Automatic transmission with self-lubricating structure

Abstract

The application relates to the field of gearbox lubricating structure, and discloses an automatic gearbox with a lubricating structure. Two groups of nozzles are arranged on the outer side of the gear set, and the nozzles are respectively arranged on the upper side and the lower side of the gear set. During the working process of the gearbox, the output shaft and the input shaft rotate under the drive of the gear set, the lubricating nozzles spray lubricating oil between the two groups of gears to lubricate the gears, and the cleaning nozzles spray lubricating oil below the two groups of gears to flush away the iron filings generated by the friction of the gears, so that the iron filings cannot continuously exist between the gear teeth of the gear set, the friction between the two groups of gears is not increased, and the abrasion is not aggravated, the service life of the gearbox is effectively prolonged, the outer cover is wrapped on the outer side of the gear set, the high-speed rotating gear set cannot splash the lubricating oil everywhere, a large piece of oil stain cannot be formed, and the cleaning difficulty is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of gearbox lubrication structure, in particular to an automatic gearbox with lubrication structure. BACKGROUND

[0002] The automatic gearbox is a mechanical device that can automatically adjust the speed of the equipment, which is often used in cars, fans and generators to adjust the driving shaft speed of the equipment. The working principle of the automatic gearbox is to change the original rotation speed and output rotation speed by matching gears of different sizes. In this process, in order to reduce the friction between the gears, the gears need to be lubricated.

[0003] Since the friction between the gears cannot be completely eliminated, the gears are always worn out. The iron filings falling off due to wear will mix in the lubricating oil, which will reduce the lubricating effect of the lubricating oil, and some iron filings will be adhered between the teeth of the gears, further increasing the friction between the two. Therefore, we propose an automatic gearbox with lubrication structure to solve the problem. SUMMARY

[0004] 1. Technical problem to be solved

[0005] In view of the problems existing in the prior art, the purpose of the present application is to provide an automatic gearbox with lubrication structure. In this scheme, two groups of nozzles are arranged on the outside of the gear set, and the nozzles are respectively distributed on the upper and lower sides of the gear set. In this way, during the operation of the gearbox, the output shaft and the input shaft rotate under the transmission of the gear set, and the lubricating nozzles spray lubricating oil between the two gears to lubricate the two gears. At the same time, the cleaning nozzles spray lubricating oil below the two gears to wash away the iron filings generated by the friction of the two gears, so as to avoid the continuous existence of these iron filings between the teeth of the gear set, which will increase the friction between the two gears and aggravate the wear. This effectively prolongs the service life of the gearbox. At the same time, the outer cover is wrapped on the outside of the gear set to avoid the lubricating oil being thrown everywhere by the high-speed rotating gear set, so as to reduce the cleaning difficulty.

[0006] 2. Technical scheme

[0007] To solve the above problems, the present application adopts the following technical scheme.

[0008] The utility model provides an automatic gearbox with lubricating structure, which comprises a box shell, the inside of the box shell is filled with lubricating oil, an output shaft and an input shaft are respectively arranged at the two ends of the box shell, a gear shifting gear set is installed between the output shaft and the input shaft, the gear shifting gear set is composed of two groups of gears with different sizes, the gear shifting gear set is located above the liquid level of the lubricating oil, a bottom bin is arranged at the bottom of the box shell, a receiving disc is installed at the opening of the bottom bin, a lubricating mechanism is installed around the gear shifting gear set in the inside of the box shell, the inside of the box shell is divided into two intervals by a partition plate fixedly connected to the inside of the box shell, an outer cover is fixedly connected to the side of the partition plate close to the gear shifting gear set, the gear shifting gear set is wrapped in the outer cover, two open ports are arranged on the upper and lower sides of the outer cover, the lower open port exposes the bottoms of the two groups of gears, and the upper open port is located at the meshing position of the two groups of gears, two cleaning nozzles and a lubricating nozzle are arranged on the inner wall of the box shell, one end of each of the cleaning nozzles and the lubricating nozzle is connected to a suction pump, the suction pump is immersed in the lubricating oil, the two cleaning nozzles are respectively aimed at the two groups of gear shifting gear sets through the lower open port, and the lubricating nozzle is connected to the upper open port, by arranging the two groups of nozzles on the outer side of the gear shifting gear set, the output shaft and the input shaft rotate under the transmission of the gear shifting gear set during the operation of the gearbox, the lubricating nozzle sprays the lubricating oil between the two groups of gears to lubricate the two groups of gears, and the cleaning nozzles spray the lubricating oil below the two groups of gears to flush away the iron filings generated by the friction of the two groups of gears, so that the iron filings cannot continuously exist between the teeth of the gear shifting gear set, the friction between the two groups of gears is reduced, the wear is reduced, and the service life of the gearbox is effectively prolonged, and the outer cover is wrapped on the outer side of the gear shifting gear set, so that the lubricating oil sprayed by the high-speed rotating gear shifting gear set is not scattered everywhere, a large amount of oil stains are not formed, and the cleaning difficulty is reduced.

