Noise reduction type right-angle planetary reducer

Abstract

The invention discloses a noise reduction type right-angle planetary reducer, and belongs to the technical field of mechanical manufacturing, the noise reduction type right-angle planetary reducer comprises a shell, two mounting blocks are fixedly connected in the shell, bearings are rotatably connected in the two mounting blocks, one end of one bearing is provided with an input shaft, and the other end of the bearing is provided with an output shaft; one end of one bearing is provided with an input shaft, one end of the other bearing is provided with an output shaft, the inner ends of the two bearings are both provided with conical teeth, an oil bath lubricating mechanism is arranged in the shell, and a circulating cooling mechanism is arranged at the position, close to the oil bath lubricating mechanism, in the shell. When the gear is in use, enough lubricating oil can infiltrate the meshing position of the conical teeth in the oil bath groove inside the gear, the lubricating oil can form a layer of oil film between the meshing surfaces of the gear, and the oil film can effectively isolate direct contact between the tooth surfaces of the gear, so that vibration generated by friction between the tooth surfaces is reduced, and the effects of noise reduction and lubrication are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of mechanical manufacturing, and in particular relates to a noise-reducing right-angle planetary reducer. Background Art

[0002] As a key transmission device, the reducer plays an indispensable role. The right-angle planetary reducer is widely used in many fields due to its unique structure and superior performance. However, there is a significant problem in the operation of the traditional right-angle planetary reducer - noise. During the gear meshing process, vibration and noise will inevitably occur due to the influence of various factors such as tooth surface contact stress, manufacturing error, assembly accuracy and lubrication conditions. Therefore, how to reduce noise has become a top priority.

[0003] Traditional noise reduction is achieved by continuously improving the accuracy of bevel gears. Although it can effectively reduce the vibration caused by tooth profile error and roughness, as the working time of the gears increases, there is a lack of corresponding lubrication treatment, which causes the accuracy of the gears to continue to decrease as the working time increases. Ultimately, due to the vibration caused by the accuracy causing noise, the gears need to be replaced, which increases production costs and consumes time to replace, reducing work efficiency. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide a noise-reducing right-angle planetary reducer.

[0005] The technical solution adopted to solve the above technical problems is: a noise-reducing right-angle planetary reducer, comprising a housing, two mounting blocks are fixedly connected inside the housing, bearings are rotatably connected inside the two mounting blocks, an input shaft is installed at one end of one of the bearings, and an output shaft is installed at one end of the other bearing;

[0006] The inner ends of the two bearings are both provided with conical teeth, an oil bath lubrication mechanism is provided inside the housing, and a circulating cooling mechanism is provided inside the housing near the oil bath lubrication mechanism.

[0007] Furthermore, the two conical teeth mesh with each other.

[0008] Through the above technical solution, when two conical teeth mesh with each other, in the process of transmitting power, the contact between the teeth is gradually carried out along the tooth surface. The structure of the conical teeth is simpler and more direct, reducing the error accumulation and energy loss in the intermediate transmission link.

[0009] Furthermore, the oil bath lubrication mechanism includes an oil bath tank installed inside the shell, one side of the oil bath tank is fixedly connected to an oil inlet pipe, the outer wall of the oil inlet pipe is installed with a flow regulating valve, one side of one of the conical teeth is fixedly connected to a plurality of stirring blades, a filter is installed on the inner wall of the oil bath tank, a connecting pipe is fixedly connected to one side of the oil bath tank near the filter position, a drain pipe is installed on one side of the oil bath tank near the connecting pipe position, and one side of the two mounting blocks is provided with an oil guide groove.

[0010] Through the above technical solution, the flow regulating valve on the oil inlet pipe can accurately control the amount of lubricating oil entering the oil bath, ensuring that there is always enough lubricating oil inside the oil bath to soak the meshing parts of the tapered teeth, and when the tapered teeth rotate, the stirring blades rotate accordingly, and the lubricating oil at the bottom of the oil bath can be stirred upward, so that the lubricating oil can be more evenly distributed in the entire oil bath, ensuring that each meshing part can be fully lubricated, the filter installed on the inner wall of the oil bath can filter impurities in the lubricating oil, the connecting pipe can transport the lubricating oil that has been preliminarily filtered to the bearing for use by the bearing, and the oil guide groove can guide the used lubricating oil of the bearing to flow to the key circulating cooling mechanism below.

