Quincunx coupling

Abstract

The utility model discloses a quincunx-shaped coupler which comprises a coupler shaft sleeve, shaft end outer teeth, a synchronizing wheel, a wheel end key groove, wheel end inner teeth, a spline cavity and a quincunx-shaped elastic body, the shaft end outer teeth are arranged on one end face of the coupler shaft sleeve in a protruding mode from the outer circumferential face in the axial direction, and the round wheel end key groove is coaxially formed in one end face of the synchronizing wheel. The inner wall of the wheel end key groove is provided with wheel end inner teeth, the coupler shaft sleeve is coaxially connected into the wheel end key groove through shaft end outer teeth, the wheel end inner teeth and the shaft end outer teeth jointly integrate an insertion gap between the coupler shaft sleeve and the synchronizing wheel into a spline cavity, and the spline cavity is filled with a quincunx-shaped elastic body. By means of the mode, the quincunx coupler has the advantages that the output end shaft sleeve is replaced by the synchronizing wheel to reduce the installation space of the coupler, and the concentricity of the shaft sleeve is corrected by additionally arranging the wheel end key groove, so that the transmission stability of the coupler is greatly improved, and the installation convenience of the coupler in a small space is effectively enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of coupling, especially a plum blossom coupling. BACKGROUND

[0002] CN 220646544 U discloses a plum blossom coupling, which is composed of a first half coupling and a second half coupling, and needs to be installed with two shaft bodies to realize transmission. In the transmission connection scene with a synchronous wheel, the first half coupling serves as an input end, and the second half coupling serves as an output end, both of which need to be connected to a motor and a synchronous wheel through the two shaft bodies, thereby causing a large occupation of the installation space. On the other hand, the plum blossom coupling disclosed in CN 220646544 U is found to have no corresponding structure designed between the first half coupling and the second half coupling to limit the concentricity of both when connected to the motor and the synchronous wheel for high-speed operation, so that the concentricity of both is misaligned when high-speed operation occurs, thereby causing a large amplitude of serious swing of the front and rear shaft bodies, greatly affecting the transmission accuracy of the synchronous wheel at the rear end. SUMMARY

[0003] The utility model mainly solves the technical problem to provide a plum blossom coupling, through the synchronous wheel to replace the output end shaft sleeve to reduce the coupling installation space, and add the wheel end key groove to correct the concentricity of the shaft sleeve, thereby greatly improving the transmission stability of the coupling, effectively enhancing the installation convenience of the coupling in small space.

[0004] To solve the above technical problems, one technical scheme of the utility model is provided: a plum blossom coupling, comprising a coupling shaft sleeve, a shaft end outer gear, a synchronous wheel, a wheel end key groove, a wheel end inner gear, a spline cavity, and a plum blossom elastic body, wherein an end surface of the coupling shaft sleeve is provided with the shaft end outer gear protruding from the outer circumferential surface in the axial direction, an end surface of the synchronous wheel is coaxially provided with a circular wheel end key groove, an inner wall of the wheel end key groove is provided with the wheel end inner gear, the coupling shaft sleeve is coaxially connected to the wheel end key groove through the shaft end outer gear, the wheel end inner gear and the shaft end outer gear jointly integrate the insertion gap between the coupling shaft sleeve and the synchronous wheel into a spline cavity, and the spline cavity is filled with the plum blossom elastic body.

[0005] In a preferred embodiment of the utility model, the plum blossom elastic body is composed of a middle shaft part and a petal part connected integrally.

[0006] In a preferred embodiment of the utility model, the shaft hole is arranged at the center of the coupling shaft sleeve, the middle shaft part is provided with an axial shaft position alignment groove opposite to the shaft hole, and the shaft position alignment groove is used to connect the shaft body inserted into the shaft hole.

[0007] In the utility model one preferable embodiment, the front and back of petal part is provided with the integrated pad, the pad is abutted on one end face of shaft sleeve or groove face of wheel end key groove, is used for inhibiting the axial movement in high speed rotation process and realizes the shock absorption.

[0008] In the utility model one preferable embodiment, the shaft end outer tooth at least has two and is about the axial center symmetry of shaft sleeve, the wheel end inner tooth at least has two and is about the axial center symmetry of synchronous wheel.

[0009] In the utility model one preferable embodiment, the edge of the two ends of synchronous wheel is provided with the deviation correction wheel brow about the wheel face oblique everted.

[0010] In the utility model one preferable embodiment, the plum blossom shape elastic body is respectively with wheel end inner tooth, shaft end outer tooth interference fit.

[0011] The utility model discloses a plum blossom shape coupling, by synchronous wheel to replace output end shaft sleeve to reduce the coupling installation space, and add wheel end key groove to correct the concentricity of shaft sleeve, to greatly improve the transmission stability of coupling, effectively enhance the installation convenience of coupling in small space. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will be needed to use the drawing in the embodiment description briefly introduces, obviously, the drawing in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, can also obtain other drawings according to these drawings, wherein:

[0013] Figure 1 It is the overall assembly structure diagram of the plum blossom shape coupling of the utility model;

[0014] Figure 2 It is the structure diagram of shaft sleeve;

[0015] Figure 3 It is the structure diagram of synchronous wheel;

[0016] Figure 4 It is the spline cavity structure diagram presented after cutting the upper half of shaft sleeve;

[0017] Figure 5 It is the assembly relationship structure diagram of plum blossom shape elastic body presented after cutting the upper half of shaft sleeve;

[0018] Figure 6 It is the explosion diagram. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below, obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the range protected by the utility model.

