Cooling structure for shaft of coal mining machine

Abstract

The utility model discloses a cooling structure for a shaft of a coal mining machine, which comprises a cooling water seat and a water inlet pipe, the cooling water seat and the water inlet pipe are integrally formed, the cooling water seat is communicated with the water inlet pipe, and the water inlet pipe is communicated with a cooling cavity; a water inlet and a water outlet are formed in the side surface of the cooling water seat; a water outlet channel communicated with the water outlet is formed in the cooling water seat and is communicated with the cooling cavity; a water inlet channel is formed in the water inlet pipe and communicates with the water inlet, and the water inlet channel communicates with the cooling cavity. The cooling structure is installed in the cooling cavity of the idler shaft, limitation of the structure of the coal mining machine is not needed, and the overall structure of the coal mining machine is prevented from being changed; meanwhile, cooling water forms a closed loop through cooperation between the water inlet and the water outlet, the temperature of the idler shaft is rapidly reduced, the situation that a high-pressure hose is blocked in the traditional working condition is avoided, shutdown accidents are avoided, influences of the actual working condition and normal coal cutting of the coal mining machine are avoided, and application and popularization are facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mine mechanical equipment, in particular to a cooling structure for a coal mining machine shaft. Background Art

[0002] As an important energy source, coal is mainly mined by the back-and-forth cutting of coal mining machines. However, long-term mining will inevitably lead to an increase in the temperature of the coal mining machines. Therefore, it is necessary to control the temperature of the coal mining machines within a reasonable range.

[0003] At present, the temperature reduction of the arm of most coal mining machines is mainly achieved by installing cooling pipes and high-pressure hoses in the arm, and the cooling pipes and high-pressure hoses are used to locally cool the parts of the coal mining machine rocker arm to achieve the cooling effect of the overall coal mining machine rocker arm. However, under actual working conditions, it is easy to cause the high-pressure hose to be blocked, causing the arm temperature to exceed the reasonable range and trigger the shutdown protection of the coal mining machine; under complex geological conditions, high-power thin coal seam coal mining machines have no spare space to install built-in cooling pipes due to structural problems, which is not conducive to cooling the coal mining machine rocker arm. In order to cool the coal mining machine rocker arm, a cooling structure installed on the idler shaft of the coal mining machine is provided. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide a cooling structure for a coal mining machine shaft in view of the deficiencies in the above-mentioned prior art. By installing the cooling structure in the cooling cavity of the idler shaft, it is not necessary to be restricted by the structure of the coal mining machine and avoid changing the overall structure of the coal mining machine. At the same time, cooling water is passed through the cooperation between the water inlet and the water outlet to form a closed loop, which quickly reduces the temperature of the idler shaft and avoids the blockage of the high-pressure hose in traditional working conditions, thereby avoiding shutdown accidents. The cooling structure is not affected by the actual working conditions and does not affect the normal coal cutting of the coal mining machine, so it is easy to promote and apply.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a cooling structure for a coal mining machine shaft, characterized in that it includes a cooling water seat arranged at the cavity opening of the cooling cavity of the idler shaft and a water inlet pipe arranged at the bottom of the cooling water seat and extending into the cooling cavity, the cooling water seat and the water inlet pipe are integrally formed, and the cooling water seat and the water inlet pipe are connected, and the water inlet pipe and the cooling cavity are connected;

[0006] A water inlet and a water outlet are provided on the side of the cooling water seat, and the water inlet and the water outlet are arranged on the same side of the cooling water seat; a water outlet channel connected to the water outlet is provided in the cooling water seat, and the water outlet channel is connected to the cooling cavity;

[0007] A water inlet channel is provided inside the water inlet pipe, the water inlet channel is arranged along the length direction of the water inlet pipe, the central axis of the water inlet pipe coincides with the central axis of the water inlet channel, the water inlet channel is connected to the water inlet, and the water inlet channel is connected to the cooling chamber.

[0008] The above-mentioned cooling structure for a coal mining machine shaft is characterized in that: the cooling water seat includes a cooling base arranged at the cavity mouth of the cooling cavity of the idler shaft and an auxiliary seat arranged at the bottom of the cooling base, the central axis of the auxiliary seat coincides with the central axis of the cooling water seat, and the auxiliary seat and the cooling base are integrally formed; a first water outlet channel connected to the water outlet is provided on the cooling base, and a second water outlet channel connected to the first water outlet channel is provided on the auxiliary seat, the central axis of the first water outlet channel coincides with the central axis of the second water outlet channel, and the first water outlet channel is connected to the water outlet channel formed by the second water outlet channel and the water outlet channel connected to the water outlet.

