A built-in gear box clutch device

Abstract

This utility model discloses a built-in gearbox clutch device, including a housing, a gear shaft, a transmission gear, a lead screw, and a drive shaft sleeve. The gear shaft is rotatably mounted on the housing, and has a rotating part coaxially arranged on its exterior. An external spline is formed on the exterior of the rotating part. The transmission gear is slidably fitted onto the exterior of the gear shaft, and its outer wall has a coaxially arranged abutment groove. An internal spline matching the external spline is formed on the inner wall of the transmission gear. The lead screw is rotatably mounted on the housing. This utility model integrates all components highly within the housing, eliminating the need for additional complex external transmission mechanisms, avoiding significant external space occupation, significantly optimizing the device's spatial layout, and effectively solving the problem of large space occupation in traditional clutch devices.

Description

Technical Field

[0001] This utility model relates to the technical field of gearboxes, and more particularly to a built-in gearbox clutch device. Background Technology

[0002] In the field of industrial transmission, the performance of the transmission system plays a crucial role in the overall operating efficiency, accuracy, and stability of equipment. With the continuous improvement of industrial automation, the requirements for transmission devices are becoming increasingly stringent.

[0003] Currently, traditional transmission devices have many shortcomings when facing frequent clutch and engagement conditions. For example, the transmission devices are often not compact in structure, occupy a large space, and are not conducive to the miniaturization and integration design of equipment. In addition, they are prone to excessive wear during frequent clutch and engagement, which shortens the service life of equipment and increases maintenance costs. Utility Model Content

[0004] In view of the above-mentioned problems of existing transmission devices, the present invention aims to provide a built-in gearbox clutch device.

[0005] The specific technical solution is as follows:

[0006] A built-in gearbox clutch device, comprising:

[0007] Box;

[0008] A gear shaft is rotatably mounted on the housing, and has a rotating part coaxially on its exterior, with an external spline formed on the exterior of the rotating part.

[0009] A transmission gear is slidably sleeved on the outside of the gear shaft, and its outer wall is coaxially provided with an abutment groove. The inner wall of the transmission gear is formed with an internal spline that matches the external spline.

[0010] A lead screw, which is rotatably mounted on the housing and is connected to the gear shaft for transmission.

[0011] A drive bushing is threaded onto the outside of the lead screw and can be slidably mounted on the housing along its axial direction. The outside of the drive bushing forms a drive part, which is located in the abutment groove and forms a circumferential sliding fit with the abutment groove. When the lead screw rotates, the drive bushing slides axially, so that the transmission gear slides axially, thereby causing the internal spline to engage or disengage with the external spline.

[0012] As a further improvement and optimization of this solution, the transmission gear includes:

[0013] The gear body is a spur gear structure, and the internal spline is formed on one side of the inner wall of the gear body;

[0014] The first copper sleeve is engaged on the side of the gear body away from the internal spline;

[0015] The second copper sleeve is mounted on the gear body and located outside the first copper sleeve, and the abutment groove is formed between the first copper sleeve, the second copper sleeve and the gear body.

[0016] As a further improvement and optimization of this solution, the gear body has an annular mounting groove coaxially formed on the side away from the internal spline, and the first copper sleeve is coaxially engaged in the annular mounting groove.

[0017] As a further improvement and optimization of this solution, the gear body has an annular convex step extending outward coaxially from the side away from the internal spline. The second copper sleeve is detachably mounted on the annular convex step and forms the abutting groove between the annular convex step and the first copper sleeve.

[0018] As a further improvement and optimization of this solution, a mounting hole is formed radially outward on the other side of the inner wall of the gear body. The second copper sleeve includes an insertion part and a limiting part. One end of the insertion part is coaxially inserted into the mounting hole and coaxially sleeved on the outside of the gear shaft. The limiting part is coaxially sleeved on the other end of the insertion part and detachably connected to the annular protrusion. The abutting groove is formed between the limiting part, the first copper sleeve, and the annular protrusion.

[0019] As a further improvement and optimization of this solution, the annular convex step and the limiting part are connected by bolts.

