A reducer housing

Abstract

This invention relates to the field of mechanical technology and discloses a reducer housing. The invention includes: an upper housing and a lower housing, fixedly connected by bolts; a reduction gear, rotatably mounted within the upper and lower housings via bearings; and a secondary housing component, comprising a first secondary housing component and a second secondary housing component, which form a continuous channel. The starting point of the channel in the second secondary housing component is below the lubricating oil level within the lower housing. This invention uses gear rotation to drive lubricating oil circulation. During circulation, the oil is filtered through a filter element, removing metal shavings. Since the filter is located outside the housing, it is easily replaceable, thus extending the lubricating oil's service life, maintenance intervals, and reducing lubricating oil usage costs. Furthermore, this device improves the working quality of the lubricating oil during this period. Additionally, the device uses an accumulator injector for intermittent oil injection.

Description

Technical Field

[0001] This invention relates to the field of mechanical technology, and in particular to a reducer housing. Background Technology

[0002] The reducer housing is the outer shell of the reducer and the "skeleton" of the entire transmission system. It is usually composed of two main parts: the housing base and the housing cover, which enclose the internal transmission components such as gears, shafts, and bearings in a rigid structure.

[0003] Traditional reducers have a certain amount of lubricating oil inside the housing for lubrication. However, the meshing of gears inside the reducer causes metal wear, especially during start-up and shutdown, particularly after a period of inactivity. Since the lubricating oil is concentrated at the bottom of the reducer housing, there is insufficient lubrication between the gears above the lubricating oil level during startup. Under heavy load meshing, metal wear is significant. Furthermore, the metal wear generates metal shavings at the gear meshing points, which tend to accumulate between the teeth, further exacerbating the wear. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a reducer housing that solves the above-mentioned problems.

[0005] The technical problem solved by this invention is achieved through the following technical solution: A reducer housing, comprising: The upper and lower shells are fixedly connected as one by bolts. The reduction gear is rotatably mounted within the upper and lower housings via bearings; The sub-shell includes a first sub-shell and a second sub-shell, which form a continuous channel. The starting point of the channel of the second sub-shell is below the lubricating oil level in the lower shell, and the ending point of the channel of the first sub-shell is above the lubricating oil level in the upper shell. The oil pump is driven by the reduction gear to perform a liquid suction action, and the oil pump is connected to the secondary housing. An oil filter is disposed between the channels of the first and second sub-shells to filter the lubricating oil passing through the channels. The oil filter contains a filter element, and the lubricating oil is filtered by the filter element after passing through the oil filter. An accumulator injector is located at the end of a channel of the sub-housing component. The accumulator injector pressurizes the lubricating oil drawn in by the oil pump and then sprays it out intermittently. The spray path of the accumulator injector is directed towards one side of the gear tooth groove.

[0006] In one embodiment, the injection path of the accumulator injector is directed towards one side of the gear tooth groove. Specifically, the nozzle of the accumulator injector is parallel to the circumference of the gear and points to one end of the gear tooth groove. After the accumulator injector sprays out the lubricating oil, the lubricating oil flushes the tooth groove.

[0007] In one embodiment, the secondary housing includes a second pipe and a secondary pipe connected to the second pipe. A sealing flange is fixedly provided at one end of the secondary housing. Bolts are used to fix the sealing flange in a blind hole on the outer wall of the lower housing, thereby fixing the second pipe. The oil pump is fixed inside the lower housing and is sealed and connected to the second pipe. A rotating shaft is also rotatably provided inside the lower housing. An actuating gear is fixed on the rotating shaft by a key. The actuating gear meshes with the reduction gear.

[0008] In one embodiment, the secondary housing includes a pipe and a sealing flange fixed to the end of the pipe. The sealing flange is fixed in a blind hole on the outer wall of the upper housing by bolts. The upper end of the pipe passes through a hole reserved in the side wall of the upper housing. The accumulator injector is disposed in the upper housing and is sealed and connected to the upper end of the pipe. The lower end of the pipe is connected to the secondary pipe. The secondary pipe and the secondary pipe are connected through an oil filter.

