Water-cooling speed reducer

Abstract

The utility model discloses a water cooling speed reducer which comprises a speed reducer box body and a cooling rod, a mounting hole is formed in the side wall of the speed reducer box body, the cooling rod comprises an outer pipe body and an inner pipe body, the inner pipe body penetrates through and is fixedly installed in the outer pipe body, and the inner pipe body is fixedly installed in the inner pipe body. One end of the inner pipe body is located in the outer pipe body and communicated with the outer pipe body, the other end of the inner pipe body is located outside the outer pipe body to form a water inlet port, the other end of the outer pipe body extends outwards to form a water outlet port, and the closed end of the outer pipe body penetrates through the mounting hole and extends into the speed reducer box body. According to the water-cooling speed reducer, the cooling rod can extend into the speed reducer box body and below the liquid level of the lubricating oil in the speed reducer box body, so that after cooling water is introduced into the cooling rod, the lubricating oil and all parts in the speed reducer box body are cooled.

Description

Technical Field

[0001] The utility model relates to the technical field of reducers, in particular to a water-cooled reducer. Background Art

[0002] As a reduction transmission device, the reducer is installed between the prime mover and the working machine. It is an independent component composed of gear transmission, worm transmission, and gear-worm transmission enclosed in a rigid shell. The work of the reducer is inseparable from bearings and lubricating oil. The work of the bearings and the characteristics of the lubricating oil are closely related to the temperature. Among them, the working temperature that the bearings can withstand is generally around 65°C, and the limit temperature is around 90°C; and in the lubricating oil, the viscosity of the lubricating oil represents the resistance to the flow of the lubricating oil. It is an important characteristic of the lubricating oil. It also changes with temperature and is closely related to and affected by temperature. However, in a high-temperature production environment, the operating temperature of the reducer can reach as high as 90°C, and even exceed 110°C in a sealed environment. In order to ensure the normal operation of the reducer in a high-temperature production environment and reduce the failure rate of the reducer in a high-temperature environment, the reducer needs to be cooled. Utility Model Content

[0003] The purpose of the utility model is to provide a water-cooled reducer.

[0004] The technical solution to achieve the purpose of the utility model is: a water-cooled reducer, including a reducer housing and a cooling rod, a mounting hole is opened on the side wall of the reducer housing, the cooling rod includes an outer tube body and an inner tube body, the outer diameter of the inner tube body is smaller than the inner diameter of the outer tube body, the inner tube body is passed through and fixedly installed in the outer tube body, one end of the inner tube body is located in the outer tube body and intersects with the outer tube body, the other end of the inner tube body is located outside the outer tube body to form a water inlet port, one end of the outer tube body is closed, and the other end of the outer tube body extends outward to form a water outlet port, the water inlet port and the water outlet port are located on the same end side of the cooling rod, the outer tube body is provided with a mounting portion, the closed end of the outer tube body passes through the mounting hole and extends into the reducer housing, and the mounting portion of the outer tube body is sealed and installed with the mounting hole.

[0005] Furthermore, the outer tube body is in a Z-shape. In the utility model water-cooled reducer, the inner tube body can be a straight tube and the outer tube body can be a Z-shaped tube; or the outer tube body can be a straight tube and the inner tube body can be a Z-shaped tube. Compared with the latter, when the inner tube body is a straight tube, the structure in which the inner tube body is inserted into the outer tube body is easier to form. And under the structure of the Z-shaped tube, it is also easy to make the water inlet port and the water outlet port parallel and facing the same direction, which is convenient for the installation of water inlet and outlet.

[0006] Furthermore, the inner tube body is coaxially disposed inside the outer tube body.

[0007] Furthermore, the water inlet port and the water outlet port are parallel. The water inlet port and the water outlet port may be parallel or non-parallel. When they are parallel, they face the same direction, which is more conducive to the arrangement of water circulation.

[0008] Furthermore, the mounting portion is a threaded portion, and the mounting portion and the mounting hole are threadedly matched for sealing installation. The threaded matching makes assembly and disassembly more convenient.

[0009] Furthermore, the cooling rod is located below the lubricating oil level in the reducer housing. When the cooling rod is located below the lubricating oil level in the reducer housing, the exchange efficiency is higher and the heat dissipation effect is better when heat is exchanged with the lubricating oil.

[0010] The utility model discloses a water-cooled reducer, by opening the mounting hole on the side wall of the reducer housing, inserting and mounting the cooling rod in the mounting hole, so that the cooling rod can be extended into the reducer housing, below the level of the lubricating oil in the reducer housing, and then cooling water is passed into the cooling rod, so that the lubricating oil and various components in the reducer housing can be dissipated and cooled, thereby preventing the reducer from being damaged due to high temperature and ensuring the normal operation of the reducer.

