Flange shaft connecting structure of speed reducer

Abstract

The utility model relates to the technical field of flanged shafts, in particular to a reducer flanged shaft connecting structure which comprises a first flanged shaft, a second flanged shaft is arranged on the right portion of the first flanged shaft, and a connecting device is movably connected between the first flanged shaft and the second flanged shaft in a penetrating mode. The right end of the first flange shaft is movably connected with a plurality of bolts in a penetrating mode, the bolts are jointly movably connected with a second flange shaft in a penetrating mode, the outer surfaces of the bolts are all in threaded connection with nuts, and the nuts are all located on the right portion of the second flange shaft. According to the flanged shaft connecting structure of the speed reducer, the first flanged shaft, the second flanged shaft and the connecting piece can be rapidly connected, and stability and installation efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of flange shaft technology, and in particular to a flange shaft connection structure for a speed reducer. Background Technology

[0002] Planetary gearboxes are widely used industrial products that can reduce motor speed while increasing output torque. They can be used as components in industries such as lifting, excavation, transportation, and construction. Patent application number 202320576283.9 discloses a novel planetary gearbox flange shaft connection structure, including symmetrically arranged flange shaft bodies. A positioning structure for positioning and assembly is provided between the symmetrical flange shaft bodies. The positioning structure includes a positioning column, and a fixing component is integrally provided at the right end of the positioning column. In this patent, a rectangular limiting block on one side is used to connect and limit the flange shaft on one side, but the flange shaft on the other side lacks a limiting block. This affects installation efficiency and makes it easy for the shaft to loosen. Therefore, we introduce a gearbox flange shaft connection structure. Utility Model Content

[0003] The main objective of this invention is to provide a reducer flange shaft connection structure that can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A reducer flange shaft connection structure includes a first flange shaft, a second flange shaft located on the right side of the first flange shaft, a connecting device that is movably connected between the first flange shaft and the second flange shaft, a plurality of bolts that are movably connected to the right end of the first flange shaft, the plurality of bolts being movably connected to the second flange shaft, nuts being threaded onto the outer surface of the plurality of bolts, and the plurality of nuts being located on the right side of the second flange shaft.

[0006] Preferably, the connecting device includes a connector, and three arc-shaped protrusions are fixedly connected to the outer surface of the connector. The three arc-shaped protrusions are distributed in a ring at equal distances. Three sliding grooves are opened on the left and right sides of the outer surface of the connector. The inner walls of the six sliding grooves are all opened with second circular grooves. The six sliding grooves and the three arc-shaped protrusions are staggered. A clamping mechanism is installed and connected inside the connector.

[0007] Preferably, the clamping mechanism includes three first-order clamping blocks and three second-order clamping blocks. Each of the three first-order clamping blocks has a first-order inclined surface at its far-away end, and each of the three second-order clamping blocks has a second-order inclined surface at its far-away end. Each of the three second-order clamping blocks has a limiting part fixedly connected to its close-away end, and each of the six limiting parts has a spring fixedly connected to one end.

[0008] Preferably, the six springs are located in the six second circular grooves.

[0009] Preferably, the six limiting portions are slidably connected to the six sliding grooves respectively.

[0010] Preferably, a first circular groove is opened at the right end of the first flange shaft and the left end of the second flange shaft, and three arc-shaped limiting grooves and three locking grooves are opened on the inner wall of each of the two first circular grooves.

[0011] Preferably, the three arc-shaped protrusions are slidably connected to the three arc-shaped limiting grooves respectively.

[0012] Preferably, the three No. 1 locking blocks are respectively inserted into the three locking slots of the No. 1 flange shaft, and the three No. 2 locking blocks are respectively inserted into the three locking slots of the No. 2 flange shaft.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, a first circular groove is opened in the first flange shaft and the second flange shaft, and an arc-shaped limiting groove and a retaining groove are opened on the inner wall of the first circular groove. After the left end of the connector is inserted into the first flange shaft, the three first retaining blocks in the connector are squeezed into the connector by the first flange shaft. When the position of the first retaining block reaches the retaining groove in the first flange shaft, the first retaining block extends into the retaining groove under the elastic action of the spring, completing the quick connection between the connector and the first flange shaft. Then, the right end of the connector is inserted into the second flange shaft in the same way. The three second retaining blocks on the right side of the connector extend into the retaining groove on the inner wall of the second flange shaft under the elastic action of the spring. Thus, the first flange shaft, the second flange shaft and the connector can be quickly connected, improving stability and installation efficiency.

