Improved stable transmission type gear reducer

Abstract

The invention relates to the technical field of speed reducers, and discloses an improved stable transmission type gear speed reducer which is used for improving the quality of lubricating oil and comprises a box body, a transmission cavity formed in the side face of the box body, a power sealing plate covering an opening of the transmission cavity, a gear set arranged in the transmission cavity and a transmission shaft. The circulating assembly is arranged between the transmission cavity and the separation cavity, the separation cavity is formed in the side, away from the transmission cavity, of the box body, and the circulating sealing plate covers an opening of the separation cavity. According to the improved stable transmission type gear reducer, by arranging the backflow hole, lubricating oil in the transmission cavity continuously flows to the separation cavity, meanwhile, scrap iron generated by abrasion of the gear set can be taken away, the scrap iron is prevented from being accumulated in the transmission cavity, and meanwhile, the scrap iron is precipitated and separated in the process that the lubricating oil flows to the circulation assembly through the precipitation auxiliary assembly; the scrap iron is prevented from being mixed in lubricating oil to affect the lubricating effect of the gear set, and long-time stable operation of the gear set is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of speed reducer, in particular to an improved stable transmission type gear reducer. BACKGROUND

[0002] The efficient operation and performance of electric vehicles depend heavily on the precise empowerment of key equipment in the transmission system. Gear reducer is the core power hub that connects the drive motor and the wheels, directly determining the vehicle's starting acceleration performance, endurance efficiency and ride smoothness.

[0003] Gear reducer is a mechanical device that achieves speed reduction and torque increase through gear meshing transmission. Its core consists of gears, shafts, bearings, housings and other components. It uses a small gear to drive a large gear at different speeds to convert high-speed low-torque input power into low-speed high-torque output to meet the power needs of various equipment. It has high transmission efficiency, strong load capacity, smooth operation, compact structure and other characteristics, and is widely used in industrial production, logistics transportation, robots, automobile manufacturing and other fields. Through precise gear machining, reasonable lubrication system and stable support structure, it ensures long-term reliable operation under complex conditions such as high load and high speed, and is an indispensable key equipment in modern mechanical transmission systems.

[0004] The patent with patent number CN118602073A discloses a gear box of a speed reducer suitable for planetary gear transmission. It belongs to the technical field of transmission devices and includes an upper box and a lower box. The lower box has a first circular bearing seat at one end, an input shaft hole on the first circular bearing seat, semicircular seat grooves on both sides of the lower box, and a lower tooth edge at the opening of the lower box. The upper box includes a first box and a second box that are split. The first box has a slot on one side for splicing the second box, and the second box has a slot on one side for splicing the first box. When the first box and the second box are spliced into a complete upper box, they form an upper cavity corresponding to the lower cavity of the lower box, and the first end of the first box and the first end of the second box form a semicircular seat together. The first box and the second box have second and third circular bearing seats on the outside of the two sides for forming the upper cavity, and output shaft holes on the second and third circular bearing seats.

[0005] The existing technology has the following defects: The stability of the gear reducer directly determines the working accuracy, energy consumption and service life of the entire equipment. The wear and tear of the internal transmission components and the resulting contamination of the lubricating oil are major problems that hinder its long-term stable operation. In the prior art, the gear engagement and bearing rolling of the gear reducer inevitably produce wear during long-term operation, and the generated metal particles such as iron filings will directly mix into the lubricating oil. These iron filings not only flow in the equipment along with the circulation of the lubricating oil, but also form a 'abrasive wear' effect at the key parts such as the gear engagement area and the bearing raceway. The iron filings are pressed and embedded into the friction surface, which aggravates the secondary damage such as tooth surface scratch and bearing pitting, and causes the transmission gap to gradually expand and the vibration noise to significantly increase. In severe cases, it may even cause gear tooth breakage and bearing seizure. SUMMARY

[0006] In view of the problem of lubricating oil pollution in the prior art, an improved stable transmission type gear reducer is provided.

[0007] The present application provides an improved stable transmission type gear reducer, which aims to improve the quality of lubricating oil.

