Self-lubricating structure of planetary gear type speed reducer

Abstract

The utility model discloses a self-lubricating structure of a planetary gear type speed reducer, which comprises a speed reducer casing, a collecting tank is arranged on the bottom side of the speed reducer casing, and a lubricating oil collecting structure is mounted in the collecting tank. According to the planetary gear, the lubricating oil collecting structure is installed, lubricating oil dripped and accumulated at the bottom of the inner gear ring can be collected in the collecting frame through the leakage holes, the lubricating oil can be taken down at any time to be poured in the working process, replacement is convenient, and operation is easy; when the planetary gears rotate, a first spring telescopic rod is thrown to the outer side due to the centrifugal effect, and a plugging block is separated from an oil sealing opening, so that lubricating oil in an oil storage cavity can be leaked out, self-lubrication is conducted on an inner gear ring, a sun gear and the planetary gears through meshing, and the lubricating effect is fast due to the fact that the planetary gears are arranged on the periphery.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer technology, specifically a self-lubricating structure for a planetary gear speed reducer. Background Technology

[0002] Planetary gear reducers reduce friction, wear, and extend gear life through lubrication. However, traditional lubrication methods require manual addition of lubricating oil to lubricate the gear components, which increases the burden.

[0003] The prior art, disclosed in patent document CN219082181U, presents the following technical solution: a planetary gear for a speed reducer that facilitates drip lubrication, comprising a ring gear and a planetary carrier. A disk is fixedly connected to one side of the ring gear, and an input shaft is movably connected to one side of the disk. A notch is provided on one side of the input shaft, and a rotating rod is movably connected within the notch. A rotating block is fixedly connected to the outer circumference of the rotating rod, and a top block is provided on one side of the rotating block, with the top block located within the notch. A torsion spring is movably connected to the outer circumference of the rotating rod, and both ends of the torsion spring are fixed to the rotating rod and the input shaft, respectively.

[0004] The above technical solution enables the planetary gears to self-lubricate through rotation, but the remaining lubricating oil dripping into the ring gear cannot be collected, resulting in a waste of lubricating oil. Utility Model Content

[0005] The purpose of this invention is to provide a self-lubricating structure for a planetary gear reducer to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a self-lubricating structure for a planetary gear reducer, comprising a reducer housing, a collection groove being provided on the bottom side of the reducer housing, and a lubricating oil collection structure being installed in the collection groove.

[0007] The lubricating oil collection structure includes a collection frame. L-shaped mounting grooves are provided at both ends of the front side of the collection frame. A second spring telescopic rod is provided inside each L-shaped mounting groove. An L-shaped insertion plate is provided on the other side of each spring telescopic rod. The outer wall of the L-shaped insertion plate is slidably connected to the inner wall of the L-shaped mounting groove. Mounting plates are fixedly connected to both ends of the front side of the reducer housing, located at the opening of the collection groove. Insertion grooves are provided at opposite ends of the two mounting plates. The L-shaped insertion plates are inserted into the insertion grooves. Limiting holes are provided between the L-shaped insertion plates and the collection frame. Limiting rods are inserted between the limiting holes. An internal gear ring is provided in the circumferential direction on the inner side of the reducer housing. Leakage holes are arranged on the bottom side of the internal gear ring and are located above the collection frame.

[0008] In the above technical solution, the lubricating oil dripping and accumulating at the bottom of the internal gear ring can be collected in the collection frame through the leakage hole, and can be removed and poured out at any time during operation.

[0009] As a further preferred embodiment of this technical solution, the internal gear ring is meshed with planetary gears, and the planetary gears are meshed with sun gears.

[0010] As a further preferred embodiment of this technical solution, an oil storage chamber is provided on one side of the planetary gear, and a sealing cover is provided at the opening of the oil storage chamber by means of a rivet.

[0011] In the above technical solution, when replenishing lubricating oil in the oil reservoir, the reducer housing can be disassembled and the rivets around the sealing cover can be removed to replenish lubricating oil in the oil reservoir.

[0012] As a further preferred embodiment of this technical solution, oil outlet holes are arranged on the outer side of the oil storage cavity, the oil outlet holes are located between two teeth, and each oil outlet hole is provided with an oil outlet pipe.

[0013] As a further preferred embodiment of this technical solution, an annular frame is fixedly connected to one end of the oil outlet pipe, a spring telescopic rod is provided on the inner side of the annular frame, and a sealing block is provided on the other end of the spring telescopic rod.

[0014] In the above technical solution, the centrifugal force causes the spring telescopic rod to swing outward, causing the sealing block to separate from the oil sealing port, thereby allowing the lubricating oil in the oil storage chamber to leak out.