[0020] As a further improvement and optimization of this solution, the drive shaft sleeve is slidably mounted on the housing via a guide assembly.

[0021] As a further improvement and optimization of this solution, the guiding component includes:

[0022] Two mounting blocks are mounted on the outer wall of the drive shaft sleeve and distributed along the axial direction of the drive shaft sleeve. Each mounting block has a positioning hole.

[0023] A limiting rod is provided on the housing, and the limiting groove is distributed along the axial direction of the drive shaft sleeve. One end of the limiting rod is positioned and engaged with one of the positioning holes, and the other end is slidably disposed in the limiting groove.

[0024] As a further improvement and optimization of this solution, the gear shaft and the lead screw are both rotatably mounted in the housing, with the lead screw located above the gear shaft, the two mounting blocks located at the top of the outer wall of the drive shaft sleeve, and the limiting slide groove located at the top of the housing.

[0025] As a further improvement and optimization of this solution, the rotating part and the gear shaft are an integrated structure.

[0026] The positive effects of the above technical solution compared with the existing technology are:

[0027] (1) The built-in gearbox clutch device of this utility model adopts a unique structural design. The gear shaft is rotatably mounted on the housing, and the transmission gear is slidably sleeved on it and achieves clutch engagement through internal and external spline engagement. The drive shaft sleeve is threaded onto the lead screw and can slide axially. Its drive part and the transmission gear are circumferentially slidingly engaged in the contact groove. The internal and external spline engagement can be achieved by rotating the lead screw. This design integrates all components into the housing, eliminating the need for additional complex external transmission mechanisms, avoiding the occupation of a large amount of external space, significantly optimizing the spatial layout of the device, effectively solving the problem of large space occupation of traditional clutch devices, achieving a compact structure, facilitating installation and use in limited spaces, and well adapting to industrial equipment scenarios with strict space requirements.

[0028] (2) The first and second copper sleeves of this utility model have significant advantages in the built-in gearbox clutch device. The two sleeves cooperate with the gear body to form a contact groove, which can accurately control the size and shape of the contact groove. Compared with direct machining on the gear body, it is easier to ensure accuracy and ensure that the drive shaft sleeve drive part and the contact groove achieve good circumferential sliding fit, thereby improving the working stability and reliability of the device. At the same time, the copper sleeve material is smooth and wear-resistant, which can reduce friction and wear with the drive part and ensure long-term stable fit accuracy, so that the transmission gear can accurately and timely slide axially to complete the clutch action. In addition, as wear parts, they can withstand most of the friction and wear, protect the gear body from damage, and only the copper sleeve needs to be replaced after wear, without replacing the gear body, which effectively reduces maintenance costs and extends the service life of the device. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of a built-in gearbox clutch device according to the present invention;

[0030] In the attached diagram: 1. Housing; 2. Gear shaft; 3. Transmission gear; 4. Lead screw; 5. Drive shaft sleeve; 6. Guide assembly; 7. Bolt; 11. Limiting groove; 21. Rotating part; 31. Gear body; 32. First copper sleeve; 33. Second copper sleeve; 34. Abutment groove; 61. Mounting block; 62. Limiting rod; 311. Annular protrusion; 331. Limiting part; 332. Insertion part; 611. Positioning hole. Detailed Implementation

[0031] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of 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.

[0034] Figure 1 This is a schematic diagram of the structure of a built-in gearbox clutch device according to the present invention, as shown below. Figure 1 The diagram illustrates a preferred embodiment of a built-in gearbox clutch device, comprising a housing 1, a gear shaft 2, a transmission gear 3, a lead screw 4, and a drive bushing 5. The gear shaft 2 is rotatably mounted on the housing 1, and has a rotating part 21 coaxially arranged on its exterior. An external spline is formed on the exterior of the rotating part 21. The transmission gear 3 is slidably sleeved on the exterior of the gear shaft 2, and its outer wall is coaxially provided with an abutment groove 34. An internal spline matching the external spline is formed on the inner wall of the transmission gear 3. The lead screw 4 is rotatably mounted on the housing 1 and is driven by the gear shaft 2. The drive bushing 5 is threaded onto the exterior of the lead screw 4 and is slidably mounted on the housing 1 along its axial direction. A drive part is formed on the exterior of the drive bushing 5, which is located within the abutment groove 34 and forms a circumferential sliding fit with the abutment groove 34. When the lead screw 4 rotates, the drive bushing 5 slides axially, causing the transmission gear 3 to slide along its axial direction, thereby causing the internal spline to engage or disengage from the external spline.