[0009] In one embodiment, the first and second auxiliary pipes are respectively provided with an opening at their ends to connect with the oil filter's oil inlet and oil outlet. The end faces of the oil outlet and the oil inlet are provided with sealing rings. The oil filter contains a filter element. Oil enters the oil filter through the second auxiliary pipe via the oil inlet, is filtered by the filter element, and then enters the first auxiliary pipe through the oil outlet. It then enters the accumulator injector along the first pipe, thus achieving oil filtration. The upper end of the oil filter is fixedly provided with a tail cap, and a bolt is threadedly connected to the tail cap. A pad is provided on one side of the first auxiliary pipe. By rotating the bolt with a wrench, its upper end presses against the pad, thereby pressing the oil inlet and oil outlet at the lower end of the oil filter tightly.

[0010] In one embodiment, a positioning protrusion is fixedly provided at one end of the tube, and a blind hole is provided on the flange platform of the upper housing for the positioning protrusion to be inserted for fixing.

[0011] In one embodiment, a positioning protrusion is fixedly provided at one end of the second tube, and a blind hole is provided on the flange platform of the lower housing for the positioning protrusion to be inserted and fixed.

[0012] In one embodiment, the accumulator injector has a threaded pipe connection at one end for threaded sealing connection with the pipe. The accumulator injector has an accumulator chamber, which is connected to the threaded pipe connection through a channel. Thus, the oil in the pipe enters the accumulator chamber through the threaded pipe connection and the channel. The accumulator injector also includes a spring compression chamber with a spring inside. A piston body is slidably disposed in the spring compression chamber and sealed to the inner wall of the spring compression chamber. The spring provides outward thrust potential energy to the piston body. The front end of the accumulator injector is threadedly sealed with a nozzle with a conical orifice. A conical sealing plug is fixedly provided at the front end of the piston body. The conical sealing plug fits into the conical orifice to keep the conical orifice in a sealed state.

[0013] In one embodiment, a sealing ring is provided on the side wall of the accumulator to improve the sealing performance of the connection with one end face of the pipe. In addition, a pressure balance channel is provided in the accumulator to directly connect the spring compression chamber to the outside.

[0014] The advantages and positive effects of this invention are as follows: The reducer housing can drive the lubricating oil circulation through gear rotation. During the circulation process, the oil is filtered through the filter element to remove metal shavings. Since the filter is located outside the housing, it is very convenient to replace the filter, thereby increasing the service life of the lubricating oil, extending the maintenance cycle, and reducing the cost of lubricating oil. On the other hand, during this period, the working quality of the lubricating oil can be improved and mechanical wear can be reduced. In addition, this device uses an accumulator injector to intermittently inject oil, thereby lubricating the gear gaps above the lubricating oil level at the initial stage of reducer startup. Compared with the prior art, this improves the lubrication efficiency. Furthermore, since the injected lubricating oil has a certain kinetic energy, it is injected from the side of the gear groove, which can have a flushing effect on the gear groove, quickly washing away the metal shavings in the gear groove and concentrating them downwards along the inner wall of the housing. Then, the oil is filtered by the filter during the circulation process. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective; Figure 3 yes Figure 2 A three-dimensional structural diagram of the upper shell 10 removed from the middle; Figure 4 This is a schematic diagram of the structure of sub-shell 2 13 and sub-shell 12 in this invention; Figure 5This is a schematic diagram of the sub-shell 13 and sub-shell 12 from another perspective in this invention; Figure 6 yes Figure 4 Schematic diagram of the internal structure of the medium-pressure accumulator injector 18.