[0011] Furthermore, the oil bath tank has a semi-arc hollow structure, and the inner wall is coated with oil-resistant and rust-proof paint.

[0012] Through the above technical solution, the semi-arc hollow structure of the oil bath tank is conducive to the gathering of lubricating oil, and the semi-arc bottom can better guide the flow of oil to ensure that the gears are always sufficiently soaked in lubricating oil. The inner wall of the oil bath tank is coated with oil-resistant anti-rust paint, which can effectively prevent the tank wall from rusting and being corroded by lubricating oil. By coating with oil-resistant anti-rust paint, the service life of the oil bath tank is significantly extended, greatly reducing the maintenance cost of the equipment.

[0013] Furthermore, a pipeline connected to the connecting pipe is provided inside the mounting block, and the other end of the connecting pipe is attached to the outer wall of the bearing.

[0014] Through the above technical solution, a channel is provided for the lubricating oil to directly lead to the bearing. In the oil bath lubrication system, the lubricating oil is accurately transported from the oil bath tank to the outer wall of the bearing through the connecting pipe, ensuring that the bearing can be lubricated in a timely and sufficient manner, avoiding the dispersion and waste of the lubricating oil during the transmission process, and making the lubrication more efficient.

[0015] Furthermore, the circulating cooling mechanism includes an oil storage tank installed inside the shell, a filter plate is fixedly connected to the interior of the oil storage tank, a first cooling plate and a second cooling plate are respectively fixedly connected to the interior of the oil storage tank, a waste box corresponding to the filter plate is installed inside the shell, a circulating pipe is fixedly connected to one side of the shell near the waste box, and an oil supply pump is installed on the outer wall of the circulating pipe.

[0016] Through the above technical solution, the used lubricating oil will enter the oil storage tank, and the filter plate will filter the lubricating oil discharged from the drain pipe. Because the filter plate is inclined at °, the impurities on the filter plate will continue to roll, and finally press the rotating door to enter the waste box, completing the automatic collection of waste, and the filtered lubricating oil will enter the first cooling plate and the second cooling plate. At this time, the high-temperature lubricating oil will cool down while rolling on the first cooling plate and the second cooling plate, and finally be extracted by the oil supply pump and enter the oil bath tank through the circulation pipe for the next oil bath lubrication.

[0017] Furthermore, the filter plate and the first cooling plate are both installed inside the oil storage tank at an inclination angle of °.

[0018] Through the above technical solution, when the lubricating oil flows through the filter plate, impurities and waste residue will be intercepted. Due to the existence of the inclination angle, the intercepted waste residue is more likely to slide to the lower end of the filter plate under the action of gravity, which can prevent excessive accumulation of waste residue and block the filter plate, thereby ensuring the continuation of the filtration process and facilitating unified collection and treatment. The inclined first cooling plate can guide the coolant to flow along the inclined direction, increase the contact time and contact area between the coolant and the first cooling plate, thereby taking away more heat.

[0019] Furthermore, the inner wall of the oil storage tank is rotatably connected to a rotating door, and the outer wall of the waste box is attached to the outer wall of the rotating door.

[0020] Through the above technical solution, the inner wall of the oil storage tank is rotatably connected to the rotating door, and this design provides a convenient outlet for cleaning the waste residue. When it is necessary to clean the waste residue intercepted by the filter plate in the oil storage tank, the rotating door will rotate under the pressure of a large amount of accumulated waste residue, and the waste residue can be discharged smoothly through this opening.