[0009] Furthermore, air holes are arranged on the inner wall of the box shell and located above the liquid level of the lubricating oil, the cleaning nozzles are communicated with the air holes, so that when the cleaning nozzles suck the lubricating oil to flush the gear shifting gear set, part of air is sucked through the air holes, the mixture of the air and the lubricating oil enhances the flushing pressure and improves the cleaning effect, and the air bubbles mixed in the lubricating oil can also enhance the cleaning effect when the air bubbles burst.

[0010] Further, the inner cavity of the box shell and the bottom bin are provided with a separation mechanism, the separation mechanism includes a mounting hole opened between the inner cavity of the box shell and the bottom bin, a symmetrical filter cavity is opened in the bottom wall of the box shell, the filter cavity is located between the inner cavity of the box shell and the bottom bin, a filter mechanism is arranged in the filter cavity, the cleaning nozzle and the lubricating nozzle extend into the filter cavity, a connecting hole is opened between the mounting hole and the filter cavity, a filter cover that enters the bottom bin is slidingly inserted into the top of the mounting hole, by setting two layers of filters for the lubricating oil, when the cleaning nozzle and the lubricating nozzle are started, the lubricating oil first flows into the filter cavity through the mounting hole and then is sprayed out, the large iron filings in the lubricating oil are first coarsely filtered by the filter cover and then are finely filtered by the filter mechanism, so that the filtering effect is improved, the service life of the lubricating oil is longer, and when the lubricating oil flows, the large iron filings intercepted in the inside of the filter cover begin to slide downward after losing the additional force of the lubricating oil flow, so that the filter cover is cleaned once after the equipment completes a start-stop, and the filter cover is prevented from being quickly blocked by the large iron filings, thereby affecting the circulation of the lubricating oil.

[0011] Further, the inner cavity bottom wall of the box shell is provided as a curved surface, the mounting hole is located at the lowest point of the curved surface, so that the lubricating oil and the iron filings in the lubricating oil can be conveniently collected to the mounting hole, and then are separated by the filter cover during the flow process.

[0012] Further, the middle section of the mounting hole is widened, the outside of the filter cover is provided with an annular circular table that is large at the top and small at the bottom, the annular circular table is located at the widened portion of the middle section of the mounting hole, a connecting rod is inserted into the inside of the connecting hole, one end of the connecting rod located in the filter cavity is fixedly connected with a blocking plate, one end of the connecting rod located in the mounting hole is fixedly connected with a lifting plate, the other side of the blocking plate is fixedly connected with a spring, the other end of the spring abuts against the surface of the filter mechanism, the other end of the lifting plate abuts against the surface of the annular circular table, by arranging the connecting rod, the blocking plate and the lifting plate between the filter mechanism and the filter cover, when the cleaning nozzle and the lubricating nozzle are started, the lubricating oil begins to circulate, the pressure in the filter cavity becomes smaller, the blocking plate pulls and compresses the spring in the direction of the filter mechanism, the mounting hole and the filter cavity are communicated through the connecting hole, and the connecting rod and the lifting plate also move with the blocking plate, the filter cover loses support and slides downward to contact the receiving disc, the bottom opening of the filter cover is closed, during the circulation of the lubricating oil, the large iron filings are intercepted by the filter cover, after the circulation of the lubricating oil stops, the pressure is lost, the spring pushes the blocking plate and the lifting plate to reset, the filter cover is lifted up by the annular circular table, the large iron filings in the filter cover slide into the receiving disc, so that the inside and outside of the filter cover are separated when the lubricating oil flows, and the large iron filings in the receiving disc are prevented from being stirred up by the flow of the lubricating oil, thereby accelerating the adsorption saturation of the filter cover.