[0015] As a further preferred embodiment of this technical solution, an oil sealing port is provided at one end of the inner side of the oil outlet pipe, and the sealing block is sealed inside the oil sealing port.

[0016] As a further preferred embodiment of this technical solution, the outer wall of the collection frame is slidably connected to the inner wall of the collection trough.

[0017] The above technical solution facilitates the retrieval of the collection box and has a positioning function.

[0018] This utility model provides a self-lubricating structure for a planetary gear reducer, which has the following beneficial effects:

[0019] (1) This utility model opens an oil storage chamber in the planetary gear and opens an oil outlet hole around the oil storage chamber. When the planetary gear rotates, the spring extension rod is thrown outward due to centrifugal force, and the sealing block is separated from the oil sealing port, so that the lubricating oil in the oil storage chamber can be leaked out. Through meshing, the internal gear ring, sun gear and planetary gear are self-lubricated. The planetary gear is set around the perimeter, so the lubrication effect is faster.

[0020] (2) By installing a lubricating oil collection structure, the lubricating oil dripping and accumulating at the bottom of the inner gear ring can be collected in the collection frame through the leakage hole. During the operation, it can be removed and poured out at any time. The user can remove the limiting rods at both ends and press the L-shaped plug plates on both sides to disengage them from the plug slot, so that the collection frame can be taken out for easy replacement and simple operation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a partial cross-sectional view of the planetary gear of this utility model;

[0023] Figure 3 This is a cross-sectional view of the oil outlet pipe of this utility model;

[0024] Figure 4 This is an enlarged view of Figure A of this utility model;

[0025] Figure 5 This is a schematic diagram of the lubricating oil collection structure of this utility model;

[0026] Figure 6 This is an enlarged view of the B-line diagram of this utility model;

[0027] In the diagram: 1. Gearbox housing; 11. Internal gear ring; 12. Sun gear; 13. Planetary gear; 14. Collection trough; 15. Leakage hole; 131. Oil storage chamber; 132. Sealing cover; 133. Oil outlet; 134. Oil outlet pipe; 135. Oil sealing port; 136. Ring frame; 137. Spring telescopic rod one; 138. Sealing block; 2. Lubricating oil collection structure; 21. Collection frame; 22. Mounting plate; 23. Insertion groove; 24. L-shaped mounting groove; 25. Spring telescopic rod two; 26. L-shaped insertion plate; 27. Limiting hole; 28. Limiting rod. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0029] This utility model provides a technical solution: such as Figure 1 and Figure 2 As shown in the figure, in this embodiment, a self-lubricating structure of a planetary gear reducer includes a reducer housing 1, a collection groove 14 is provided on the bottom side of the reducer housing 1, a planetary gear 13 is meshed on the teeth of the inner gear ring 11, a sun gear 12 is meshed on the teeth of the planetary gears 13, and a lubricating oil collection structure 2 is installed in the collection groove 14.

[0030] like Figure 3 and Figure 4 As shown, an oil reservoir 131 is provided on one side of the planetary gear 13. A sealing cap 132 is provided at the opening of the oil reservoir 131 by rivets. Oil outlet holes 133 are arranged on the outer side of the inside of the oil reservoir 131. The oil outlet holes 133 are located between two teeth. An oil outlet pipe 134 is provided in each oil outlet hole 133. An annular frame 136 is fixedly connected to one end of each oil outlet pipe 134. A spring telescopic rod 137 is provided on the inner side of each annular frame 136. A sealing block 138 is provided at the other end of each spring telescopic rod 137. An oil sealing port is provided at one end of the oil outlet pipe 134. 135, the sealing block 138 is sealed inside the oil sealing port 135. By opening an oil storage chamber 131 inside the planetary gear 13, and opening oil outlet holes 133 around the oil storage chamber 131, when the planetary gear 13 rotates, the spring extension rod 137 is thrown outward due to centrifugal force, and the sealing block 138 is separated from the oil sealing port 135, so that the lubricating oil in the oil storage chamber 131 can leak out. Through meshing, the internal gear ring 11, the sun gear 12 and the planetary gear 13 are self-lubricated, and the planetary gear 13 is arranged around the perimeter, so that the lubrication effect is faster.