[0021] The beneficial effects of the present invention are as follows: (1) The present invention designs an oil bath lubrication mechanism, and the oil bath tank inside it has sufficient lubricating oil to soak the meshing parts of the conical teeth. The lubricating oil will form an oil film between the meshing surfaces of the gears. This oil film can effectively isolate the direct contact between the gear tooth surfaces, thereby reducing the vibration caused by friction between the tooth surfaces, achieving the effect of noise reduction and lubrication. The connecting pipe can also transport the lubricating oil that has been preliminarily filtered to the bearing for use by the bearing. The oil bath lubrication can provide sufficient lubricating oil for the bearing, reduce the friction inside the bearing, ensure that the bearing runs in a well-lubricated state, reduce the vibration caused by such friction, and thus reduce the noise generated by the operation of the bearing. Multiple means are used to reduce noise; (2) The present invention uses a circulating cooling mechanism, and the used lubricating oil will be filtered and cooled in the circulating cooling mechanism, and finally supplied to the oil bath lubrication mechanism by the circulating pipe, which can save lubricating oil to a great extent and perform a good cooling treatment on the internal parts of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a stereogram of the present invention;

[0023] Figure 2 It is a schematic diagram of the internal structure of the housing of the present invention;

[0024] Figure 3 It is a schematic diagram of the conical gear structure of the present invention;

[0025] Figure 4 It is a schematic diagram of the oil bath lubrication mechanism of the present invention;

[0026] Figure 5 It is a schematic diagram of the connecting pipe structure of the present invention;

[0027] Figure 6 It is a schematic diagram of the oil guide groove structure of the present invention;

[0028] Figure 7 It is a schematic diagram of the circulating cooling mechanism of the present invention.

[0029] Figure numerals: 1. Shell; 2. Mounting block; 3. Bearing; 4. Input shaft; 5. Output shaft; 6. Conical gear; 7. Oil bath lubrication mechanism; 701. Oil bath tank; 702. Oil inlet pipe; 703. Flow regulating valve; 704. Stirring blade; 705. Filter screen; 706. Connecting pipe; 707. Drain pipe; 708. Oil guide groove; 8. Circulating cooling mechanism; 801. Oil storage tank; 802. Filter plate; 803. First cooling plate; 804. Second cooling plate; 805. Waste box; 806. Circulating pipe; 807. Oil supply pump. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] like Figure 1 - Figure 3 As shown, a noise-reducing right-angle planetary reducer of the present embodiment includes a housing 1, two mounting blocks 2 are fixedly connected inside the housing 1, bearings 3 are rotatably connected inside the two mounting blocks 2, an input shaft 4 is installed at one end of one bearing 3, and an output shaft 5 is installed at one end of the other bearing 3, and conical teeth 6 are installed at the inner ends of the two bearings 3, and the two conical teeth 6 are meshed with each other. When the two conical teeth 6 are meshed with each other, in the process of transmitting power, the contact between the teeth is gradually carried out along the tooth surface, and the structure of the conical teeth 6 is simpler and more direct, which reduces the error accumulation and energy loss of the intermediate transmission link.

[0032] like Figure 4- Figure 6 As shown, an oil bath lubrication mechanism 7 is provided inside the housing 1, and the oil bath lubrication mechanism 7 includes an oil bath tank 701 installed inside the housing 1, and the oil bath tank 701 is a semi-arc hollow structure, and the inner wall is coated with oil-resistant anti-rust paint. The semi-arc hollow structure of the oil bath tank 701 is conducive to the gathering of lubricating oil, and the semi-arc bottom can better guide the flow of oil to ensure that the gears are always sufficiently immersed in lubricating oil. The inner wall of the oil bath tank 701 is coated with oil-resistant anti-rust paint, which can effectively prevent the tank wall from rusting and being corroded by lubricating oil. By coating with oil-resistant anti-rust paint, the service life of the oil bath tank 701 is significantly extended, which greatly reduces the maintenance cost of the equipment. One side of the oil bath tank 701 is fixedly connected to an oil inlet pipe 702, and the outer wall of the oil inlet pipe 702 is installed with a flow regulating valve 703, one side of which is fixed with a conical tooth 6. It is connected with a plurality of stirring blades 704, a filter screen 705 is installed on the inner wall of the oil bath tank 701, a connecting pipe 706 is fixedly connected to one side of the oil bath tank 701 near the filter screen 705, a pipeline connected to the connecting pipe 706 is provided inside the mounting block 2, and the other end of the connecting pipe 706 is attached to the outer wall of the bearing 3, thus providing a channel for the lubricating oil to directly lead to the bearing 3. In the oil bath lubrication system, the lubricating oil is accurately transported from the oil bath tank 701 to the outer wall of the bearing 3 through the connecting pipe 706, ensuring that the bearing 3 can be lubricated in a timely and sufficient manner, avoiding the dispersion and waste of the lubricating oil during the transmission process, and making the lubrication more efficient. A drain pipe 707 is installed on one side of the oil bath tank 701 near the connecting pipe 706, and an oil guide groove 708 is provided on one side of the two mounting blocks 2.