[0017] The markings in the attached diagram are described as follows: 10. Upper housing; 11. Lower housing; 12. Secondary housing component one; 13. Secondary housing component two; 14. Secondary housing component; 15. Reduction gear; 16. Pipe one; 17. Sealing flange; 18. Accumulator injector; 19. Positioning protrusion; 20. Secondary pipe one; 21. Pipe two; 22. Secondary pipe two; 23. Oil pump; 24. Actuating gear; 25. Shaft; 26. Oil filter; 27. Oil filter inlet; 28. Oil filter outlet; 29. ​​Gasket; 30. Tail top; 31. Bolt; 32. Threaded pipe connection; 33. Sealing ring; 34. Nozzle; 35. Spring compression chamber; 36. Channel one; 37. Piston body; 38. Conical sealing plug; 39. Conical bore; 40. Pressure balance channel; 41. Spring; 42. Accumulator chamber. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0019] The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings: like Figure 1-6 As shown, the reducer housing of the present invention includes: The upper housing 10 and the lower housing 11 are fixedly connected as one by bolts; The reduction gear 15 is rotatably mounted in the upper housing 10 and the lower housing 11 via a bearing; Sub-shell 14, the sub-shell 14 includes sub-shell one 12 and sub-shell two 13, the sub-shell one 12 and the sub-shell two 13 form a continuous channel, wherein the starting point of the channel of the sub-shell two 13 is below the lubricating oil level in the lower shell 11, and the ending point of the channel of the sub-shell one 12 is above the lubricating oil level in the upper shell 10. Oil pump 23 is driven by reduction gear 15 to perform liquid suction action, and oil pump 23 is connected to sub-casing 13; Oil filter 26 is disposed between the channel of the first sub-shell 12 and the second sub-shell 13 to filter the lubricating oil passing through the channel. The oil filter 26 is provided with a filter element. After the lubricating oil passes through the oil filter 26, it is filtered by the filter element, thereby filtering out metal shavings in the lubricating oil, realizing continuous filtration and ensuring that the quality of the lubricating oil is maintained well. An accumulator injector 18 is located at the end of the channel of the sub-casing 12. The accumulator injector 18 pressurizes the lubricating oil drawn by the oil pump 23 and then sprays it intermittently. The spray path of the accumulator injector 18 is directed to one side of the tooth groove of the reduction gear 15.

[0020] In one embodiment, the injection path of the accumulator injector 18 is directed towards one side of the tooth groove of the reduction gear 15. Specifically, the nozzle of the accumulator injector 18 is parallel to the circumference of the reduction gear 15 and points towards one end of the tooth groove of the reduction gear 15 (e.g., Figure 3 When the accumulator injector 18 sprays out lubricating oil, the lubricating oil flushes the tooth groove, and the kinetic energy washes away the metal chips in the tooth groove and ensures that there is a lubricating oil film on the surface of the tooth groove.

[0021] In one embodiment, the secondary housing 13 includes a secondary pipe 21 and a secondary pipe 22 connected to the secondary pipe 21. A sealing flange 17 is fixedly provided at one end of the secondary housing 13. Bolts are used to fix the sealing flange 17 in a blind hole on the outer wall of the lower housing 11, thereby fixing the secondary pipe 21. The oil pump 23 is fixed inside the lower housing 11 and is sealed and connected to the secondary pipe 21. A rotating shaft 25 is also rotatably provided inside the lower housing 11. An actuating gear 24 is fixed on the rotating shaft 25 by a key. The actuating gear 24 meshes with the reduction gear 15 and provides initial power through the reduction gear 15. The other end of the rotating shaft 25 is coaxially connected to the input shaft of the oil pump 23. Thus, the actuating gear 24 is driven to rotate by the reduction gear 15, which drives the rotating shaft 25 to rotate and drive the oil pump 23 to operate. After the oil pump 23 operates, it draws oil and sends it into the channel of the secondary pipe 21.

[0022] In one embodiment, the sub-shell 12 includes a pipe 16 and a sealing flange 17 fixed to the end of the pipe 16. The sealing flange 17 is fixed in a blind hole on the outer side wall of the upper shell 10 by bolts to fix the pipe 16. The upper end of the pipe 16 passes through a hole reserved in the side wall of the upper shell 10. The accumulator injector 18 is disposed in the upper shell 10 and is sealed and connected to the upper end of the pipe 16. The lower end of the pipe 16 is connected to the sub-pipe 20. The sub-pipe 22 and the sub-pipe 20 are connected through an oil filter 26.

[0023] In one embodiment, such as Figure 4The first auxiliary pipe 20 and the second auxiliary pipe 22 are respectively provided with an opening at their ends, which connects to the oil filter 26 via an oil inlet 27 and an oil outlet 28. Sealing rings are provided on the end faces of the oil outlet 28 and the oil inlet 27. The oil filter 26 contains a filter element. Oil enters the oil filter 26 from the second auxiliary pipe 22 via the oil inlet 27, is filtered by the filter element, and then enters the first auxiliary pipe 20 through the oil outlet 28. It then flows along the first pipe 16 into the accumulator injector 18. Oil filtration is achieved during this process. The upper end of the oil filter 26 is fixedly provided with a tail top 30, and the bolt 31 is threadedly connected to the tail top 30. A pad 29 is provided on one side of the secondary pipe 20. After the bolt 31 is rotated by a wrench, its upper end is pressed against the pad 29, thereby pressing the oil inlet 27 and the oil outlet 28 at the lower end of the oil filter 26 tightly. In this way, when disassembling the oil filter 26, it is only necessary to reverse the bolt 31 to make a gap between the bolt 31 and the pad 29, so that the oil inlet 27 and the oil outlet 28 can be pulled out and replaced with a new oil filter 26.

