Speed reducer with high lubrication keeping performance

Abstract

The utility model relates to the technical field of speed reducers, in particular to a high-lubrication-keeping speed reducer which comprises a speed reducer shell, the interior of the speed reducer shell is divided into a first cavity and a second cavity, a connecting hole is formed between the first cavity and the second cavity, and a connecting cylinder is arranged in the first cavity. According to the speed reducer, the speed reducer shell is divided into the first cavity and the second cavity, so that lubricating oil can enter the first cavity to be collected when the speed reducer is not used for a long time, and the situation that normal use of parts is affected due to failure of the lubricating oil when the lubricating oil is soaked on the transmission parts for a long time is reduced; and if the storage time of the lubricating oil is still within the validity period, the lubricating oil can be continuously utilized and enters the second cavity, if the storage time is long, the lubricating oil fails or impurities such as oil sludge exist, the lubricating oil can be discharged and is not used any more, and therefore the purposes that the speed reducer is lubricated, and meanwhile internal transmission parts can be protected can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer technology, and in particular to a speed reducer with high lubrication retention. Background Technology

[0002] A speed reducer is an independent component consisting of gear drives, worm gear drives, or gear-worm gear drives enclosed in a rigid housing. It is commonly used as a speed reduction transmission device between a prime mover and a driven machine. It plays a role in matching speeds and transmitting torque between the prime mover and the driven machine or actuator. Speed ​​reducers are widely used in modern machinery. They are generally used in low-speed, high-torque transmission equipment. They reduce the speed of a motor, internal combustion engine, or other high-speed power source by meshing a smaller gear on the input shaft with a larger gear on the output shaft. Ordinary speed reducers may also have several pairs of gears operating on the same principle to achieve the desired speed reduction effect. The ratio of the number of teeth on the large gear to the number of teeth on the small gear is the transmission ratio.

[0003] In order to ensure the normal operation of internal gears, worm gears, and other structures and reduce friction during the use of a speed reducer, lubricating oil is usually added inside the speed reducer housing. The lubricating oil is usually not replaced for a long time after it is added. Moreover, when the speed reducer is not used for a long time, the lubricating oil is still inside the speed reducer, immersing the internal parts. The lubricating oil will age, become contaminated, and even produce impurities after a long period of disuse. This will affect the internal parts and the lubrication effect when the speed reducer is used again. In addition, traditional speed reducers usually drain the lubricating oil by simply opening the oil outlet and tilting the speed reducer to pour out the internal lubricating oil, which is inconvenient to operate. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency lubrication reducer, which solves the problem that when a reducer is not used for a long time, the lubricating oil remains inside the reducer, immersing the components. However, if the lubricating oil is not used for a long time, it will age, become contaminated, and even produce impurities. This will affect the internal components and the lubrication effect when the reducer is used again. In addition, traditional reducers usually require opening the oil outlet and tilting the reducer to pour out the lubricating oil, which is inconvenient.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-lubrication reducer includes a reducer housing, the interior of which is divided into a first cavity and a second cavity, a connecting hole is provided between the first cavity and the second cavity, a connecting cylinder is provided inside the first cavity, a through hole is provided on the surface of the connecting cylinder, a connecting pipe is connected to the side wall of the first cavity, the end of the connecting pipe away from the first cavity is connected to the second cavity, a piston cylinder is provided inside the connecting cylinder, a filter screen frame is provided on the surface of the connecting cylinder near the connecting pipe, and a lead screw is provided inside the connecting cylinder for driving the piston cylinder to move.

[0007] Preferably, a cap is rotatably connected to the end of the connecting cylinder, the lead screw rotates through the connecting cylinder, a circular hole is opened on the surface of the cap, the lead screw passes through the circular hole, the end of the first cavity away from the connecting tube is set as an opening, the cap and the opening of the first cavity are threadedly connected, a bushing is fixedly passed through the inside of the piston cylinder, the lead screw and the bushing are threadedly connected, three limiting rods are fixedly installed inside the connecting cylinder, and the piston cylinder and the limiting rods are slidably connected.