[0008] The technical scheme of the present application is as follows: an improved stable transmission type gear reducer is used to improve the quality of lubricating oil, which comprises a box body, a transmission cavity opened on the side surface of the box body, a power sealing plate covering the opening of the transmission cavity, a gear set and a transmission shaft arranged in the transmission cavity, a circulating assembly arranged between the transmission cavity and a separation cavity, a separation cavity opened on the side of the box body away from the transmission cavity, a circulating sealing plate covering the opening of the separation cavity, a backflow hole opened between the transmission cavity and the separation cavity, and a sediment auxiliary assembly arranged in the separation cavity. The sediment auxiliary assembly specifically comprises a horizontal partition plate and a vertical partition plate, and an upper flow passage and a lower flow passage are respectively opened at the upper and lower ends of the vertical partition plate. The bottom wall height of the transmission cavity is higher than that of the separation cavity, one end of the backflow hole extends to the bottom wall of the transmission cavity, and the other end is inclined downward to penetrate into the separation cavity, the upper end of the vertical partition plate is fixed to the bottom of the horizontal partition plate, the lower end of the vertical partition plate stands on the bottom wall of the separation cavity, the vertical partition plates are linearly arranged and symmetrically arranged on both sides of the backflow hole, the upper flow passage is arranged between the two ends of the horizontal partition plate and the inner walls of the separation cavity, and the circulating assembly is located above the horizontal partition plate.

[0009] Further, the circulating assembly specifically comprises a through hole communicating the transmission cavity and the separation cavity, an input pump arranged in the separation cavity, and a jet pipe arranged in the transmission cavity. The jet pipe penetrates into the separation cavity and is connected with the input pump, and the other end of the jet pipe extends to the lower side of the gear set, and the outer side of the input pump is connected with a driving device.

[0010] Further, the lubricating oil in the separation cavity immerses the input pump, and the liquid level of the lubricating oil in the transmission cavity is below the gear set.

[0011] Further, the driving device is a driving motor.

[0012] Further, the driving device is a transmission member connected with the transmission shaft.

[0013] Further, the bottom wall of the separation cavity is provided with a sedimentation groove, and the sedimentation groove is located below the backflow hole, and the bottom wall of the sedimentation groove is in a V shape.

[0014] Further, the sedimentation groove is provided with a separation auxiliary assembly, which specifically comprises a rotating shaft arranged in the sedimentation groove, a mounting seat arranged outside the rotating shaft, a plug rod arranged in the mounting seat, a hollow plate arranged at the end of the plug rod away from the mounting seat, and a magnetic plate arranged in the hollow plate. The rotating shaft is vertically distributed with the backflow hole, the hollow plate is opposite to the opening of the backflow hole, and the thickness of the magnetic plate is less than the width of the cavity in the hollow plate.

[0015] Further, the side surface of the circulating sealing plate is provided with an oil discharge port and an oil supplement port, and the oil discharge port and the oil supplement port are respectively provided with an oil discharge plug and an oil supplement plug. The outer contour of the oil discharge port is tangent to the bottom contour of the sedimentation groove, the oil supplement port is located above the sedimentation auxiliary assembly, and the blocking member blocks the opening on the side of the oil discharge port close to the circulating sealing plate.

[0016] Further, a reset spring is arranged between the sliding rod and the inner wall of the sliding groove.

[0017] Further, a traction rope is arranged between the sliding rod and the inner wall of the sliding groove, the blocking member is a hollow air bag, and the end of the sliding rod in the sliding groove is provided with an air hole in communication with the blocking member.

[0018] The beneficial effects of the present application are as follows: 1. By arranging the backflow hole, the lubricating oil in the transmission cavity continuously flows to the separation cavity, and the iron filings generated by the wear of the gear set can also be taken away, avoiding the accumulation of iron filings in the transmission cavity. At the same time, the sedimentation auxiliary assembly is used to precipitate and separate the iron filings during the flow of the lubricating oil to the circulating assembly, so as to avoid the influence of the iron filings mixed in the lubricating oil on the lubricating effect of the gear set, and to facilitate the long-term stable operation of the gear set.

[0019] 2. By arranging the sedimentation groove, when the lubricating oil flows into the separation cavity through the backflow hole, part of the iron filings will sink into the sedimentation groove under the influence of gravity, and the iron filings separated by the sedimentation auxiliary assembly will also gradually slide into the sedimentation groove. In this way, the iron filings can be collected, and the sedimentation groove is not in the circulation route of the lubricating oil, so that the iron filings in the lubricating oil can be avoided from being rolled into the circulating lubricating oil again.

