Elastic coupling

Abstract

The utility model discloses a elastic coupling. Including two groups of joint shaft sleeve, the joint shaft sleeve is used for connecting the pivot, be provided with cross slider between the joint shaft sleeve, the both ends of cross slider are with the end portion sliding connection of joint shaft sleeve respectively, the end face of cross slider is close to the joint shaft sleeve and is equipped with sliding assembly, sliding assembly with joint shaft sleeve sliding connection, sliding assembly is used for reducing the friction between joint shaft sleeve and cross slider. The utility model reaches through the installation of two groups of joint shaft sleeve in the end portion of pivot, in the pivot rotation, through the cooperation of cross slider, make two pivots not on the same axis rotate, simultaneously under the cooperation of sliding assembly, make the sliding friction between cross slider and joint shaft sleeve convert into rolling friction, can guarantee transmission accuracy and reduce the wear and tear of cross slider, prolong the service life of coupling, reduce the cost of maintenance.

Description

Technical Field

[0001] This utility model specifically relates to an elastic coupling. Background Technology

[0002] A coupling is a device that connects two shafts or a shaft and a rotating component, allowing them to rotate together during the transmission of motion and power, and not to disengage under normal circumstances.

[0003] When two shafts are not on the same central axis, the cross slider can connect the two shafts and transmit torque. However, due to the reciprocating movement between the cross slider and the bushing, the cross slider wears due to the continuous friction between them. The clearance between the cross slider and the bushing gradually increases, which reduces the relative position accuracy of the two shafts during transmission and makes it impossible to guarantee accurate coaxiality, thus affecting the accuracy of the entire transmission system. Utility Model Content

[0004] Purpose of the utility model: To provide a flexible coupling that solves the above-mentioned problems existing in the prior art.

[0005] Technical solution: A flexible coupling includes two sets of coupling sleeves for connecting a rotating shaft. A cross slider is installed between the coupling sleeves, and both ends of the cross slider are slidably connected to the ends of the coupling sleeves. A sliding component is provided on the end face of the cross slider near the coupling sleeve. The sliding component is slidably connected to the coupling sleeve and is used to reduce the friction between the coupling sleeve and the cross slider.

[0006] Preferably, each set of coupling sleeves has a mounting groove at the end away from the cross slider, and a keyway is provided on the inner wall of the mounting groove. The keyway communicates with the mounting groove, and the mounting groove and the keyway cooperate to install the rotating shaft. A slot is provided at the end of the coupling sleeve near the cross slider, and a portion of the cross slider is slidably inserted into the slot.

[0007] Preferably, the cross slider includes a sliding post, and a single-slider is provided on each of the two ends of the sliding post. The single-sliders located at both ends of the sliding post are perpendicular to each other, and the single-slider is slidably inserted into the end of the coupling sleeve.

[0008] Preferably, both the sliding column and the linear slider are made of elastic material.

[0009] Preferably, the sliding component includes a plurality of arc-shaped grooves, the arc-shaped grooves are arranged in a rectangular array at the end of the cross slider, and a ball is slidably installed in each set of arc-shaped grooves. A part of the ball protrudes from the opening of the arc-shaped groove, and a part of the ball is slidably connected to the end of the coupling sleeve.

[0010] Preferably, the sphere is made of a metallic material.

[0011] Beneficial effects: This utility model relates to an elastic coupling, which installs two sets of coupling sleeves at the ends of a rotating shaft. During the rotation of the shaft, the two rotating shafts that are not on the same axis are rotated by the cooperation of the cross slider. At the same time, with the cooperation of the sliding component, the sliding friction between the cross slider and the coupling sleeve is converted into rolling friction. This can ensure transmission accuracy while reducing the wear of the cross slider, extending the service life of the coupling, and reducing maintenance costs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the sliding component of this utility model; Figure 3 This is an exploded view of the overall structure of this utility model.