[0013] Further, the diameter of the blocking plate is larger than that of the connecting hole, the blocking plate is attached to the opening of the connecting hole, so that the connecting hole opening is closed by the blocking plate, and when the lubricating oil flows, the pressure difference formed will definitely drive the blocking plate, the lifting plate and the connecting rod to move, thereby improving the stability of the equipment.

[0014] Further, the inside of the receiving tray is fixedly connected with a conical seat, the conical seat is located directly below the filter cover, the ground diameter of the conical seat is larger than the outer diameter of the filter cover, so that when the filter cover falls, it can fall above the conical seat, and the filter cover side wall falls on the waist of the conical seat, so that when the filter cover is lifted, the large iron filings falling from the filter cover will slide down along the outer currency of the conical seat, avoiding the situation that large iron filings are pushed.

[0015] Further, an inlet is arranged between the bottom bin and the filter cavity, the filter mechanism comprises a plug inserted into the filter cavity from the bottom bin, a flow channel is arranged inside the plug and penetrates left and right, the flow channel is in a continuous and uniform undulating wave shape, and peak points and valley points are arranged according to the undulations, a sedimentation channel is arranged at the bottom of the plug, and the sedimentation channel is connected with the valley points of the flow channel, so that when the lubricating oil flows through the flow channel, the lubricating oil will slow down when passing through the tortuous channel of the flow channel, so that small iron filings in the lubricating oil are retained in the flow channel, and then slide into the receiving tray through the sedimentation channel, so that the flow distance of the iron filings is lengthened, so that the iron filings can be deposited, the possibility of being blocked is reduced, and the service life of the flow channel is longer.

[0016] Further, an arc-shaped curved channel is arranged at the lower opening of the sedimentation channel, so that the normal sliding of the iron filings is facilitated, and the influence of the flowing lubricating oil on the space in the receiving tray is reduced.

[0017] Further, the peak point to the valley point in the flow channel is a lower flow area, and the valley point to the peak point in the flow channel is an upper flow area, and a magnetic sheet is embedded in the bottom wall of the upper flow area, so that when the lubricating oil and the iron filings pass through the upper flow area, the magnetic sheet will produce resistance to the iron filings, making it more difficult to flow downward, so it stays in the upper flow area of the flow channel, and after the lubricating oil stops flowing, the iron filings slide down, thereby further improving the filtering effect and improving the quality of the lubricating oil.

[0018] 3. Beneficial effects

[0019] Compared with the prior art, the advantages of the present application are:

[0020] 1、This scheme by setting two groups of spray head outside the gear group, so the gearbox working process output shaft and input shaft under the transmission of the gear group each rotation, lubrication spray head will lubricating oil sprayed between the two groups of gear, lubrication of two groups of gear, while the cleaning spray head will lubricating oil respectively sprayed below the two groups of gear, the two groups of gear friction generated iron filings washed away, avoid these iron filings exist between the gear teeth of the gear group, resulting in increased friction between the two groups of gear, aggravate the wear and tear, so effectively prolong the service life of the transmission, at the same time the cover wrapped outside the gear group, avoid high speed rotating gear group will be thrown everywhere lubricating oil, will not form a large piece of oil, reduce the difficulty of cleaning.

[0021] 2、The inner wall of the box shell is provided with air holes above the lubricating oil level, and the cleaning spray head is communicated with the air holes, so that when the cleaning spray head is used to wash the gear group, part of the air will be sucked through the air holes, and the mixture of air and lubricating oil enhances the washing pressure and improves the cleaning effect. Moreover, when the air bubbles mixed in the lubricating oil burst, the cleaning effect can also be enhanced.

