CN208764165U - A kind of ball and socket coupling - Google Patents

Abstract

The utility model discloses a kind of ball and socket couplings, including attachment base, the side of attachment base is connected with flexural pivot set, flexural pivot covers the side far from attachment base and is connected with positioning ball, connecting key is equipped between attachment base and positioning ball, and the both ends of connecting key are plugged in respectively on the lateral wall of attachment base and positioning ball, gland is fixedly installed on the lateral wall of connection seat both sides, multiple fastening bolts are inserted on the lateral wall of gland, it is equipped with washer between gland and attachment base, positions and active shaft connector and driven shaft connector is installed on the lateral wall of ball.In the utility model, driving shaft only can generate biggish friction with driving shaft connector sleeve, as long as therefore periodic replacement active shaft connector, it avoids replacing entire shaft coupling, production cost is saved, annular slab can reinforce the stability that driven shaft is connect with positioning ball, reduce the friction between positioning ball and driven shaft, active shaft connector and driven shaft connector are easy for assemble or unload, easy to operate.

Description

A kind of ball and socket coupling

Technical field

The utility model relates to shaft coupling technical field more particularly to a kind of ball and socket couplings.

Background technique

Shaft coupling refers to two axis of connection or axis and revolving meber, turns round together in passing movement and dynamic process, normal In the case of a kind of device for not disengaging, be also used to prevent coupled parts from bearing excessive load as a kind of safety device sometimes Lotus plays the role of overload protection, and drum coupling is a kind of novel flexible coupling, is mainly used for lifting machine in lifting equipment The reducer output shaft of structure couples with cable drum, is also applied for other similar not only transmitting torques but also bears radial load Mechanical equipment, but cannot act as the transmission for being subjected to axial load.

Through retrieving, China Patent No. CN207195478U discloses a kind of ball and socket coupling, including connecting support seat, ball Hinge sleeve, positioning ball, force-transmitting block and gland, the inner surface of connecting support seat are cylindrical surface, and the outer surface of flexural pivot set is cylindrical surface, and ball twists The inner surface of set is spherical surface, and flexural pivot set is clearance fit with connecting support seat and positioning ball, and connecting support seat and flexural pivot set are circle Cylinder clearance fit, flexural pivot set can axially move.

Existing ball and socket coupling has the following disadvantages: driving shaft and driven shaft are directly installed on positioning ball On inner sidewall, driving shaft and driven shaft can generate biggish friction with the inner sidewall of positioning ball during rotation, using certain Time after, the gap between driving shaft and driven shaft and positioning ball can all become larger, it is necessary to replacement positioning ball, and position ball not Easily replacement, it is necessary to new shaft coupling is used, so as to cause waste of material.

Utility model content

Purpose of the utility model is to solve the short problems of ball and socket coupling service life in the prior art, and A kind of ball and socket coupling proposed.

To achieve the goals above, the utility model adopts the technical scheme that

A kind of ball and socket coupling, including attachment base, the side of the attachment base are connected with flexural pivot set, the flexural pivot set Side far from attachment base is connected with positioning ball, and connecting key, and the both ends of connecting key are equipped between the attachment base and positioning ball It is plugged on the lateral wall of attachment base and positioning ball respectively, gland, institute is fixedly installed on the lateral wall of the connection seat both sides It states and is inserted with multiple fastening bolts on the lateral wall of gland, washer, the positioning ball are equipped between the gland and attachment base Lateral wall on active shaft connector and driven shaft connector are installed.

Preferably, the active shaft connector includes the mounting groove being provided on positioning ball lateral wall, the mounting groove Driving shaft connector sleeve is inside installed, the installation there are two limited block is symmetrically installed on the lateral wall of the driving shaft connector sleeve It is offered on the inner sidewall of slot and the mutually matched limiting slot of limited block.