[0013] Figures 1 to 3 The reference numerals in the attached diagram are: 1. Coupling sleeve; 2. Cross slider; 3. Sliding assembly; 4. Mounting slot; 5. Keyway; 6. Slotted groove; 21. Sliding column; 22. Single-slide block; 31. Arc groove; 32. Sphere. Detailed Implementation

[0014] like Figures 1 to 3 As shown, this utility model provides a technical solution: an elastic coupling, including two sets of coupling sleeves 1, the coupling sleeves 1 are used to connect a rotating shaft, a cross slider 2 is installed between the coupling sleeves 1, each set of coupling sleeves 1 has an installation groove 4 at the end away from the cross slider 2, the inner wall of the installation groove 4 has a keyway 5, the keyway 5 communicates with the installation groove 4, the installation groove 4 and the keyway 5 cooperate to install the rotating shaft, the end of the coupling sleeve 1 near the cross slider 2 has a slot 6, a portion of the cross slider 2 is slidably inserted into the slot 6, both ends of the cross slider 2 are slidably connected to the ends of the coupling sleeve 1, a sliding component 3 is provided on the end face of the cross slider 2 near the coupling sleeve 1, the sliding component 3 is slidably connected to the coupling sleeve 1, under the action of the sliding component 3, the sliding friction between the coupling sleeve 1 and the cross slider 2 is converted into rolling friction, extending the service life of the coupling and reducing maintenance costs.

[0015] In a further embodiment, the cross slider 2 includes a sliding post 21, and each end face of the sliding post 21 is provided with a single-slider 22. Both the sliding post 21 and the single-slider 22 are made of elastic material. The single-slider 22 located at both ends of the sliding post 21 are perpendicular to each other. The single-slider 22 is slidably inserted into the end of the coupling sleeve 1. The sliding assembly 3 includes a plurality of arc-shaped grooves 31. The arc-shaped grooves 31 are arranged in a rectangular array at the end of the sliding post 21. A ball 32 is slidably installed in each set of arc-shaped grooves 31. A part of the ball 32 protrudes from the opening of the arc-shaped groove 31. A part of the ball 32 is slidably connected to the end of the coupling sleeve 1. The ball 32 is made of metal material. That is, when the single-slider 22 is inserted into the single-slider 6, the surface of the ball 32 contacts the end face of the coupling sleeve 1, converting the sliding friction between the cross slider 2 and the coupling sleeve 1 into rolling friction.

[0016] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A flexible coupling, characterized in that, It includes two sets of coupling sleeves (1), which are used to connect the rotating shaft. A cross slider (2) is installed between the coupling sleeves (1). The two ends of the cross slider (2) are slidably connected to the ends of the coupling sleeves (1). A sliding component (3) is provided on the end face of the cross slider (2) near the end face of the coupling sleeve (1). The sliding component (3) is slidably connected to the coupling sleeve (1). The sliding component (3) is used to reduce the friction between the coupling sleeve (1) and the cross slider (2).

2. The flexible coupling according to claim 1, characterized in that, Each set of coupling sleeves (1) has an installation groove (4) at the end away from the cross slider (2). The inner wall of the installation groove (4) has a keyway (5). The keyway (5) communicates with the installation groove (4). The installation groove (4) and the keyway (5) cooperate to install the rotating shaft. The end of the coupling sleeve (1) near the cross slider (2) has a slot (6). A portion of the cross slider (2) is slidably inserted into the slot (6).

3. The flexible coupling according to claim 1, characterized in that, The cross slider (2) includes a sliding column (21), and two end faces of the sliding column (21) are respectively provided with a single slider (22). The single sliders (22) located at both ends of the sliding column (21) are perpendicular to each other, and the single sliders (22) are slidably inserted into the end of the coupling sleeve (1).

4. The flexible coupling according to claim 3, characterized in that, Both the sliding column (21) and the linear slider (22) are made of elastic material.

5. The flexible coupling according to claim 1, characterized in that, The sliding component (3) includes several arc-shaped grooves (31), which are arranged in a rectangular array at the end of the cross slider (2). A ball (32) is slidably installed in each set of arc-shaped grooves (31). A part of the ball (32) protrudes from the opening of the arc-shaped groove (31), and a part of the ball (32) is slidably connected to the end of the coupling sleeve (1).

6. The flexible coupling according to claim 5, characterized in that, The sphere (32) is made of metal.

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