[0022] 3、By setting two layers of filter for lubricating oil, when the cleaning spray head and the lubricating spray head are started, the lubricating oil first flows into the filter cavity through the installation hole and then is sprayed out, in this process, the lubricating oil is first filtered by the filter cover and then is filtered by the filtering mechanism, thereby improving the filtering effect and prolonging the service life of the lubricating oil. Meanwhile, when the lubricating oil flows, the large iron filings intercepted inside the filter cover begin to slide downward after losing the additional force of the lubricating oil flow, so that the filter cover is cleaned once the equipment is started and stopped once, thereby avoiding the filter cover being quickly blocked by large iron filings and affecting the circulation of the lubricating oil.

[0023] 4、By setting the connecting rod, the plugging plate and the lifting plate between the filtering mechanism and the filter cover, when the cleaning spray head and the lubricating spray head are started, the lubricating oil begins to circulate, the pressure in the filter cavity becomes smaller, the plugging plate is pulled to compress the spring in the direction of the filtering mechanism, the installation hole and the filter cavity are communicated through the connecting hole, and the connecting rod and the lifting plate also move with the plugging plate. The filter cover loses support and slides downward to contact the receiving disc, the opening at the bottom of the filter cover is closed, and during the circulation of the lubricating oil, the large iron filings are intercepted by the filter cover. After the lubricating oil stops circulating, the pressure is lost, the spring pushes the plugging plate and the lifting plate to reset, the filter cover is lifted by the annular circular table, and the large iron filings inside the filter cover slide into the receiving disc. Thus, the inside and outside of the filter cover are separated when the lubricating oil flows, thereby avoiding the lubricating oil flow from stirring the large iron filings deposited in the receiving disc and accelerating the adsorption saturation of the filter cover.

[0024] 5. The diameter of the sealing plate is larger than the diameter of the connecting hole. The sealing plate fits into the opening of the connecting hole, thus sealing the opening of the connecting hole. When the lubricating oil flows, the pressure difference will inevitably drive the sealing plate, the support plate and the connecting rod to move, thus improving the stability of the equipment.

[0025] 6. The receiving tray is fixedly connected to a conical seat, which is located directly below the filter cover. The diameter of the conical seat is larger than the outer diameter of the filter cover. When the filter cover falls, it can land on the conical seat, and the side wall of the filter cover will fall on the waist of the conical seat. When the filter cover is raised, large iron filings that fall out of the filter cover will slide down the outer edge of the conical seat, avoiding the situation of large iron filings being pushed together.

[0026] 7. An insertion port is provided between the bottom chamber and the filter chamber. The filter mechanism includes an insert that is inserted into the filter chamber from the bottom chamber. The insert has a flow channel that runs through it from left to right. The flow channel is a continuous and uniformly undulating wave shape, with peaks and valleys set according to the undulations. A sedimentation channel is provided at the bottom of the insert. The sedimentation channel is connected to the valleys of the flow channel. When the lubricating oil flows through the flow channel, the lubricating oil will slow down when it passes through the tortuous flow channel. This causes small iron filings in the lubricating oil to be retained in the flow channel and then slide down into the collection tray through the sedimentation channel. This lengthens the flow distance of the iron filings, allowing them to settle where they are, reducing the possibility of blockage. At the same time, there will be no pushing of iron filings in the flow channel, thus extending its service life.

[0027] 8. The flow channel has a downstream zone from the peak to the valley and an upstream zone from the valley to the peak. The bottom wall of the upstream zone is embedded with magnetic plates. When lubricating oil and iron filings pass through the upstream zone, the magnetic plates create resistance to the iron filings, making it more difficult for them to flow downwards. As a result, they stay in the upstream zone of the flow channel. After the lubricating oil stops flowing, the iron filings slide off, which further improves the filtration effect and improves the quality of the lubricating oil. Attached Figure Description

[0028] Figure 1 This is an external view of the gearbox of the present invention;

[0029] Figure 2 This is a disassembled diagram of the gearbox of the present invention;

[0030] Figure 3 This is a front view of the interior of the gearbox of the present invention;

[0031] Figure 4 This is a side view of the inside of the gearbox of the present invention;

[0032] Figure 5 This is a rear view of the interior of the gearbox of the present invention;

[0033] Figure 6Separation mechanism of the present application;

[0034] Figure 7 Separation mechanism and filter mechanism of the present application;

[0035] Figure 8 Separation mechanism of the present application in static state;

[0036] Figure 9 Separation mechanism of the present application in circulation state;

[0037] Figure 10 Filter mechanism of the present application; Figure 8 Enlarged view of A in the figure.