[0008] Preferably, a sealing sleeve is fixedly fitted on the surface of the lead screw relative to the position of the connecting cylinder, a piston sleeve is fixedly fitted on the surface of the piston cylinder, and a sliding mechanical seal is formed between the limiting rod and the piston cylinder.

[0009] Preferably, the surface of the filter frame is provided with bolts, and the filter frame is connected to the connecting cylinder by bolts and threads.

[0010] Preferably, a protruding rod is fixedly installed on the outer wall of the connecting cylinder, and a sliding groove is provided inside the first cavity. The connecting cylinder is slidably inserted into the first cavity through the protruding rod and the sliding groove.

[0011] Preferably, the end of the connecting pipe away from the first cavity is connected to a connector, and an injection pipe is fixedly inserted through the top of the reducer housing, with the connector and the injection pipe being threaded together.

[0012] This utility model has at least the following beneficial effects:

[0013] By configuring the reducer housing into a first cavity and a second cavity, lubricating oil can be collected in the first cavity when the reducer is not in use for a long time. This reduces the risk of lubricating oil failure due to prolonged immersion in the transmission components, which could affect the normal operation of the components. If the lubricating oil is still within its shelf life, it can be reused and transferred to the second cavity. If the storage time is long, the lubricating oil has failed, or there are impurities such as sludge, it can be drained and no longer used. This achieves the purpose of lubricating the reducer while protecting the internal transmission components. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a sectional view of the reducer housing of this utility model;

[0017] Figure 3 This is a schematic diagram of the slide groove structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the filter frame structure of this utility model.

[0019] In the diagram: 1. Gearbox housing; 2. Connecting pipe; 3. Injection pipe; 4. First cavity; 5. Second cavity; 6. Connecting hole; 7. Slide groove; 8. Filter screen frame; 9. Connecting cylinder; 10. Through hole; 11. Limiting rod; 12. Lead screw; 13. Piston cylinder; 14. Piston sleeve; 15. Sealing sleeve; 16. Cover; 17. Connector. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that can control it.

[0024] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Reference Figure 1-4A high-lubrication speed reducer includes a speed reducer housing 1. The interior of the speed reducer housing 1 is divided into a first cavity 4 and a second cavity 5. A connecting hole 6 is provided between the first cavity 4 and the second cavity 5. A connecting cylinder 9 is disposed inside the first cavity 4. A through hole 10 is provided on the surface of the connecting cylinder 9. A connecting pipe 2 is connected to the side wall of the first cavity 4. The end of the connecting pipe 2 away from the first cavity 4 is connected to the second cavity 5. A piston cylinder 13 is disposed inside the connecting cylinder 9. A filter screen frame 8 is disposed on the surface of the connecting cylinder 9 near the connecting pipe 2. A lead screw 12 is disposed inside the connecting cylinder 9 to drive the piston cylinder 13 to move. In use, the speed reducer housing 1 is configured with the first cavity 4 and the second cavity 5. The second cavity 5 is used to house the gears and other transmission components required by the speed reducer itself. Lubricating oil is injected from the top of the reducer housing 1 into the moving parts. The lubricating oil enters the second cavity 5, thus lubricating the transmission parts in the second cavity 5. When the reducer housing 1 is in normal use, the piston cylinder 13 is located below the connecting hole 6, blocking the connecting hole 6 and preventing lubricating oil from leaking into the first cavity 4. When the reducer is not used for a long time, the piston cylinder 13 can be driven by the lead screw 12 to move away from the connecting pipe 2, thereby exposing the connecting hole 6. At this time, the lubricating oil inside the second cavity 5 will fall into the first cavity 4 through the connecting hole 6. Since the through hole 10 is aligned with the connecting hole 6, the lubricating oil falls directly into the inside of the connecting cylinder 9 for storage. When the reducer needs to be used, it can be opened by rotating the lead screw 12. The piston cylinder 13 is driven to move, causing it to squeeze the lubricating oil. The lubricating oil is then filtered through the filter screen frame 8 and enters the connecting pipe 2. The connecting pipe 2 is connected to the second cavity 5, thus allowing the lubricating oil to be squeezed into the second cavity 5 for continued lubrication. The filter screen frame 8 is equipped with a filter screen, which filters the lubricating oil, intercepting residual iron filings or sludge to prevent them from re-entering the second cavity 5 and affecting the normal operation of the transmission components. This facilitates use. When the piston cylinder 13 moves to the rightmost end, the through hole 10 and the connecting hole 6 are open. When the piston cylinder 13 moves to the left, it blocks the through hole 10 and the connecting hole 6 until it moves to the leftmost end. 0 is in a blocked state. To improve the usage effect, a rubber sleeve is set on the outside of the connecting cylinder 9. The rubber sleeve can prevent lubricating oil from leaking between the connecting cylinder 9 and the first cavity 4. By setting the reducer housing 1 as the first cavity 4 and the second cavity 5, the lubricating oil can enter the first cavity 4 for collection when it is not used for a long time. This reduces the lubricating oil from being soaked on the transmission parts for a long time, which may cause the lubricating oil to fail and affect the normal use of the parts. If the lubricating oil is still within the shelf life, it can continue to be used and enter the second cavity 5. If the storage time is long, the lubricating oil fails or contains impurities such as sludge, it can be released and no longer used. In this way, it can lubricate the reducer and protect the internal transmission parts at the same time.

