Coupling with cross shaft joint structure

Abstract

The utility model provides a coupler with a cross shaft joint structure, which comprises a power input end plate, a power output end plate, a switching transmission core plate, input transmission mandrels and output transmission mandrels, and a connecting line between the output transmission mandrels and a connecting line between the input transmission mandrels of the coupler are mutually crossed to form a cross structure. By means of the structure, when the coupler bears torque, the torque can be evenly distributed to all the transmission mandrels through the through-connection transmission core plate, the input transmission mandrel and the output transmission mandrel are directly installed in the power input end plate and the power output end plate respectively and connected through the through-connection transmission core plate, the axial length of the coupler is effectively shortened, and the coupling is more compact in structure. The input transmission inner ring and the input transmission outer ring are matched through the spherical sliding contact surfaces, the output transmission inner ring and the output transmission outer ring are matched through the spherical sliding contact surfaces, the spherical sliding contact surfaces can evenly disperse torque to the whole contact surfaces, and therefore the bearing capacity of the coupler is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to transmission equipment especially a coupling with cross axle joint structure. BACKGROUND

[0002] Patent document CN222208696U discloses a universal coupling, which comprises a universal joint and a clamp, the universal joint is provided with two groups, the universal joint comprises connecting prongs, transmission prongs and a cross axle, the transmission prongs are rotationally connected to the connecting prongs on the opposite sides of the two groups through the cross axle, the back sides of the two groups of connecting prongs are connected with the tail flywheel of the engine and the power distribution shaft respectively, the two groups of transmission prongs are connected through the clamp, the clamp adopts a split structure, comprising a left part and a right part, the left part and the right part are connected through connecting bolts, the clamp adopting the split structure can be disassembled, thereby completing the disassembly of the universal coupling, the installation is quick and convenient, and the maintenance and disassembly are quick. However, this conventional universal coupling needs a certain space in the axial direction to accommodate the journal of the cross axle and the matching gap between the shaft and the shaft hole, the axial dimension is relatively large, and the carrying capacity is relatively small. Therefore, it is necessary to optimize the structure to overcome the above-mentioned defects. SUMMARY

[0003] The utility model aims at providing a coupling with cross axle joint structure to reduce the axial dimension and improve the carrying capacity.

[0004] The utility model adopts the technical scheme that:

[0005] A coupling with cross axle joint structure comprises:

[0006] A power input end plate, which can be connected with a power input mechanism through a connecting piece;

[0007] A power output end plate, which is in position correspondence with the power input end plate and can be connected with a power output mechanism through a connecting piece;

[0008] Further comprising:

[0009] An adapter transmission core plate, which is located between the power input end plate and the power output end plate;

[0010] An input transmission core shaft, which is provided in pairs, each input transmission core shaft is installed in the power input end plate and is connected with the adapter transmission core plate through a spherical surface sliding bearing;

[0011] The output transmission mandrels are provided with a pair of output transmission mandrels, each of which is installed in the power output end plate and is connected with the adapter transmission core plate through a spherical surface sliding bearing, and the connecting lines between the output transmission mandrels and the connecting lines between the input transmission mandrels are crossed to form a cross structure, so that the power input end plate and the power output end plate can be deflected at two ends of the adapter transmission core plate, respectively.

[0012] In an embodiment of the present application, the spherical surface sliding bearing is a self-lubricating bearing.

[0013] In an embodiment of the present application, the adapter transmission core plate is provided with an input positioning through hole, and an input transmission outer ring is installed in the input positioning through hole, the inner wall of the input transmission outer ring is provided with a spherical surface sliding contact surface, an input transmission inner ring is installed at the outer end of the input transmission mandrel, the outer wall of the input transmission inner ring is provided with a spherical surface sliding contact surface, the input transmission inner ring is embedded in the input transmission outer ring and is matched through the spherical surface sliding contact surface.

[0014] In an embodiment of the present application, the adapter transmission core plate is provided with an input transmission end ring on each side, the input transmission end ring extends along the circumference of the input positioning through hole, the outer edge of the input transmission end ring is engaged with the adapter transmission core plate, and the inner edge of the input transmission end ring is engaged with the input transmission outer ring, the input transmission end ring axially positions the input transmission outer ring.

[0015] The outer wall of the input transmission mandrel is provided with an input transmission convex step, and the outer end of the input transmission mandrel is provided with an input transmission end cover, the two ends of the input transmission inner ring are abutted with the input transmission convex step and the input transmission end cover, respectively, and the input transmission convex step and the input transmission end cover axially position the input transmission inner ring.