[0038] Explanation of figure mark:

[0039] 1, box shell; 2, output shaft; 3, input shaft; 4, gear group; 5, bottom bin; 6, receiving tray; 7, lubricating mechanism; 71, partition; 72, cover; 73, opening; 74, cleaning nozzle; 75, lubricating nozzle; 76, air hole; 8, separation mechanism; 81, mounting hole; 82, filter cavity; 83, connecting hole; 84, filter cover; 85, connecting rod; 86, blocking plate; 87, lifting plate; 88, spring; 89, conical seat; 9, filter mechanism; 91, plug-in; 92, flow channel; 93, sedimentation channel. DETAILED DESCRIPTION

[0040] The embodiments will be described clearly and completely in combination with the disclosed figures, so that the purpose, technical scheme and beneficial effects of the embodiments of the present disclosure are more clear. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present disclosure.

[0041] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be the conventional meanings understood by those skilled in the art to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not represent any order, quantity or importance, but are only used to distinguish different components. The words such as "include" and "comprise" mean that the elements or objects before the words cover the elements or objects listed after the words and their equivalents, and do not exclude other elements or objects. "Up", "down", "inner", "outer" and the like are only used to represent relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0042] Embodiment:

[0043] Please refer to Figures 1 to 5An automatic gearbox with lubricating structure, comprising a box shell 1, the inside of the box shell 1 is filled with lubricating oil, the two ends of the box shell 1 are respectively provided with an output shaft 2 and an input shaft 3, a gear set 4 is installed between the output shaft 2 and the input shaft 3, the gear set 4 is composed of two groups of gears with different sizes, the gear set 4 is located above the liquid level of the lubricating oil, a bottom bin 5 is opened at the bottom of the box shell 1, a receiving disc 6 is installed at the opening below the bottom bin 5, a lubricating mechanism 7 is installed around the gear set 4 in the inside of the box shell 1, the lubricating mechanism 7 comprises a partition plate 71 fixedly connected in the inside of the box shell 1, the partition plate 71 divides the inside space of the box shell 1 into two intervals, an outer cover 72 is fixedly connected to the side of the partition plate 71 close to the gear set 4, the outer cover 72 wraps the gear set 4, two open ports 73 are opened at the upper and lower sides of the outer cover 72, the lower open port 73 exposes the bottoms of the two groups of gears, the upper open port 73 is located at the meshing position of the two groups of gears, two cleaning nozzles 74 and a lubricating nozzle 75 are assembled on the inner wall of the box shell 1, one end of the cleaning nozzles 74 and the lubricating nozzle 75 are connected with a suction pump, and the suction pump is immersed in the lubricating oil, the two cleaning nozzles 74 are respectively aimed at the two groups of gear sets 4 through the lower open port 73, the lubricating nozzle 75 is connected with the upper open port 73, by setting two groups of nozzles outside the gear set 4, in the working process of the gearbox, the output shaft 2 and the input shaft 3 rotate respectively under the transmission of the gear set 4, the suction pump starts to suck the lubricating oil and sprays it out through the cleaning nozzles 74 and the lubricating nozzle 75, the lubricating nozzle 75 sprays the lubricating oil between the two groups of gears to lubricate the two groups of gears, at the same time, the cleaning nozzles 74 respectively spray the lubricating oil below the two groups of gears to flush away the iron filings generated by the friction of the two groups of gears, as shown in Figure 5 , and the lubricating oil scattered by the high-speed rotation of the gear set 4 is blocked by the outer cover 72 and drips through the lower open port 73, so as to circulate.

