Low-noise high-efficiency high-precision planetary reducer

Abstract

The utility model relates to the technical field of planetary speed reducers, and discloses a low-noise efficient high-precision planetary speed reducer which comprises a machine shell, a piston cylinder and a filter box are fixedly installed on the left side of the machine shell, an input shaft is rotatably installed on the inner wall of the left side of the machine shell, the left end of the input shaft extends to the outer side of the machine shell, and the input shaft is located between the filter box and the piston cylinder; a gear moving mechanism is arranged between the input shaft and the gear ring, and a mounting frame is fixedly mounted on the inner wall of the top of the machine shell. A reciprocating mechanism is arranged in the mounting frame, a piston mechanism is arranged in the piston cylinder, a filtering mechanism is arranged in the filtering box, and an oil conveying mechanism is arranged between the filtering box and the machine shell. The gear has the following advantages and effects that by arranging the piston mechanism and the filtering mechanism, the purposes of effectively removing impurities in lubricating oil, preventing the impurities from forming a grinding medium between gear meshing surfaces, reducing gear abrasion and vibration and reducing noise caused by uneven friction and aggravation of impact can be achieved.

Description

Technical Field

[0001] This application relates to the field of planetary gear reducer technology, and in particular to a low-noise, high-efficiency, and high-precision planetary gear reducer. Background Technology

[0002] Planetary gear reducers are widely used industrial products that can reduce the speed of electric motors while increasing output torque. They are used as supporting components in industries such as lifting, excavation, transportation, and construction. During operation, traditional planetary gear reducers generate metal shavings and impurities in the lubricating oil due to gear friction. These impurities, once mixed with the lubricating oil, exacerbate wear on critical components such as gears and bearings, leading to decreased transmission accuracy. Furthermore, the presence of impurities disrupts the continuity of the lubricating oil film, causing abnormal vibrations and impacts during gear meshing, resulting in harsh mechanical noise. This not only affects the equipment's working environment but may also lead to equipment failure and shorten its service life.

[0003] In practical use, it has been found that the power transmission mechanism of the traditional filtration system and the reducer are independent of each other and lack an effective mechanical linkage design. This makes it impossible to fully utilize the kinetic energy of the reducer during operation to drive the filtration process, resulting in complex equipment structure and high energy consumption. Therefore, we propose a low-noise, high-efficiency, and high-precision planetary reducer to solve the above problems. Utility Model Content

[0004] The purpose of this application is to address the shortcomings of existing technologies, such as the independent power transmission mechanism of traditional filtration systems and reducers, the lack of effective mechanical linkage design, the inability to fully utilize the kinetic energy of the reducer during operation to drive the filtration process, resulting in complex equipment structure and high energy consumption. Therefore, this application proposes a low-noise, high-efficiency, and high-precision planetary reducer.

[0005] The above-mentioned technical objective of this application is achieved through the following technical solution: a low-noise, high-efficiency, and high-precision planetary reducer, comprising a housing, a piston cylinder and a filter box fixedly installed on the left side of the housing, an input shaft rotatably installed on the inner wall of the left side of the housing, the left end of the input shaft extending to the outside of the housing, the input shaft being located between the filter box and the piston cylinder, a gear ring being provided inside the housing, a gear drive mechanism being provided between the input shaft and the gear ring, a mounting bracket being fixedly installed on the inner wall of the top of the housing; a reciprocating mechanism being provided inside the mounting bracket, a piston mechanism being provided inside the piston cylinder, a filter mechanism being provided inside the filter box, an oil delivery mechanism being provided between the filter box and the housing, and a door being provided on the left side of the filter box.

[0006] A further configuration of this application is: the gear mechanism includes a sun gear and planet gears, a sun gear is fixedly sleeved on the input shaft, a planet gear is disposed inside the gear ring, the sun gear and the planet gear mesh with each other, and the planet gear meshes with the gear ring.

