Cycloidal pin gear speed reducer with high transmission performance

Abstract

The cycloidal-pin gear speed reducer with the high transmission performance comprises a base, a supporting seat is fixedly connected to one side of the top of the base, a front cover is fixedly connected to the top of the supporting seat, a transmission shell is arranged on one side of the front cover, and a rear cover is arranged on the side, away from the front cover, of the transmission shell. Through the lubricating groove, the balls, the hollow shell, the oil filling pipe, the oil storage bin, the detection shell and the thermocouple, the transmission shaft rotates in the inner cavity of the shaft sleeve, the surface of the transmission shaft makes contact with the balls, heat can be generated due to friction in the rotating process, and the thermocouple monitors that the temperature of the inner cavity of the shaft sleeve becomes high due to the heat generated by friction between the transmission shaft and the balls; the control box opens the electromagnetic valve in the inner cavity of the oil injection pipe, and lubricating oil in the inner cavity of the oil storage bin flows into the lubricating groove through the oil injection pipe and then flows to the surfaces of the balls and the transmission shaft, so that the friction force between the transmission shaft and the balls is reduced, and the transmission efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of cycloidal pinwheel reducers, specifically a cycloidal pinwheel reducer with high transmission performance. Background Technology

[0002] Cycloidal pinwheel reducers are mechanical devices commonly used in industrial transmission systems. They are mainly used to reduce the speed of electric motors or engines, thereby providing higher output torque. Their working principle is based on the meshing of cycloidal gears. Through a unique transmission method, they can provide a large reduction ratio in a small size.

[0003] For example, China Utility Model Patent No. 201920409424.1 provides a "high-stability cycloidal pinwheel reducer". This patent includes a motor and a reducer housing. The reducer housing has a coaxial input shaft and an output shaft inside. The reducer housing includes an input part, a reduction part and an output part connected in sequence. The cycloidal wheel is driven to rotate through an eccentric bushing, so that the cycloidal wheel meshes with the pin gear and rotates. Thus, the two cycloidal wheels drive the output disc to rotate simultaneously through the shaft pin, and output the rotation from the output shaft. This increases the operating stability of the reducer and improves the output quality of the reducer.

[0004] While the aforementioned document addresses the issue that current geared motors often use deep groove ball bearings to rotate and support the lead screw, resulting in a support structure that can only bear radial rotational loads and cannot withstand large axial loads, it still suffers from unsatisfactory transmission performance. Cycloidal pinwheel reducers are compact speed reducers that utilize planetary transmission principles. Due to their large transmission contact area, they offer advantages in stability and reliability compared to gear reducers. However, they experience increased wear, vibration and increased noise over prolonged use, and require frequent lubrication. Therefore, this document introduces a cycloidal pinwheel reducer with high transmission performance. Utility Model Content

[0005] The purpose of this invention is to provide a cycloidal pinwheel reducer with high transmission performance, which has the advantage of high transmission performance.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cycloidal pinwheel reducer with high transmission performance, comprising a base, a support seat fixedly connected to one side of the top of the base, a front cover fixedly connected to the top of the support seat, a transmission housing provided on one side of the front cover, a rear cover provided on the side of the transmission housing away from the front cover, a bushing fixedly connected to the side of the front cover away from the transmission housing, a transmission shaft provided on one side of the transmission housing and within the inner cavity of the bushing, lubrication grooves provided at the top and bottom of the inner cavity of the bushing, ball bearings movably connected to the inner cavity of the lubrication grooves, a hollow shell fixedly connected to the top of the bushing, an oil injection pipe connected to the top of the hollow shell, an oil reservoir fixedly connected to the top of the front cover, an end of the oil injection pipe away from the hollow shell connected to the side of the oil reservoir, a detection shell fixedly connected to one side of the bushing, a thermocouple provided at the top of the inner cavity of the detection shell, and a control box fixedly connected to one side of the support seat.

[0007] As a preferred embodiment, mounting plates are fixedly connected to both sides of the base, and mounting holes are provided on the surface of the mounting plates.

[0008] As a preferred embodiment, a fixing block is fixedly connected to the top of one side of the front cover, and a fixing ring is fixedly connected to the top of the fixing block.

[0009] As a preferred embodiment, a bolt is fixedly connected to one side of the transmission housing, the bolt is connected through a through hole on the surface of the rear cover, and a nut is threaded onto one side of the bolt surface.

[0010] As a preferred embodiment, an oil filling port is provided on one side of the top of the oil storage tank, and a threaded sealing plug is provided inside the oil filling port.