[0044] A gas hole 76 is opened in the inner wall of the box shell 1, the gas hole 76 is located above the liquid level of the lubricating oil, the cleaning nozzles 74 are communicated with the gas hole 76, so that when the cleaning nozzles 74 suck the lubricating oil to flush the gear set 4, part of the air will be sucked in through the gas hole 76, the mixture of air and lubricating oil enhances the flushing pressure and improves the cleaning effect, and the air bubbles mixed in the lubricating oil can also enhance the cleaning effect when they burst.

[0045] Please refer to Figures 6 to 10The separation mechanism 8 is arranged between the inner cavity of the box shell 1 and the bottom bin 5, and includes a mounting hole 81 arranged between the inner cavity of the box shell 1 and the bottom bin 5, and a symmetrical filter cavity 82 arranged in the inner bottom wall of the box shell 1 and located between the inner cavity of the box shell 1 and the bottom bin 5, and a filter mechanism 9 arranged in the filter cavity 82, and the cleaning nozzle 74 and the lubricating nozzle 75 extend into the filter cavity 82, and a connecting hole 83 is arranged between the mounting hole 81 and the filter cavity 82, and a filter cover 84 extending into the bottom bin 5 is slidingly inserted into the top of the mounting hole 81, and the lubricating oil is filtered in two layers, as shown in Figure 7 When the cleaning nozzle 74 and the lubricating nozzle 75 are started, the lubricating oil first flows into the filter cavity 82 through the mounting hole 81 and then is sprayed out, and in this process, the lubricating oil is first coarsely filtered by the filter cover 84 and then is finely filtered by the filter mechanism 9, so that the filtering effect is improved, the service life of the lubricating oil is longer, and at the same time, the large iron filings intercepted inside the filter cover 84 start to slide downward after losing the additional force of the lubricating oil flow, so that the filter cover 84 is cleaned once after the completion of one start-stop of the equipment, and the filter cover 84 is prevented from being quickly blocked by the large iron filings, thereby affecting the circulation of the lubricating oil; the inner cavity bottom wall of the box shell 1 is arranged as a curved surface, the mounting hole 81 is located at the lowest point of the curved surface, so that the lubricating oil and the iron filings in the lubricating oil can be conveniently collected at the mounting hole 81, and then are separated by the filter cover 84 in the flow process.

[0046] The middle section of the mounting hole 81 is widened, the outside of the filter cover 84 is arranged as an annular circular truncated cone which is large at the top and small at the bottom, the annular circular truncated cone is located at the widened portion of the middle section of the mounting hole 81, a connecting rod 85 is inserted into the connecting hole 83, one end of the connecting rod 85 located in the filter cavity 82 is fixedly connected with a blocking plate 86, one end of the connecting rod 85 located in the mounting hole 81 is fixedly connected with a lifting plate 87, the other side of the blocking plate 86 is fixedly connected with a spring 88, the other end of the spring 88 abuts against the surface of the filter mechanism 9, and the other end of the lifting plate 87 abuts against the surface of the annular circular truncated cone, and the connecting rod 85, the blocking plate 86 and the lifting plate 87 are arranged between the filter mechanism 9 and the filter cover 84, so that when the cleaning nozzle 74 and the lubricating nozzle 75 are started, the lubricating oil starts to circulate, the pressure in the filter cavity 82 becomes smaller, the blocking plate 86 is pulled to compress the spring 88 in the direction of the filter mechanism 9, as shown in Figure 9 The mounting hole 81 and the filter cavity 82 are communicated through the connecting hole 83, and the connecting rod 85 and the lifting plate 87 also move with the blocking plate 86, the filter cover 84 loses support and slides downward to contact the receiving disc 6, the bottom opening of the filter cover 84 is closed, the large iron filings are intercepted by the filter cover 84 in the circulation process of the lubricating oil, the lubricating oil stops circulating, loses pressure, and the spring 88 pushes the blocking plate 86 and the lifting plate 87 to reset, as shown in Figure 8As shown, the filter cover 84 is lifted by the annular circular truncated cone, and the large iron filings in the filter cover 84 fall into the receiving tray 6, so that the inside and outside of the filter cover 84 are separated when the lubricating oil flows, avoiding that the flowing lubricating oil stirs up the large iron filings in the receiving tray 6, and accelerating the adsorption saturation of the filter cover 84.