[0035] This built-in gearbox clutch device features a unique structural design. The gear shaft 2 is rotatably mounted on the housing 1, and the transmission gear 3 is slidably fitted onto it, engaging and disengaging via internal and external splines. The drive shaft sleeve 5 is threaded onto the lead screw 4 and can slide axially. Its drive part circumferentially slides with the contact groove 34 of the transmission gear 3. Engagement and disengagement via the internal and external splines are achieved through the rotation of the lead screw 4. This design highly integrates all components within the housing 1, eliminating the need for additional complex external transmission mechanisms and avoiding significant external space occupation. It significantly optimizes the device's spatial layout, effectively solving the problem of large space occupation inherent in traditional clutch devices. This compact structure facilitates installation and use in limited spaces, making it well-suited for industrial equipment scenarios with stringent space requirements.

[0036] Furthermore, in a preferred embodiment, the transmission gear 3 includes a gear body 31, a first copper sleeve 32, and a second copper sleeve 33. The gear body 31 is a spur gear structure, and an internal spline is formed on one side of the inner wall of the gear body 31. The first copper sleeve 32 is engaged on the side of the gear body 31 away from the internal spline. The second copper sleeve 33 is mounted on the gear body 31 and located outside the first copper sleeve 32. An abutment groove 34 is formed between the first copper sleeve 32, the second copper sleeve 33, and the gear body 31.

[0037] Specifically, the first copper sleeve 32 and the second copper sleeve 33 have significant advantages in this built-in gearbox clutch device. They cooperate with the gear body 31 to form an abutment groove 34, which can precisely control the size and shape of the abutment groove 34. Compared with machining directly on the gear body 31, it is easier to ensure accuracy, ensuring that the drive part of the drive shaft sleeve 5 and the abutment groove 34 achieve good circumferential sliding fit, improving the working stability and reliability of the device. At the same time, the copper sleeve material is smooth and wear-resistant, which can reduce friction and wear with the drive part, ensuring long-term stable fit accuracy, so that the transmission gear 3 can accurately and timely slide axially to complete the clutch action. In addition, as wear parts, they can withstand most of the friction and wear, protecting the gear body 31 from damage. After wear, only the copper sleeve needs to be replaced, without replacing the gear body 31, effectively reducing maintenance costs and extending the service life of the device.

[0038] Furthermore, as a preferred embodiment, the gear body 31 has an annular mounting groove coaxially formed on the side away from the internal spline, and the first copper sleeve 32 is coaxially engaged in the annular mounting groove.

[0039] Specifically, the annular mounting groove provides a precise and stable installation position for the first copper sleeve 32, ensuring that the first copper sleeve 32 is coaxially set with the gear body 31. This helps maintain the balance and stability of the entire transmission system and reduces vibration and noise caused by installation deviations. At the same time, this locking method is convenient for installation, enabling quick positioning and fixing of the first copper sleeve 32 and improving assembly efficiency. Furthermore, the annular mounting groove effectively limits the movement of the first copper sleeve 32, preventing axial movement or circumferential rotation during operation, ensuring the precision of its fit with the gear body 31 and other components, thereby improving the overall performance and reliability of the clutch device.

[0040] Furthermore, as a preferred embodiment, the gear body 31 has an annular protrusion 311 extending outward coaxially from the side away from the internal spline, and the second copper sleeve 33 is detachably mounted on the annular protrusion 311, forming an abutment groove 34 between the second copper sleeve 32 and the annular protrusion 311.

