Speed reducer structure of extruder
By designing a reducer structure with input gear, connecting gear, and driven gear in the plastic extruder, and combining it with a heat exchanger and oil pump system, the problems of high temperature rise, large vibration, and high noise in the plastic extruder reducer were solved, and the equipment was made efficient.
Patent Information
- Application Number
- CN202423255672.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-28
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-28
AI Technical Summary
Existing plastic extruder reducers suffer from problems such as high temperature rise, large vibration, high noise, and low efficiency.
A reducer structure including an input gear, a connecting gear, and a driven gear was designed. Combined with a heat exchanger and an oil pump system, the temperature rise and noise are reduced by circulating low-temperature oil for cooling and using lubricating oil.
It effectively reduced the temperature rise of the reducer, reduced noise, and improved the operating efficiency of the equipment.
Smart Images
Figure CN223483394U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a structure for an extruder reducer. Background Art
[0002] A speed reducer is an independent component consisting of gear drives, worm drives, or gear-worm 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, and its applications are extremely widespread in modern machinery.
[0003] In the plastic extrusion industry, extruders often use high-ratio reducers paired with 1500RPM / MIN asynchronous motors. The disadvantages of this type of extruder are high temperature, high vibration, high noise level, low efficiency, and high failure frequency. Utility Model Content
[0004] This utility model proposes a reducer structure for an extruder, including a reducer for use on the extruder body. The reducer is provided with an input gear, a connecting gear, and a driven gear. The connecting gear is provided with a first connecting tooth and a second connecting tooth. The diameter of the first connecting tooth is larger than that of the second connecting tooth. The first connecting tooth is connected to the input gear, and the second connecting tooth is connected to the driven gear. The diameter of the input gear is smaller than that of the second input tooth, and the diameter of the first connecting tooth is smaller than that of the driven gear.
[0005] In one or more embodiments, the input gear meshes with a first connecting tooth, and the second connecting tooth meshes with a driven gear.
[0006] In one or more embodiments, the first connecting tooth and the second connecting tooth are integral.
[0007] In one or more embodiments, the input gear, connecting gear, and driven gear are arranged in a triangular pattern.
[0008] In one or more embodiments, the input gear is provided with an input shaft, the driven gear is provided with an output shaft, the input shaft is located on one side of the reducer housing, and the output shaft is located on the opposite side of the reducer housing.
[0009] In one or more embodiments, the reducer housing is provided with an oil inlet, the oil inlet is connected to an oil pump, and a heat exchanger is provided between the oil pump and the oil inlet.
[0010] In one or more embodiments, the heat exchanger is provided with an oil inlet, an oil outlet, a water inlet, and a water outlet. The oil inlet is connected to an oil pump, the oil outlet is connected to the oil inlet of a speed reducer, the water inlet is connected to a water source, and the water outlet drains water outward.
[0011] In one or more embodiments, the bottom of the housing of the reducer is provided with an oil outlet, which is connected to the oil inlet of the oil pump.
[0012] In one or more embodiments, the oil outlet is provided with a T-junction, one end of which is an oil drain hole.
[0013] The beneficial effects of this utility model are as follows: By setting an input gear, a connecting gear, and a driven gear on the outer shell, power input and power output are realized. At the same time, a heat exchanger and an oil pump send low-temperature oil into the reducer and replace the high-temperature oil to reduce its temperature rise. In addition, adding lubricating oil to the reducer can effectively reduce noise. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the extruder reducer.
[0015] Figure 2 This is a schematic diagram of the internal structure of an extruder reducer.
[0016] Figure 3 This is a schematic diagram of another side of the extruder reducer structure. DETAILED DESCRIPTION
[0017] The following description, in conjunction with the accompanying drawings, further illustrates the proposed solution:
[0018] See appendix Figure 1-3 An extruder reducer structure includes a reducer for use on the extruder body. The reducer is provided with an input gear 2, a connecting gear 3, and a driven gear 7. The connecting gear 3 is provided with a first connecting tooth portion 31 and a second connecting tooth portion 32. The diameter of the first connecting tooth portion 31 is larger than that of the second connecting tooth portion 32. The first connecting tooth portion 31 is connected to the input gear 2, and the second connecting tooth portion 32 is connected to the driven gear 7. The diameter of the input gear 2 is smaller than that of the second input tooth portion 32, and the diameter of the first connecting tooth portion 31 is smaller than that of the driven gear 7.