[0033] like Figure 4 - Figure 6 As shown, the flow regulating valve 703 on the oil inlet pipe 702 can accurately control the amount of lubricating oil entering the oil bath 701, ensuring that there is always enough lubricating oil inside the oil bath 701 to soak the meshing part of the conical teeth 6, and when the conical teeth 6 rotate, the stirring blade 704 rotates accordingly, and can stir the lubricating oil at the bottom of the oil bath 701 upward, so that the lubricating oil can be more evenly distributed in the entire oil bath 701, ensuring that each meshing part can be fully lubricated, the filter screen 705 installed on the inner wall of the oil bath 701 can filter impurities in the lubricating oil, the connecting pipe 706 can transport the lubricating oil that has been preliminarily filtered to the bearing 3 for use by the bearing 3, and the oil guide groove 708 can guide the used lubricating oil of the bearing 3 to flow to the key circulating cooling mechanism 8 below.

[0034] like Figure 7As shown, a circulating cooling mechanism 8 is arranged inside the housing 1 near the oil bath lubrication mechanism 7, and the circulating cooling mechanism 8 includes an oil storage tank 801 installed inside the housing 1, and a filter plate 802 is fixedly connected inside the oil storage tank 801, and a first cooling plate 803 and a second cooling plate 804 are respectively fixedly connected inside the oil storage tank 801, and the filter plate 802 and the first cooling plate 803 are both installed inside the oil storage tank 801 at an inclination angle of 30°. When the lubricating oil flows through the filter plate 802, impurities and waste residues will be intercepted. Due to the existence of the inclination angle, the intercepted waste residues are more likely to slide to the bottom end of the filter plate 802 under the action of gravity. This can prevent the waste residue from clogging the filter plate 802 due to excessive accumulation, ensure the continuous filtering process and facilitate unified collection and treatment. The inclined first cooling plate 803 can guide the coolant to flow along the inclined direction, increase the contact time and contact area between the coolant and the first cooling plate 803, and thus take away more heat. The inside of the shell 1 is equipped with a waste box 805 corresponding to the filter plate 802. The inner wall of the oil storage tank 801 is rotatably connected with a rotating door, and the outer wall of the waste box 805 is attached to the outer wall of the rotating door. The inner wall of the oil storage tank 801 is rotatably connected with the rotating door. This design provides a convenient outlet for cleaning the waste residue. When it is necessary to clean the waste residue intercepted by the filter plate 802 in the oil storage tank 801, the rotating door will rotate under the pressure of a large amount of accumulated waste residue, and the waste residue can be discharged smoothly through this opening. A circulation pipe 806 is fixedly connected to one side of the shell 1 near the waste box 805, and an oil supply pump 807 is installed on the outer wall of the circulation pipe 806.

[0035] like Figure 7 As shown, the used lubricating oil will enter the oil storage tank 801, and the filter plate 802 will filter the lubricating oil discharged from the drain pipe 707. Because the filter plate 802 is inclined at 30 degrees, the impurities on the filter plate 802 will continue to roll, and finally press the rotating door and enter the waste box 805 to complete the automatic collection of waste. The filtered lubricating oil will enter the first cooling plate 803 and the second cooling plate 804. At this time, the high-temperature lubricating oil will cool down while rolling on the first cooling plate 803 and the second cooling plate 804, and finally be extracted by the oil supply pump 807 and enter the oil bath tank 701 through the circulation pipe 806 for the next oil bath lubrication.

