Telescopic transmission shaft connecting device

Abstract

The utility model relates to the technical field of mechanical part connecting equipment, and discloses a telescopic transmission shaft connecting device which comprises a shell, a connecting groove is formed in the center of the shell, a first limiting ring and a second limiting ring are fixedly installed in the shell, the first limiting ring is located in the second limiting ring, four racks are arranged in the shell, and the connecting groove is formed in the middle of the shell. One end of each rack penetrates through the first limiting ring and the second limiting ring, extends into the connecting groove and is fixedly provided with a fixing block. The driving assembly is located on one side of the shell and used for driving the four racks to be close to or far away from one another, it is ensured that transmission shafts with different diameters can be connected, the device does not need to be replaced, connection of the transmission shafts can be rapidly achieved, meanwhile, a rubber pad can achieve the buffering effect, rigid collision is avoided, and damage to parts is avoided; and meanwhile, the friction force can be increased through the rubber pad, so that the two connecting shafts are connected more stably.

Description

Technical Field

[0001] This utility model relates to the technical field of mechanical parts connection equipment, specifically a telescopic transmission shaft connection device. Background Technology

[0002] Drive shafts are key components in mechanical transmission systems used to transmit power and torque. Their main function is to transmit the rotational motion of a power source (such as an engine or motor) to an actuator (such as a wheel or gearbox), enabling long-distance energy transmission. They are widely used in automobiles, construction machinery, agricultural machinery, and industrial equipment. In the field of mechanical transmission, as a key component for transmitting power, the performance of the drive shaft's connecting device directly affects the stability and reliability of the system.

[0003] Traditional connecting devices typically only accommodate drive shafts of a specific diameter. When connecting shafts of different specifications, the entire connecting assembly must be replaced, resulting in cumbersome operation, high costs, and difficulty in meeting the diverse needs of industrial scenarios. Therefore, we propose a retractable drive shaft connecting device. Utility Model Content

[0004] The purpose of this invention is to provide a retractable drive shaft connection device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a retractable drive shaft connecting device, comprising:

[0006] The housing has a connecting groove at its center. Limiting ring 1 and limiting ring 2 are fixedly installed inside the housing, with limiting ring 1 located inside limiting ring 2. The housing has four racks, one end of each rack passing through limiting ring 1 and limiting ring 2 and extending into the connecting groove, where a fixing block is fixedly installed.

[0007] A drive assembly, located on one side of the housing, is used to drive four racks to move closer to or further away from each other.

[0008] Preferably, the driving component includes:

[0009] A rotating ring is rotatably installed inside a limiting ring two. Several gear teeth one and several gear teeth two are fixedly installed on the inner and outer side walls of the rotating ring, respectively. Gear teeth one are meshed and installed inside the housing and on one side of gear teeth two. A motor is fixedly installed on one side of the housing. The output end of the motor passes through one side of the housing and is coaxially connected to the gears. Four gear teeth two are rotatably installed inside the housing and on one side of each of the four racks. The four gear teeth two are respectively meshed and connected to the corresponding racks and several gear teeth one.

[0010] Preferably, the output shaft of the motor is rotatably connected to the housing, and the rotating ring, several gear teeth one, and several gear teeth two are integrally formed.

[0011] Preferably, all four fixing blocks are slidably connected to the connecting groove, and the four racks are arranged in a ring with equal spacing.

[0012] Preferably, rubber pads are fixedly installed on one side of each of the four fixing blocks.

[0013] Preferably, a protective shell is fixedly installed on one side of the housing, and the motor is located inside the protective shell.

[0014] Preferably, the shell, limiting ring one, and limiting ring two are integrally formed.