[0047] The diameter of the blocking plate 86 is larger than that of the connecting hole 83, and the blocking plate 86 is attached to the opening of the connecting hole 83, so that the opening of the connecting hole 83 is closed by the blocking plate 86, and the pressure difference formed when the lubricating oil flows will definitely drive the blocking plate 86, the lifting plate 87 and the connecting rod 85 to move, improving the stability of the equipment; the inside of the receiving tray 6 is fixedly connected with a conical seat 89, which is located directly below the filter cover 84, and the ground diameter of the conical seat 89 is larger than the outer diameter of the filter cover 84, so that the filter cover 84 can fall above the conical seat 89 when it falls, and the side wall of the filter cover 84 falls on the waist of the conical seat 89, so that when the filter cover 84 is lifted, the large iron filings falling from the filter cover 84 will slide down along the outer wall of the conical seat 89, avoiding the situation that the large iron filings are pushed a lot.

[0048] The bottom bin 5 and the filter cavity 82 are provided with an insertion opening, and the filter mechanism 9 includes an insert 91 inserted into the filter cavity 82 from the bottom bin 5, and a flow channel 92 is provided inside the insert 91 and penetrates left and right, the flow channel 92 is in a continuous and uniform undulating wave shape, and peak points and valley points are arranged according to the undulation, and a sedimentation channel 93 is provided at the bottom of the insert 91, and the sedimentation channel 93 is connected in series with the valley points of the flow channel 92, so that when the lubricating oil flows through the flow channel 92, the lubricating oil will slow down when passing through the tortuous channel of the flow channel 92, so that the small iron filings in the lubricating oil are retained in the flow channel 92, and then fall into the receiving tray 6 through the sedimentation channel 93, so that the flow distance of the iron filings is lengthened, so that the iron filings can be deposited, and the possibility of being blocked is reduced, and the iron filings in the flow channel 92 will not be pushed, so that the service life is longer.

[0049] An arc-shaped curved channel is arranged at the lower opening of the sedimentation channel 93, so that the normal sliding of the iron filings is facilitated, and the influence of the flowing lubricating oil on the space in the receiving tray 6 is also reduced; the peak point to the valley point in the flow channel 92 is a lower flow area, and the valley point to the peak point in the flow channel 92 is an upper flow area, and a magnetic sheet is embedded in the bottom wall of the upper flow area, so that when the lubricating oil and the iron filings pass through the upper flow area, the magnetic sheet will produce resistance to the iron filings, making it more difficult to flow downward, so it stays in the upper flow area of the flow channel 92, and after the lubricating oil stops flowing, the iron filings slide down, so that the filtering effect is further improved, and the quality of the lubricating oil is improved.

[0050] The above merely provides the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art, according to the technical solution of the present application and the improved concept thereof, makes equivalent replacement or change within the technical range disclosed by the present application, and should be covered within the protection scope of the present application.