[0041] Specifically, on the one hand, the annular convex step 311 provides a clear installation and positioning reference for the second copper sleeve 33, ensuring that the second copper sleeve 33 can be accurately installed and precisely cooperate with the first copper sleeve 32 and the annular convex step 311 to form the contact groove 34. This ensures the dimensional and positional accuracy of the contact groove 34, enabling the driving part of the drive shaft sleeve 5 to achieve a stable and precise circumferential sliding fit with it, effectively improving the transmission accuracy and reliability of the clutch device. On the other hand, the detachable design of the second copper sleeve 33 greatly facilitates subsequent maintenance and replacement work.

[0042] Furthermore, in a preferred embodiment, a mounting hole is formed radially outward on the other side of the inner wall of the gear body 31. The second copper sleeve 33 includes an insertion part 332 and a limiting part 331. One end of the insertion part 332 is coaxially inserted into the mounting hole and coaxially sleeved on the outside of the gear shaft 2. The limiting part 331 is coaxially sleeved on the other end of the insertion part 332 and is detachably connected to the annular protrusion 311. An abutment groove 34 is formed between the limiting part 331, the first copper sleeve 32, and the annular protrusion 311.

[0043] Specifically, in terms of installation and positioning, the mounting hole provides a precise installation position for the insertion part 332, ensuring that the second copper sleeve 33 can be accurately installed and precisely cooperate with components such as the gear body 31 and gear shaft 2. This ensures the positional and dimensional accuracy of the contact groove 34, enabling the driving part of the drive shaft sleeve 5 to achieve a stable and precise circumferential sliding fit, thereby improving transmission accuracy and reliability. Regarding structural stability, the insertion fit between the insertion part 332 and the mounting hole, as well as the detachable connection between the limiting part 331 and the annular protrusion 311, enhance the connection stability between the second copper sleeve 33 and the gear body 31 and gear shaft 2, reducing shaking and displacement during operation and ensuring stable operation of the device.

[0044] Furthermore, in a preferred embodiment, the annular protrusion 311 and the limiting portion 331 are connected by bolts 7.

[0045] Furthermore, as a preferred embodiment, the drive shaft sleeve 5 is slidably mounted on the housing 1 via the guide assembly 6.

[0046] Furthermore, in a preferred embodiment, the guide assembly 6 includes two mounting blocks 61 and a limiting rod 62. The two mounting blocks 61 are mounted on the outer wall of the drive bushing 5 and distributed along the axial direction of the drive bushing 5. Each mounting block 61 has a positioning hole 611. The housing 1 is provided with a limiting groove 11, which is distributed along the axial direction of the drive bushing 5. One end of the limiting rod 62 is positioned and engaged with one of the positioning holes 611, and the other end is slidably disposed in the limiting groove 11.

[0047] Specifically, on the one hand, the positioning fit between the limiting rod 62 and the positioning hole 611, as well as the sliding within the limiting groove 11, provides precise guidance for the axial sliding of the drive bushing 5, ensuring that the drive bushing 5 can only slide stably along the predetermined axis. This effectively avoids any deviation or shaking during the sliding process, thereby ensuring that the drive part of the drive bushing 5 and the contact groove 34 can always maintain a good circumferential sliding fit, improving the working accuracy and reliability of the clutch device. On the other hand, the guide assembly 6 has a simple structure and is easy to install and adjust. While ensuring the stable sliding of the drive bushing 5, it does not excessively increase the complexity and cost of the device.

[0048] More specifically, when the inner and outer splines of the transmission gear 3 and the gear shaft 2 are engaged, the limiting rod 62 can be inserted into the limiting hole on the mounting block 61 on the right side, and the limiting rod 62 makes limiting contact with the right side wall of the limiting slide groove 11, which can prevent the drive shaft sleeve 5 from axially moving and affecting the meshing effect of the inner spline. When it is necessary for the inner and outer splines of the transmission gear 3 and the gear shaft 2 to disengage, the limiting rod 62 can be inserted into the limiting hole on the mounting block 61 on the left side. When the limiting rod 62 slides to the right and engages with the right side wall of the limiting slide groove 11, the inner and outer splines of the transmission gear 3 and the gear shaft 2 are completely disengaged.