[0011] As a preferred embodiment, a drain pipe is provided at the bottom of the bushing, and an oil plug is provided at the bottom of the drain pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention utilizes a lubrication groove, ball bearings, a hollow shell, an oil injection pipe, an oil reservoir, a detection shell, and a thermocouple. The drive shaft rotates within the inner cavity of the bushing, and its surface contacts the ball bearings. During rotation, heat is generated due to friction. The thermocouple detects that the temperature inside the bushing has increased due to the heat generated by the friction between the drive shaft and the ball bearings, and transmits an abnormal temperature signal to the control box. The control box opens the solenoid valve inside the oil injection pipe, allowing lubricating oil from the oil reservoir to flow into the lubrication groove through the oil injection pipe, and then onto the surfaces of the ball bearings and the drive shaft. This reduces the friction between the drive shaft and the ball bearings, thereby improving transmission efficiency.

[0014] This utility model consists of a front cover, a transmission housing, and a rear cover. The transmission gear assembly is located in the transmission housing. The front cover and the rear cover are located on the front and back of the transmission housing, respectively, and are easy to disassemble. After disassembly, the transmission gear inside the transmission housing can be inspected and maintained. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 3 This utility model Figure 2 A magnified view of a portion of point A in the middle.

[0018] In the diagram: 1. Base; 2. Support base; 3. Front cover; 4. Transmission housing; 5. Rear cover; 6. Bushing; 7. Transmission shaft; 8. Lubrication groove; 9. Ball bearing; 10. Hollow shell; 11. Oil injection pipe; 12. Oil reservoir; 13. Detection shell; 14. Thermocouple; 15. Control box; 16. Drain pipe. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. Example

[0021] Please see Figures 1-3As shown, this utility model provides a cycloidal pinwheel reducer with high transmission performance, including a base 1, a support seat 2 fixedly connected to one side of the top of the base 1, a front cover 3 fixedly connected to the top of the support seat 2, a transmission housing 4 provided on one side of the front cover 3, a rear cover 5 provided on the side of the transmission housing 4 away from the front cover 3, a bushing 6 fixedly connected to the side of the front cover 3 away from the transmission housing 4, a transmission shaft 7 provided on one side of the transmission housing 4 and inside the bushing 6, lubrication grooves 8 are provided at the top and bottom of the bushing 6, ball bearings 9 are movably connected to the inner cavity of the lubrication grooves 8, a hollow shell 10 is fixedly connected to the top of the bushing 6, an oil injection pipe 11 is connected to the top of the hollow shell 10, and an oil reservoir 12 is fixedly connected to the top of the front cover 3. One end of the oil injection pipe 11 away from the hollow shell 10 is connected to one side of the oil storage tank 12. A detection shell 13 is fixedly connected to one side of the bushing 6. A thermocouple 14 is installed on the top of the inner cavity of the detection shell 13. A control box 15 is fixedly connected to one side of the support base 2. The drive shaft 7 rotates in the inner cavity of the bushing 6, and its surface contacts the ball 9. During the rotation, heat is generated due to friction. The thermocouple 14 detects that the temperature inside the bushing 6 has increased due to the heat generated by the friction between the drive shaft 7 and the ball 9. It will transmit an abnormal temperature signal to the control box 15. The control box 15 opens the solenoid valve inside the oil injection pipe 11. The lubricating oil in the inner cavity of the oil storage tank 12 flows into the lubrication groove 8 through the oil injection pipe 11, and then flows to the surface of the ball 9 and the drive shaft 7.

[0022] This technical solution incorporates a lubrication groove 8, ball bearings 9, hollow shell 10, oil injection pipe 11, oil reservoir 12, detection shell 13, and thermocouple 14. By setting up an automatic lubrication mechanism, the surface of the reducer drive shaft 7 is lubricated with oil, thereby reducing the friction between the surface of the drive shaft 7 and the inner surface of the bushing 6, and improving the transmission performance of the drive shaft 7. Example

[0023] Based on Embodiment 1, this utility model is as follows: Figures 1-3 As shown, mounting plates are fixedly connected to both sides of the base 1. Mounting holes are opened on the surface of the mounting plates. A fixing block is fixedly connected to the top of one side of the front cover 3. A fixing ring is fixedly connected to the top of the fixing block. A bolt is fixedly connected to one side of the transmission housing 4. The bolt is connected to the through hole on the surface of the rear cover 5. A nut is threaded on one side of the bolt surface.