Preferably, the driven shaft connector includes the driven shaft relief being provided on positioning ball lateral wall, described fixed Position ball is connected with annular slab, the lateral wall of the remotely located ball side of annular slab on the lateral wall of driven shaft relief side On be inserted with fastening screw, and fastening screw through annular slab and is plugged on the lateral wall of positioning ball.

Preferably, the mounting groove and driven shaft relief are respectively positioned at the axle center of positioning ball, and mounting groove and driven axial trough Mouth is interconnected.

Preferably, it is connected with driven shaft in the driven shaft relief, is uniformly provided with screw thread on the lateral wall of the driven shaft, It is offered on the inner sidewall of the annular slab and the intermeshing threaded hole of driven shaft.

Preferably, it is offered and the intermeshing threaded hole of fastening screw on the lateral wall of the positioning ball.

Compared with prior art, the utility model has the advantages that:

1, it positions and active shaft connector is installed on ball, in driving shaft rotation process, can only be produced with driving shaft connector sleeve Raw biggish friction, therefore only need to regularly replace active shaft connector, it avoids replacing entire shaft coupling, has saved and be produced into This；

2, annular slab is engaged with driven axle thread, and annular slab can reinforce the stability that driven shaft is connect with positioning ball, from And reduce driven shaft and position the relative motion between ball, reduce the friction between positioning ball and driven shaft；

3, active shaft connector and driven shaft connector are easy for assemble or unload, improve the reality of ball and socket coupling The property used.

Detailed description of the invention

Fig. 1 be the utility model proposes a kind of ball and socket coupling structural schematic diagram；

Fig. 2 be the utility model proposes a kind of ball and socket coupling part A structure enlarged drawing.

In figure: 1 attachment base, 2 flexural pivot sets, 3 positioning balls, 4 connecting keys, 5 glands, 6 fastening bolts, 7 washers, 8 mounting grooves, 9 Driving shaft connector sleeve, 10 limited blocks, 11 limiting slots, 12 driven shaft reliefs, 13 annular slabs, 14 fastening screws.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.

Referring to Fig.1-2, a kind of ball and socket coupling, including attachment base 1, the side of attachment base 1 are connected with flexural pivot set 2, Flexural pivot covers 2 sides far from attachment base 1 and is connected with positioning ball 3, connecting key 4 is equipped between attachment base 1 and positioning ball 3, and connect The both ends of key 4 are plugged in respectively on the lateral wall of attachment base 1 and positioning ball 3, are fixedly installed on the lateral wall of 1 two sides of attachment base Gland 5 is inserted with multiple fastening bolts 6 on the lateral wall of gland 5, and washer 7, the above knot are equipped between gland 5 and attachment base 1 Acting in the patent document that China Patent No. is CN207195478U for structure has been described in detail, and is not just repeated them here herein.

It positions and active shaft connector and driven shaft connector is installed on the lateral wall of ball 3.

Active shaft connector includes the mounting groove 8 being provided on positioning 3 lateral wall of ball, is equipped with actively in mounting groove 8 Axis connection set 9 is symmetrically installed on the lateral wall of driving shaft connector sleeve 9 there are two limited block 10, is opened up on the inner sidewall of mounting groove 8 Have with the mutually matched limiting slot 11 of limited block 10, in driving shaft rotation process, can only be generated with driving shaft connector sleeve 9 biggish Friction, therefore only need to regularly replace driving shaft connector sleeve 9, it avoids replacing entire shaft coupling, has saved production cost.

Driven shaft connector includes the driven shaft relief 12 being provided on positioning ball lateral wall, the driven axial trough of mounting groove 8 Mouth 12 is respectively positioned at the axle center of positioning ball 3, and mounting groove 8 and driven shaft relief 12 are interconnected, and driving shaft rotation is able to drive Position ball 3 and driven shaft rotation.