[0020] 3, by setting the separation auxiliary assembly, so that the lubricating oil from the backflow hole into the separation cavity, the iron filings in the lubricating oil are adsorbed on the surface of the hollow plate under the influence of the magnetic plate, with the rotation of the hollow plate, the magnetic plate is offset, so that the iron filings adsorbed on the surface of the hollow plate are separated and sink into the sedimentation tank, so as to further improve the purification effect of the lubricating oil, ensure the purity of the lubricating oil and enhance the lubricating effect.

[0021] 4, by setting the oil discharge port, the lubricating oil in the separation cavity and the iron filings deposited in the sedimentation tank can be discharged, new lubricating oil can be supplemented through the oil supplementing port, and the discharge port is still closed by the blocking piece when the sealing bolt is loosened, so that the lubricating oil flows out when the sealing bolt is completely loosened away from the discharge port, so that the staff does not need to rotate the sealing bolt against the flowing lubricating oil, avoiding the hands from being contaminated with a large amount of lubricating oil. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a perspective view of the present application; Figure 2 It is a schematic view of the power sealing plate and the circulating sealing plate after being split; Figure 3 It is a perspective view of the present application Figure 2 Second perspective view schematic diagram; Figure 4 It is a schematic view of the separation cavity inside the present application; Figure 5 It is a disassembled view of the accessories in the separation cavity of the present application; Figure 6 It is a schematic view of the circulating assembly of the present application; Figure 7 It is a schematic view of the sedimentation auxiliary assembly of the present application; Figure 8 It is a schematic view of the separation auxiliary assembly of the present application; Figure 9 It is a schematic view of the hollow plate inside the present application; Figure 10 It is a front view of the present application; Figure 11 It is a front view of the separation cavity of the present application; Figure 12 It is a side view of the present application; Figure 13 It is a perspective view of the present application Figure 12 Enlarged view at A; Figure 14 It is a sectional view of the separation auxiliary assembly of the present application; Figure 15 It is a schematic view of the circulating sealing plate of the present application; Figure 16 It is a schematic view of the oil discharge plug of the present application; Figure 17 It is a perspective view of the present applicationFigure 16 Second perspective view.

[0023] In the figure: 1, box; 2, transmission cavity; 21, separation cavity; 3, power sealing plate; 31, circulating sealing plate; 4, gear set; 5, transmission shaft; 6, circulating assembly; 61, through hole; 62, input pump; 63, injection pipe; 7, backflow hole; 8, sedimentation tank; 9, sedimentation auxiliary assembly; 91, horizontal partition; 92, vertical partition; 93, upflow port; 94, downflow port; 10, separation auxiliary assembly; 101, rotating shaft; 102, mounting seat; 103, insertion rod; 104, hollow plate; 105, magnetic plate; 11, oil discharge port; 12, oil discharge plug; 121, sealing bolt; 122, sliding groove; 123, sliding rod; 124, plugging piece; 13, oil supplement port; 14, oil supplement plug. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0025] Example 1, refer to Figures 1-14 For the first embodiment of the present application, an improved stable transmission type gear reducer is provided for improving the quality of lubricating oil, which comprises a box 1, a transmission cavity 2 opened on the side of the box 1, a power sealing plate 3 covering the opening of the transmission cavity 2, a gear set 4 and a transmission shaft 5 arranged in the transmission cavity 2, further comprising a circulating assembly 6 arranged between the transmission cavity 2 and the separation cavity 21, a separation cavity 21 opened on the side of the box 1 away from the transmission cavity 2, a circulating sealing plate 31 covering the opening of the separation cavity 21, a backflow hole 7 opened between the transmission cavity 2 and the separation cavity 21, and a sedimentation auxiliary assembly 9 arranged in the separation cavity 21.

[0026] The sedimentation auxiliary assembly 9 specifically comprises a horizontal partition 91 and a vertical partition 92, and an upflow port 93 and a downflow port 94 are respectively opened at the upper and lower ends of the vertical partition 92.

