Heat dissipation structure of waterproof gearbox

By using a combination of O-rings, screw glue, and potting compound in the waterproof gearbox, the problem of loose connection between the outer shell and the gearbox is solved, achieving higher heat dissipation stability and easier disassembly.

CN224201094UActive Publication Date: 2026-05-05ZHONGSHAN YISHANG GEAR TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGSHAN YISHANG GEAR TECH CO LTD
Filing Date
2025-04-17
Publication Date
2026-05-05

AI Technical Summary

Technical Problem

In existing waterproof gearboxes, the connection between the outer shell and the gearbox is not tight, resulting in poor heat dissipation stability and inconvenience in disassembly and maintenance.

Method used

It adopts a combination of O-ring seals, screw glue, and potting compound to achieve a sealing effect by compressing the O-ring seals, and improves the sealing performance and ease of disassembly through the combination of screw glue and external thread layer.

Benefits of technology

It improves the tightness and sealing of the connection between the housing and the gearbox, enhances heat dissipation stability, and facilitates the disassembly and maintenance of the rear seat and housing.

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Abstract

The utility model belongs to the technical field of gear boxes, and particularly relates to a heat dissipation structure of a waterproof gear box, which comprises a shell and further comprises a gear box body fixedly arranged between the two sides in the shell, O-shaped sealing rings are arranged at the two ends of the gear box body at equal intervals, a feeding hole is fixedly formed in the bottom of the gear box body, and the feeding hole is communicated with the shell. Cooling liquid is filled between the shell and the gear box body, the rear seat is installed on one side of the shell in a penetrating mode, the gear box body is connected and installed through the shell, then the O-shaped sealing ring is connected through the gear box body, and then a feeding hole is reserved between the shell and the gear box body so that the cooling liquid can be filled. The problem of temperature rise after long-time operation of the gear box body is solved, the operation time of the gear box body is prolonged, the service life of the gear box body is prolonged, then the sealing effect is achieved through the effect of the O-shaped sealing ring, internal parts are assembled, the O-shaped sealing ring is extruded, and therefore the sealing performance between the parts and the waterproof performance of the gear box are improved.
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Description

Technical Field

[0001] This utility model belongs to the field of gearbox technology, and in particular relates to a heat dissipation structure for a waterproof gearbox. Background Technology

[0002] The heat dissipation design of waterproof gearboxes usually needs to consider their sealing performance. Possible heat dissipation structures include: outer shell heat dissipation design, which increases the heat dissipation area of ​​the outer shell and uses heat sinks and thermally conductive materials; internal structure design, which reduces heat generation and assists in heat dissipation by optimizing gear arrangement and lubrication system. However, when dissipating heat from the gearbox, the heat dissipation stability of the gearbox heat dissipation structure is reduced due to the insufficient tightness of the connection between the outer shell and the gearbox. Therefore, a heat dissipation structure for waterproof gearboxes is proposed.

[0003] For example, Chinese Patent CN208138454U discloses a gearbox heat dissipation system and a gearbox having the same, relating to the field of gearbox heat dissipation technology. The gearbox heat dissipation system includes a heat collection element, a heat conduction system, and a heat dissipation device. The heat collection element is disposed outside the gearbox body and is used to collect heat generated inside the gearbox body. The heat conduction system connects the high-temperature area of ​​the gearbox body to the heat collection element, and the heat dissipation device dissipates heat from the heat collection element. This utility model also proposes a gearbox, which includes a gearbox body and the gearbox heat dissipation system, with the heat dissipation system fixed to the gearbox body.

[0004] The existing technical documents have the following problems:

[0005] Existing technical documents have some drawbacks in use, such as: when cooling the gearbox, the connection between the outer casing and the gearbox is not tight enough, which reduces the heat dissipation stability of the gearbox heat dissipation structure; and the use of screws to fix the rear seat to the outer casing makes it inconvenient to disassemble the heat dissipation structure, reducing the convenience of disassembly and maintenance. Therefore, we propose a waterproof gearbox heat dissipation structure. Utility Model Content

[0006] The purpose of this utility model is to address the aforementioned technical problems by providing a heat dissipation structure for a waterproof gearbox, thereby improving the tightness of the connection between the outer casing and the gearbox, and facilitating the disassembly and maintenance of the outer casing and the rear seat.