[0016] In an embodiment of the present application, the inside of the power input end plate is provided with an input positioning recess, the outer end of the input transmission mandrel extends into the input positioning recess and is fixedly connected with the power input end plate, and the inner end of the input transmission mandrel extends to the adapter transmission core plate.

[0017] In an embodiment of the present application, the outer wall of the input transmission mandrel is provided with an input positioning flange, the input positioning flange is abutted with the inner side of the power input end plate and is engaged through a connecting piece, so that the power transmission mandrel is fixedly connected with the power input end plate, and the input positioning flange axially positions the input transmission mandrel. In an embodiment of the present application, the inner side of the power input end plate is further provided with an input positioning recess ring, and the input positioning flange is embedded in the input positioning recess ring.

[0018] In an embodiment of the utility model, the output positioning through hole is arranged in the adapter transmission core plate, the output transmission outer ring is installed in the output positioning through hole, the spherical sliding contact surface is formed on the inner wall of the output transmission outer ring, the output transmission inner ring is installed on the outer end of the output transmission core shaft, the spherical sliding contact surface is formed on the outer wall of the output transmission inner ring, the output transmission inner ring is embedded in the output transmission outer ring and is matched through the spherical sliding contact surface.

[0019] In an embodiment of the utility model, the output transmission end ring is arranged on both sides of the adapter transmission core plate, the output transmission end ring extends along the circumference of the output positioning through hole, the outer edge of the output transmission end ring is engaged with the adapter transmission core plate, and the inner edge of the output transmission end ring is engaged with the output transmission outer ring, the output transmission end ring is used to axially position the output transmission outer ring.

[0020] The output transmission core shaft is provided with the output transmission convex step on the outer wall, the output transmission end cover is arranged on the outer end of the output transmission convex step, the output transmission inner ring is abutted with the output transmission convex step and the output transmission end cover at both ends, and the output transmission convex step and the output transmission end cover are used to axially position the output transmission inner ring.

[0021] In an embodiment of the utility model, the output positioning through hole is arranged in the adapter transmission core plate, the output transmission outer ring is installed in the output positioning through hole, the spherical sliding contact surface is formed on the inner wall of the output transmission outer ring, the output transmission inner ring is installed on the outer end of the output transmission core shaft, the spherical sliding contact surface is formed on the outer wall of the output transmission inner ring, the output transmission inner ring is embedded in the output transmission outer ring and is matched through the spherical sliding contact surface.

[0022] In an embodiment of the utility model, the output positioning through hole is arranged in the adapter transmission core plate, the output transmission outer ring is installed in the output positioning through hole, the spherical sliding contact surface is formed on the inner wall of the output transmission outer ring, the output transmission inner ring is installed on the outer end of the output transmission core shaft, the spherical sliding contact surface is formed on the outer wall of the output transmission inner ring, the output transmission inner ring is embedded in the output transmission outer ring and is matched through the spherical sliding contact surface.

[0023] The utility model discloses a transmission core shaft and a power output end plate are fixedly connected through an adapter transmission core plate, the adapter transmission core plate is provided with an output positioning through hole, and the output transmission outer ring is installed in the output positioning through hole.

[0024] The connecting line between the output transmission core shaft of the coupling and the connecting line between the input transmission core shaft cross each other to form a cross structure, so that the coupling can evenly distribute torque to each transmission core shaft through the adapter transmission core plate when the coupling bears torque, the input transmission core shaft and the output transmission core shaft are directly installed in the power input end plate and the power output end plate respectively and are connected through the adapter transmission core plate, the axial direction redundant components are reduced, the axial length of the coupling is effectively shortened, the spherical sliding contact surface is matched between the input transmission inner ring and the input transmission outer ring and between the output transmission inner ring and the output transmission outer ring, the spherical sliding contact surface can evenly distribute torque to the whole contact surface when the coupling transmits torque, so that the carrying capacity of the coupling is improved, the coupling adopts a self-lubricating bearing structure, does not need to add lubricant, and can reduce the maintenance operation steps and working time. Attached Figure Description

[0025] Fig. 1 This is a schematic diagram of the coupling with a cross-shaped joint structure proposed in this utility model;

[0026] Fig. 2 This is one of the exploded views of the coupling;

[0027] Fig. 3 This is the second exploded view of the coupling;

[0028] Fig. 4 This is one of the schematic diagrams of the cross-sectional structure of the coupling;