[0015] 2. In this utility model, since the end of the first locking block that contacts the first flange shaft is provided with a first inclined surface, and the end of the second locking block that contacts the second flange shaft is provided with a second inclined surface, under the action of the second inclined surface and the first inclined surface, the first locking block and the second locking block are convenient to retract into the connecting piece when they contact the first flange shaft and the second flange shaft, thus improving the ease of installation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a reducer flange shaft connection structure according to the present invention;

[0017] Figure 2 This is a schematic diagram of the overall structure of the No. 1 flange shaft of the reducer flange shaft connection structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of the connecting device for a reducer flange shaft connection structure according to this utility model;

[0019] Figure 4 This is a schematic diagram of the overall structure of the clamping mechanism of the reducer flange shaft connection structure of this utility model.

[0020] In the diagram: 1. No. 1 flange shaft; 2. Bolt; 3. Connecting device; 4. Nut; 5. No. 2 flange shaft; 11. No. 1 circular groove; 12. Slot; 13. Arc-shaped limiting groove; 31. Connecting piece; 32. Arc-shaped protrusion; 33. Clamping mechanism; 34. No. 2 circular groove; 35. Slide; 331. No. 1 clamping block; 332. No. 2 clamping block; 333. No. 1 inclined plane; 334. No. 2 inclined plane; 335. Limiting part; 336. Spring. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Please see Figure 1-4 This utility model provides a technical solution:

[0025] A reducer flange shaft connection structure includes a first flange shaft 1, a second flange shaft 5 located on the right side of the first flange shaft 1, a connecting device 3 that is movably connected between the first flange shaft 1 and the second flange shaft 5, a plurality of bolts 2 that are movably connected to the right end of the first flange shaft 1, the plurality of bolts 2 being movably connected to the second flange shaft 5, nuts 4 being threaded onto the outer surface of the plurality of bolts 2, and the plurality of nuts 4 being located on the right side of the second flange shaft 5.

[0026] In this embodiment, the connecting device 3 includes a connector 31. Three arc-shaped protrusions 32 are fixedly connected to the outer surface of the connector 31. The three arc-shaped protrusions 32 are distributed in a ring at equal intervals. Three sliding grooves 35 are formed on the left and right sides of the outer surface of the connector 31. A second circular groove 34 is formed on the inner wall of each of the six sliding grooves 35. The six sliding grooves 35 and the three arc-shaped protrusions 32 are staggered. A clamping mechanism 33 is installed inside the connector 31. The clamping mechanism 33 includes three first-order clamping blocks 331 and three second-order clamping blocks 332. A first-order inclined surface 333 is provided at the ends of the three first-order clamping blocks 331 that are far apart from each other. A second-order inclined surface 334 is provided at the ends of the three second-order clamping blocks 332 that are far apart from each other. The ends of the three second-order clamping blocks 332 that are close to each other are fixedly connected. The fixed connection has a limiting part 335. The three first-position locking blocks 331 are all fixedly connected to the limiting part 335 at their close ends. The six limiting parts 335 are all fixedly connected to a spring 336 at one end. The six springs 336 are respectively located in the six second-position circular grooves 34. The six limiting parts 335 are slidably connected to the six sliding grooves 35. The right end of the first flange shaft 1 and the left end of the second flange shaft 5 are both opened with a first-position circular groove 11. The inner walls of the two first-position circular grooves 11 are each opened with three arc-shaped limiting grooves 13 and three locking grooves 12. The three arc-shaped protrusions 32 are slidably connected to the three arc-shaped limiting grooves 13. The three first-position locking blocks 331 are respectively inserted into the three locking grooves 12 of the first flange shaft 1, and the three second-position locking blocks 332 are respectively inserted into the three locking grooves 12 of the second flange shaft 5.

[0027] With the above scheme: the left end of connector 31 is inserted into flange shaft 1, the right end of connector 31 is inserted into flange shaft 5, the first locking block 331 limits the connection between connector 31 and flange shaft 1, and the second locking block 332 limits the connection between connector 31 and flange shaft 5. Thus, the three can be connected together simply by insertion, which improves the efficiency and convenience of connection.