[0015] Compared with the prior art, the present invention provides a retractable drive shaft connection device, which has the following advantages:

[0016] This retractable drive shaft connection device, through the cooperation of the rack, fixing block, rubber pad and drive component, ensures that drive shafts of different diameters can be connected without changing the device, and the connection of drive shafts can be achieved quickly. At the same time, the rubber pad can play a buffer role to avoid rigid collision damage to the parts, and the rubber pad can also increase the friction to make the connection between the two connecting shafts more stable. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of this utility model. Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the structure of this utility model. Figure 3 ;

[0021] Figure 4 This is a detailed internal structural diagram of the shell in this utility model;

[0022] Figure 5 This is a cross-sectional structural diagram of the shell in this utility model;

[0023] Figure 6This utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0024] In the diagram: 1. Housing; 2. Connecting groove; 3. Limiting ring one; 4. Limiting ring two; 5. Rack; 6. Fixing block; 7. Rubber pad; 8. Rotating ring; 9. Gear one; 10. Motor; 11. Protective shell; 12. Gear tooth one; 13. Gear tooth two; 14. Gear two. Detailed Implementation

[0025] 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.

[0026] 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0027] It should be noted that, in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0028] This utility model provides the following technical solution:

[0029] Please refer to Figure 1-6A retractable drive shaft connection device, comprising:

[0030] The housing 1 has a connecting groove 2 at its center. Limiting ring 1 3 and limiting ring 2 4 are fixedly installed inside the housing 1, with limiting ring 1 3 located inside limiting ring 2 4. The housing 1 has four racks 5, one end of each rack 5 passing through limiting ring 1 3 and limiting ring 2 4 and extending into the connecting groove 2, where a fixing block 6 is fixedly installed.

[0031] The drive assembly is located on one side of the housing 1 and is used to drive the four racks 5 to move closer or further apart from each other.

[0032] When it is necessary to connect the drive shafts, the two connecting shafts are placed into the connecting groove 2. Then, the drive assembly drives the four racks 5 to move closer to each other. The four racks 5 that move closer to each other drive the corresponding fixing blocks 6 to move closer to each other until the fixing blocks 6 contact the two drive shafts, thereby connecting the two drive shafts together. This ensures that drive shafts of different diameters can be connected without changing the device, and the connection of the drive shafts can be achieved quickly.

[0033] In this embodiment, the driving component includes:

[0034] A rotating ring 8 is rotatably installed inside a limiting ring 4. Several gear teeth 12 and several gear teeth 13 are fixedly installed on the inner and outer walls of the rotating ring 8, respectively. A gear 9 is meshed inside the housing 1 and located on one side of the gear teeth 13. A motor 10 is fixedly installed on one side of the housing 1. The output end of the motor 10 passes through one side of the housing 1 and is coaxially connected to the gear 9. Four gears 14 are rotatably installed inside the housing 1 and located on one side of each of the four racks 5. The four gears 14 mesh with the corresponding racks 5 and several gear teeth 12, respectively.

[0035] When the motor 10 is powered on and started, the output shaft of the motor 10 rotates, driving gear 9 to rotate within the protective shell 11. Under the action of meshing, gear 9 rotates, driving several gear teeth 13 to rotate. The rotation of several gear teeth 13 drives the rotating ring 8 to rotate within the limiting ring 4. The rotating ring 8 drives several gear teeth 12 to rotate. Under the action of meshing, the rotating gear teeth 12 drive four gear teeth 14 to rotate within the shell 1. Under the action of meshing, the rotation of the four gear teeth 14 drives the corresponding rack 5 to move, converting the rotational motion of the gear teeth 14 into the linear motion of the rack 5, thereby bringing the four racks 5 closer to each other. The four racks 5 that are close to each other respectively drive the corresponding fixed blocks 6 to move closer to each other.

[0036] In this embodiment, the output shaft of the motor 10 is rotatably connected to the housing 1, and the rotating ring 8, several gear teeth 12 and several gear teeth 13 are integrally formed.

[0037] This ensures that the motor 10 can operate normally on the housing 1, and ensures the stability of the rotating ring 8 and the structure of several gear teeth 12 and several gear teeth 13.

[0038] In this embodiment, all four fixing blocks 6 are slidably connected to the connecting groove 2, and the four racks 5 are arranged in a ring with equal spacing.

[0039] In this design, all four fixed blocks 6 can slide within the connecting groove 2. The annular and equally spaced distribution of the four racks 5 and their connected fixed blocks 6 creates a symmetrical radial clamping force on the transmission shaft, ensuring that the transmission shaft is always in the center position of the connecting groove 2. This avoids the transmission shaft offset caused by eccentricity and ensures the coaxiality and stability of the transmission system.