[0026] Furthermore, a cover 16 is rotatably connected to the end of the connecting cylinder 9, and a lead screw 12 rotatably passes through the connecting cylinder 9. A round hole is opened on the surface of the cover 16, and the lead screw 12 passes through the round hole. The end of the first cavity 4 away from the connecting pipe 2 is set as an opening, and the cover 16 and the opening of the first cavity 4 are threadedly connected. A bushing is fixedly passed through the inside of the piston cylinder 13, and the lead screw 12 is threadedly connected to the bushing. Three limiting rods 11 are fixedly installed inside the connecting cylinder 9, and the piston cylinder 13 and the limiting rods 11 are slidably connected. The connecting cylinder 9 is inserted into the second cavity 5, and after insertion, it is threadedly connected to the second cavity 5 using the cover 16. The cover 16 is provided with... The sealing ring serves a sealing function, reducing lubricant leakage. When the piston cylinder 13 needs to be moved, the lead screw 12 can be rotated directly. The lead screw 12 has a handle at the port of the cover 16 for easy rotation. Rotation of the lead screw 12 drives the bushing to move, and the bushing is fixed in the piston cylinder 13, which in turn drives the piston sleeve 14 to move on the limiting rod 11. The limiting rod 11 prevents the entire bushing and piston sleeve 14 from rotating with the lead screw 12. After the cover 16 is removed from the second cavity 5, the entire connecting cylinder 9 can be taken out directly, which facilitates cleaning of the filter screen frame 8 on the connecting cylinder 9.

[0027] Furthermore, a sealing sleeve 15 is fixedly fitted on the surface of the lead screw 12 relative to the position of the connecting cylinder 9, and a piston sleeve 14 is fixedly fitted on the surface of the piston cylinder 13. The limiting rod 11 and the piston cylinder 13 are connected by a sliding mechanical seal. By setting the sealing sleeve 15, lubricating oil will not leak from the position where the lead screw 12 and the connecting cylinder 9 are rotatably connected. By setting the piston sleeve 14, the sealing performance of the piston squeezing the lubricating oil is improved. Combined with the sliding mechanical seal between the limiting rod 11 and the piston cylinder 13, the lubricating oil will not leak to the right end of the piston cylinder 13 when the piston cylinder 13 squeezes the lubricating oil, and all of it will enter the connecting pipe 2.

[0028] Furthermore, bolts are provided on the surface of the filter frame 8. The filter frame 8 is connected to the connecting cylinder 9 by bolts and threads. The filter frame 8 is detachably installed on the connecting cylinder 9 by bolts, which facilitates cleaning of the filter screen on the filter frame 8 after disassembling the connecting cylinder 9.