[0019] Furthermore, the input gear 2 meshes with the first connecting tooth 31, and the second connecting tooth 32 meshes with the driven gear 7.
[0020] Furthermore, the first connecting tooth 31 and the second connecting tooth 32 are integral.
[0021] Furthermore, the input gear 2, the connecting gear 3, and the driven gear 7 are arranged in a triangular pattern.
[0022] Furthermore, the input gear 2 is provided with an input shaft 21, and the driven gear 7 is provided with an output shaft 71. The input shaft 21 is located on one side of the reducer housing 1, and the output shaft 71 is located on the opposite side of the reducer housing 1.
[0023] Furthermore, the reducer housing 1 is provided with an oil inlet 11, the oil inlet 11 is connected to an oil pump 4, and a heat exchanger 5 is provided between the oil pump 4 and the oil inlet 11.
[0024] Furthermore, the heat exchanger 5 is provided with an oil inlet 51, an oil outlet 52, a water inlet 53, and a water outlet 54. The oil inlet 51 is connected to the oil pump 4, the oil outlet 52 is connected to the oil inlet 11 of the reducer, the water inlet 53 is connected to a water source, and the water outlet 54 drains water outward.
[0025] Furthermore, the bottom of the housing 1 of the reducer is provided with an oil outlet, which is connected to the oil inlet of the oil pump 4.
[0026] Furthermore, the oil outlet is provided with a three-way valve 6, one end of which is an oil drain hole 62, and the other end of which is a circulating oil hole 61.
[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0030] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0031] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0032] The above preferred embodiments should be regarded as illustrative examples of the embodiments of the present application. Any technical deductions, substitutions, improvements, etc. that are similar to or based on the present application should be considered within the scope of protection of this patent.
Claims
1. A structure for an extruder reducer, characterized in that, The device includes a speed reducer for use on the body of an extruder. The speed reducer is provided with an input gear, a connecting gear, and a driven gear. The connecting gear is provided with a first connecting tooth and a second connecting tooth. The diameter of the first connecting tooth is larger than that of the second connecting tooth. The first connecting tooth is connected to the input gear, and the second connecting tooth is connected to the driven gear. The diameter of the input gear is smaller than that of the second input tooth, and the diameter of the first connecting tooth is smaller than that of the driven gear.
2. The extruder reducer structure according to claim 1, characterized in that, The input gear meshes with the first connecting tooth, and the second connecting tooth meshes with the driven gear.
3. The extruder reducer structure according to claim 2, characterized in that, The first connecting tooth and the second connecting tooth are integrated.
4. The extruder reducer structure according to claim 1, characterized in that, The input gear, connecting gear, and driven gear are arranged in a triangular pattern.
5. The extruder reducer structure according to claim 1, characterized in that, The input gear is provided with an input shaft, and the driven gear is provided with an output shaft. The input shaft is located on one side of the reducer housing, and the output shaft is located on the opposite side of the reducer housing.
6. The extruder reducer structure according to claim 1, characterized in that, The reducer housing is provided with an oil inlet, which is connected to an oil pump, and a heat exchanger is provided between the oil pump and the oil inlet.
7. The extruder reducer structure according to claim 6, characterized in that, The heat exchanger is provided with an oil inlet, an oil outlet, a water inlet, and a water outlet. The oil inlet is connected to an oil pump, the oil outlet is connected to the oil inlet of a speed reducer, the water inlet is connected to a water source, and the water outlet drains water outward.
8. The extruder reducer structure according to claim 1, characterized in that, The bottom of the reducer housing is provided with an oil outlet, which is connected to the oil inlet of the oil pump.
9. The extruder reducer structure according to claim 8, characterized in that, The oil outlet is provided with a T-junction, one end of which is an oil drain hole.