[0040] In this embodiment, rubber pads 7 are fixedly installed on one side of each of the four fixing blocks 6.

[0041] Among them, the rubber pad 7 can play a buffering role to avoid damage to the parts by rigid collision. At the same time, the rubber pad 7 can also increase the friction, making the connection between the two connecting shafts more stable.

[0042] In this embodiment, a protective shell 11 is fixedly installed on one side of the housing 1, and the motor 10 is located inside the protective shell 11.

[0043] The protective shell 11 can protect the motor 10.

[0044] In this embodiment, the shell 1, the limiting ring 3, and the limiting ring 4 are integrally formed.

[0045] This includes ensuring the stability of the structure of shell 1, limiting ring 1 3, and limiting ring 2 4.

[0046] When connecting the drive shafts, place the two connecting shafts into the connecting slot 2. Then, connect and start the motor 10. The output shaft of the motor 10 rotates, driving gear 9 to rotate within the protective housing 11. Under meshing action, gear 9 rotates, driving several gear teeth 13 to rotate. The rotation of gear teeth 13 drives the rotating ring 8 to rotate within the limiting ring 4. The rotating ring 8 drives several gear teeth 12 to rotate. Under meshing action, the rotating gear teeth 12 drive four gear teeth 14 to rotate within the housing 1. Under meshing action, the four gear teeth 14... 4. Rotation drives the corresponding rack 5 to move, converting the rotational motion of gear 14 into the linear motion of rack 5, thereby bringing the four racks 5 closer together. The four racks 5 that are close together drive the corresponding fixing blocks 6 to move closer together until the fixing blocks 6 contact the two drive shafts, thereby connecting the two drive shafts together. This ensures that drive shafts of different diameters can be connected without changing the device, and the connection of drive shafts can be achieved quickly. At the same time, the rubber pad 7 can play a buffering role to avoid rigid collision damage to the parts. The rubber pad 7 can also increase the friction, making the connection between the two connecting shafts more stable.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A retractable drive shaft connecting device, characterized in that, include: The housing (1) has a connecting groove (2) at its center. A limiting ring 1 (3) and a limiting ring 2 (4) are fixedly installed inside the housing (1), and the limiting ring 1 (3) is located inside the limiting ring 2 (4). The housing (1) has four racks (5), one end of each of the four racks (5) passes through the limiting ring 1 (3) and the limiting ring 2 (4) and extends into the connecting groove (2) where a fixing block (6) is fixedly installed. A drive assembly located on one side of the housing (1) is used to drive four racks (5) to move closer to or further away from each other.

2. The retractable drive shaft connecting device according to claim 1, characterized in that: The driving component includes: A rotating ring (8) is rotatably installed inside a limiting ring (4). Several gear teeth (12) and several gear teeth (13) are fixedly installed on the inner and outer walls of the rotating ring (8). Gear teeth (9) are meshed inside the housing (1) and located on one side of gear teeth (13). A motor (10) is fixedly installed on one side of the housing (1). The output end of the motor (10) passes through one side of the housing (1) and is coaxially connected to gear teeth (9). Four gear teeth (14) are rotatably installed inside the housing (1) and located on one side of each of the four racks (5). The four gear teeth (14) mesh with the corresponding racks (5) and several gear teeth (12).

3. The retractable drive shaft connecting device according to claim 2, characterized in that: The output shaft of the motor (10) is rotatably connected to the housing (1), and the rotating ring (8), several gear teeth one (12) and several gear teeth two (13) are integrally formed.

4. The retractable drive shaft connecting device according to claim 1, characterized in that: All four fixing blocks (6) are slidably connected to the connecting groove (2), and the four racks (5) are arranged in a ring with equal spacing.

5. The retractable drive shaft connecting device according to claim 1, characterized in that: Rubber pads (7) are fixedly installed on one side of each of the four fixing blocks (6).

6. The retractable drive shaft connecting device according to claim 2, characterized in that: A protective shell (11) is fixedly installed on one side of the housing (1), and the motor (10) is located inside the protective shell (11).

7. The retractable drive shaft connecting device according to claim 1, characterized in that: The shell (1), limiting ring one (3) and limiting ring two (4) are integrally formed structures.

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