[0007] In view of this, the present invention provides a heat dissipation structure for a waterproof gearbox, including an outer shell, and further comprising: a gearbox body fixedly installed between the two sides inside the outer shell; O-rings equidistantly installed at both ends of the gearbox body; a filling hole fixedly provided at the bottom of the gearbox body; coolant filled between the outer shell and the gearbox body; a rear seat installed through one side of the outer shell; an external thread layer fixedly provided on the surface of the rear seat; screw glue fixedly provided on the surface of the external thread layer; an outer sleeve installed through one side of the rear seat; potting compound filled between the outer sleeve and the rear seat; a closing cover fixedly installed on the other side of the outer shell; and a guide rod installed through the other side of the closing cover.

[0008] Based on the above structure, the O-ring seals are used to achieve a sealing effect during the assembly of internal parts by squeezing the O-ring seals. The combined use of screw glue, external thread layer and potting compound improves the ease of connection between the rear seat and the outer shell and improves the sealing performance of the connection.

[0009] Preferably, an internal thread layer is fixedly provided on one side of the inner wall of the outer shell. The internal thread layer is made of PVC material and is used to facilitate the connection between the outer shell and the rear seat.

[0010] Preferably, a wiring harness is installed through one side of the outer casing, and the outer casing is made of rubber, so that the wiring harness can be used to facilitate the power supply to the gearbox.

[0011] Preferably, a fixing bolt is installed through the other side of the closing cover, and a cross groove is fixedly provided on the other side of the fixing bolt, so that the closing cover can be closed conveniently by using the fixing bolt.

[0012] Preferably, a fixing seat is fixedly installed between the fixing bolts. The fixing bolts are made of stainless steel, and the fixing seat facilitates the connection between the guide rod and the closing cover.

[0013] Preferably, the guide rod is provided with limiting grooves at both ends and a connecting threaded hole is provided on the other side of the guide rod, so that the limiting grooves can be used to facilitate the connection between the guide rod and external equipment.

[0014] Preferably, a sealing ring is fixedly installed on one side of the limiting groove to increase the tightness of the connection between the guide rod and the fixed seat.

[0015] The beneficial effects of this utility model are:

[0016] 1. A heat dissipation structure for a waterproof gearbox, comprising connecting and installing the gearbox body through an outer shell, then connecting an O-ring seal through the gearbox body, and leaving a filling hole between the outer shell and the gearbox body to fill with coolant, thereby solving the problem of temperature rise after long-term operation of the gearbox body, extending the operating time and service life of the gearbox body, and then using the O-ring seal to achieve a sealing effect by compressing the O-ring seal during the assembly of internal parts, thereby improving the sealing performance between parts and the waterproof performance of the gearbox.

[0017] 2. A heat dissipation structure for a waterproof gearbox, comprising setting an external thread layer through a rear seat, then connecting the external thread layer and the internal thread layer and applying screw glue, then installing the outer casing through the rear seat, and then filling the gap between the outer casing and the rear seat with potting compound. The combined use of screw glue, external thread layer and potting compound improves the ease of connection between the rear seat and the outer casing and improves the sealing performance of the connection. Attached Figure Description

[0018] Figure 1 This is a perspective view of the entire utility model;

[0019] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 3 This is a partial structural diagram of the rear seat in this utility model;

[0021] Figure 4 This is a partial structural diagram of the guide rod in this utility model;

[0022] Figure 5 This is a partial perspective view of the closed cover in this utility model.