[0029] Fig. 5 This is the second schematic diagram of the cross-sectional structure of the coupling. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0031] like Figs. 1-5 As shown, the coupling with a cross-shaft joint structure proposed in this utility model includes a power input end plate 100, a power output end plate 200, a transition transmission core plate 300, an input transmission spindle 400, and an output transmission spindle 500. The power input end plate can be connected to the power input mechanism via a connector. The power output end plate corresponds to the power input end plate and can be connected to the power output mechanism via a connector. The transition transmission core plate is located between the power input end plate and the power output end plate. A pair of input transmission spindles are provided, each installed in the power input end plate and connected to the transition transmission core plate via spherical sliding bearings. A pair of output transmission spindles are provided, each installed in the power output end plate and connected to the transition transmission core plate via spherical sliding bearings. The connecting lines between the output transmission spindles and the connecting lines between the input transmission spindles intersect to form a cross structure, allowing the power input end plate and the power output end plate to deflect at both ends of the transition transmission core plate. In this embodiment, the spherical sliding bearings are self-lubricating bearings.

[0032] In this embodiment, a pair of input positioning through holes 310 are formed in the adapter transmission core plate, and an input transmission outer ring 410 is respectively mounted in each input positioning through hole. The inner wall of the input transmission outer ring has a spherical sliding contact surface. An input transmission inner ring 420 is mounted on the outer end of the input transmission core shaft, and the outer wall of the input transmission inner ring has a spherical sliding contact surface. The input transmission inner ring is embedded in the input transmission outer ring and is matched through the spherical sliding contact surface.

[0033] In this embodiment, an input transmission end ring 430 is respectively arranged on both sides of the adapter transmission core plate. The input transmission end ring respectively extends along the circumference of the input positioning through hole, and the outer edge of the input transmission end ring is engaged with the adapter transmission core plate, and the inner edge of the input transmission end ring is engaged with the input transmission outer ring. The input transmission end ring axially positions the input transmission outer ring.

[0034] An input transmission convex step 440 is formed on the outer wall of the input transmission core shaft, and an input transmission end cover 450 is arranged on the outer end of the input transmission convex step. The two ends of the input transmission inner ring are respectively abutted with the input transmission convex step and the input transmission end cover, and the input transmission inner ring is axially positioned by the input transmission convex step and the input transmission end cover.

[0035] In this embodiment, an input positioning recess 110 is formed in the inner side of the power input end plate. The outer end of the input transmission core shaft extends into the input positioning recess and is fixedly connected with the power input end plate, and the inner end of the input transmission core shaft extends towards the adapter transmission core shaft.

[0036] In this embodiment, an input positioning flange 460 is arranged on the outer wall of the input transmission core shaft. The input positioning flange is abutted with the inner side of the power input end plate and is engaged through a connecting piece, so as to fixedly connect the power transmission core shaft with the power input end plate. The input positioning flange axially positions the input transmission core shaft. In this embodiment, an input positioning recess ring 120 is also formed in the inner side of the power input end plate, and the input positioning flange is embedded in the input positioning recess ring.

[0037] In this embodiment, a pair of output positioning through holes 320 are formed in the adapter transmission core plate, and an output transmission outer ring 510 is mounted in the output positioning through hole. The inner wall of the output transmission outer ring has a spherical sliding contact surface. An output transmission inner ring 520 is mounted on the outer end of the output transmission core shaft, and the outer wall of the output transmission inner ring has a spherical sliding contact surface. The output transmission inner ring is embedded in the output transmission outer ring and is matched through the spherical sliding contact surface.

[0038] In this embodiment, an output transmission end ring 530 is respectively arranged on both sides of the adapter transmission core plate. The output transmission end ring respectively extends along the circumference of the output positioning through hole, and the outer edge of the output transmission end ring is engaged with the adapter transmission core plate, and the inner edge of the output transmission end ring is engaged with the output transmission outer ring. The output transmission end ring axially positions the output transmission outer ring.

[0039] The output transmission core shaft outer wall is provided with an output transmission convex step 540, and the outer end is provided with an output transmission end cover 550.

[0040] In the embodiment, the output positioning recess 310 is arranged in the inner side of the power output end plate, the output transmission core shaft outer end extends into the output positioning recess, and is fixedly connected with the power output end plate, and the inner end extends to the adapter transmission core shaft direction.

[0041] In the embodiment, the output transmission core shaft outer wall is provided with an output positioning flange 560, the output positioning flange is abutted with the inner side of the power output end plate and is connected through a connecting piece, so that the power transmission core shaft is fixedly connected with the power output end plate, and the output transmission core shaft is axially positioned by the output positioning flange.

