Clutch hub body

Abstract

The utility model relates to the technical field of clutch accessory processing, and discloses a clutch hub body which is composed of an input shaft and a cylinder body sleeved on the input shaft, a connecting ring table is arranged on the side wall of the input shaft, the peripheral surface of the ring table is non-circular and is matched with an annular baffle plate on the inner side wall of an inner ring of the cylinder body to form closed connection, and a plurality of limiting notches are arranged on the outer wall of the cylinder body at intervals. Compared with traditional disc welding, the design can effectively prevent relative rotation, stress is shared under the high-torque working condition, and the deformation resistance is remarkably improved. Meanwhile, the non-circular connecting ring table provides a positioning reference for machining and assembling, when an oil way and an oil hole in the input shaft are machined, accurate positioning can be achieved, the machining difficulty and errors can be reduced, then the production cost is reduced, and the double advantages of performance improvement and cost control are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to clutch accessory processing technical field, concretely relates to a clutch hub. BACKGROUND

[0002] In the related technical field of clutch hub, in the current common structural design, the input shaft and the hub sleeved on the input shaft are usually connected by disc welding. However, this welding mode has significant limitations. When the clutch operates under high torque conditions, the welding point is prone to cracking and deformation due to the large force it bears, which seriously affects the structural stability and service life of the clutch hub, and thus reduces the reliability of the entire clutch system.

[0003] At the same time, in the design of the input shaft, in order to meet the specific functional requirements, it is often necessary to set up an oil channel inside it and to open an oil hole on the shaft body of the input shaft to communicate with the oil channel. If the disc structure is set in the circumferential direction of the input shaft, the positioning of the oil channel and the oil hole is extremely difficult in the actual processing process. This is because the existence of the disc structure makes it difficult to determine the position of the oil hole and the direction of the oil channel, greatly increasing the process complexity of processing the oil channel and the oil hole. Moreover, due to the difficulty in positioning, it is inevitable that there will be a large error in the processing process, resulting in the processed oil channel and oil hole failing to meet the design requirements, not only wasting a lot of manpower, material resources and time cost, but also possibly needing to be reprocessed or scrapped due to substandard product quality, further increasing the production cost. SUMMARY

[0004] The utility model aims at the above problems and provides a clutch hub which effectively distributes the stress and can accurately position the input shaft for easy processing and installation.

[0005] To achieve the above purpose, the utility model discloses a clutch hub, which comprises an input shaft and a cylinder body sleeved on the input shaft, and is characterized in that a connecting ring platform is arranged on the side wall of the input shaft in the circumferential direction, the outer peripheral surface of the connecting ring platform is non-circular, an annular baffle is arranged on the inner side wall of the inner ring of the cylinder body, the inner peripheral surface of the annular baffle is matched with the shape of the outer peripheral surface of the connecting ring platform, and the two form a closed connection, and a plurality of limiting notches are arranged on the cylinder wall of the cylinder body.

[0006] With the above structure, the outer periphery of the connecting ring platform is in a non-circular shape and is connected with the annular baffle on the inner side wall of the inner ring, compared with traditional disc welding, this unique non-circular cooperation can effectively prevent relative rotation between the two, and can effectively share the stress under high torque conditions, thereby improving the deformation resistance, and the non-circular shape of the outer periphery of the connecting ring platform provides a clear positioning reference for subsequent processing and assembly, which can accurately determine the position when processing the internal oil circuit and oil hole of the input shaft, reduces the processing difficulty, improves the processing precision, reduces the error caused by inaccurate positioning, and further reduces the production cost.

[0007] Preferably, the outer periphery of the connecting ring platform is provided with at least one cut surface, and the inner edge of the annular baffle is provided with a positioning surface matched with the cut surface. By providing at least one cut surface on the outer periphery of the connecting ring platform and providing a positioning surface matched with the cut surface on the inner edge of the annular baffle, this connection method makes the connection of the annular baffle and the connecting ring platform more stable, and the force distribution is more uniform when bearing torque, effectively avoiding concentrated stress on the welding points, reducing the risk of welding point cracking, and prolonging the service life of the clutch hub. The existence of the cut surface provides an accurate positioning surface for the installation of the annular baffle, which can more accurately install the annular baffle in place during assembly, reduce assembly errors, improve product assembly quality, and accurately determine the position when processing the internal oil circuit and oil hole of the input shaft, reduce the processing difficulty, and improve the processing precision.