[0029] Furthermore, a protruding rod is fixedly installed on the outer wall of the connecting cylinder 9, and a sliding groove 7 is provided inside the first cavity 4. The connecting cylinder 9 is slidably inserted into the first cavity 4 through the protruding rod and the sliding groove 7. By setting the protruding rod, the connecting cylinder 9 is slidably inserted into the first cavity 4, so that when the sealing cover 16 is rotated for sealing, the connecting cylinder 9 will not rotate with the sealing cover 16, so that the through hole 10 on the connecting cylinder 9 can be aligned with the connecting hole 6.

[0030] Furthermore, the end of the connecting pipe 2 away from the first cavity 4 is connected to a connector 17, and an injection pipe 3 is fixedly inserted through the top of the reducer housing 1. The connector 17 and the injection pipe 3 are threaded together. The connecting pipe 2 is connected to the injection pipe 3 through the connector 17, so as to inject lubricating oil into the second cavity 5 for use. When it is necessary to discharge the lubricating oil, the connector 17 can be disassembled from the injection pipe 3, and then the piston cylinder 13 can squeeze the lubricating oil out of the first cavity 4 to facilitate the discharge of the lubricating oil.

[0031] In summary, during use, the reducer housing 1 is configured as a first cavity 4 and a second cavity 5. The second cavity 5 is used to house the gears and other transmission components required by the reducer itself. Lubricating oil is injected from the top of the reducer housing 1, and the lubricating oil enters the second cavity 5, thereby lubricating the transmission components in the second cavity 5. When the reducer housing 1 is in normal use, the piston cylinder 13 is positioned below the connecting hole 6, blocking the connecting hole 6 and preventing lubricating oil from leaking into the first cavity 4. When the reducer is not used for a long time, the piston cylinder 13 can be driven by the lead screw 12 to move away from the connecting pipe 2, thereby exposing the connecting hole 6. At this time, the lubricating oil inside the second cavity 5 will fall into the first cavity 4 through the connecting hole 6, and the through hole... The piston cylinder 13 is aligned with the connecting hole 6, so the lubricating oil falls directly into the interior of the connecting cylinder 9 for storage. When the reducer is needed, the piston cylinder 13 can be moved by rotating the lead screw 12, causing the piston cylinder 13 to squeeze the lubricating oil. The lubricating oil is then filtered through the filter screen frame 8 and enters the connecting pipe 2. The connecting pipe 2 is connected to the second cavity 5, so the lubricating oil can be squeezed into the second cavity 5 to continue its lubricating function. The filter screen frame 8 is equipped with a filter screen, which can filter the lubricating oil and intercept residual iron filings or sludge in the lubricating oil, preventing it from re-entering the second cavity 5 and affecting the normal operation of the transmission components. This makes it convenient to use. When the piston cylinder 13 moves to the rightmost end, the through hole 10 and the connecting hole... When piston cylinder 13 moves to the left, it blocks the through hole 10 and the connecting hole 6 when piston cylinder 13 is in the open state. This blockage continues until piston cylinder 13 reaches its leftmost position. To improve performance, a rubber sleeve is installed on the outside of connecting cylinder 9. This sleeve prevents lubricating oil from leaking between connecting cylinder 9 and the first cavity 4. By configuring the reducer housing 1 as the first cavity 4 and the second cavity 5, lubricating oil can be collected in the first cavity 4 when the reducer is not in use for extended periods. This reduces the risk of lubricating oil failure due to prolonged immersion in transmission components, which could affect their normal operation. If the lubricating oil is still within its shelf life, it can be reused and collected in the second cavity. In cavity 5, if the lubricating oil has been stored for a long time and has become ineffective or contains impurities such as sludge, it can be drained and no longer used. This serves the purpose of lubricating the reducer while protecting the internal transmission components. The connecting cylinder 9 is inserted into the second cavity 5. After insertion, it is threadedly connected to the second cavity 5 using the cover 16. The cover 16 is equipped with a sealing ring to provide a seal and reduce lubricating oil leakage. When the piston cylinder 13 needs to be moved, the lead screw 12 can be rotated directly. The end of the lead screw 12, which passes through the cover 16, is equipped with a handle for easy rotation. Rotation of the lead screw 12 drives the bushing to move. The bushing is fixed in the piston cylinder 13, which in turn drives the piston sleeve 14 to move on the limiting rod 11.The limiting rod 11 prevents the entire bushing and piston sleeve 14 from rotating with the lead screw 12. After the cover 16 is removed from the second cavity 5, the entire connecting cylinder 9 can be directly removed, facilitating the cleaning of the filter screen frame 8 on the connecting cylinder 9. The sealing sleeve 15 prevents lubricating oil from leaking out from the rotating connection between the lead screw 12 and the connecting cylinder 9. The piston sleeve 14 improves the sealing performance of the piston pressing lubricating oil. Combined with the sliding mechanical seal between the limiting rod 11 and the piston cylinder 13, the lubricating oil is prevented from leaking to the right end of the piston cylinder 13 when it presses lubricating oil, and all of it enters the connecting pipe 2. The frame 8 is detachably mounted on the connecting cylinder 9 via bolts, facilitating the cleaning of the filter screen on the filter screen frame 8 after disassembly of the connecting cylinder 9. A protruding rod allows the connecting cylinder 9 to slide into the first cavity 4, preventing it from rotating with the sealing cap 16 during sealing. This ensures that the through hole 10 on the connecting cylinder 9 aligns with the connecting hole 6. The connecting pipe 2 is connected to the injection pipe 3 via a connector 17, allowing lubricating oil to be injected into the second cavity 5. When lubricating oil needs to be discharged, the connector 17 can be disassembled from the injection pipe 3, and the piston cylinder 13 can then squeeze the lubricating oil out of the first cavity 4 for easy discharge.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-lubrication-maintaining speed reducer, comprising a speed reducer housing (1), characterized in that, The interior of the reducer housing (1) is divided into a first cavity (4) and a second cavity (5). A connecting hole (6) is provided between the first cavity (4) and the second cavity (5). A connecting cylinder (9) is provided inside the first cavity (4). A through hole (10) is provided on the surface of the connecting cylinder (9). A connecting pipe (2) is connected to the side wall of the first cavity (4). The end of the connecting pipe (2) away from the first cavity (4) is connected to the second cavity (5). A piston cylinder (13) is provided inside the connecting cylinder (9). A filter screen frame (8) is provided on the surface of the connecting cylinder (9) near the connecting pipe (2). A lead screw (12) for driving the piston cylinder (13) to move is provided inside the connecting cylinder (9).