Positioning ball 3 is connected with annular slab 13 on the lateral wall of driven 12 side of shaft relief, connects in driven shaft relief 12 It is connected to driven shaft, screw thread is uniformly provided on the lateral wall of driven shaft, is offered on the inner sidewall of annular slab 13 mutual with driven shaft The threaded hole of engagement is inserted with fastening screw 14 on the lateral wall of remotely located 3 side of ball of annular slab 13, and fastening screw 14 passes through It wears annular slab 13 and is plugged on the lateral wall of positioning ball 3, position to offer on the lateral wall of ball 3 and mutually be nibbled with fastening screw 14 The threaded hole of conjunction rotates annular slab 13, and annular slab 13 is engaged with driven axle thread, until the lateral wall of annular slab 13 and positioning ball 3 lateral wall is in close contact, then is inserted into each fastening screw 14 respectively, and it is fixed driven shaft and annular slab 13 can be fixedly connected on On the ball 3 of position.

In the utility model, driving shaft is mounted in driving shaft connector sleeve 9, driving shaft connector sleeve 9 is inserted into mounting groove 8 It is interior, and two limited blocks 10 are inserted into two limiting slots 11 respectively, annular slab 13 is set on the lateral wall of driven shaft, it will Driven shaft is inserted into driven shaft relief 12, rotates annular slab 13, and annular slab 13 is engaged with driven axle thread, until annular slab 13 The lateral wall of lateral wall and positioning ball 3 is in close contact, then is inserted into each fastening screw 14 respectively, and driven shaft and annular slab 13 are consolidated Surely it is connected on positioning ball 3, driving shaft rotation can drive driven shaft to rotate.

The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims (6)

1. a kind of ball and socket coupling, including attachment base (1), it is characterised in that: the side of the attachment base (1) is connected with ball Hinge sleeve (2), the flexural pivot set (2) are connected with positioning ball (3), the attachment base (1) and positioning ball far from the side of attachment base (1) (3) connecting key (4) are equipped between, and the both ends of connecting key (4) are plugged in attachment base (1) respectively and position the lateral wall of ball (3) On, it is fixedly installed with gland (5) on the lateral wall of attachment base (1) two sides, is inserted on the lateral wall of the gland (5) Multiple fastening bolts (6) are equipped with washer (7) between the gland (5) and attachment base (1), on the lateral wall of positioning ball (3) Active shaft connector and driven shaft connector are installed.

2. a kind of ball and socket coupling according to claim 1, it is characterised in that: the active shaft connector includes The mounting groove (8) being provided on positioning ball (3) lateral wall, the mounting groove (8) is interior to be equipped with driving shaft connector sleeve (9), described There are two being symmetrically installed on the lateral wall of driving shaft connector sleeve (9) limited block (10), opened up on the inner sidewall of the mounting groove (8) Have and limited block (10) mutually matched limiting slot (11).

3. a kind of ball and socket coupling according to claim 2, it is characterised in that: the driven shaft connector includes The driven shaft relief (12) being provided on positioning ball lateral wall, positioning ball (3) is close to the outer of driven shaft relief (12) side It is connected on side wall annular slab (13), is inserted with fastening spiral shell on the lateral wall of the annular slab (13) remotely located ball (3) side It follows closely (14), and fastening screw (14) through annular slab (13) and is plugged on the lateral wall of positioning ball (3).

4. a kind of ball and socket coupling according to claim 3, it is characterised in that: the mounting groove (8) and driven shaft Notch (12) is respectively positioned at the axle center of positioning ball (3), and mounting groove (8) and driven shaft relief (12) are interconnected.

5. a kind of ball and socket coupling according to claim 3, it is characterised in that: connect in the driven shaft relief (12) Be connected to driven shaft, screw thread be uniformly provided on the lateral wall of the driven shaft, offered on the inner sidewall of the annular slab (13) with The intermeshing threaded hole of driven shaft.

6. a kind of ball and socket coupling according to claim 3, it is characterised in that: the lateral wall of positioning ball (3) On offer with fastening screw (14) intermeshing threaded hole.