[0007] By adopting the above technical solution and by setting up a gear mechanism, the input shaft can drive the planetary gears to revolve around the sun gear and rotate on their own axis through the sun gear, thereby achieving the purpose of multi-stage power transmission and precise deceleration.

[0008] A further feature of this application is that the reciprocating mechanism includes a reciprocating lead screw and a lead screw seat, the same reciprocating lead screw is rotatably mounted on the inner walls of both sides of the mounting frame, the lead screw seat is threaded onto the reciprocating lead screw, and a transmission mechanism is provided between the reciprocating lead screw and the input shaft.

[0009] By adopting the above technical solution and by setting up a reciprocating mechanism, the reciprocating screw can drive the screw seat to move back and forth, thereby achieving the purpose of driving the piston rod to move back and forth.

[0010] A further configuration of this application is as follows: the transmission mechanism includes a driving wheel, a driven wheel, and a transmission belt. The driving wheel is fixedly sleeved on the input shaft and is located to the left of the sun gear. The driven wheel is fixedly sleeved on the reciprocating lead screw and is located to the right of the lead screw seat. The driving wheel and the driven wheel are connected by the same transmission belt.

[0011] By adopting the above technical solution and by setting up a transmission mechanism, the input shaft can drive the reciprocating lead screw to rotate synchronously.

[0012] A further configuration of this application is as follows: the piston mechanism includes a piston plate and a piston rod, the piston plate is slidably installed inside the piston cylinder, the piston rod is fixedly installed on the right side of the piston plate, the right end of the piston rod is fixedly connected to the left side of the lead screw seat, an oil suction pipe is provided on the right side of the piston cylinder, the bottom end of the oil suction pipe extends into the machine housing, a first one-way valve is provided on the piston plate, a second one-way valve is provided on the left end of the oil suction pipe, and the same oil discharge pipe is provided between the piston cylinder and the filter box, the oil discharge pipe being located on the left side of the piston plate.

[0013] By adopting the above technical solution and by setting up a piston mechanism, the piston rod can drive the piston plate to move back and forth, so that the lubricating oil in the machine housing can enter the piston cylinder through the oil extraction pipe and the second one-way valve, and the lubricating oil can be discharged into the filter box through the oil discharge pipe.

[0014] A further feature of this application is that the filtration mechanism includes a mounting base and a filter plate, with mounting bases provided on both inner walls of the filter box, the mounting bases being located below the box door, and the filter plate being provided on the mounting base.

[0015] By adopting the above technical solution and by setting up a filtration mechanism, impurities in the lubricating oil can be filtered through the filter plate, thereby preventing them from forming abrasive media between the gear meshing surfaces, reducing gear wear and vibration, and reducing noise caused by uneven friction and increased impact.

[0016] A further feature of this application is that the oil delivery mechanism includes an oil pump and an oil delivery pipe, an oil pump is provided at the front of the filter box, a common connecting pipe is provided between the oil pump and the filter box, the connecting pipe is located below the filter plate, and a common oil delivery pipe is provided between the oil pump and the machine casing.

[0017] By adopting the above technical solution and by setting up an oil delivery mechanism, the filtered lubricating oil can be delivered to the machine housing through an oil pump, thereby achieving the purpose of circulating and filtering the lubricating oil.

[0018] A further feature of this application is that the same fixing rod is fixedly installed on the inner walls of both sides of the mounting frame, the fixing rod is located above the reciprocating lead screw, and the lead screw seat is slidably sleeved on the fixing rod.

[0019] By adopting the above technical solution and by setting a fixed rod, the lead screw seat can move more smoothly when moving left and right.