[0036] The working principle of this embodiment is as follows. After the staff completes the installation of the entire device, power is input to the input shaft 4, and the meshing conical teeth 6 drive the output shaft 5 to output. When the two conical teeth 6 rotate, the oil bath lubrication mechanism 7 is also working. The flow regulating valve 703 on the oil inlet pipe 702 can accurately control the amount of lubricating oil entering the oil bath tank 701, ensuring that there is always enough lubricating oil in the oil bath tank 701 to soak the meshing part of the conical teeth 6. The lubricating oil will form an oil film between the meshing surfaces of the gears. This oil film can effectively isolate the direct contact between the gear tooth surfaces, thereby reducing the vibration caused by friction between the tooth surfaces, achieving the effect of noise reduction and lubrication. The connecting pipe 706 can transport the lubricating oil that has been preliminarily filtered to the bearing 3 for use by the bearing 3. The oil bath lubrication can provide sufficient lubricating oil for the bearing 3, reduce the friction inside the bearing 3, ensure that the bearing 3 runs in a good lubricated state, reduce the vibration caused by this friction, and thus reduce the noise generated by the operation of the bearing 3.

[0037] The used lubricating oil will enter the oil storage tank 801, and the filter plate 802 will filter the lubricating oil discharged from the drain pipe 707. Because the filter plate 802 is inclined at 30 degrees, the impurities on the filter plate 802 will continue to roll, and finally press the rotating door and enter the waste box 805 to complete the automatic collection of waste. The filtered lubricating oil will enter the first cooling plate 803 and the second cooling plate 804. At this time, the high-temperature lubricating oil will cool down while rolling on the first cooling plate 803 and the second cooling plate 804, and finally be extracted by the oil supply pump 807 and enter the oil bath tank 701 through the circulation pipe 806 for the next oil bath lubrication.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A noise-reducing right-angle planetary reducer, comprising a housing (1), characterized in that: Two mounting blocks (2) are fixedly connected inside the housing (1), and bearings (3) are rotatably connected inside the two mounting blocks (2), an input shaft (4) is mounted on one end of one of the bearings (3), and an output shaft (5) is mounted on one end of the other bearing (3); The inner ends of the two bearings (3) are both provided with conical teeth (6), an oil bath lubrication mechanism (7) is provided inside the housing (1), and a circulating cooling mechanism (8) is provided inside the housing (1) near the oil bath lubrication mechanism (7).

2. The noise reduction right-angle planetary reducer according to claim 1, characterized in that: The two conical teeth (6) mesh with each other.

3. The noise reduction right-angle planetary reducer according to claim 1, characterized in that: The oil bath lubrication mechanism (7) comprises an oil bath tank (701) installed inside the housing (1); an oil inlet pipe (702) is fixedly connected to one side of the oil bath tank (701); a flow regulating valve (703) is installed on the outer wall of the oil inlet pipe (702); a plurality of stirring blades (704) are fixedly connected to one side of one of the conical teeth (6); a filter screen (705) is installed on the inner wall of the oil bath tank (701); a connecting pipe (706) is fixedly connected to one side of the oil bath tank (701) near the filter screen (705); a drain pipe (707) is installed on one side of the oil bath tank (701) near the connecting pipe (706); and one side of the two mounting blocks (2) is provided with an oil guide groove (708).

4. The noise reduction right-angle planetary reducer according to claim 3, characterized in that: The oil bath tank (701) is a semi-arc hollow structure, and the inner wall is coated with oil-resistant and rust-proof paint.

5. The noise reduction right-angle planetary reducer according to claim 3, characterized in that: A pipeline connected to a connecting pipe (706) is provided inside the mounting block (2), and the other end of the connecting pipe (706) is connected to the outer wall of the bearing (3).

6. The noise reduction right-angle planetary reducer according to claim 1, characterized in that: The circulating cooling mechanism (8) comprises an oil storage tank (801) installed inside the shell (1), a filter plate (802) is fixedly connected inside the oil storage tank (801), a first cooling plate (803) and a second cooling plate (804) are respectively fixedly connected inside the oil storage tank (801), a waste box (805) corresponding to the filter plate (802) is installed inside the shell (1), a circulating pipe (806) is fixedly connected to one side of the shell (1) near the waste box (805), and an oil supply pump (807) is installed on the outer wall of the circulating pipe (806).

7. The noise reduction right-angle planetary reducer according to claim 6, characterized in that: The filter plate (802) and the first cooling plate (803) are both installed inside the oil storage tank (801) at an inclined angle of 30°.

8. The noise reduction right-angle planetary reducer according to claim 6, characterized in that: The inner wall of the oil storage tank (801) is rotatably connected to a rotating door, and the outer wall of the waste box (805) is in contact with the outer wall of the rotating door.

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