Claims

1. An automatic transmission with a self-lubricating structure, comprising a housing (1), the interior of which is filled with lubricating oil, an output shaft (2) and an input shaft (3) respectively inserted at both ends of the housing (1), a transmission gear set (4) installed between the output shaft (2) and the input shaft (3), the transmission gear set (4) being composed of two sets of gears of different sizes, the transmission gear set (4) being located above the surface of the lubricating oil, a bottom compartment (5) being provided at the bottom of the housing (1), and a receiving tray (6) being installed at the lower opening of the bottom compartment (5), characterized in that: The inside of the box shell (1) is provided with a lubricating mechanism (7) around the gear shift gear set (4), the lubricating mechanism (7) comprises a partition plate (71) fixedly connected inside the box shell (1), the partition plate (71) divides the inside space of the box shell (1) into two intervals, the partition plate (71) is fixedly connected with a cover (72) on the side close to the gear shift gear set (4), the cover (72) wraps the gear shift gear set (4) inside, two open ports (73) are formed on the upper and lower sides of the cover (72), the lower open port (73) exposes the bottom of the two gear sets, and the upper open port (73) is located at the meshing position of the two gear sets, the inner wall of the box shell (1) is provided with two cleaning nozzles (74) and a lubricating nozzle (75), one end of the cleaning nozzle (74) and the lubricating nozzle (75) is connected with a suction pump, the suction pump is immersed in lubricating oil, the two cleaning nozzles (74) are respectively aligned with the two gear shift gear sets (4) through the lower open port (73), and the lubricating nozzle (75) is connected with the upper open port (73); The inside cavity of the box shell (1) and the bottom bin (5) are provided with a separation mechanism (8), the separation mechanism (8) comprises a mounting hole (81) formed between the inside cavity of the box shell (1) and the bottom bin (5), a symmetrical filter cavity (82) is formed in the bottom wall of the box shell (1), the filter cavity (82) is located between the inside cavity of the box shell (1) and the bottom bin (5), a filter mechanism (9) is arranged in the filter cavity (82), the cleaning nozzle (74) and the lubricating nozzle (75) extend into the filter cavity (82), a connecting hole (83) is formed between the mounting hole (81) and the filter cavity (82), and a filter cover (84) entering the bottom bin (5) is slidably inserted into the top of the mounting hole (81); The middle section of the mounting hole (81) is widened, the outer side of the filter cover (84) is provided with an annular circular table which is large at the top and small at the bottom, the annular circular table is located at the widened part of the middle section of the mounting hole (81), a connecting rod (85) is inserted into the connecting hole (83), one end of the connecting rod (85) located in the filter cavity (82) is fixedly connected with a blocking plate (86), one end of the connecting rod (85) located in the mounting hole (81) is fixedly connected with a lifting plate (87), the other side of the blocking plate (86) is fixedly connected with a spring (88), the other end of the spring (88) is pressed on the surface of the filter mechanism (9), and the other end of the lifting plate (87) is pressed on the surface of the annular circular table.

2. The automatic transmission with self-lubricating structure according to claim 1, characterized in that: Air holes (76) are formed in the inner wall of the box shell (1), the air holes (76) are located above the lubricating oil level, and the cleaning nozzle (74) is communicated with the air holes (76).

3. The automatic transmission with self-lubricating structure according to claim 1, characterized in that: The inner cavity bottom wall of the box shell (1) is provided as a curved surface, and the mounting hole (81) is located at the lowest point of the curved surface.

4. The automatic transmission with self-lubricating structure according to claim 1, characterized in that: The diameter of the blocking plate (86) is larger than that of the connecting hole (83), and the blocking plate (86) is attached to the opening of the connecting hole (83).

5. The automatic transmission with self-lubricating structure according to claim 1, characterized in that: The interior of the receiving tray (6) is fixedly connected with a conical seat (89), which is located directly below the filter cover (84), and the ground diameter of the conical seat (89) is larger than the outer diameter of the filter cover (84).

6. The automatic transmission with self-lubricating structure according to claim 1, characterized in that: A socket is formed between the bottom bin (5) and the filter cavity (82), the filter mechanism (9) comprises an insert (91) inserted into the filter cavity (82) from the bottom bin (5), the interior of the insert (91) is provided with a left-right penetrating flow channel (92), the flow channel (92) is in a continuous and uniform undulating wave shape, and peak points and valley points are arranged according to the undulations, the bottom of the insert (91) is provided with a sedimentation channel (93), and the sedimentation channel (93) is connected with the valley points of the flow channel (92).

7. The automatic transmission with self-lubricating structure according to claim 6, characterized in that: An arc-shaped curved channel is arranged at the opening of the lower part of the sedimentation channel (93).

8. The automatic transmission with self-lubricating structure according to claim 6, characterized in that: The peak point to the valley point in the flow channel (92) is a downflow area, and the valley point to the peak point in the flow channel (92) is an upflow area, and a magnetic sheet is embedded in the bottom wall of the upflow area.

Images