[0020] The beneficial effects of this application are:

[0021] (1) Through the cooperation of the input shaft, sun gear, planet gear and gear ring, the input shaft can drive the sun gear to rotate, and the planet gear can be driven to revolve around the sun gear and rotate on its own axis, thereby realizing the purpose of multi-stage power transmission and precise deceleration;

[0022] (2) Through the cooperation of the driving wheel, driven wheel, transmission belt, reciprocating screw, screw seat, piston rod and piston plate, the input shaft can drive the piston plate to move back and forth. The lubricating oil in the machine housing can enter the piston cylinder through the oil extraction pipe and the second one-way valve. The lubricating oil can be discharged into the filter box through the oil drain pipe. The lubricating oil can be filtered through the filter plate. The impurities in the lubricating oil can be effectively removed, and the grinding media formed between the gear meshing surfaces can be avoided. The wear and vibration of the gears can be reduced, and the noise caused by uneven friction and increased impact can be reduced. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural schematic diagram of a low-noise, high-efficiency, and high-precision planetary reducer according to this application;

[0025] Figure 2 This is a schematic diagram of the internal structure of the housing of a low-noise, high-efficiency, and high-precision planetary reducer according to this application;

[0026] Figure 3 This is a schematic diagram of the internal structure of the piston cylinder and filter box of a low-noise, high-efficiency, and high-precision planetary reducer according to this application;

[0027] Figure 4 This is a schematic diagram of structure A of a low-noise, high-efficiency, and high-precision planetary reducer according to this application.

[0028] In the diagram: 1. Housing; 2. Piston cylinder; 3. Filter box; 4. Mounting bracket; 5. Oil pump; 6. Oil drain pipe; 7. Box door; 8. Fixing rod; 101. Input shaft; 102. Sun gear; 103. Gear ring; 104. Planetary gear; 105. Driving gear; 106. Driven gear; 107. Drive belt; 401. Reciprocating screw; 402. Screw seat; 201. Piston plate; 202. Piston rod; 203. Oil suction pipe; 204. First check valve; 205. Second check valve; 301. Mounting seat; 302. Filter plate; 501. Oil delivery pipe. Detailed Implementation

[0029] The technical solution of this application will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] See Figures 1-4 This application provides a low-noise, high-efficiency, and high-precision planetary reducer, including a housing 1. A piston cylinder 2 and a filter box 3 are fixedly installed on the left side of the housing 1. An input shaft 101 is rotatably installed on the inner wall of the left side of the housing 1. The left end of the input shaft 101 extends to the outside of the housing 1. The input shaft 101 is located between the filter box 3 and the piston cylinder 2. A gear ring 103 is provided inside the housing 1. A gear mechanism is provided between the input shaft 101 and the gear ring 103. A mounting bracket 4 is fixedly installed on the inner wall of the top of the housing 1. A reciprocating mechanism is provided inside the mounting bracket 4. A piston mechanism is provided inside the piston cylinder 2. A filtering mechanism is provided inside the filter box 3. An oil delivery mechanism is provided between the filter box 3 and the housing 1. A door 7 is provided on the left side of the filter box 3.

[0031] Specifically, the gear mechanism includes a sun gear 102 and planet gears 104. The sun gear 102 is fixedly sleeved on the input shaft 101, and the planet gears 104 are disposed inside the gear ring 103. The sun gear 102 and the planet gears 104 mesh with each other, and the planet gears 104 mesh with the gear ring 103.

[0032] Specifically, the reciprocating mechanism includes a reciprocating lead screw 401 and a lead screw seat 402. The same reciprocating lead screw 401 is rotatably mounted on the inner walls of both sides of the mounting frame 4. The lead screw seat 402 is threaded onto the reciprocating lead screw 401. A transmission mechanism is provided between the reciprocating lead screw 401 and the input shaft 101.

[0033] Specifically, the transmission mechanism includes a driving wheel 105, a driven wheel 106, and a transmission belt 107. The driving wheel 105 is fixedly sleeved on the input shaft 101 and is located to the left of the sun gear 102. The driven wheel 106 is fixedly sleeved on the reciprocating lead screw 401 and is located to the right of the lead screw seat 402. The driving wheel 105 and the driven wheel 106 are connected by the same transmission belt 107.