[0008] Preferably, a limiting stop is arranged at the outer edge of the connecting ring platform, and a connecting groove matched with the limiting stop is arranged on the inner edge of the annular baffle, and the inner edge of the annular baffle and the outer edge of the connecting ring platform are welded by electron beam or laser. By arranging a limiting stop on the connecting ring platform and a connecting groove on the annular baffle, and then welding them by electron beam or laser, this welding method can concentrate energy, has large welding depth and high welding quality, compared with traditional welding, can greatly enhance the connection strength of the annular baffle and the connecting ring platform, and can maintain stable connection under high torque without easy cracking and deformation. The design of the limiting stop and the connecting groove provides good guidance and constraint for the welding process, making the welding process easier to control.

[0009] Preferably, the outer contour of the connecting ring platform is provided with a plurality of teeth or grooves, and the inner contour shape of the annular baffle is matched with the outer contour of the connecting ring platform. The polygonal or multi-tooth structure has a unique shape feature, which is easier to achieve accurate positioning and centering during processing and assembly, reduces the processing and assembly difficulty and improves the product quality, and can effectively share the stress, thereby improving the deformation resistance.

[0010] Preferably, a plurality of limiting notches are arranged on the cylinder wall of the cylinder body on the left and right sides of the annular baffle, and the plurality of limiting notches are distributed along the circumference of the cylinder wall. The plurality of limiting notches are arranged on the outer wall of the cylinder body on the left and right sides of the annular baffle and are distributed along the circumference, which facilitates the installation of the synchronous steel sheet in the clutch and further limits the synchronous steel sheet.

[0011] Preferably, the input shaft is provided with a first working oil channel, a second working oil channel and a lubricating oil channel arranged radially along the input shaft. By integrating various oil channels in the input shaft, the internal space of the input shaft is reasonably utilized, the structure of the entire clutch system is more compact, external pipeline connections are reduced, and the complexity and failure risk of the system are reduced.

[0012] Preferably, the input shaft is provided with a first oil delivery hole connected to the first working oil channel at a position on the left side of the connecting ring platform, a second oil delivery hole connected to the second working oil channel at a position on the right side of the connecting ring platform, a third oil delivery hole connected to the lubricating oil channel at a position on the left side of the first oil delivery hole, and a fourth oil delivery hole connected to the lubricating oil channel at a position on the right side of the second oil delivery hole. By providing multiple oil delivery holes on the input shaft corresponding to different oil channels, oil can be accurately delivered to each working part of the clutch, precise control of different working oil channels and lubricating oil channels can be achieved, and the stability and reliability of the clutch operation under various working conditions can be ensured.

[0013] Preferably, a first sealing ring mounting groove is arranged on the shaft body between the first oil delivery hole and the third oil delivery hole of the input shaft, and a second sealing ring mounting groove is arranged on the shaft body between the second oil delivery hole and the fourth oil delivery hole of the input shaft. The first sealing ring mounting groove and the second sealing ring mounting groove are both grooves arranged circumferentially on the side wall of the input shaft. By arranging the first sealing ring mounting groove and the second sealing ring mounting groove on the input shaft, and installing the sealing rings, oil can be effectively prevented from flowing from the working chamber into the lubricating chamber, and system failure and performance degradation caused by oil leakage can be avoided.

[0014] Preferably, the left and right ends of the shaft body of the input shaft are respectively provided with external splines and internal splines for power transmission. By arranging external splines and internal splines on the shaft body, power transmission of the input shaft can be facilitated.

[0015] The input shaft is provided with clamping grooves on the left and right sides of the connecting ring platform for installing elastic retaining rings for shafts, and the first sealing ring mounting groove and the second sealing ring mounting groove are arranged on the shaft body between the two clamping grooves. By installing elastic retaining rings for shafts in the two clamping grooves, the reset spring installed on the input shaft can be easily limited.

