CN2588118Y - Coupling - Google Patents

Abstract

The utility model relates to a coupling. The inner parts of two joints are provided with shaft holes with key ways, and the periphery is provided with a circular disc. When convex teeth on the circular discs of the two joint are engaged together, the vibration proof glue is remained between the convex teeth. A protective cover for covering the vibration proof glue is an end cover, and the end cover is sheathed on the two circular discs through one end of the joint to realize positioning by a convex post on the joint through the positioning hole on periphery thereof. The lower end of the convex post is positioned in a concave hole of the convex tooth on the joint and is connected with the bottom surface of the concave hole through a spring. Because the end cover is used as the protective cover of the vibration proof glue, the positioning hole on the upper part thereof is matched with the convex post on the joint to realize the positioning of the end cover. The circular discs on the two joints can be conveniently covered with the end cover or remove away the end cover, and the vibration proof glue between the two joints can be quickly changed with labor saving and time saving. The coupling has the advantages of simple structure, easy manufacture, low cost, and high safety and is suitable for the power transmission of various mechanical devices.

Description

Shaft joint

The utility model relates to a kind of connection set of transferring power, particularly a kind of shaft joint.

Being connected generally between the output shaft of dynamic power machine and the input shaft of work mechanism will be used shaft joint, realizes transferring power as the output shaft of motor and the input shaft of water pump by shaft joint.Shaft joint normally two joints is formed, two joints are one section hollow shaft, interior axis hole for the band keyway, periphery has a circle disk, be evenly equipped with at least two double wedges on the disk, two joints when engagement the double wedge X-bite on it together and anti-vibration rubber arranged between the double wedge, disk is provided with and hides the sheath that anti-vibration rubber is used, this sheath is located at the top of placing anti-vibration rubber between the joint upper raised teeth, edge along disk stretches out, sheath can cover in anti-vibration rubber and get final product, and output and input shaft are fixedly mounted on respectively in the axis hole of the strong groove of two laced belts.But the shaft joint of this structure has a very big shortcoming: because the anti-vibration rubber in the shaft joint weares and teares easily, need often to change, during replacing, need to remove output shaft or input shaft outward, promptly motor or water pump etc. will be removed so that the anti-vibration rubber that two joints separately just can renew, therefore, the disassembly process of changing anti-vibration rubber is very loaded down with trivial details, waste time and energy, for some big machinery devices, dismounting is just extremely difficult especially.

The purpose of this utility model is to provide a kind of and need not dismantle machinery for overcoming above-mentioned shortcoming, just can be fast, save time, laborsaving, change the shaft joint of anti-vibration rubber easily.

The purpose of this utility model can be achieved as follows: this shaft joint mainly comprises two joints, two joints are one section hollow shaft, interior axis hole for the band keyway, periphery has a circle disk, be evenly equipped with at least two double wedges on the disk, two joints when engagement the double wedge X-bite on it together and anti-vibration rubber arranged between the double wedge, disk is provided with and hides the sheath that anti-vibration rubber is used, it is characterized in that: described sheath is an end cap cylindraceous, the internal diameter of its lid mouth is consistent with the end cap internal diameter, the internal diameter of end cap is bigger than the external diameter of disk on the joint, at the bottom of the lid of end cap there be for the joint two ends by the then intransitable perforation of disk on it center portion, end cap is enclosed within on two disks and through positioning hole on its periphery and the projection on the joint through joint one end and realizes the location, the projection lower end places the shrinkage pool of joint upper raised teeth and is connected with the shrinkage pool bottom surface through spring again, and described anti-vibration rubber is wedge shape.

The utility model is owing to utilized the sheath of end cap as anti-vibration rubber, and cooperate the location of realizing end cap with projection on the joint with the positioning hole on it, can on the disk on two joints, put or remove end cap easily, thus can be fast, save time, change effortlessly the anti-vibration rubber between two joints.The manufacturing simple in structure, easy of this shaft joint, cost are low, safe and reliable, are well suited in the transmission of power of various machinery to use.

Below in conjunction with accompanying drawing the utility model is described in further detail:

Fig. 1 is the utility model shaft joint structural representation;

Fig. 2 is the A-A view of Fig. 1 in the utility model shaft joint;

Fig. 3 is the plan view of the joint of the utility model shaft joint;

Fig. 4 is that the B of Fig. 3 in the utility model shaft joint is to view.

In Fig. 1 and Fig. 2, show the schematic representation that two joints 1 and 2 connect a time-out, two joints 1 and 2 are equivalent to one section hollow shaft, interior for having the axis hole 10 of keyway 5, the periphery of two joints all has a circle disk 61,62, be evenly equipped with at least two double wedges 41,42 of the same size on the disk 61,62, the disk as shown in Fig. 3 and Fig. 4 on the joint is provided with three double wedges.Double wedge 41 on the disk 61 and double wedge 42 X-bites on the disk 62 are together, simultaneously be placed with anti-vibration rubber 3 between double wedge 41 and double wedge 42, each anti-vibration rubber is wedge shape, as axe-shape, anti-vibration rubber is compressed on the limit of just pressing double wedge between double wedge like this, makes things convenient for its installation.As the sheath that hides anti-vibration rubber 3 usefulness is an end cap 7 cylindraceous; the internal diameter of its lid mouth is consistent with the end cap internal diameter; the internal diameter of end cap is than disk on the joint 61; 62 external diameter is big; get final product slightly greatly; so that end cap disk 61 relatively; 62 can move freely; at the bottom of the lid of end cap there be for joint 41 center portion; 42 two ends by and disk 61 on it; 62 intransitable perforation; end cap is enclosed within on two disks through joint 42 1 ends; just anti-vibration rubber is hidden and protect; end cap again the projection 9 on the positioning hole on its periphery 8 and joint cooperate the location of realizing to end cap; the projection lower end places the shrinkage pool of joint upper raised teeth and is connected with the shrinkage pool bottom surface through spring again; projection is movable like this; overcome spring force; projection is with regard in the indentation shrinkage pool, and end cap just can be thrown off the disk on the joint, and is opposite; projection enters in the positioning hole under the spring force effect, plays positioning action.Therefore, by the dismounting of end cap, just can change anti-vibration rubber easily.

Claims (1)

1, a kind of shaft joint, mainly comprise two joints (1,2), two joints (1,2) be one section hollow shaft, interior axis hole (10) for band keyway (5), periphery has a circle disk (61,62), be evenly equipped with at least two double wedges (41 on the disk, 42), two joints when engagement the double wedge X-bite on it together and anti-vibration rubber (3) arranged between the double wedge, disk is provided with and hides the sheath that anti-vibration rubber is used, it is characterized in that: described sheath is end cap cylindraceous (7), the internal diameter of its lid mouth is consistent with the end cap internal diameter, the internal diameter of end cap is bigger than the external diameter of disk on the joint, at the bottom of the lid of end cap there be for the joint two ends by the then intransitable perforation of disk on it center portion, end cap is enclosed within on two disks and through positioning hole on its periphery (8) and the projection (9) on the joint through joint one end and realizes the location, the projection lower end places the shrinkage pool of joint upper raised teeth and is connected with the shrinkage pool bottom surface through spring again, and described anti-vibration rubber is wedge shape.

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