[0027] Specifically, the box body 1 is cast into shape, the power sealing plate 3 and the circulation sealing plate 31 are fixed to the box body 1 through bolts, the bottom wall height of the transmission cavity 2 is higher than that of the separation cavity 21, the gear set 4 is composed of a plurality of gears of different sizes and is meshed with each other, the transmission shaft 5 is provided with two, which are divided into an input shaft and an output shaft, the input shaft and the output shaft respectively penetrate to both sides of the box body 1, one end of the backflow hole 7 extends to the bottom wall of the transmission cavity 2, and the other end is inclined downward to penetrate into the separation cavity 21, so that the lubricating oil in the transmission cavity 2 flows into the separation cavity 21 through the backflow hole 7, the bottom wall of the transmission cavity 2 is inclined to the backflow hole 7, so as to facilitate the collection of the lubricating oil and iron filings in the transmission cavity 2, the upper end of the vertical partition plate 92 is fixed to the bottom of the horizontal partition plate 91, the lower end of the vertical partition plate 92 is vertically arranged on the bottom wall of the separation cavity 21, the vertical partition plate 92 is linearly arranged and symmetrically arranged on both sides of the backflow hole 7, the top wall of the upper and lower flow ports 94 is designed to be inclined, so that the opening close to the backflow hole 7 is smaller than the opening on the other side, and the circulation assembly 6 is located above the horizontal partition plate 91.

[0028] By arranging the backflow hole 7, the lubricating oil in the transmission cavity 2 continuously flows to the separation cavity 21, and the iron filings generated by the wear of the gear set 4 can also be taken away, so that the iron filings are prevented from accumulating in the transmission cavity 2, and the sedimentation auxiliary assembly 9 is used to separate the iron filings from the lubricating oil during the flow of the lubricating oil to the circulation assembly 6, so that the iron filings are prevented from mixing with the lubricating oil and affecting the lubricating effect of the gear set 4, and the long-term stable operation of the gear set 4 is facilitated.

[0029] The circulation assembly 6 specifically comprises a through hole 61 communicating the transmission cavity 2 and the separation cavity 21, an input pump 62 arranged in the separation cavity 21, and a jet pipe 63 arranged in the transmission cavity 2.

[0030] Specifically, the jet pipe 63 penetrates into the separation cavity 21 and is connected with the input pump 62, the other end of the jet pipe 63 extends to the lower side of the gear set 4, the jet pipe 63 sprays the lubricating oil at the meshing position of the gears, and the outer side of the input pump 62 is connected with a driving device; the lubricating oil in the separation cavity 21 immerses the input pump 62, and the liquid level of the lubricating oil in the transmission cavity 2 is below the gear set 4.

[0031] By arranging the circulation assembly 6, the jet pipe 63 sprays the lubricating oil at the meshing position of the gears to lubricate them, so as to reduce the wear of the gear set 4 and also reduce the resistance of the lubricating oil to the operation of the gear set 4, thereby ensuring the transmission efficiency and the output power is more stable.

[0032] Specifically, the bottom wall of the separation cavity 21 is provided with a sedimentation groove 8, and the sedimentation groove 8 is located below the backflow hole 7, the bottom wall of the sedimentation groove 8 is "V"-shaped, the intersection between the inner wall of the sedimentation groove 8 and the bottom wall of the separation cavity 21 is provided with a guide inclined surface, and the bottom wall of the separation cavity 21 is inclined to the sedimentation groove 8.

[0033] By setting the sediment tank 8, when the lubricating oil flows into the separation cavity 21 through the backflow hole 7, part of the iron filings will sink into the sediment tank 8 under the influence of gravity, and the iron filings separated by the separation auxiliary assembly 9 will also gradually slide into the sediment tank 8, so that the iron filings can be collected, and at the same time, the sediment tank 8 is not in the circulation route of the lubricating oil, so that the iron filings in it can also be avoided to be rolled into the circulating lubricating oil again.

[0034] The separation auxiliary assembly 10 is arranged in the sediment tank 8, and specifically includes a rotating shaft 101 arranged in the sediment tank 8, a mounting seat 102 arranged outside the rotating shaft 101, a plug rod 103 arranged inside the mounting seat 102, a hollow plate 104 arranged at one end of the plug rod 103 away from the mounting seat 102, and a magnetic plate 105 arranged inside the hollow plate 104.