[0016] The utility model discloses the beneficial effect lies in: the utility model discloses can effectively apportion stress and can accurate positioning convenient input shaft processing and installation, through the non -circular shape of connecting ring platform outer peripheral surface and with the annular baffle of clutch hub inner ring inner wall matching connection, compared with traditional disc welding, this unique non -circular cooperation can effectively prevent the relative rotation between both, under high torque working condition, can effectively apportion stress, thereby improve the deformation resistance, and the non -circular shape of connecting ring platform outer peripheral surface provides the explicit positioning reference for subsequent processing and assembly, when processing input shaft internal oil circuit and oil hole, can accurate position, reduce processing difficulty, improve processing accuracy, reduce the error of inaccuracy of positioning, and further reduce production cost. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the whole structure schematic diagram of the utility model;

[0018] Figure 2 It is the sectional structure schematic diagram of the utility model;

[0019] Figure 3 It is the first working oil circuit and the first oil hole position relation structure schematic diagram in the utility model;

[0020] Figure 4 It is the second working oil circuit and the second oil hole position relation structure schematic diagram in the utility model;

[0021] Figure 5 It is the use state schematic diagram of the utility model's card slot;

[0022] Figure 6 It is the structure schematic diagram of the utility model preferred specific embodiment.

[0023] In the drawing: 1, input shaft;2, cylinder;3, connecting ring platform;4, annular baffle;5, limit notch;6, cut surface;7, limit block;8, connecting slot;9, positioning surface;10, first working oil circuit;11, second working oil circuit;12, lubricating oil circuit;13, first oil hole;14, second oil hole;15, third oil hole;16, fourth oil hole;17, first sealing ring installation slot;18, second sealing ring installation slot;19, outer spline;20, inner spline;21, card slot. DETAILED DESCRIPTION

[0024] The specific embodiment of the utility model is described in further detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but are not used to limit the scope of the utility model.

[0025] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0026] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] The following is a preferred embodiment of the present application in conjunction with the drawings.

[0028] As shown in Figure 1 and Figure 2 The utility model discloses an input shaft 1 and the cylinder 2 of being sleeved on input shaft 1, and the connecting ring table 3 is equipped with the circumferential direction on the side wall of input shaft 1, the outer peripheral surface of this connecting ring table 3 is noncircular shape, and the inner ring inner side wall of cylinder 2 is equipped with annular baffle 4, wherein, through the noncircular shape of the outer peripheral surface of connecting ring table 3 and the matching connection with the annular baffle 4 of the inner ring inner side wall of cylinder 2, compared with traditional disc welding, this unique noncircular cooperation can effectively prevent the relative rotation between the two, and under high torque working condition, can effectively share the stress, thereby improving the deformation resistance, and the inner peripheral surface of annular baffle 4 and the outer peripheral surface shape of connecting ring table 3 are matched and the two form closed connection, when designing, the outer peripheral portion of connecting ring table 3 is equipped with at least one cut surface 6, and the inner side edge of annular baffle 4 is connected on the outer edge circumferential surface and positioning plane of connecting ring table 3, so that the outer peripheral portion of connecting ring table 3 is equipped with at least one cut surface 6, and the inner side edge of annular baffle 4 is connected on the outer edge circumferential surface and positioning plane of connecting ring table 3, this connection mode makes the connection of annular baffle 4 and connecting ring table 3 more stable, when bearing torque, the force distribution is more uniform, effectively avoids the stress concentration of welding spot and reduces the risk of welding spot cracking, wherein the existence of cut surface 6 provides accurate positioning surface for the installation of annular baffle 4, in the assembly process, workers can more accurately install annular baffle 4 to the right position, reduce assembly error, improve product assembly quality, and when machining the internal oil circuit and oil hole of input shaft 1, the position can be accurately determined and the machining difficulty is reduced.

[0029] In the manufacturing process, the number of cutaway surfaces 6 on the connecting ring base 3 is one or more, and one or more positioning surfaces 9 matched with the cutaway surfaces 6 are arranged on the inner side edge of the ring-shaped baffle 4, wherein the outer end connecting surface of the positioning surface 9 is a plane and has the same size as the cutaway surface 6, so that the number of cutaway surfaces 6 on the connecting ring base 3 and the number of positioning surfaces 9 on the ring-shaped baffle 4 can be set to one or more according to actual working conditions, so that the flexible design can meet different torque requirements and structural strength requirements, improve the versatility and adaptability of the product, and the positioning surface 9 outer end connecting surface and the cutaway surface 6 have the same size and shape matching, which further ensures the accuracy and tightness of the connection. Figure 6 As shown in the preferred embodiment of the utility model, the number of cutaway surfaces 6 is two and is arranged oppositely along the axis of the input shaft 1 in the production process, the two opposite cutaway surfaces 6 are arranged on the connecting ring base 3, so that the connecting ring base 3 forms a non-circular structure, and the unique non-circular cooperation can effectively prevent the relative rotation between the connecting ring base 3 and the ring-shaped baffle 4, can effectively share the stress in the high torque working condition, and thus improves the deformation resistance.