[0023] The markings in the diagram are as follows:

[0024] 1. Outer shell; 101. Internal thread layer; 102. O-ring seal; 103. Feed hole; 104. Gearbox body; 105. Coolant; 2. Closing cover; 201. Fixing bolt; 202. Cross groove; 203. Fixing base; 3. Guide rod; 301. Limiting groove; 302. Sealing ring; 303. Connecting threaded hole; 4. Rear seat; 401. External thread layer; 402. Encapsulating adhesive; 403. Wiring harness; 404. Thread glue; 405. Outer jacket. Detailed Implementation

[0025] 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.

[0026] This application discloses a heat dissipation structure for a waterproof gearbox. Please refer to [link / reference]. Figures 1-5 The device includes an outer casing 1, and further includes: a gearbox body 104 fixedly installed between the two sides inside the outer casing 1; O-ring seals 102 equidistantly installed at both ends of the gearbox body 104; a feeding hole 103 fixedly provided at the bottom of the gearbox body 104; coolant 105 filled between the outer casing 1 and the gearbox body 104; a rear seat 4 installed through one side of the outer casing 1; an external thread layer 401 fixedly provided on the surface of the rear seat 4; thread glue 404 fixedly provided on the surface of the external thread layer 401; an outer sleeve 405 installed through one side of the rear seat 4; potting compound 402 filled between the outer sleeve 405 and the rear seat 4; a closing cover 2 fixedly installed on the other side of the outer casing 1; and a guide rod 3 installed through the other side of the closing cover 2.

[0027] Based on the above structure, the gearbox body 104 is connected and installed through the outer shell 1. Then, the O-ring seal 102 is connected through the gearbox body 104. A filling hole 103 is provided between the outer shell 1 and the gearbox body 104 to fill with coolant 105, solving the temperature rise problem of the gearbox body 104 after long-term operation and extending the operating time and service life of the gearbox body 104. Furthermore, through the action of the O-ring seal 102, a sealing effect is achieved by compressing the O-ring seal 102 during the assembly of internal parts. This improves the sealing between parts and the waterproofness of the gearbox. The rear seat 4 is equipped with an external thread layer 401, and after the external thread layer 401 is connected to the internal thread layer 101, screw glue 404 is applied. Then, the outer sleeve 405 is installed through the rear seat 4, and the gap between the outer sleeve 405 and the rear seat 4 is filled with potting compound 402. The combined use of screw glue 404, external thread layer 401 and potting compound 402 improves the ease of connection between the rear seat 4 and the outer shell 1 and improves the sealing of the connection.

[0028] In one embodiment, an internal thread layer 101 is fixedly provided on one side of the inner wall of the outer casing 1, and the internal thread layer 101 is made of PVC material.

[0029] Specifically, the inner thread layer 101 is set through the outer shell 1.

[0030] In this embodiment, the internal thread layer 101 is used to facilitate the connection between the outer shell 1 and the rear seat 4.

[0031] In one embodiment, a wire harness 403 is installed through one side of the outer jacket 405, and the outer jacket 405 is made of rubber.

[0032] Specifically, the wire harness 403 is installed through the outer casing 405.

[0033] In this embodiment, the outer jacket 405 is used to protect the wire harness 403, and then the wire harness 403 is used to facilitate the power supply to the gearbox.

[0034] In one embodiment, a fixing bolt 201 is installed through the other side of the closed cover 2, and a cross groove 202 is fixedly provided on the other side of the fixing bolt 201.

[0035] Specifically, the closing cover 2 is installed using the fixing bolt 201, and then the cross groove 202 is set using the fixing bolt 201.

[0036] In this embodiment, the fixing bolt 201 is used to increase the stability of the installation of the closed cover 2, and then the cross groove 202 is used to facilitate the tightening of the fixing bolt 201.

[0037] In one embodiment, a fixing seat 203 is fixedly installed between the fixing bolts 201, and the fixing bolts 201 are made of stainless steel.

[0038] Specifically, the fixing seat 203 is installed by closing the cover 2.

[0039] In this embodiment, the fixed base 203 is used to facilitate the limiting installation of the guide rod 3.

[0040] In one embodiment, limit grooves 301 are fixedly provided at both ends of the guide rod 3, and a connecting threaded hole 303 is fixedly provided on the other side of the guide rod 3.