[0011] Moreover, in the water-cooled reducer of the utility model, the cooling rod is formed integrally by the outer tube body and the inner tube body, the inner tube body is inserted into the outer tube body and interpenetrates with the outer tube body, a reciprocating water flow channel is formed in the cooling rod, the water inlet port and the water outlet port are located on the same end side of the cooling rod, and the cooling rod is a rod body structure. Under the rod body structure of the cooling rod, when installing the cooling rod on the reducer housing, it is only necessary to open one mounting hole on the side wall of the reducer housing, so as to achieve the installation of the cooling rod that extends into and delivers cooling water into the reducer housing, without opening two mounting holes; compared with the reducer housing with only one mounting hole, after the cooling rod is installed, its sealing is better, the risk of oil leakage of the reducer housing is greatly reduced, and it is safer and more reliable when used.

[0012] In addition, under the rod body structure of the cooling rod, the water inlet port and the water outlet port are located on the same end side of the cooling rod. When the cooling rod is removed from the reducer housing, it is only necessary to unplug and plug the cooling rod without removing the water pipes connected to the water inlet port and the water outlet port. The cooling rod has low connectivity with the reducer housing, and disassembly and assembly are more flexible and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model water-cooled reducer;

[0014] Figure 2The utility model is a schematic diagram of the structure of the cooling rod of the water-cooled reducer. DETAILED DESCRIPTION

[0015] The following is a detailed description of the preferred embodiment of the water-cooled reducer of the utility model in conjunction with the accompanying drawings:

[0016] like Figure 1 and Figure 2 As shown, a water-cooled reducer includes a reducer housing 1 and a cooling rod 2. The side wall of the reducer housing 1 is provided with a mounting hole 11. The cooling rod 2 includes an outer tube body 21 and an inner tube body 22. The outer diameter D1 of the inner tube body 22 is smaller than the inner diameter D2 of the outer tube body 21. The inner tube body 22 is passed through and fixedly installed in the outer tube body 21. One end of the inner tube body 22 is located in the outer tube body 21 and is connected with the outer tube body 21. The other end of the inner tube body 22 is located in the outer tube body 21. A water inlet port 201 is formed outside the outer tube body 21, one end of the outer tube body 21 is closed, and the other end of the outer tube body 21 extends outward to form a water outlet port 202, the water inlet port 201 and the water outlet port 202 are located on the same end side of the cooling rod 2, and a mounting portion 211 is provided on the outer tube body 21, and the closed end 210 of the outer tube body 21 passes through the mounting hole 11 and extends into the reducer housing 1, and the mounting portion 211 of the outer tube body 21 is sealed and installed with the mounting hole 11.

[0017] The utility model water-cooled reducer, the reducer housing 1 is installed with components such as gear transmission, worm transmission, gear-worm transmission, and lubricating oil, and serves as the main body of the reducer. The outer tube 21 of the cooling rod 2 passes through and is installed on the mounting hole 11, and the cooling rod 2 extends into the reducer housing 1 and is located below the lubricating oil level in the reducer housing 1. The cooling rod 2 dissipates heat and cools the lubricating oil and various components in the reducer housing 1. Among them, one end of the outer tube body 21 is open and the other end is closed, and both ends of the inner tube body 22 are open. The outer diameter D1 of the inner tube body 22 is smaller than the inner diameter D2 of the outer tube body 21. After the inner tube body 22 extends into the outer tube body 21 through the tube wall opening of the outer tube body 21, the inner tube body 22 and the outer tube body 21 are connected to form a connected cooling water channel, and the water inlet port 201 and the water outlet port 202 are both located outside the reducer housing 1.

[0018] When the water-cooled reducer of the utility model is used to dissipate heat and cool the reducer housing 1, cooling water is introduced into the cooling rod 2 through the water inlet port 201, and the cooling water entering the cooling rod 2 performs heat exchange with the lubricating oil in the reducer housing 1, thereby dissipating heat and cooling the lubricating oil and various components in the reducer housing 1. Specifically, the cooling water enters the inner tube body 22 through the water inlet port 201, flows into the cooling rod 2 along the inner tube body 22, and then enters the outer tube body 21, flows through the gap between the outer tube body 21 and the inner tube body 22, and flows out of the cooling rod 2 along the outer tube body 21, and finally flows out through the water outlet port 202. In this way, cooling water is continuously introduced into the cooling rod 2 to water-cool the reducer housing 1.

[0019] The utility model water-cooled reducer, by opening the mounting hole 11 on the side wall of the reducer housing 1, and inserting and installing the cooling rod 2 in the mounting hole 11, so that the cooling rod 2 can be extended into the reducer housing 1, below the lubricating oil level in the reducer housing 1, and then cooling water is passed into the cooling rod 2, so that the lubricating oil and various components in the reducer housing 1 can be dissipated and cooled, thereby preventing the reducer from being damaged due to high temperature and ensuring the normal operation of the reducer.