[0030] As shown in the preferred embodiment of the utility model, Figure 1 and Figure 2 In the preferred embodiment of the utility model, the outer edge of the connecting ring base 3 is provided with a limiting stop 7, the inner edge of the ring-shaped baffle 4 is provided with a connecting groove 8 matched with the limiting stop 7, and the inner edge of the ring-shaped baffle 4 and the outer edge of the connecting ring base 3 are welded by electron beam or laser. The limiting stop 7 is arranged on the connecting ring base 3, and the connecting groove 8 is arranged on the ring-shaped baffle 4, and then the two are welded by electron beam or laser after cooperation, so that the welding method has concentrated energy, large welding depth and high welding quality, compared with the traditional welding, the connection strength of the ring-shaped baffle 4 and the connecting ring base 3 can be greatly enhanced, and stable connection can be maintained under high torque without easy cracking and deformation. The design of the limiting stop 7 and the connecting groove 8 provides good guidance and constraint for the welding process, so that the welding process is easier to control. Of course, the outer contour of the connecting ring base 3 can also be designed to have a plurality of teeth or grooves, and the inner contour of the ring-shaped baffle 4 is matched with the outer contour of the connecting ring base 3, so that the polygonal or multi-tooth structure has unique shape characteristics, which can realize accurate positioning and centering in the machining and assembly process, reduce the machining and assembly difficulty, improve the product quality, and effectively share the stress, thereby improving the deformation resistance.

[0031] As shown in the preferred embodiment of the utility model, Figure 1 and Figure 2As shown, multiple limiting notches 5 are provided on the cylinder wall of the cylinder 2. The multiple limiting notches 5 are respectively provided on the outer wall of the cylinder 2 on the left and right sides of the annular baffle 4. The multiple limiting notches 5 are distributed circumferentially along the outer wall of the cylinder 2. In this way, by providing multiple limiting notches 5 on the outer wall of the cylinder 2 on the left and right sides of the annular baffle 4 and distributing them circumferentially, it is convenient to install the synchronizing steel plate in the clutch and to further limit the synchronizing steel plate.

[0032] like Figure 2 - Figure 4 As shown, the input shaft 1 is provided with a first working oil passage 10, a second working oil passage 11 and a lubrication oil passage 12 arranged radially along the input shaft 1. By integrating multiple oil passages into the input shaft 1, the internal space of the input shaft 1 is rationally utilized, making the structure of the entire clutch system more compact, reducing external pipeline connections, and lowering the complexity and failure risk of the system. In the design, a first oil supply hole 13 connected to the first working oil passage 10 is provided on the input shaft 1 at the position on the left side of the connecting ring platform 3, and a second oil supply hole 14 connected to the second working oil passage 11 is provided on the input shaft 1 at the position on the right side of the connecting ring platform 3. A third oil supply hole 15 and a fourth oil supply hole 16 connected to the lubrication oil passage 12 are respectively provided on the input shaft 1 at the position on the left side of the first oil supply hole 13 and the position on the right side of the second oil supply hole 14. In this way, by setting multiple oil supply holes on the input shaft 1 corresponding to different oil passages, the oil can be accurately delivered to each working part of the clutch, which can realize precise control of different working oil passages and lubrication oil passages 12, and can also ensure that the clutch can operate normally under various working conditions and improve the stability and reliability of the clutch operation. During manufacturing, a first sealing ring mounting groove 17 is provided on the shaft body of the input shaft 1 located between the first oil supply hole 13 and the third oil supply hole 15. A second sealing ring mounting groove 18 is provided on the shaft body of the input shaft 1 located between the second oil supply hole 14 and the fourth oil supply hole 16. Both the first sealing ring mounting groove 17 and the second sealing ring mounting groove 18 are grooves arranged circumferentially around the side wall of the input shaft 1. By providing the first sealing ring mounting groove 17 and the second sealing ring mounting groove 18 on the input shaft 1, the installation of the sealing ring can effectively prevent oil from flowing from the working chamber into the lubrication chamber, avoiding system failures and performance degradation caused by oil leakage.