[0024] The above technical solution is mainly adopted to achieve the purpose of installing and fixing the reducer, facilitating transportation and easy disassembly of the rear cover 5. The mounting bolts are inserted through the mounting holes on the surface of the mounting plate and screwed into the mounting surface to install and fix the reducer. The main function of the fixing ring is to provide a convenient hanging point for hoisting during the installation, transportation or replacement of the reducer. Unscrew the nuts and move the rear cover 5 until the surface of the bolts is disengaged from the through holes on the surface of the rear cover 5 for disassembly. Example

[0025] Based on Embodiment 2, this utility model is as follows: Figures 1-3 As shown, an oil filling port is provided on one side of the top of the oil storage tank 12, and a threaded sealing plug is provided in the inner cavity of the oil filling port. A drain pipe 16 is provided at the bottom of the bushing 6, and an oil plug is provided at the bottom of the drain pipe 16.

[0026] The above technical solution is mainly adopted to facilitate the addition and removal of sludge. By unscrewing the threaded sealing plug, lubricating oil can be added into the inner cavity of the oil storage tank 12 through the oil filling port. By removing the oil plug at the bottom of the drain pipe 16, the sludge in the lubrication groove 8 will flow out through the drain pipe 16.

[0027] The working principle of this utility model is as follows: The reducer is installed in a stable position and can withstand the weight and workload of the equipment. According to the requirements of the transmission system, the input shaft of a power source such as a motor is connected to the input end of the reducer. During startup, the reducer accelerates gradually to avoid sudden load startup impacting the equipment. The transmission shaft 7 rotates within the bushing 6, and its surface contacts the balls 9. During rotation, friction generates heat. Thermocouple 14 detects that the temperature inside the bushing 6 has increased due to the heat generated by the friction between the transmission shaft 7 and the balls 9, and transmits an abnormal temperature signal to the control box 15. The control box 15 opens the solenoid valve inside the oil injection pipe 11, allowing lubricating oil from the oil reservoir 12 to flow into the lubrication groove 8 through the oil injection pipe 11, and then onto the surfaces of the balls 9 and the transmission shaft 7, thereby reducing the friction between the transmission shaft 7 and the balls 9.

[0028] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0029] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A cycloidal pinwheel reducer with high transmission performance, comprising a base (1), characterized in that: A support base (2) is fixedly connected to one side of the top of the base (1). A front cover (3) is fixedly connected to the top of the support base (2). A transmission housing (4) is provided on one side of the front cover (3). A rear cover (5) is provided on the side of the transmission housing (4) away from the front cover (3). A bushing (6) is fixedly connected to the side of the front cover (3) away from the transmission housing (4). A transmission shaft (7) is provided on one side of the transmission housing (4) and inside the bushing (6). Lubrication grooves (8) are provided at the top and bottom of the inner cavity of the bushing (6). The inner cavity of the bushing (6) is connected to a ball bearing (9), the top of the bushing (6) is fixedly connected to a hollow shell (10), the top of the hollow shell (10) is connected to an oil injection pipe (11), the top of the front cover (3) is fixedly connected to an oil storage tank (12), the end of the oil injection pipe (11) away from the hollow shell (10) is connected to one side of the oil storage tank (12), one side of the bushing (6) is fixedly connected to a detection shell (13), the top of the inner cavity of the detection shell (13) is provided with a thermocouple (14), and one side of the support base (2) is fixedly connected to a control box (15).

2. The cycloidal pinwheel reducer with high transmission performance according to claim 1, characterized in that: The base (1) has mounting plates fixedly connected to both sides, and mounting holes are provided on the surface of the mounting plates.

3. A cycloidal pinwheel reducer with high transmission performance according to claim 1, characterized in that: A fixing block is fixedly connected to the top of one side of the front cover (3), and a fixing ring is fixedly connected to the top of the fixing block.

4. A cycloidal pinwheel reducer with high transmission performance according to claim 1, characterized in that: A bolt is fixedly connected to one side of the transmission housing (4), and the bolt is connected through the through hole on the surface of the rear cover (5). A nut is threadedly connected to one side of the bolt surface.

5. A cycloidal pinwheel reducer with high transmission performance according to claim 1, characterized in that: An oil filling port is provided on one side of the top of the oil storage tank (12), and a threaded sealing plug is provided in the inner cavity of the oil filling port.

6. A cycloidal pinwheel reducer with high transmission performance according to claim 1, characterized in that: The bottom of the bushing (6) is provided with a drain pipe (16), and the bottom of the drain pipe (16) is provided with an oil plug.

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