[0035] Specifically, the rotating shaft 101 is inserted into the guide inclined surface at both ends and rotationally connected therewith, the rotating shaft 101 is vertically distributed with the backflow hole 7, the mounting seat 102 is welded to the outside of the rotating shaft 101, the mounting seat 102 is provided with four groups, each group has two, and is arranged in a ring array, the plug rod 103 is clamped in the mounting seat 102, the hollow plate 104 is opposite the opening of the backflow hole 7, so that the lubricating oil flowing out of the backflow hole 7 impacts on the surface of the hollow plate 104, the hollow plate 104 is divided into two halves from the middle and fixed by bolts, the thickness of the magnetic plate 105 is less than the width of the internal cavity of the hollow plate 104, the magnetic plate 105 is wrapped with a buffer cushion on the outside, so that the magnetic plate 105 can slide slowly in the hollow plate 104, and the magnetic plate 105 can generate an attractive force to the iron filings.

[0036] By arranging the separation auxiliary assembly 10, when the lubricating oil flows into the separation cavity 21 from the backflow hole 7, the iron filings in the lubricating oil are adsorbed on the surface of the hollow plate 104 under the influence of the magnetic plate 105, with the rotation of the hollow plate 104, the magnetic plate 105 is offset, so that the iron filings adsorbed on the surface of the hollow plate 104 are separated and sink into the sediment tank 8, so as to further improve the purification effect of the lubricating oil, ensure the purity of the lubricating oil, and enhance the lubricating effect.

[0037] The above working principle is that the device is started, the gear set 4 and the transmission shaft 5 start to rotate, and at the same time, the input pump 62 is started, the lubricating oil in the separation cavity 21 is sprayed on the gear set 4 through the spray pipe 63, then the lubricating oil drops from the surface of the gear set 4, and the iron filings generated by the wear of the gear set 4 are also washed off by the lubricating oil, the lubricating oil in the transmission cavity 2 and the iron filings mixed therein gather towards the backflow hole 7, and then flow into the separation cavity 21 through the backflow hole 7.

[0038] Lubricating oil from the backflow hole 7 into the separation cavity 21, impact on the surface of the hollow plate 104, so will push the hollow plate 104 and rotating shaft 101 rotate clockwise, hollow plate 104 in the magnetic plate 105 is located near the backflow hole 7, one side, the iron filings in contact with the hollow plate 104 is attracted by the magnetic plate 105, attached to the surface of the hollow plate 104, when the hollow plate 104 rotates to the right and below, the magnetic plate 105 is affected by gravity gradually sliding away from the backflow hole 7 (also sliding down), with the magnetic plate 105 away, the iron filings on the surface of the hollow plate 104 lose the attraction, from the surface of the hollow plate 104, sink into the sedimentation tank 8, then the hollow plate 104 to the left and above, the hollow plate 104 upside down, the magnetic plate 105 slides down again, as shown in Figure 14

[0039] Lubricating oil into the separation cavity 21, begin to flow to both sides, lubricating oil is first blocked by the vertical partition plate 92, then from the upper flow through the mouth 93, so the lubricating oil in turn through the upper flow through the mouth 93, a small amount of iron filings in it will be deposited in the vertical partition plate 92 between, these deposited iron filings along the bottom wall of the separation cavity 21 slide, through the lower flow through the mouth 94 finally into the sedimentation tank 8, lubricating oil by the upper flow to the horizontal partition plate 91 above.

[0040] Embodiment 2, refer to Figures 1-14 , the second embodiment of the present application, which is different from the first embodiment is: the driving device is a driving motor, the driving motor drives the input pump 62 to suck lubricating oil.

[0041] The rest of the structure and structure of example 1 is the same.

[0042] Embodiment 3, refer to Figures 1-14 , the third embodiment of the present application, which is different from the first embodiment is: the driving device is connected with the transmission shaft 5 transmission member, the transmission member can be a transmission belt or transmission gear, the transmission shaft 5 through the transmission member to the input pump 62, so that the input pump 62 to suck lubricating oil.

[0043] The rest of the structure and structure of example 1 is the same.