[0028] It should be noted that this utility model describes a reducer flange shaft connection structure, in which the left end of the connector 31 is slowly inserted into the first flange shaft 1. During the insertion process, the three first-position locking blocks 331 inside the connector 31 begin to function. These first-position locking blocks 331 are initially in a naturally extended position. When they contact the inner wall of the first flange shaft 1, they are gradually squeezed into the pre-set receiving space inside the connector 31 due to the squeezing action of the inner wall of the first flange shaft 1. This process requires the operator to apply a certain insertion force to ensure that the connector 31 can smoothly enter the first flange shaft 1. As the connector 31 continues to be inserted, when the position of the first-position locking blocks 331 reaches the locking groove 12 at a specific position on the inner wall of the first flange shaft 1, the situation changes. At this time, the spring that was originally in a compressed state... Spring 336 begins to exert its elastic effect. Having stored elastic potential energy during its previous compression, spring 336 releases this energy, generating an outward pushing force that acts on the first locking block 331. Under this force, the first locking block 331 rapidly extends outward along the pre-designed track inside the connector 31, precisely entering the slot 12 inside the first flange shaft 1. Once the first locking block 331 is fully engaged in the slot 12, a reliable mechanical lock is formed between the connector 31 and the first flange shaft 1, completing the rapid connection between them. After completing the connection between the connector 31 and the first flange shaft 1, the next step is to connect the connector 31 to the second flange shaft 5. In the connection operation, the right end of the connector 31 is slowly inserted into the second flange shaft 5 in the same manner. At this time, the three second locking blocks 332 on the right side of the connector 31 begin to play a similar role. The spring 336 exerts its elasticity, pushing the second locking blocks 332 outward and into the slots 12 on the inner wall of the second flange shaft 5, thereby completing the quick connection between the connector 31 and the second flange shaft 5. Since the first locking block 331 and the second locking block 332 are respectively locked into the slots 12 of the first flange shaft 1 and the second flange shaft 5, a reliable mechanical lock is formed, which can effectively prevent relative displacement between the flange shaft and the connector, ensuring the stability of the entire connection structure. It can withstand greater external forces and torques. This connection method is simple to operate, requiring no complicated tools or cumbersome steps, greatly shortening assembly time and improving production efficiency. The end of the first locking block 331 that contacts the first flange shaft 1 is provided with a first inclined surface 333, and the end of the second locking block 332 that contacts the second flange shaft 5 is provided with a second inclined surface 334. During installation, when the first locking block 331 and the second locking block 332 contact the first flange shaft 1 and the second flange shaft 5 respectively, due to the presence of the inclined surfaces, the locking blocks can be squeezed and compressed more smoothly into the connecting piece 31 when they contact the inner wall of the flange shaft, reducing the resistance during the insertion process and further improving the convenience of installation.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A reducer flange shaft connecting structure comprising a No. 1 flange shaft (1), characterized in that: The right part of the first flange shaft (1) is provided with the second flange shaft (5), the first flange shaft (1) and the second flange shaft (5) are movably connected by the connecting device (3), the right end of the first flange shaft (1) is movably connected with the plurality of bolts (2), the plurality of bolts (2) are movably connected with the second flange shaft (5), the outer surfaces of the plurality of bolts (2) are threadedly connected with the plurality of nuts (4), and the plurality of nuts (4) are located at the right part of the second flange shaft (5). The connecting device (3) comprises a connecting piece (31), the outer surface of the connecting piece (31) is fixedly connected with three arc-shaped lugs (32), the three arc-shaped lugs (32) are annularly and equidistantly distributed, the left part and the right part of the outer surface of the connecting piece (31) are provided with three sliding grooves (35), the inner walls of the six sliding grooves (35) are provided with second circular grooves (34), the six sliding grooves (35) and the three arc-shaped lugs (32) are staggered, and the connecting piece (31) is internally connected with the clamping mechanism (33).

2. The reducer flange shaft connecting structure according to claim 1, characterized in that: The clamping mechanism (33) comprises three first clamping blocks (331) and three second clamping blocks (332), the ends of the three first clamping blocks (331) away from each other are provided with first inclined surfaces (333), the ends of the three second clamping blocks (332) away from each other are provided with second inclined surfaces (334), the ends of the three second clamping blocks (332) close to each other are fixedly connected with limiting portions (335), the ends of the three first clamping blocks (331) close to each other are fixedly connected with limiting portions (335), and the ends of the six limiting portions (335) are fixedly connected with springs (336).

3. The reducer flange shaft connecting structure according to claim 2, characterized in that: The six springs (336) are located in the six second circular grooves (34) respectively.

4. The speed reducer flange shaft connecting structure according to claim 2, characterized in that: The six limiting portions (335) are slidably connected with the six sliding grooves (35) respectively.

5. The speed reducer flange shaft connecting structure according to claim 1, characterized in that: The right end of the first flange shaft (1) and the left end of the second flange shaft (5) are provided with first circular grooves (11), the inner walls of the two first circular grooves (11) are provided with three arc-shaped limiting grooves (13) and three clamping grooves (12).

6. The speed reducer flange shaft connecting structure according to claim 1, characterized in that: The three arc-shaped lugs (32) are slidably connected with the three arc-shaped limiting grooves (13) respectively.

7. The speed reducer flange shaft connecting structure according to claim 2, characterized by: The three first clamping blocks (331) are movably arranged in the three clamping grooves (12) of the first flange shaft (1), and the three second clamping blocks (332) are movably arranged in the three clamping grooves (12) of the second flange shaft (5).

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