[0024] In one embodiment, to improve the stability of the sub-shell 12, a positioning protrusion 19 is fixedly provided at one end of the tube 16, and a blind hole is provided on the flange of the upper shell 10 for the positioning protrusion 19 to be inserted for fixing (e.g. Figure 2 , 4 ).

[0025] In one embodiment, to improve the stability of the secondary housing 13, a positioning protrusion 19 is fixedly provided at one end of the tube 21, and a blind hole is provided on the flange platform of the lower housing 11 for the positioning protrusion 19 to be inserted and fixed (e.g. Figure 2 , 4 Thus, the sub-shell 12 and the sub-shell 13 form a continuous channel, and are fixed by four points, including the positioning protrusion 19 and the sealing flange 17, ensuring safety and stability.

[0026] In one embodiment, the accumulator injector 18 has a threaded pipe connection 32 at one end for threaded sealing connection with the pipe 16. The accumulator injector 18 has an accumulator chamber 42, which is connected to the threaded pipe connection 32 via a channel 36. Thus, the oil in the pipe 16 enters the accumulator chamber 42 through the threaded pipe connection 32 and the channel 36. The accumulator injector 18 also includes a spring compression chamber 35, which contains a spring 41. A piston body 37 is slidably disposed within the spring compression chamber 35 and sealed to the inner wall of the spring compression chamber 35. The spring 41 provides an outward thrust to the piston body 37. Yes, the accumulator injector 18 has a nozzle 34 with a conical hole 39 connected to its front end by a threaded seal. The piston body 37 has a conical sealing plug 38 fixedly installed at its front end. The conical sealing plug 38 fits into the conical hole 39 to keep the conical hole 39 in a sealed state. When oil continuously enters the accumulator chamber 42, the pressure acts on the inner wall of the accumulator chamber 42. After reaching a specified threshold, the spring 41 is compressed, the piston body 37 retracts, and the conical sealing plug 38 retracts simultaneously. The conical hole 39 is opened, and at this time, the oil with a specified pressure in the accumulator chamber 42 is rapidly ejected and forms a jet stream under the action of the nozzle 34, which acts on the reduction gear 15.

[0027] In one embodiment, a sealing ring 33 is provided on the side wall of the accumulator injector 18 to improve the sealing performance of the connection with the end face of the pipe 16. In addition, a pressure balance channel 40 is provided in the accumulator injector 18 to directly connect the spring compression chamber 35 to the outside, so as to achieve air pressure balance and facilitate the extension and retraction of the spring 41.

[0028] It should be emphasized that the embodiments described in this invention are illustrative rather than limiting. Therefore, this invention is not limited to the embodiments described in the specific implementation. Any other implementation methods derived by those skilled in the art based on the technical solutions of this invention also fall within the scope of protection of this invention.

Claims

1. A reducer housing, characterized in that, include: The upper shell (10) and the lower shell (11) are fixedly connected as one by bolts; The reduction gear (15) is rotatably mounted in the upper housing (10) and the lower housing (11) via bearings; Sub-shell (14), the sub-shell (14) includes sub-shell one (12) and sub-shell two (13), the sub-shell one (12) and the sub-shell two (13) form a continuous channel, wherein the starting point of the channel of the sub-shell two (13) is below the lubricating oil level in the lower shell (11), and the ending point of the channel of the sub-shell one (12) is above the lubricating oil level in the upper shell (10); The oil pump (23) is driven by the reduction gear (15) to perform liquid suction action, and the oil pump (23) is connected to the secondary housing (13); An oil filter (26) is disposed between the channels of the first sub-shell (12) and the second sub-shell (13) to filter the lubricating oil passing through the channels. The oil filter (26) is provided with a filter element, and the lubricating oil is filtered by the filter element after passing through the oil filter (26). An accumulator injector (18) is located at the end of the channel of the sub-shell (12). The accumulator injector (18) pressurizes the lubricating oil drawn by the oil pump (23) and then sprays it intermittently. The spray path of the accumulator injector (18) points to one side of the tooth groove of the reduction gear (15).