[0044] Embodiment 4, refer to Figures 10-17 , the fourth embodiment of the present application, which is different from the first embodiment is: the side of the circulation sealing plate 31 is provided with the oil outlet 11 and the oil supplement port 13, the oil outlet 11 and the oil supplement port 13 are respectively provided with the oil plug 12 and the oil supplement plug 14, the oil plug 12 specifically includes the sealing bolt 121 arranged in the oil outlet 11, the sliding groove 122 arranged in the sealing bolt 121 close to the circulation sealing plate 31 one end, the sliding rod 123 arranged in the sliding groove 122, the blocking member 124 arranged in the sliding rod 123 close to the circulation sealing plate 31 one end.​

[0045] Specifically, the outer profile of the oil discharge port 11 is tangent to the bottom profile of the sediment tank 8, the oil supplement port 13 is located above the sediment auxiliary assembly 9, the oil supplement plug 14 is threadedly connected in the oil supplement port 13, the sealing bolt 121 is threadedly connected in the oil discharge port 11, the sliding rod 123 is slidingly connected in the sliding groove 122, the sliding rod 123 is fixedly connected with the blocking piece 124, and the blocking piece 124 blocks the opening of the oil discharge port 11 near the circulating sealing plate 31.

[0046] By arranging the oil discharge port 11, the lubricating oil in the separation cavity 21 and the iron scraps deposited in the sediment tank 8 can be discharged, and by arranging the oil supplement port 13, new lubricating oil can be supplemented. When the sealing bolt 121 is loosened, the blocking piece 124 still blocks the oil discharge port 11, and when the sealing bolt 121 is completely loosened and separated from the oil discharge port 11, the blocking piece 124 is loosened, so that the lubricating oil flows out. In this way, the staff does not need to rotate the sealing bolt 121 against the flowing lubricating oil, and the hands are not contaminated with a large amount of lubricating oil.

[0047] The rest of the structure is the same as that of example 1 Example 5, refer to Figures 10-17 As the fifth embodiment of the present application, the difference between this embodiment and the fourth embodiment is that a reset spring is arranged between the sliding rod 123 and the inner wall of the sliding groove 122, and the reset spring is in a compressed state and applies a pushing force to the sliding rod 123.

[0048] By arranging the reset spring, during the loosening process of the rotation of the sealing bolt 121, the sealing bolt 121 is constantly moved outward from the oil discharge port 11, but the reset spring gradually expands and continuously applies a pushing force to the sliding rod 123, so that the blocking piece 124 is always in a sealed state. After the sealing bolt 121 is completely separated from the oil discharge port 11, the reset spring is completely expanded and no longer applies a pushing force to the sliding rod 123, and the blocking piece 124 loses the sealing effect. At this time, the oil discharge plug 12 is completely pulled out of the oil discharge port 11, and the lubricating oil also flows out of the oil discharge port 11.

[0049] The rest of the structure is the same as that of example 4 Example 6, refer to Figures 10-17 As the sixth embodiment of the present application, the difference between this embodiment and the fourth embodiment is that a traction rope is arranged between the sliding rod 123 and the inner wall of the sliding groove 122, the blocking piece 124 is a hollow air bag, a gas hole is arranged at one end of the sliding rod 123 in the sliding groove 122 and communicates with the blocking piece 124, a one-way flap is arranged in the gas hole, so that air can only flow into the blocking piece 124, and pushing the one-way flap in the direction of the blocking piece 124 can discharge the air in the blocking piece 124, and a sealing ring is arranged on the outside of the sliding rod 123.

[0050] By setting the traction rope, when sealing, the sealing bolt 121 pushes the sealing piece 124 close to the opening of the oil discharge port 11 through the sliding rod 123 and closes it, and then the sealing bolt 121 continuously moves into the oil discharge port 11, the space in the sliding groove 122 becomes smaller, air flows into the sealing piece 124 through the air hole, the sealing piece 124 inflates and clamps in the oil discharge port 11, when discharging oil, the sealing bolt 121 is removed by rotating, and then the sealing piece 124 is pulled out of the oil discharge port 11 through the traction rope, and the lubricating oil flows out of the oil discharge port 11.

[0051] The rest of the structure is the same as that of example 4.