[0020] Moreover, in the water-cooled reducer of the utility model, the cooling rod 2 is formed integrally by the outer tube body 21 and the inner tube body 22, the inner tube body 22 is inserted into the outer tube body 21 and interpenetrates with the outer tube body 21, a reciprocating water flow channel is formed in the cooling rod 2, the water inlet port 201 and the water outlet port 202 are located at the same end side of the cooling rod 2, and the cooling rod 2 is a rod body structure. Under the rod body structure of the cooling rod 2, when installing the cooling rod 2 on the reducer housing 1, it is only necessary to open one of the mounting holes 11 on the side wall of the reducer housing 1, so as to realize the installation of the cooling rod 2 that extends into and feeds cooling water into the reducer housing 1, without opening two mounting holes; compared with the reducer housing 1 with only one mounting hole 11, after the cooling rod 2 is installed, its sealing is better, the risk of oil leakage of the reducer housing 1 is greatly reduced, and it is safer and more reliable when used.

[0021] In addition, under the rod body structure of the cooling rod 2, the water inlet port 201 and the water outlet port 202 are located on the same end side of the cooling rod 2. When the cooling rod 2 is removed from the reducer housing 1, it is only necessary to unplug and plug the cooling rod 2 without removing the water pipe connecting the water inlet port 201 and the water outlet port 202. The connectivity between the cooling rod 2 and the reducer housing 1 is low, and disassembly and assembly is more flexible and convenient.

[0022] In the water-cooled reducer of the utility model, preferably, the outer tube body 21 is in a Z-shape. In the water-cooled reducer of the utility model, the inner tube body 22 can be a straight tube, and the outer tube body 21 can be a Z-shaped tube; or the outer tube body 21 can be a straight tube, and the inner tube body 22 can be a Z-shaped tube. Compared with the latter, when the inner tube body 22 of the former is a straight tube, the structure in which the inner tube body 22 is inserted into the outer tube body 21 is easier to form. And under the structure of the Z-shaped tube, it is also easy to make the water inlet port 201 and the water outlet port 202 parallel and facing the same direction, which is convenient for the installation of water inlet and outlet.

[0023] In the water-cooled reducer of the present invention, preferably, the inner tube body 22 is coaxially disposed inside the outer tube body 21 .

[0024] In the water-cooled reducer of the present invention, preferably, the water inlet port 201 is parallel to the water outlet port 202. The water inlet port 201 and the water outlet port 202 may be parallel or non-parallel. When they are parallel, they face the same direction, which is more conducive to the arrangement of water circulation.

[0025] In the water-cooled reducer of the utility model, preferably, the mounting portion 211 is a threaded portion, and the mounting portion 211 is threadedly matched with the mounting hole 11 for sealing installation. The threaded match makes assembly and disassembly more convenient.

[0026] In the water-cooled reducer of the utility model, the inner tube body 22 and the outer tube body 21 can be formed in one piece, or can be assembled separately.

[0027] For ordinary technicians in the technical field to which the utility model belongs, the utility model can make several simple deductions or substitutions without departing from the concept of the utility model, which should be regarded as falling within the protection scope of the utility model.

Claims

1. A water-cooled reducer, characterized in that: It includes a reducer housing and a cooling rod, a mounting hole is opened on the side wall of the reducer housing, the cooling rod includes an outer tube body and an inner tube body, the outer diameter of the inner tube body is smaller than the inner diameter of the outer tube body, the inner tube body is passed through and fixedly installed in the outer tube body, one end of the inner tube body is located in the outer tube body and intersects with the outer tube body, the other end of the inner tube body is located outside the outer tube body to form a water inlet port, one end of the outer tube body is closed, and the other end of the outer tube body extends outward to form a water outlet port, the water inlet port and the water outlet port are located on the same end side of the cooling rod, the outer tube body is provided with a mounting portion, the closed end of the outer tube body passes through the mounting hole and extends into the reducer housing, and the mounting portion of the outer tube body is sealed and installed with the mounting hole.

2. The water-cooled reducer according to claim 1, characterized in that: The outer tube is in a Z shape.

3. The water-cooled reducer according to claim 1, characterized in that: The inner tube body is coaxially arranged inside the outer tube body.

4. The water-cooled reducer according to claim 1, characterized in that: The water inlet port and the water outlet port are parallel.

5. The water-cooled reducer according to claim 1, characterized in that: The mounting portion is a threaded portion, and the mounting portion is threadedly matched with the mounting hole for sealing installation.

6. The water-cooled reducer according to claim 1, characterized in that: The cooling rod is located below the lubricating oil level in the reducer housing.

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