Box body structure of reduction gearbox

Abstract

The box body structure of the reduction gearbox comprises an upper shell body and a lower shell body, the upper shell body and the lower shell body are connected through a flange structure, a first annular shell body is arranged in the lower shell body, an annular groove is formed in the first annular shell body, a second annular shell body is arranged at the bottom of the upper shell body, and an annular groove is formed in the second annular shell body. An annular protruding block matched with the annular groove is arranged at the end, away from the upper shell, of the second annular shell, a heat dissipation structure is arranged at the top of the upper shell, an output device is arranged at the bottom of the lower shell, and a positioning structure is arranged in the flange structure. The box body structure can provide an installation space with good sealing performance for the speed reducer, heat can be discharged in time when the heat of the box body is high, the service life of the speed reducer is prevented from being damaged, the discharging opening can be sealed in time after the heat is discharged, and the sealing performance is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of gearboxes, and more particularly to a gearbox housing structure. Background Technology

[0002] Gearboxes are widely used in mechanisms for transmitting power and motion. Poor sealing can negatively impact their quality and lifespan, thus requiring dustproof and sealing properties. When gearboxes operate in harsh environments with high dust levels and impurities, such as coal yards and mines, dust and impurities can enter the oil seals along with the lubricating grease, shortening seal life and frequently causing oil seepage and leakage at the shaft ends. Over time, this leads to reduced oil volume, lower oil levels, poor lubrication, and wear on bearings and gears, affecting the normal operation of the gearbox. Furthermore, the high heat generated within the gearbox during prolonged operation, coupled with the inability to dissipate heat, can also shorten its lifespan.

[0003] Therefore, it is necessary to design a gearbox housing structure that has good sealing performance and can dissipate heat. Utility Model Content

[0004] To address the technical deficiencies in the background art, this utility model proposes a gearbox housing structure, which solves the aforementioned technical problems and meets practical needs. The specific technical solution is as follows:

[0005] A gearbox housing structure includes an upper housing and a lower housing, which are connected by a flange structure. The lower housing has a first annular housing inside, and the first annular housing has an annular groove inside. The bottom of the upper housing has a second annular housing, and the end of the second annular housing away from the upper housing has an annular protrusion that mates with the annular groove. The top of the upper housing has a heat dissipation structure, and the bottom of the lower housing has an output device. The flange structure has a positioning structure inside.

[0006] Furthermore, the flange structure includes an upper flange and a lower flange. The upper flange is fixed to the bottom of the upper housing, and the lower flange is fixed to the top of the lower housing. Both the upper flange and the lower flange are provided with corresponding screw holes, and the upper flange and the lower flange are fixed by bolts.

[0007] Furthermore, the positioning structure includes several positioning blocks, which are evenly arranged at the bottom of the upper flange, and the top of the lower flange is provided with several positioning holes that cooperate with the positioning blocks.

[0008] Furthermore, the top of the upper housing is provided with a mounting groove, a cover plate is provided in the mounting groove, and the heat dissipation structure is installed between the cover plate and the mounting groove.

[0009] Furthermore, the heat dissipation structure includes several heat dissipation holes and several shape memory alloys. The heat dissipation holes are evenly distributed along the inner edge of the mounting groove and penetrate the upper housing. The shape memory alloys are also evenly distributed on the mounting groove and their tops abut against the cover plate.

[0010] Furthermore, the annular bump includes a first bump and a second bump, the bottoms of the first bump and the second bump being connected and their tops gradually moving away from each other.

[0011] Furthermore, the top of the output device is in communication with the first annular housing.

[0012] Compared with the prior art, the gearbox housing structure provided by this utility model has the following beneficial effects:

[0013] This utility model discloses a gearbox housing structure in which a first annular shell and a second annular shell are designed to cooperate and install the gearbox. The gearbox is installed inside the first and second annular shells. The cooperation of the annular protrusions and annular grooves not only facilitates installation but also improves the sealing between the first and second annular shells, preventing dust and impurities from entering the gearbox. The heat dissipation structure at the top of the upper shell can dissipate heat independently through a shape memory alloy. When the heat inside the gearbox accumulates to a certain level, the shape memory alloy expands and lifts the cover plate. The heat will flow out through the heat dissipation holes from the gap between the cover plate and the upper shell. When the temperature inside the gearbox drops, the shape memory alloy retracts, and the cover plate covers the mounting groove again, preventing dust from entering the gearbox through the heat dissipation holes. This design provides good sealing and timely heat dissipation, thus improving the service life of the gearbox. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the housing structure of a gearbox according to the present invention.