[0041] Specifically, the guide rod 3 is used to set the limiting groove 301 and the connecting threaded hole 303.

[0042] In this embodiment, the limiting groove 301 is used to prevent slippage when connecting to external devices, and the connecting threaded hole 303 is used to facilitate connection to external drill bit devices.

[0043] In one embodiment, a sealing ring 302 is fixedly installed on one side of the limiting groove 301.

[0044] Specifically, the sealing ring 302 is installed via the guide rod 3.

[0045] In this embodiment, the sealing ring 302 is used to improve the tightness of the connection between the guide rod 3 and the fixed seat 203.

[0046] In this embodiment, the heat dissipation structure of a waterproof gearbox involves the following steps: First, the closing cover 2 is installed using the fixing bolt 201. Then, the cross groove 202 is set using the fixing bolt 201. Next, the fixing seat 203 is installed using the closing cover 2. Then, the limiting groove 301 and the connecting threaded hole 303 are set using the guide rod 3. Then, the sealing ring 302 is installed using the guide rod 3. Finally, the inner thread layer 101 is set using the outer shell 1. Finally, the gearbox body 104 is connected and installed using the outer shell 1. The O-ring 102 is connected through the gearbox body 104. A filling hole 103 is left between the outer shell 1 and the gearbox body 104 to fill the coolant 105. The outer thread layer 401 is set through the rear seat 4. After the outer thread layer 401 is connected to the inner thread layer 101, screw glue 404 is applied. Then, the outer sleeve 405 is installed through the rear seat 4. The wiring harness 403 is installed through the outer sleeve 405. Finally, the gap between the outer sleeve 405 and the rear seat 4 is filled with potting compound 402.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A heat dissipation structure for a waterproof gearbox, comprising a housing (1), characterized in that, Also includes: A gearbox body (104) is fixedly installed between the two sides inside the outer shell (1). O-rings (102) are installed at equal intervals at both ends of the gearbox body (104). A feeding hole (103) is fixedly provided at the bottom of the gearbox body (104). Coolant (105) is filled between the outer shell (1) and the gearbox body (104). A rear seat (4) is installed through one side of the outer shell (1). An external thread layer (401) is fixedly provided on the surface of the rear seat (4). Thread glue (404) is fixedly provided on the surface of the external thread layer (401). An outer sleeve (405) is installed through one side of the rear seat (4). Potting compound (402) is filled between the outer sleeve (405) and the rear seat (4). A closing cover (2) is fixedly installed on the other side of the outer shell (1). A guide rod (3) is installed through the other side of the closing cover (2).

2. The heat dissipation structure of a waterproof gearbox according to claim 1, characterized in that: An internal thread layer (101) is fixedly provided on one side of the inner wall of the outer shell (1), and the internal thread layer (101) is made of PVC material.

3. The heat dissipation structure of a waterproof gearbox according to claim 1, characterized in that: A wire harness (403) is installed through one side of the outer jacket (405), and the outer jacket (405) is made of rubber.

4. The heat dissipation structure of a waterproof gearbox according to claim 1, characterized in that: A fixing bolt (201) is installed through the other side of the closed cover (2), and a cross groove (202) is fixedly provided on the other side of the fixing bolt (201).

5. The heat dissipation structure of a waterproof gearbox according to claim 4, characterized in that: A fixing seat (203) is fixedly installed between the fixing bolts (201), and the fixing bolts (201) are made of stainless steel.

6. The heat dissipation structure of a waterproof gearbox according to claim 1, characterized in that: The guide rod (3) is fixedly provided with limit grooves (301) at both ends, and a connecting threaded hole (303) is fixedly provided on the other side of the guide rod (3).

7. The heat dissipation structure of a waterproof gearbox according to claim 6, characterized in that: A sealing ring (302) is fixedly installed on one side of the limiting groove (301).

Citation Information

Patent Citations

  • Gear box cooling system and have its gear box

    CN208138454U