Coupling

Abstract

The coupler comprises a main sleeve and an auxiliary sleeve, the main sleeve and the auxiliary sleeve are fixedly connected through a plurality of bolts, key grooves are formed in inner cavities of the main sleeve and the auxiliary sleeve, and a first groove and a second groove are formed in the connecting ends of the main sleeve and the auxiliary sleeve respectively. Clamping blocks are arranged in the first groove and the second groove, a plurality of limiting grooves are formed in the flange edge of the main sleeve, limiting blocks matched with the limiting grooves are integrally formed on the auxiliary sleeve, and the limiting blocks can be inserted into inner cavities of the limiting grooves. The utility model relates to the technical field of couplings, according to the coupler, through the design of the clamping blocks, the shafts with straight slots can be clamped with the clamping blocks, when the driving shaft and the driven shaft are clamped with the clamping blocks at the same time, the transmission efficiency of the two shafts is improved, and meanwhile, under the occlusion of the limiting grooves and the limiting blocks, the situation that the two shafts are damaged after long-time transmission is avoided. Therefore, not only is the transmission precision improved, but also the service life of the coupling is further prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of couplings, in particular to a coupling. Background Art

[0002] A coupling is a mechanical transmission device used to connect two shafts and transmit torque. It typically consists of two main components: the coupling body and the connecting shaft. Some couplings also absorb and cushion mechanical vibration and shock, protecting the equipment from damage. Current rigid couplings primarily consist of two sleeves and several bolts. While these couplings offer a simple structure and relatively low manufacturing cost, the two sleeves are typically secured solely by bolts, making the bolts susceptible to bending and deformation during power transmission. Furthermore, the sleeves typically rely on a single keyed connection to the rotating shaft, which can easily lead to key fatigue and damage. To address these issues, we propose a coupling that addresses these issues. Utility Model Content

[0003] In order to solve the above problems, that is, to solve the problems raised by the above background technology, the utility model proposes a coupling, including a main sleeve and a secondary sleeve, the main sleeve and the secondary sleeve are fixedly connected by a plurality of bolts, the inner cavities of the main sleeve and the secondary sleeve are both provided with keyways, and the connecting ends of the main sleeve and the secondary sleeve are respectively provided with groove one and groove two, and blocks are provided in the groove one and groove two. The flange edge of the main sleeve is provided with a plurality of limit grooves, and the secondary sleeve is integrally formed with a limit block adapted to the limit groove, and the limit block can be inserted into the inner cavity of the limit groove.

[0004] Preferably, the inner cavities of the main sleeve and the auxiliary sleeve are each provided with two keyways, and the two keyways are provided correspondingly.

[0005] The beneficial technical effect of the utility model is that the coupling can connect the shaft with a straight groove with the clamping block through the design of the clamping block. When the driving shaft and the driven shaft are clamped with the clamping block at the same time, the transmission efficiency of the two shafts is improved. At the same time, under the engagement of the limit groove and the limit block, the deformation of the bolts after long-term transmission of the two shafts is avoided, thereby not only improving the transmission accuracy, but also further increasing the service life of the coupling. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 Shown is a schematic cross-sectional structural diagram of the present invention.

[0007] Figure 2 The side view of the main sleeve of the present invention is shown.

[0008] Figure 1: Main sleeve; 2: Auxiliary sleeve; 3: Bolt; 4: Keyway; 5: Groove 1; 6: Groove 2; 7: Block; 8: Limiting groove; 9: Limiting block. DETAILED DESCRIPTION

[0009] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0010] When the driving shaft and the driven shaft are simultaneously engaged with the block 7, the transmission efficiency of the two shafts is improved. The flange edge of the main sleeve 1 is provided with a plurality of limiting grooves 8, and the limiting blocks 9 that are adapted to the limiting grooves 8 are integrally formed on the secondary sleeve 2. The limiting blocks 9 can be inserted into the inner cavity of the limiting grooves 8. Under the bite of the limiting grooves 8 and the limiting blocks 9, deformation of the bolts 3 is avoided after long-term transmission of the two shafts, thereby not only improving the transmission accuracy but also further improving the service life of the coupling.

[0011] Specifically, there are two keyways 4 in the inner cavities of the main sleeve 1 and the auxiliary sleeve 2, and the two keyways 4 are arranged correspondingly. This design requires two matching cam keys to be designed on the shaft, which can ensure that the coupling is evenly stressed.

[0012] Working Principle: This coupling is suitable for shafts with double convex keys and slots on the end faces. The main sleeve 1 and the secondary sleeve 2 are separated by removing the bolts 3. The main sleeve 1 is then placed on the outer wall of the driving shaft so that the convex key on the outer wall of the driving shaft can enter the inner wall of the keyway 4. At the same time, the slot on the end face of the driving shaft is aligned with the slot 1 5. At this time, the clamping block 7 is inserted into the inner cavity of the slot and the slot 1 5. The driven shaft is then inserted into the secondary sleeve 2 in the same manner. The main sleeve 1 and the secondary sleeve 2 are connected, and the limit groove 8 and the limit block 9 are correspondingly inserted. Finally, the main sleeve 1 and the secondary sleeve 2 are fixedly connected with the bolts 3 to complete the installation. When the driving shaft rotates to drive the driven shaft, the clamping block 7 can cooperate with the slot to cause the main sleeve 1, the secondary sleeve 2, the driving shaft and the driven shaft to rotate synchronously, thereby improving the transmission accuracy. In the bite state of the limit groove 8 and the limit block 9, the bolt 3 is prevented from being deformed by the driving of the driving shaft.

[0013] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and components may be substituted with equivalents without departing from the scope of the present invention. In particular, the various technical features described in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions within the scope of the claims.

[0014] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These are merely for ease of description and are not intended to indicate or imply that the device or component described must have a specific orientation, be constructed, or operate 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.

[0015] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0016] The term "comprise" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed or inherent to such process, article, or apparatus / device.

[0017] Thus far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art may make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will fall within the scope of protection of the present invention.

Claims

1. A coupling, comprising a main sleeve (1) and a secondary sleeve (2), wherein the main sleeve (1) and the secondary sleeve (2) are fixedly connected by a plurality of bolts (3), and the inner cavities of the main sleeve (1) and the secondary sleeve (2) are both provided with keyways (4), characterized in that: A groove 1 (5) and a groove 2 (6) are respectively provided inside the connecting ends of the main sleeve (1) and the auxiliary sleeve (2), and a clamping block (7) is provided in the groove 1 (5) and the groove 2 (6). A plurality of limiting grooves (8) are provided on the flange edge of the main sleeve (1), and a limiting block (9) adapted to the limiting groove (8) is integrally formed on the auxiliary sleeve (2), and the limiting block (9) can be inserted into the inner cavity of the limiting groove (8).

2. A coupling according to claim 1, characterized in that: The main sleeve (1) and the auxiliary sleeve (2) are both provided with two key slots (4) in their inner cavities, and the two key slots (4) are provided correspondingly.

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