be quickly removed, and the two groups of filter screens 132 can effectively filter oil.
[0033] The working principle of the utility model is: the main casing 1 of the device is provided with an input shaft 2 and two groups of connecting shafts 3, wherein the input shaft 2 is connected with one end of the connecting shaft 3 through spline connection, and the other end of the connecting shaft 3 is connected with the output shaft of the oil pump 4 (hydraulic gear pump), so that when the input shaft 2 rotates, the oil pump 4 starts to work;
[0034] The liquid outlet of the oil pump 4 is connected with the liquid inlet of the main casing 1 through the first pipeline 7, forming a circulating start, at the same time, the liquid inlet of the oil pump 4 is connected with the liquid outlet of the heat dissipation fin 5 through the second pipeline 8, for receiving the gear oil after heat dissipation;
[0035] The heat dissipation fin 5 is provided with a heat dissipation fan 6 above, for enhancing the heat dissipation effect, and the liquid inlet of the heat dissipation fin 5 is connected with the liquid outlet of the filter box casing 11 through the third pipeline 9, for receiving the filtered gear oil;
[0036] The liquid outlet of the main casing 1 is connected with the liquid inlet of the filter box casing 11 through the fourth pipeline 10, forming a complete circulating loop;
[0037] When the transfer case works, the input shaft 2 rotates, drives the oil pump 4 to extract the gear oil from the main casing 1, and sends back to the main casing 1 through the first pipeline 7, to provide lubrication for the gear and other parts in the transfer case, with the circulation of the gear oil, part of the gear oil will flow into the replaceable filter element 13 in the filter box casing 11 through the fourth pipeline 10, for filtering treatment, the filtered gear oil flows into the heat dissipation fin 5 through the third pipeline 9, the heat dissipation fan 6 starts, accelerates the heat dissipation process of the gear oil, and the gear oil after heat dissipation flows back to the liquid inlet of the oil pump 4 through the second pipeline 8, to complete a cycle;
[0038] The filter box shell 11 is composed of a fixed seat 111 and a rotating door 112, the rotating door 112 can be conveniently opened or closed through the design of the locking top block 117 and the first supporting spring 119, when the rotating door 112 needs to be opened, only the first supporting spring 119 is compressed by pulling the moving pull piece 118, the locking top block 117 is separated from the top block clamping groove 113, so that the rotating door 112 can be opened, when being closed, only the rotating door 112 is pushed back to the original position, the locking top block 117 is automatically clamped into the top block clamping groove 113 under the action of the first supporting spring 119, and locking is realized;
[0039] When the gear oil flows into the filter box shell 11, the gear oil is filtered through the filter screen 132 in the replaceable filter core 13, meanwhile, the strong magnet 12 can adsorb the metal abrasion in the gear oil, and prevent the metal abrasion from entering the transfer box and causing abrasion, when the replaceable filter core 13 needs to be replaced, only the second supporting spring 136 is compressed by pressing and moving the head 135 downwards, then the filter core outer shell 131 is pulled out from the fixed seat 111, when the new replaceable filter core 13 is installed, only the filter core outer shell 131 is aligned with the entrance of the fixed seat 111, and the moving head 135 is loosened, under the action of the second supporting spring 136, the moving head 135 is automatically reset, meanwhile, the rubber sealing ring 138 is tightly attached to the inner clamping snap ring 114, sealing and fixing are realized.
[0040] The above is only the preferred specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, and all of them should be covered in the protection scope of the present application.
Claims
1. A transfer case having a heat dissipation system, characterized by, The utility model relates to a kind of oil filter, including: Main shell (1), input shaft (2) and two groups of connecting shaft (3) are arranged inside the main shell (1), the main shell (1) side is fixedly connected with oil pump (4), the main shell (1) top is fixedly connected with radiating fin (5), the radiating fin (5) both ends are fixedly connected with radiating fan (6), the liquid outlet of the oil pump (4) is fixedly connected with first pipeline (7), the liquid inlet of the oil pump (4) is fixedly connected with second pipeline (8), the liquid inlet of the radiating fin (5) is fixedly connected with third pipeline (9), the liquid outlet of the main shell (1) is fixedly connected with fourth pipeline (10), the main shell (1) below is fixedly connected with filter box shell (11); The filter box shell (11) includes fixed seat (111), the fixed seat (111) is rotatably connected with rotating door (112) inside, the fixed seat (111) is internally provided with top block clamping groove (113), the fixed seat (111) is fixedly connected with internal clamping groove snap ring (114) inside symmetrically, the rotating door (112) side is provided with top block slot (115), the top block slot (115) side is provided with the through to the rotating door (112) outside's of the piece slot (116), the top block slot (115) inside is provided with the locking top block (117) that is compatible with top block clamping groove (113), the locking top block (117) side is fixedly connected with the mobile piece (118) that slides in piece slot (116), the locking top block (117) side is fixedly connected with first support spring (119).
2. The transfer case with heat dissipation system of claim 1, wherein, The fixed seat (111) is fixedly connected with several groups of strong magnet (12) inside, the fixed seat (111) is provided with replaceable filter core (13) inside.
3. The transfer case with heat dissipation system of claim 2, wherein, The replaceable filter core (13) includes filter core outer shell (131), the filter core outer shell (131) is fixedly connected with two groups of filter screen (132) inside, the filter core outer shell (131) side is provided with three groups of guide sliding slot (133), the guide sliding slot (133) is slidably connected with slide rod (134) inside, the other end of the slide rod (134) is fixedly connected with moving head (135), the slide rod (134) outside is equipped with second support spring (136), the moving head (135) is fixedly connected with folding hose (137) inside, the filter core outer shell (131) inside and moving head (135) inside are all fixedly connected with rubber sealing ring (138).
4. The transfer case with heat dissipation system of claim 1, wherein, One end of the connecting shaft (3) is connected with the input shaft (2) spline, the other end is connected with the output shaft of the oil pump (4), and the oil pump (4) is a hydraulic gear pump.
5. The transfer case with heat dissipation system of claim 1, wherein, The first pipeline (7) connects the liquid outlet of the oil pump (4) with the liquid inlet of the main shell (1), the second pipeline (8) connects the liquid inlet of the oil pump (4) with the liquid outlet of the radiating fin (5), the third pipeline (9) connects the liquid inlet of the radiating fin (5) with the liquid outlet of the filter box shell (11), and the fourth pipeline (10) connects the liquid outlet of the main shell (1) with the liquid inlet of the filter box shell (11).
6. The transfer case with heat dissipation system of claim 1, wherein, The other end of the first supporting spring (119) is fixedly connected in the shifting piece slot (116), and the first supporting spring (119) is compressed by shifting the moving shifting piece (118), so that the locking top block (117) can be completely received in the top block slot (115).
7. The transfer case with heat dissipation system of claim 3, wherein, The rubber sealing ring (138) is matched with the inner clamping snap ring (114).
Citation Information
Patent Citations
Transfer case with heat dissipation system
CN214331437U