[0033] like Figure 1 , Figure 2 as well as Figure 5As shown, the input shaft 1 is provided with an outer spline 19 and an inner spline 20 at the left and right ends of the shaft body for power transmission, so that the power transmission of the input shaft 1 can be facilitated by providing the outer spline 19 and the inner spline 20 on the shaft body. The input shaft 1 is provided with a clamping groove 21 for mounting the elastic shaft retainer at the left and right sides of the connecting ring platform, and the first sealing ring mounting groove 17 and the second sealing ring mounting groove 18 are located on the shaft body between the two clamping grooves 21. By mounting the elastic shaft retainer in the two clamping grooves 21, the reset spring mounted on the input shaft 1 can be conveniently limited. The reset spring is usually used to reset the piston of the clutch, one end of the reset spring is in contact with the piston, and the other end is positioned by the spring retainer sleeve mounted on the input shaft 1 and the elastic shaft retainer clamped in the clamping groove 21.

[0034] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalent replacements. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A clutch hub, comprising an input shaft (1) and a cylindrical body (2) fitted onto the input shaft (1), characterized in that: The input shaft (1) has a connecting ring platform (3) circumferentially arranged on its side wall. The outer circumferential surface of the connecting ring platform (3) is non-circular. The inner side wall of the inner ring of the cylinder (2) is provided with an annular baffle (4). The inner circumferential surface of the annular baffle (4) matches the shape of the outer circumferential surface of the connecting ring platform (3) and the two form a closed connection. The cylinder wall of the cylinder (2) is provided with multiple limiting notches (5).

2. The clutch hub as described in claim 1, characterized in that: The outer periphery of the connecting ring platform (3) is provided with at least one cutting surface (6), and the inner edge of the annular baffle (4) is provided with a positioning surface (9) that matches the cutting surface (6).

3. The clutch hub as described in claim 1, characterized in that: A limiting stop (7) is provided at the outer edge of the connecting ring platform (3), and a connecting groove (8) adapted to the limiting stop (7) is provided on the inner edge of the upper ring of the annular baffle (4). The inner edge of the annular baffle (4) and the outer edge of the connecting ring platform (3) are welded by electron beam or laser.

4. The clutch hub as described in claim 1, characterized in that: The outer contour of the connecting ring platform (3) is provided with several teeth or grooves, and the inner contour shape of the annular baffle (4) matches the outer contour of the connecting ring platform (3).

5. The clutch hub as described in claim 1, characterized in that: The multiple limiting notches (5) are respectively set on the cylinder wall of the cylinder (2) on the left and right sides of the annular baffle (4), and the multiple limiting notches (5) are distributed circumferentially along the outer wall of the cylinder (2).

6. The clutch hub as described in claim 1, characterized in that: The input shaft (1) is provided with a first working oil passage (10), a second working oil passage (11) and a lubricating oil passage (12) arranged radially along the input shaft (1).

7. The clutch hub as described in claim 6, characterized in that: The input shaft (1) is provided with a first oil supply hole (13) connected to the first working oil passage (10) at the position to the left of the connecting ring platform (3). The input shaft (1) is provided with a second oil supply hole (14) connected to the second working oil passage (11) at the position to the right of the connecting ring platform (3). The input shaft (1) is provided with a third oil supply hole (15) and a fourth oil supply hole (16) connected to the lubricating oil passage (12) at the positions to the left of the first oil supply hole (13) and the right of the second oil supply hole (14), respectively.

8. The clutch hub as described in claim 7, characterized in that: A first sealing ring mounting groove (17) is provided on the shaft body between the first oil supply hole (13) and the third oil supply hole (15) on the input shaft (1), and a second sealing ring mounting groove (18) is provided on the shaft body between the second oil supply hole (14) and the fourth oil supply hole (16) on the input shaft (1). The first sealing ring mounting groove (17) and the second sealing ring mounting groove (18) are both grooves arranged circumferentially around the side wall of the input shaft (1).

9. The clutch hub as described in claim 1, characterized in that: The input shaft (1) has an external spline (19) and an internal spline (20) for power transmission at its left and right ends respectively.

10. The clutch hub as described in claim 8, characterized in that: The input shaft (1) has slots (21) on both sides of the connecting ring platform (3) for installing the shaft elastic retaining ring. The first sealing ring mounting slot (17) and the second sealing ring mounting slot (18) are located on the shaft body between the two slots (21).

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