[0015] Figure 2 This is an exploded view of the housing structure of a gearbox according to the present invention.

[0016] Figure 3 This is a schematic diagram of the upper shell structure in this utility model.

[0017] Among them, 1. upper shell, 2. lower shell, 3. first annular shell, 4. annular groove, 5. second annular shell, 6. annular protrusion, 7. output device, 8. upper flange, 9. lower flange, 10. screw hole, 11. positioning block, 12. positioning hole, 13. mounting groove, 14. cover plate, 15. heat dissipation hole, 16. shape memory alloy, 17. first protrusion, 18. second protrusion. Detailed Implementation

[0018] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "middle," and "inner," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.

[0019] The embodiments of this utility model will be described below with reference to the accompanying drawings and related examples. The embodiments of this utility model are not limited to the following examples, and this utility model relates to relevant necessary components in this technical field, which should be regarded as well-known technology in this technical field and can be known and mastered by those skilled in this technical field.

[0020] See Figure 1-3 A gearbox housing structure includes an upper housing 1 and a lower housing 2, which are connected by a flange structure to fix them together. The lower housing 2 has a first annular housing 3 inside, with an annular groove 4 inside. The bottom of the upper housing 1 has a second annular housing 5, with an annular protrusion 6 at the end of the second annular housing 5 away from the upper housing 1 that mates with the annular groove 4. The annular groove 4 and the annular protrusion 6 cooperate to form a sealed space between the first annular housing 3 and the second annular housing 5 for mounting a gearbox. The top of the upper housing 1 has a heat dissipation structure to dissipate heat from the gearbox. The bottom of the lower housing 2 has an output device 7. The flange structure has a positioning structure inside for positioning the flange structure for easy installation.

[0021] In one embodiment of this utility model, the flange structure includes an upper flange 8 and a lower flange 9. The upper flange 8 is fixed to the bottom of the upper housing 1, and the lower flange 9 is fixed to the top of the lower housing 2. Both the upper flange 8 and the lower flange 9 are provided with corresponding screw holes 10, and the upper flange 8 and the lower flange 9 are fixed together by bolts. After the upper flange 8 and the lower flange 9 are fixed together, the upper housing 1 and the lower housing 2 can be fixed together.

[0022] In one embodiment of this utility model, the positioning structure includes a plurality of positioning blocks 11, which are evenly arranged at the bottom of the upper flange 8, and the top of the lower flange 9 is provided with a plurality of positioning holes 12 that mate with the positioning blocks 11. Through the cooperation of the positioning holes 12, the upper housing 1 and the lower housing 2 can be easily joined together, making installation convenient.

[0023] In one embodiment of this utility model, a mounting groove 13 is provided on the top of the upper housing 1, and a cover plate 14 is provided inside the mounting groove 13. The heat dissipation structure is installed between the cover plate 14 and the mounting groove 13. The cover plate 14 can completely cover the mounting groove 13 to prevent dust from entering the gearbox from the mounting groove 13.

[0024] In one embodiment of this utility model, the heat dissipation structure includes a plurality of heat dissipation holes 15 and a plurality of shape memory alloys 16. The plurality of heat dissipation holes 15 are evenly distributed along the inner edge of the mounting groove 13 and penetrate the upper housing 1. The plurality of shape memory alloys 16 are also evenly distributed on the mounting groove 13 and their tops abut against the cover plate 14. When the reducer starts and the heat inside the gearbox accumulates to a certain level, the shape memory alloys 16 expand and rise, thereby lifting the cover plate 14. The heat inside the gearbox will dissipate from the edge of the mounting groove 13 through the heat dissipation holes 15. When the heat inside the gearbox is discharged to a certain level, the shape memory alloys 16 will retract and descend, and the cover plate 14 will completely cover the mounting groove 13 again, preventing dust and impurities from entering the gearbox through the heat dissipation holes 15.