[0009] The above-mentioned cooling structure for the coal mining machine shaft is characterized in that the center of the water outlet and the central axis of the water outlet channel are arranged on the same vertical line, and it is arranged on one side of the central axis of the water inlet pipe.

[0010] The above-mentioned cooling structure for the shaft of a coal mining machine is characterized in that: a fixing hole is opened at the top corner of the cooling base; and a bolt positioning hole is opened on the top surface of the cooling base.

[0011] The above-mentioned cooling structure for a coal mining machine shaft is characterized in that the spacing between the pipe wall on one side of the water inlet pipe and the side wall on the same side of the cooling chamber is in the range of 5mm to 10mm.

[0012] The above-mentioned cooling structure for the coal mining machine shaft is characterized in that an O-ring is provided between the cooling base and the inner wall of the idler shaft.

[0013] The beneficial effects of the utility model are that by installing a cooling structure in the cooling cavity of the idler shaft, it is not necessary to be restricted by the structure of the coal mining machine, and thus avoids changing the overall structure of the coal mining machine; at the same time, cooling water is passed through the water inlet and the water outlet to form a closed loop, which quickly reduces the temperature of the idler shaft, avoids the blockage of the high-pressure hose in traditional working conditions, avoids shutdown accidents, and is not affected by actual working conditions, does not affect the normal coal cutting of the coal mining machine, and is easy to promote and apply.

[0014] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 for Figure 1 Top view of the .

[0017] Figure 3 This is a usage state diagram of the utility model.

[0018] Description of reference numerals:

[0019] DETAILED DESCRIPTION

[0020] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model comprises a cooling water seat arranged at the cavity opening of the cooling cavity 12 of the idler shaft 11 and a water inlet pipe 2 arranged at the bottom of the cooling water seat and extending into the cooling cavity 12, the cooling water seat and the water inlet pipe 2 are integrally formed, and the cooling water seat and the water inlet pipe 2 are connected, and the water inlet pipe 2 is connected to the cooling cavity 12;

[0021] A water inlet 3 and a water outlet 4 are provided on the side of the cooling water seat, and the water inlet 3 and the water outlet 4 are arranged on the same side of the cooling water seat; a water outlet channel 7 connected to the water outlet 4 is provided in the cooling water seat, and the water outlet channel 7 is connected to the cooling cavity 12;

[0022] A water inlet channel 5 is opened inside the water inlet pipe 2, and the water inlet channel 5 is arranged along the length direction of the water inlet pipe 2. The central axis of the water inlet pipe 2 coincides with the central axis of the water inlet channel 5. The water inlet channel 5 is connected to the water inlet 3, and the water inlet channel 5 is connected to the cooling chamber 12.

[0023] In actual use, by installing a cooling structure in the cooling chamber 12 of the idler shaft 11, there is no need to be restricted by the structure of the coal mining machine, and changes to the overall structure of the coal mining machine are avoided; at the same time, the cooling water is passed through the water inlet 3 and the water outlet 4 to form a closed loop, which quickly reduces the temperature of the idler shaft 11, avoids the blockage of the high-pressure hose in traditional working conditions, avoids shutdown accidents, and is not affected by the actual working conditions, does not affect the normal coal cutting of the coal mining machine, and is easy to promote and apply.

[0024] like Figure 3 As shown, the idler shaft 11 is installed in the coal mining machine rocker arm 8, a water inlet hose is installed on the water inlet 3, and a water outlet hose is installed on the water outlet 4. The water outlet hose and the water inlet hose are both fixed to the cooling base 1 by U-shaped clips, and the fixing hole 9 is for the installation of the U-shaped clip. The cooling structure is installed in the cooling cavity 12 by installing the bolts in the bolt positioning holes 10.

[0025] It should be noted that the cooling water enters through the water inlet 3 and enters the cooling chamber 12 through the water inlet channel 5 to reduce the temperature, and is then discharged through the water outlet 4 connected to the water outlet channel 7 .