[0049] Furthermore, in a preferred embodiment, the gear shaft 2 and the lead screw 4 are both rotatably disposed inside the housing 1, with the lead screw 4 located above the gear shaft 2, the two mounting blocks 61 located at the top of the outer wall of the drive shaft sleeve 5, and the limiting slide groove 11 located at the top of the housing 1.

[0050] Furthermore, as a preferred embodiment, the rotating part 21 and the gear shaft 2 are an integrated structure.

[0051] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A built-in gearbox clutch device, characterized in that, include: Box; A gear shaft is rotatably mounted on the housing, and has a rotating part coaxially on its exterior, with an external spline formed on the exterior of the rotating part. A transmission gear is slidably sleeved on the outside of the gear shaft, and its outer wall is coaxially provided with an abutment groove. The inner wall of the transmission gear is formed with an internal spline that matches the external spline. A lead screw, which is rotatably mounted on the housing and is connected to the gear shaft for transmission. A drive bushing is threaded onto the outside of the lead screw and can be slidably mounted on the housing along its axial direction. The outside of the drive bushing forms a drive part, which is located in the abutment groove and forms a circumferential sliding fit with the abutment groove. When the lead screw rotates, the drive bushing slides axially, so that the transmission gear slides axially, thereby causing the internal spline to engage or disengage with the external spline.

2. The built-in gearbox clutch device according to claim 1, characterized in that, The transmission gear includes: The gear body is a spur gear structure, and the internal spline is formed on one side of the inner wall of the gear body; The first copper sleeve is engaged on the side of the gear body away from the internal spline; The second copper sleeve is mounted on the gear body and located outside the first copper sleeve, and the abutment groove is formed between the first copper sleeve, the second copper sleeve and the gear body.

3. The built-in gearbox clutch device according to claim 2, characterized in that, The gear body has an annular mounting groove coaxially formed on the side away from the internal spline, and the first copper sleeve is coaxially engaged in the annular mounting groove.

4. The built-in gearbox clutch device according to claim 3, characterized in that, The gear body has an annular protrusion extending outward coaxially from the side away from the internal spline. The second copper sleeve is detachably mounted on the annular protrusion and forms the abutting groove between the second copper sleeve and the annular protrusion.

5. The built-in gearbox clutch device according to claim 4, characterized in that, A mounting hole is formed radially outward on the other side of the inner wall of the gear body. The second copper sleeve includes an insertion part and a limiting part. One end of the insertion part is coaxially inserted into the mounting hole and coaxially sleeved on the outside of the gear shaft. The limiting part is coaxially sleeved on the other end of the insertion part and detachably connected to the annular protrusion. The abutting groove is formed between the limiting part, the first copper sleeve, and the annular protrusion.

6. The built-in gearbox clutch device according to claim 5, characterized in that, The annular protrusion and the limiting part are connected by bolts.

7. The built-in gearbox clutch device according to claim 1, characterized in that, The drive shaft sleeve is slidably mounted on the housing via a guide assembly.

8. The built-in gearbox clutch device according to claim 7, characterized in that, The guiding component includes: Two mounting blocks are mounted on the outer wall of the drive shaft sleeve and distributed along the axial direction of the drive shaft sleeve. Each mounting block has a positioning hole. A limiting rod is provided on the housing, and the limiting groove is distributed along the axial direction of the drive shaft sleeve. One end of the limiting rod is positioned and engaged with one of the positioning holes, and the other end is slidably disposed in the limiting groove.

9. The built-in gearbox clutch device according to claim 8, characterized in that, The gear shaft and the lead screw are both rotatably mounted inside the housing, with the lead screw located above the gear shaft. The two mounting blocks are located at the top of the outer wall of the drive shaft sleeve, and the limiting slide groove is located at the top of the housing.

10. The built-in gearbox clutch device according to claim 1, characterized in that, The rotating part and the gear shaft are an integrated structure.

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