[0042] In the description of the utility model, it needs to explain, when the terms of indicating the orientation or position relationship such as "up", "down", "inner", "outer", "left", "right" appear, it should be understood that the orientation or position relationship shown in the drawing, or the orientation or position relationship that the utility model product is usually placed when using, or the orientation or position relationship that the person skilled in the art usually understands, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the equipment or element indicated must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as the limitation of the utility model.In addition, when the terms such as "first", "second" appear, only for distinguishing description, and cannot be understood as indicating or implying relative importance.In the description of the utility model, it also needs to explain that, unless otherwise explicitly specified and limited, the terms such as "installation", "setting", "connection" should be understood in a broad sense, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected;Can be mechanical connection, can also be electrical connection;Can be direct connection, can also be indirectly connected through intermediate medium, can be the intercommunication of two elements inside.The person skilled in the art can understand the specific meaning of the above terms in the utility model according to the specific circumstances.

Claims

1. A coupling with cross shaft joint structure, comprising: a power input end plate, which is engaged with a power input mechanism through a connecting piece; a power output end plate, which is in position correspondence with the power input end plate and is engaged with a power output mechanism through a connecting piece; characterized in that further comprising: a transfer transmission core plate, which is located between the power input end plate and the power output end plate; a pair of input transmission core shafts, each of which is installed in the power input end plate and is matched with the transfer transmission core plate through a spherical surface sliding bearing; a pair of output transmission core shafts, each of which is installed in the power output end plate and is matched with the transfer transmission core plate through a spherical surface sliding bearing, and the connecting lines between the output transmission core shafts and the connecting lines between the input transmission core shafts cross each other to form a cross structure.

2. The coupling with cross shaft joint structure according to claim 1, characterized in that: the transfer transmission core plate is provided with an input positioning through hole, the input positioning through hole is provided with an input transmission outer ring, the inner wall of the input transmission outer ring is provided with a spherical surface sliding contact surface, the outer end of the input transmission core shaft is provided with an input transmission inner ring, the outer wall of the input transmission inner ring is provided with a spherical surface sliding contact surface, and the input transmission inner ring is embedded in the input transmission outer ring and matched through the spherical surface sliding contact surface.

3. The coupling with cross shaft joint structure according to claim 2, characterized in that: the transfer transmission core plate is provided with an input transmission end ring on each side, the input transmission end ring extends along the circumference of the input positioning through hole, the outer edge of the input transmission end ring is engaged with the transfer transmission core plate, and the inner edge of the input transmission end ring is engaged with the input transmission outer ring; the outer wall of the input transmission core shaft is provided with an input transmission convex step, the outer end of the input transmission core shaft is provided with an input transmission end cover, and the two ends of the input transmission inner ring are respectively abutted with the input transmission convex step and the input transmission end cover.

4. The coupling with cross shaft joint structure according to claim 1, characterized in that: the inner side of the power input end plate is provided with an input positioning embedding opening, the outer end of the input transmission core shaft extends into the input positioning embedding opening and is fixedly connected with the power input end plate, and the inner end of the input transmission core shaft extends to the transfer transmission core plate.

5. The coupling with cross shaft joint structure according to claim 4, characterized in that: the outer wall of the input transmission core shaft is provided with an input positioning flange, the input positioning flange is abutted with the inner side of the power input end plate and is engaged through a connecting piece, so that the power transmission core shaft is fixedly connected with the power input end plate.

6. The coupling with cross shaft joint structure according to claim 1, characterized in that: the transfer transmission core plate is provided with an output positioning through hole, the output positioning through hole is provided with an output transmission outer ring, the inner wall of the output transmission outer ring is provided with a spherical surface sliding contact surface, the outer end of the output transmission core shaft is provided with an output transmission inner ring, the outer wall of the output transmission inner ring is provided with a spherical surface sliding contact surface, and the output transmission inner ring is embedded in the output transmission outer ring and matched through the spherical surface sliding contact surface.

7. The coupling with cross shaft joint structure according to claim 6, characterized in that: The output transmission end ring is arranged on both sides of the adapter transmission core plate, extends along the circumference of the output positioning through hole, and is connected with the adapter transmission core plate at the outer edge and the output transmission outer ring at the inner edge. The output transmission inner ring is connected with the output transmission convex step and the output transmission end cover at both ends.

8. The shaft coupling with the joint structure of the cross axle according to claim 1, characterized in that: The output positioning recess is arranged on the inner side of the power output end plate, the output transmission core shaft extends into the output positioning recess, and the inner end of the output transmission core shaft extends to the adapter transmission core shaft.

9. The shaft coupling with the joint structure of the cross axle according to claim 8, characterized in that: The output positioning flange is arranged on the outer wall of the output transmission core shaft, the output positioning flange is connected with the inner side of the power output end plate, and the output transmission core shaft is fixedly connected with the power output end plate through the connecting piece.

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