2. A reducer housing according to claim 1, characterized in that: The injection path of the accumulator injector (18) is directed to one side of the tooth groove of the reduction gear (15). Specifically, the nozzle of the accumulator injector (18) is parallel to the circumference of the reduction gear (15) and points to one end of the tooth groove of the reduction gear (15). After the accumulator injector (18) sprays out the lubricating oil, the lubricating oil washes the tooth groove.

3. A reducer housing according to claim 2, characterized in that: The secondary housing (13) includes a secondary pipe (22) that connects to the secondary pipe (21). A sealing flange (17) is fixedly provided at one end of the secondary housing (13). Bolts fix the sealing flange (17) in a blind hole on the outer wall of the lower housing (11) and thus fix the secondary pipe (21). The oil pump (23) is fixed inside the lower housing (11) and is sealed and connected to the secondary pipe (21). A rotating shaft (25) is also rotatably provided inside the lower housing (11). An actuating gear (24) is fixed on the rotating shaft (25) by a key. The actuating gear (24) meshes with the reduction gear (15).

4. A reducer housing according to claim 3, characterized in that: The sub-shell component 1 (12) includes a pipe 1 (16) and a sealing flange (17) fixed to the end of the pipe 1 (16). The sealing flange (17) is fixed in a blind hole on the outer side wall of the upper shell (10) by bolts. The upper end of the pipe 1 (16) passes through a hole reserved in the side wall of the upper shell (10). The accumulator injector (18) is installed in the upper shell (10) and is sealed and connected to the upper end of the pipe 1 (16). The lower end of the pipe 1 (16) is connected to the sub-pipe 1 (20). The sub-pipe 2 (22) and the sub-pipe 1 (20) are connected through an oil filter (26).

5. A reducer housing according to claim 4, characterized in that: The first secondary pipe (20) and the second secondary pipe (22) are respectively provided with an opening at their ends to connect with the oil filter (26) via an oil inlet (27) and an oil outlet (28). The end faces of the oil outlet (28) and the oil inlet (27) are provided with sealing rings. The oil filter (26) is provided with a filter element. The oil enters the oil filter (26) from the second secondary pipe (22) through the oil inlet (27), is filtered by the filter element, and then enters the first secondary pipe (20) through the oil outlet (28). Inside, it then enters the accumulator injector (18) along the first pipe (16), and oil filtration is achieved in this process. The upper end of the oil filter (26) is fixedly provided with a tail top (30), and the bolt (31) is threadedly connected to the tail top (30). A pad (29) is provided on one side of the first secondary pipe (20). After the bolt (31) is rotated by a wrench, its upper end is pressed against the pad (29), thereby pressing the oil inlet (27) and oil outlet (28) at the lower end of the oil filter (26).

6. A reducer housing according to claim 5, characterized in that: One end of the tube (16) is fixedly provided with a positioning protrusion (19), and a blind hole is provided on the flange of the upper housing (10) for the positioning protrusion (19) to be inserted for fixing.

7. A reducer housing according to claim 5, characterized in that: One end of the second tube (21) is fixedly provided with a positioning protrusion (19), and a blind hole is provided on the flange platform of the lower housing (11) for the positioning protrusion (19) to be inserted and fixed.

8. A reducer housing according to claim 4, characterized in that: The accumulator injector (18) has a threaded pipe connection (32) at one end for threaded sealing connection with the pipe (16). The accumulator injector (18) has an accumulator chamber (42). The accumulator chamber (42) and the threaded pipe connection (32) are connected through a channel (36). Thus, the oil in the pipe (16) enters the accumulator chamber (42) through the threaded pipe connection (32) and the channel (36). The accumulator injector (18) also includes a spring compression chamber (35). A spring (41) is provided inside, and the piston body (37) is slidably disposed in the spring compression chamber (35) and sealed with the inner wall of the spring compression chamber (35). The spring (41) provides outward thrust potential energy to the piston body (37). The front end of the accumulator injector (18) is threadedly sealed with a nozzle (34) with a conical hole (39). A conical sealing plug (38) is fixedly provided at the front end of the piston body (37). The conical sealing plug (38) fits into the conical hole (39) to keep the conical hole (39) in a sealed state.

9. A reducer housing according to claim 8, characterized in that: A sealing ring (33) is provided on the side wall of the accumulator injector (18) to improve the sealing performance of the connection with the end face of the pipe (16). In addition, a pressure balance channel (40) is provided in the accumulator injector (18) to directly connect the spring compression chamber (35) to the outside.

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