[0020] As shown in Figures 1-6 The utility model discloses in order to solve the problem of installation space occupation, only one shaft coupling sleeve is used to connect the motor, and the synchronous wheel is used to replace the second half coupling of prior art, and the installation space of output shaft body is saved, and the transmission path is changed, and the power is output from the wheel surface of synchronous wheel. Therefore, the installation space can be reduced by half. Therefore, the product can be effectively applied in narrow space environment.

[0021] Specifically, a plum blossom coupling is provided, comprising a shaft coupling sleeve 1, shaft end external teeth 2, a synchronous wheel 3, a wheel end key groove 4, wheel end internal teeth 5, a spline cavity 6, a plum blossom elastic body 7, an end face of the shaft coupling sleeve 1 is provided with the shaft end external teeth 2 protruding from an outer peripheral surface 8 in an axial direction, a wheel end key groove 4 in a circular shape is coaxially formed in an end face of the synchronous wheel 3, the wheel end internal teeth 5 are arranged on an inner wall of the wheel end key groove 4, the shaft coupling sleeve 1 is coaxially connected into the wheel end key groove 4 through the shaft end external teeth 2, the wheel end internal teeth 5 and the shaft end external teeth 2 jointly integrate the insertion gap between the shaft coupling sleeve 1 and the synchronous wheel 3 into the spline cavity 6, and the plum blossom elastic body 7 is filled in the spline cavity 6.

[0022] In addition, in order to further solve the problem of large amplitude swing caused by concentricity misalignment, the product limits the concentricity of the shaft coupling sleeve 1 through the inner wall of the wheel end key groove 4, and limits the concentricity of the shaft body on the shaft coupling sleeve 1 through the shaft position alignment groove on the plum blossom elastic body 7. On this basis, the clearance between parts is reduced by using interference fit. Through the above multi-dimensional adjustment and processing, the transmission stability of the front and rear ends of the product can be significantly improved.

[0023] Specifically, the plum blossom elastic body 7 is composed of a central shaft part 9 and a petal part 10 connected integrally.

[0024] Further, an axle hole 11 is arranged on the shaft center of the shaft coupling sleeve 1, the central shaft part 9 is provided with a shaft position alignment groove 12 coaxially opposite to the axle hole 11, and the shaft position alignment groove 12 is used to connect the shaft body connected into the axle hole 11.

[0025] Further, the front and rear surfaces of the petal part 10 are provided with integrally formed pad blocks 13, the pad blocks 13 abut on an end face of the shaft coupling sleeve 1 or a groove surface of the wheel end key groove 4, and are used to suppress axial movement in the process of high-speed rotation and realize shock absorption.

[0026] Further, the shaft end external teeth 2 are at least two and are symmetric about the center of the shaft sleeve 1, and the wheel end internal teeth 5 are at least two and are symmetric about the center of the synchronizing wheel 3.

[0027] Further, the edges of the two end faces of the synchronizing wheel 3 are provided with the deviation correcting wheel brows 14 which are tilted outward relative to the wheel face.

[0028] Further, the plum blossom elastic bodies 7 are respectively in interference fit with the wheel end internal teeth 5 and the shaft end external teeth 2.

[0029] The product is also matched with the internal hexagonal cylindrical screw 100 on the shaft sleeve 1, which is used for locking the input shaft body.

[0030] In summary, the plum blossom coupling is provided, the synchronizing wheel 3 is used to replace the output end shaft sleeve to reduce the coupling installation space, the wheel end key groove 4 is additionally arranged to correct the concentricity of the shaft sleeve, so that the transmission stability of the coupling is greatly improved, and the installation convenience of the coupling in the small space is effectively enhanced.

[0031] The above is only the embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation using the utility model specification content, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. A star coupler, characterized by, The utility model provides a coupling sleeve, shaft end outer tooth, synchronous wheel, wheel end key groove, wheel end inner tooth, spline cavity, plum blossom elastic body, one end of the coupling sleeve is provided with the shaft end outer tooth protruding from the outer circumferential surface along the axial direction, the one end of the synchronous wheel is coaxially provided with the circular wheel end key groove, the inner wall of the wheel end key groove is provided with the wheel end inner tooth, the coupling sleeve is connected into the wheel end key groove through the shaft end outer tooth, the wheel end inner tooth and the shaft end outer tooth integrate the insertion gap between the coupling sleeve and the synchronous wheel into a spline cavity, the spline cavity is filled with the plum blossom elastic body.

2. The spider coupling of claim 1, wherein The plum blossom elastic body is composed of a middle shaft part and a petal part which are connected integrally.

3. The spade coupler according to claim 2, characterized in that The shaft hole is arranged on the shaft center of the coupling sleeve, the middle shaft part is provided with the shaft position alignment groove which is coaxial with the shaft hole, and the shaft position alignment groove is used for connecting the shaft body which is inserted into the shaft hole.

4. The spade coupler according to claim 2, characterized in that The front and back surfaces of the petal part are provided with the integrally formed pad blocks, the pad blocks are abutted on the one end surface of the coupling sleeve or the groove surface of the wheel end key groove, and the pad blocks are used for inhibiting the axial movement in the high-speed rotating process and achieving the shock absorption.

5. The spade coupler according to claim 1, wherein The shaft end outer tooth is at least two and is symmetrical about the shaft center of the coupling sleeve, and the wheel end inner tooth is at least two and is symmetrical about the shaft center of the synchronous wheel.

6. The spade coupler according to claim 1, wherein The edges of the two end surfaces of the synchronous wheel are provided with the deviation correction wheel brows which are inclined and everted outwardly relative to the wheel surface.

7. The spade coupler according to claim 1, wherein The plum blossom elastic body is in interference fit with the wheel end inner tooth and the shaft end outer tooth respectively.

Images