[0031] like Figure 5 and Figure 6 As shown, the lubricating oil collection structure 2 includes a collection frame 21. The outer wall of the collection frame 21 is slidably connected to the inner wall of the collection groove 14. L-shaped mounting grooves 24 are provided at both ends of the front side of the collection frame 21. A spring telescopic rod 25 is provided inside each L-shaped mounting groove 24. An L-shaped insertion plate 26 is provided on the other side of each spring telescopic rod 25. The outer wall of the L-shaped insertion plate 26 is slidably connected to the inner wall of the L-shaped mounting groove 24. Mounting plates 22 are fixedly connected to both ends of the front side of the reducer housing 1, located at the opening of the collection groove 14. Insertion grooves 23 are provided at opposite ends of the two mounting plates 22. The L-shaped insertion plates 26 are inserted into the insertion grooves 23. An opening is provided between the L-shaped insertion plates 26 and the collection frame 21. The reducer housing 1 is equipped with limiting holes 27, and limiting rods 28 are inserted between each limiting hole 27. An internal gear ring 11 is arranged in the circumferential direction on the inner side of the reducer housing 1. Leakage holes 15 are arranged on the bottom side of the internal gear ring 11 and are located above the collection frame 21. By installing the lubricating oil collection structure 2, the lubricating oil dripping and accumulating at the bottom of the internal gear ring 11 can be collected in the collection frame 21 through the leakage holes 15. It can be removed and poured out at any time during operation. The user can remove the limiting rods 28 at both ends and press the L-shaped plug plates 26 on both sides to disengage them from the plug slots 23, thereby allowing the collection frame 21 to be removed for easy replacement and simple operation.

[0032] This utility model provides a self-lubricating structure for a planetary gear reducer. The specific working principle is as follows: When the planetary gear reducer is running, the sun gear 12 and planetary gear 13 are driven. During the transmission process, due to centrifugal force, the spring extension rod 137 is thrown outward, and the sealing block 138 is separated from the oil sealing port 135, thereby allowing the lubricating oil in the oil storage chamber 131 to leak out. Through meshing, the internal gear ring 11, sun gear 12 and planetary gear 13 are self-lubricated. The leakage hole 15 can collect the lubricating oil dripping and accumulating at the bottom of the internal gear ring 11 in the collection frame 21. During the operation, it can be removed and poured out at any time. The user can remove the limiting rods 28 at both ends and press the L-shaped plug plates 26 on both sides to disengage them from the plug slots 23, thereby allowing the collection frame 21 to be removed.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-lubricating structure of a planetary gear type speed reducer comprising a speed reducer casing (1), characterized by: The reducer housing (1) has a collection groove (14) on its bottom side, and a lubricating oil collection structure (2) is installed in the collection groove (14). The lubricating oil collection structure (2) includes a collection frame (21). L-shaped mounting grooves (24) are provided at both ends of the front side of the collection frame (21). A spring telescopic rod (25) is provided inside each of the L-shaped mounting grooves (24). An L-shaped plug-in plate (26) is provided on the other side of each of the spring telescopic rods (25). The outer wall of the L-shaped plug-in plate (26) is slidably connected to the inner wall of the L-shaped mounting groove (24). Mounting plates (22) are fixedly connected to both ends of the front side of the reducer housing (1) at the opening of the collection groove (14). The mounting plate (22) has a plug-in slot (23) at one end facing each other. The L-shaped plug-in plate (26) is plugged into the plug-in slot (23). The L-shaped plug-in plate (26) and the collection frame (21) are both provided with limit holes (27). Limit rods (28) are inserted between the limit holes (27). An internal gear ring (11) is provided in the circumferential direction on the inner side of the reducer housing (1). Leakage holes (15) are arranged on the bottom side of the internal gear ring (11). The leakage holes (15) are located above the collection frame (21).

2. A self-lubricating structure of a planetary gear type speed reducer according to claim 1, characterized in that: The internal gear ring (11) is meshed with planetary gears (13), and the planetary gears (13) are meshed with sun gears (12).

3. A self-lubricating structure of a planetary gear type speed reducer according to claim 1, characterized in that: The planetary gear (13) has an oil storage chamber (131) on one side, and a sealing cover (132) is provided at the opening of the oil storage chamber (131) by means of a rivet.

4. A self-lubricating structure of a planetary gear type speed reducer according to claim 3, characterized in that: Oil outlet holes (133) are arranged on the outer side of the oil storage cavity (131). The oil outlet holes (133) are located between two teeth, and each oil outlet hole (133) is provided with an oil outlet pipe (134).

5. A self-lubricating structure of a planetary gear type speed reducer according to claim 4, characterized in that: One end of the oil outlet pipe (134) is fixedly connected to a ring frame (136), and a spring telescopic rod (137) is provided on the inner side of the ring frame (136). A sealing block (138) is provided on the other end of the spring telescopic rod (137).

6. A self-lubricating structure of a planetary gear type speed reducer according to claim 5, characterized in that: The oil outlet pipe (134) has an oil sealing port (135) at one end on the inside, and the sealing block (138) is sealed inside the oil sealing port (135).

7. A self-lubricating structure of a planetary gear type speed reducer according to claim 1, characterized by: The outer wall of the collection frame (21) is slidably connected to the inner wall of the collection groove (14).

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