[0052] It should be noted that the above examples are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. An improved stable transmission gear reducer for improving lubricating oil quality, comprising a housing (1), a transmission cavity (2) opened on the side of the housing (1), a power sealing plate (3) covering the opening of the transmission cavity (2), a gear set (4) and a transmission shaft (5) disposed in the transmission cavity (2), characterized in that: It also includes a circulation assembly (6) disposed between the transmission chamber (2) and the separation chamber (21), a separation chamber (21) opened on the side of the housing (1) away from the transmission chamber (2), a circulation sealing plate (31) covering the opening of the separation chamber (21), a reflux hole (7) opened between the transmission chamber (2) and the separation chamber (21), and a sedimentation auxiliary assembly (9) disposed in the separation chamber (21); The sedimentation auxiliary component (9) specifically includes a horizontal partition (91) and a vertical partition (92), with an upper flow port (93) and a lower flow port (94) respectively opened at the upper and lower ends of the vertical partition (92). The bottom wall height of the transmission cavity (2) is higher than the bottom wall height of the separation cavity (21). One end of the return hole (7) extends to the bottom wall of the transmission cavity (2), and the other end slopes downward and penetrates into the separation cavity (21). The upper end of the vertical partition (92) is fixed to the bottom of the horizontal partition (91), and the lower end of the vertical partition (92) stands on the bottom wall of the separation cavity (21). The vertical partitions (92) are arranged in a linear array and symmetrically arranged on both sides of the return hole (7). The upper flow port is set between the two ends of the horizontal partition (91) and the two sides of the inner wall of the separation cavity (21). The circulation component (6) is located above the horizontal partition (91).

2. The improved stable transmission gear reducer according to claim 1, characterized in that: The circulation component (6) specifically includes a through hole (61) connecting the transmission chamber (2) and the separation chamber (21), an input pump (62) disposed inside the separation chamber (21), and an injection pipe (63) disposed inside the transmission chamber (2). The injection pipe (63) extends into the separation chamber (21) and is connected to the input pump (62). The other end of the injection pipe (63) extends to the bottom of the gear set (4). The drive device is connected to the outside of the input pump (62).

3. The improved stable transmission gear reducer according to claim 2, characterized in that: The lubricating oil in the separation chamber (21) is immersed in the input pump (62), and the lubricating oil level in the transmission chamber (2) is located below the gear set (4).

4. The improved stable transmission gear reducer according to claim 2, characterized in that: The driving device is a drive motor.

5. The improved stable transmission gear reducer according to claim 2, characterized in that: The driving device is a transmission component connected to the transmission shaft (5).

6. The improved stable transmission gear reducer according to claim 1, characterized in that: The bottom wall of the separation chamber (21) is provided with a sedimentation tank (8), and the sedimentation tank (8) is located below the reflux hole (7). The bottom wall of the sedimentation tank (8) is "V" shaped.

7. The improved stable transmission gear reducer according to claim 6, characterized in that: The sedimentation tank (8) is provided with a separation auxiliary component (10). The separation auxiliary component (10) specifically includes a rotating shaft (101) provided in the sedimentation tank (8), a mounting base (102) provided on the outside of the rotating shaft (101), an insert rod (103) provided inside the mounting base (102), a hollow plate (104) provided at the end of the insert rod (103) away from the mounting base (102), and a magnetic plate (105) provided inside the hollow plate (104). The rotating shaft (101) is perpendicular to the reflux hole (7), the hollow plate (104) is directly opposite the opening of the reflux hole (7), and the thickness of the magnetic plate (105) is less than the width of the cavity inside the hollow plate (104).

8. The improved stable transmission gear reducer according to claim 6, characterized in that: The circulating sealing plate (31) has an oil drain port (11) and an oil replenishment port (13) on its side. An oil drain plug (12) and an oil replenishment plug (14) are respectively provided in the oil drain port (11) and the oil replenishment port (13). The oil drain plug (12) specifically includes a sealing bolt (121) provided inside the oil drain port (11), a sliding groove (122) provided at one end of the sealing bolt (121) near the circulating sealing plate (31), a sliding rod (123) provided in the sliding groove (122), and a sealing member (124) provided at one end of the sliding rod (123) near the circulating sealing plate (31). The outer contour of the oil drain (11) is tangent to the bottom contour of the sedimentation tank (8), the oil replenishment port (13) is located above the sedimentation auxiliary component (9), and the sealing component (124) is sealed at the opening of the oil drain (11) near the circulation sealing plate (31).

9. The improved stable transmission gear reducer according to claim 8, characterized in that: A reset spring is provided between the sliding rod (123) and the inner wall of the sliding groove (122).

10. The improved stable transmission gear reducer according to claim 8, characterized in that: A traction rope is provided between the sliding rod (123) and the inner wall of the sliding groove (122). The sealing component (124) is a hollow airbag. One end of the sliding rod (123) located in the sliding groove (122) has an air hole that communicates with the sealing component (124).

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