[0034] Specifically, the piston mechanism includes a piston plate 201 and a piston rod 202. The piston plate 201 is slidably installed inside the piston cylinder 2. The piston rod 202 is fixedly installed on the right side of the piston plate 201. The right end of the piston rod 202 is fixedly connected to the left side of the lead screw seat 402. An oil suction pipe 203 is provided on the right side of the piston cylinder 2. The bottom end of the oil suction pipe 203 extends into the housing 1. A first one-way valve 204 is provided on the piston plate 201. A second one-way valve 205 is provided on the left end of the oil suction pipe 203. The same oil discharge pipe 6 is provided between the piston cylinder 2 and the filter box 3. The oil discharge pipe 6 is located on the left side of the piston plate 201.

[0035] Specifically, the filtration mechanism includes a mounting base 301 and a filter plate 302. Mounting bases 301 are provided on both inner walls of the filter box 3. The mounting bases 301 are located below the door 7, and the filter plates 302 are provided on the mounting bases 301.

[0036] Specifically, the oil delivery mechanism includes an oil pump 5 and an oil delivery pipe 501. An oil pump 5 is installed on the front side of the filter box 3. The oil pump 5 and the filter box 3 are connected by the same connecting pipe. The connecting pipe is located below the filter plate 302. The oil pump 5 and the housing 1 are connected by the same oil delivery pipe 501.

[0037] Specifically, the same fixing rod 8 is fixedly installed on the inner walls of both sides of the mounting bracket 4. The fixing rod 8 is located above the reciprocating lead screw 401, and the lead screw seat 402 is slidably sleeved on the fixing rod 8.

[0038] In this application, during operation, power is input through the input shaft 101, which drives the sun gear 102, which is fixedly mounted on it, to rotate synchronously. The sun gear 102 meshes with the planet gears 104, driving the planet gears 104 to revolve around the sun gear 102 and rotate on their own axis. The planet gears 104 also mesh with the gear ring 103, thereby achieving multi-stage power transmission and precise speed reduction. When the input shaft 101 rotates, the driving wheel 105 on it can drive the driven wheel 106 and the reciprocating screw 401 to rotate through the transmission belt 107, which can drive the screw seat 402 to perform reciprocating linear motion on the reciprocating screw 401. The fixed rod 8 guides the screw seat 402. The reciprocating motion of the screw seat 402 can drive the piston plate 201 to perform reciprocating motion inside the piston cylinder 2 through the piston rod 202. When the piston plate 201 moves to the left, under the action of negative pressure, the lubricating oil in the housing 1 can... The lubricating oil enters the piston cylinder 2 through the oil extraction pipe 203 and the second one-way valve 205. When the piston plate 201 moves to the right, the lubricating oil in the piston cylinder 2 enters the left side of the piston plate 201 through the first one-way valve 204. When the piston plate 201 moves to the left again, the lubricating oil can be discharged into the filter box 3 through the oil drain pipe 6. The lubricating oil entering the filter box 3 can be filtered through the filter plate 302, and then transported back to the housing 1 by the oil pump 5 through the oil delivery pipe 501. Through continuous circulation filtration, impurities in the lubricating oil can be effectively removed, preventing them from forming abrasive media between the gear meshing surfaces, reducing gear wear and vibration, and reducing noise caused by uneven friction and increased impact. At the same time, the clean lubricating oil can form a more stable oil film on the gear surface, improving the lubrication effect, further reducing friction and noise between the gear surfaces, and achieving the purpose of low-noise operation.