2. The high-lubrication-maintaining speed reducer according to claim 1, characterized in that, The end of the connecting cylinder (9) is rotatably connected to a cover (16), the lead screw (12) rotates through the connecting cylinder (9), the surface of the cover (16) is provided with a round hole, the lead screw (12) passes through the round hole, the end of the first cavity (4) away from the connecting pipe (2) is set as an opening, the cover (16) and the opening of the first cavity (4) are threadedly connected, the piston cylinder (13) is fixedly connected to a bushing, the lead screw (12) and the bushing are threadedly connected, the connecting cylinder (9) is fixedly installed with three limiting rods (11), and the piston cylinder (13) and the limiting rods (11) are slidably connected.

3. The high-lubrication-maintaining speed reducer according to claim 2, characterized in that, The surface of the lead screw (12) is fixedly fitted with a sealing sleeve (15) relative to the position of the connecting cylinder (9), and the surface of the piston cylinder (13) is fixedly fitted with a piston sleeve (14). The limiting rod (11) and the piston cylinder (13) are connected by a sliding mechanical seal.

4. A high-lubrication-maintaining speed reducer according to claim 3, characterized in that, The surface of the filter frame (8) is provided with bolts, and the filter frame (8) is threadedly connected to the connecting cylinder (9) by bolts.

5. A high-lubrication-maintaining speed reducer according to claim 1, characterized in that, A protruding rod is fixedly installed on the outer wall of the connecting cylinder (9), and a sliding groove (7) is provided inside the first cavity (4). The connecting cylinder (9) is slidably inserted into the first cavity (4) through the protruding rod and the sliding groove (7).

6. A high-lubrication-maintaining speed reducer according to claim 1, characterized in that, The end of the connecting pipe (2) away from the first cavity (4) is connected to a connector (17), and an injection pipe (3) is fixedly inserted through the top of the reducer housing (1). The connector (17) and the injection pipe (3) are threaded together.

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