[0025] In one embodiment of this utility model, the annular protrusion 6 includes a first protrusion 17 and a second protrusion 18, with the bottoms of the first protrusion 17 and the second protrusion 18 connected and their tops gradually moving away from each other. The tops of the first protrusion 17 and the second protrusion 18 protrude to both sides, ensuring the sealing between the first annular shell 3 and the second annular shell 5 when they are engaged in the annular groove 4, and making the connection more stable.

[0026] In one embodiment of this utility model, the top of the output device 7 is connected to the first annular housing 3.

[0027] This utility model discloses a gearbox housing structure in which a first annular shell 3 and a second annular shell 5 are designed to cooperate and install the gearbox. The gearbox is installed inside the first annular shell 3 and the second annular shell 5. The cooperation of the annular protrusion 6 and the annular groove 4 not only facilitates installation but also improves the sealing between the first annular shell 3 and the second annular shell 5, preventing dust and impurities from entering the gearbox. The heat dissipation structure at the top of the upper shell 1 can dissipate heat independently through the shape memory alloy 16. When the heat inside the gearbox accumulates to a certain level, the shape memory alloy 16 will expand and push up the cover plate 14. The heat will flow out through the heat dissipation hole 15 from the gap between the cover plate 14 and the upper shell 1. When the temperature inside the gearbox drops, the shape memory alloy 16 will retract, and the cover plate 14 will cover the mounting groove 13 again, preventing dust from entering the gearbox through the heat dissipation hole 15. This design provides good sealing and timely heat dissipation, thereby improving the service life of the gearbox.

[0028] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A gearbox housing structure, characterized in that, The device includes an upper housing (1) and a lower housing (2), which are connected by a flange structure. The lower housing (2) has a first annular housing (3) inside, and an annular groove (4) inside the first annular housing (3). The bottom of the upper housing (1) has a second annular housing (5), and the end of the second annular housing (5) away from the upper housing (1) has an annular protrusion (6) that cooperates with the annular groove (4). The top of the upper housing (1) has a heat dissipation structure, and the bottom of the lower housing (2) has an output device (7). The flange structure has a positioning structure inside.

2. The gearbox housing structure according to claim 1, characterized in that, The flange structure includes an upper flange (8) and a lower flange (9). The upper flange (8) is fixed to the bottom of the upper housing (1), and the lower flange (9) is fixed to the top of the lower housing (2). Both the upper flange (8) and the lower flange (9) are provided with corresponding screw holes (10). The upper flange (8) and the lower flange (9) are fixed by bolts.

3. The gearbox housing structure according to claim 2, characterized in that, The positioning structure includes several positioning blocks (11), which are evenly arranged at the bottom of the upper flange (8), and the top of the lower flange (9) is provided with several positioning holes (12) that cooperate with the positioning blocks (11).

4. The gearbox housing structure according to claim 1, characterized in that, The top of the upper housing (1) is provided with a mounting groove (13), and a cover plate (14) is provided in the mounting groove (13). The heat dissipation structure is installed between the cover plate (14) and the mounting groove (13).

5. The gearbox housing structure according to claim 4, characterized in that, The heat dissipation structure includes several heat dissipation holes (15) and several shape memory alloys (16). The several heat dissipation holes (15) are evenly distributed on the inner edge of the mounting groove (13) and penetrate the upper shell (1). The several shape memory alloys (16) are also evenly distributed on the mounting groove (13) and their tops abut against the cover plate (14).

6. The gearbox housing structure according to claim 1, characterized in that, The annular bump (6) includes a first bump (17) and a second bump (18), with the bottoms of the first bump (17) and the second bump (18) connected and their tops gradually moving away from each other.

7. The gearbox housing structure according to claim 1, characterized in that, The top of the output device (7) is connected to the first annular housing (3).

Images