Claims

1. A low-noise, high-efficiency, and high-precision planetary gear reducer, characterized in that, Includes a housing (1), on the left side of which a piston cylinder (2) and a filter box (3) are fixedly installed. An input shaft (101) is rotatably installed on the inner wall of the left side of the housing (1). The left end of the input shaft (101) extends to the outside of the housing (1). The input shaft (101) is located between the filter box (3) and the piston cylinder (2). A gear ring (103) is provided inside the housing (1). A gear mechanism is provided between the input shaft (101) and the gear ring (103). A mounting bracket (4) is fixedly installed on the inner wall of the top of the housing (1). The mounting bracket (4) is provided with a reciprocating mechanism, the piston cylinder (2) is provided with a piston mechanism, the filter box (3) is provided with a filter mechanism, the filter box (3) and the housing (1) are provided with an oil delivery mechanism, and the filter box (3) is provided with a door (7) on the left side. The gear mechanism includes a sun gear (102) and a planet gear (104). The sun gear (102) is fixedly sleeved on the input shaft (101). The planet gear (104) is disposed inside the gear ring (103). The sun gear (102) meshes with the planet gear (104), and the planet gear (104) meshes with the gear ring (103).

2. The low-noise, high-efficiency, and high-precision planetary reducer according to claim 1, characterized in that: The reciprocating mechanism includes a reciprocating lead screw (401) and a lead screw seat (402). The same reciprocating lead screw (401) is rotatably installed on the inner walls of both sides of the mounting frame (4). The lead screw seat (402) is threaded on the reciprocating lead screw (401). A transmission mechanism is provided between the reciprocating lead screw (401) and the input shaft (101).

3. The low-noise, high-efficiency, and high-precision planetary reducer according to claim 2, characterized in that: The transmission mechanism includes a drive wheel (105), a driven wheel (106), and a transmission belt (107). The drive wheel (105) is fixedly sleeved on the input shaft (101). The drive wheel (105) is located to the left of the sun gear (102). The driven wheel (106) is fixedly sleeved on the reciprocating screw (401). The driven wheel (106) is located to the right of the screw seat (402). The drive wheel (105) and the driven wheel (106) are connected by the same transmission belt (107).

4. The low-noise, high-efficiency, and high-precision planetary reducer according to claim 1, characterized in that: The piston mechanism includes a piston plate (201) and a piston rod (202). The piston plate (201) is slidably installed inside the piston cylinder (2). The piston rod (202) is fixedly installed on the right side of the piston plate (201). The right end of the piston rod (202) is fixedly connected to the left side of the screw seat (402). An oil suction pipe (203) is provided on the right side of the piston cylinder (2). The bottom end of the oil suction pipe (203) extends into the housing (1). A first one-way valve (204) is provided on the piston plate (201). A second one-way valve (205) is provided on the left end of the oil suction pipe (203). The same oil discharge pipe (6) is provided between the piston cylinder (2) and the filter box (3). The oil discharge pipe (6) is located on the left side of the piston plate (201).

5. The low-noise, high-efficiency, and high-precision planetary reducer according to claim 1, characterized in that: The filtration mechanism includes a mounting base (301) and a filter plate (302). The inner walls on both sides of the filter box (3) are provided with mounting bases (301). The mounting bases (301) are located below the box door (7). The filter plate (302) is provided on the mounting bases (301).

6. The low-noise, high-efficiency, and high-precision planetary reducer according to claim 1, characterized in that: The oil delivery mechanism includes an oil pump (5) and an oil delivery pipe (501). An oil pump (5) is provided on the front side of the filter box (3). The oil pump (5) and the filter box (3) are connected by the same connecting pipe. The connecting pipe is located below the filter plate (302). The oil pump (5) and the housing (1) are connected by the same oil delivery pipe (501).

7. The low-noise, high-efficiency, and high-precision planetary reducer according to claim 2, characterized in that: The same fixing rod (8) is fixedly installed on the inner walls of both sides of the mounting bracket (4). The fixing rod (8) is located above the reciprocating lead screw (401), and the lead screw seat (402) is slidably sleeved on the fixing rod (8).

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