[0026] like Figure 1 As shown, in this embodiment, the cooling water seat includes a cooling base 1 arranged at the cavity mouth of the cooling cavity 12 of the idler shaft 11 and an auxiliary seat 6 arranged at the bottom of the cooling base 1, the central axis of the auxiliary seat 6 coincides with the central axis of the cooling water seat, and the auxiliary seat 6 and the cooling base 1 are integrally formed; a first water outlet channel connected to the water outlet 4 is provided on the cooling base 1, and a second water outlet channel connected to the first water outlet channel is provided on the auxiliary seat 6, the central axis of the first water outlet channel coincides with the central axis of the second water outlet channel, and the first water outlet channel is connected to the second water outlet channel to form a water outlet channel 7 connected to the water outlet 4.

[0027] like Figure 1 As shown, in this embodiment, the center of the water outlet 4 and the central axis of the water outlet channel 7 are arranged on the same vertical line, and are arranged on one side of the central axis of the water inlet pipe 2.

[0028] like Figure 2 As shown, in this embodiment, a fixing hole 9 is opened at the top corner of the cooling base 1 ; and a bolt positioning hole 10 is opened on the top surface of the cooling base 1 .

[0029] In this embodiment, the distance between the tube wall on one side of the water inlet pipe 2 and the side wall on the same side of the cooling chamber 12 ranges from 5 mm to 10 mm.

[0030] like Figure 3 As shown, in this embodiment, an O-ring 13 is provided between the cooling base 1 and the inner wall of the idler shaft 11 .

[0031] During actual use, an O-ring 13 is installed on the cooling base 1 to ensure that cooling water does not enter the interior of the arm.

[0032] The above is only a preferred embodiment of the present invention and does not constitute any limitation to the present invention. Any simple modification, change and equivalent structural change made to the above embodiments according to the technical essence of the present invention shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. A cooling structure for a coal mining machine shaft, characterized in that: It comprises a cooling water seat arranged at the cavity opening of a cooling cavity (12) of an idler shaft (11) and a water inlet pipe (2) arranged at the bottom of the cooling water seat and extending into the cooling cavity (12), the cooling water seat and the water inlet pipe (2) being integrally formed, the cooling water seat and the water inlet pipe (2) being connected, and the water inlet pipe (2) being connected to the cooling cavity (12); A water inlet (3) and a water outlet (4) are provided on the side of the cooling water seat, and the water inlet (3) and the water outlet (4) are arranged on the same side of the cooling water seat; a water outlet channel (7) connected to the water outlet (4) is provided in the cooling water seat, and the water outlet channel (7) is connected to the cooling chamber (12); A water inlet channel (5) is provided inside the water inlet pipe (2), the water inlet channel (5) is arranged along the length direction of the water inlet pipe (2), the central axis of the water inlet pipe (2) coincides with the central axis of the water inlet channel (5), the water inlet channel (5) is connected to the water inlet (3), and the water inlet channel (5) is connected to the cooling chamber (12).

2. A cooling structure for a coal mining machine shaft according to claim 1, characterized in that: The cooling water seat comprises a cooling base (1) arranged at the cavity opening of the cooling cavity (12) of the idler shaft (11) and an auxiliary seat (6) arranged at the bottom of the cooling base (1), the central axis of the auxiliary seat (6) coincides with the central axis of the cooling water seat, and the auxiliary seat (6) and the cooling base (1) are integrally formed; a first water outlet channel connected to the water outlet (4) is provided on the cooling base (1), and a second water outlet channel connected to the first water outlet channel is provided on the auxiliary seat (6), the central axis of the first water outlet channel coincides with the central axis of the second water outlet channel, and the first water outlet channel and the second water outlet channel form a water outlet channel (7) connected to the water outlet (4).

3. A cooling structure for a coal mining machine shaft according to claim 2, characterized in that: The center of the water outlet (4) and the central axis of the water outlet channel (7) are arranged on the same vertical line, and are arranged on one side of the central axis of the water inlet pipe (2).

4. A cooling structure for a coal mining machine shaft according to claim 2, characterized in that: A fixing hole (9) is provided at the top corner of the cooling base (1); and a bolt positioning hole (10) is provided on the top surface of the cooling base (1).

5. A cooling structure for a coal mining machine shaft according to claim 1, characterized in that: The spacing between a tube wall on one side of the water inlet pipe (2) and a side wall on the same side of the cooling chamber (12) is in the range of 5 mm to 10 mm.

6. A cooling structure for a coal mining machine shaft according to claim 2, characterized in that: An O-ring (13) is provided between the cooling base (1) and the inner wall of the idler shaft (11).

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