CN101408229B

CN101408229B - Connection device between shafts

Info

Publication number: CN101408229B
Application number: CN2007101574304A
Authority: CN
Inventors: 凌学勤; 王振波
Original assignee: CNMC Shenyang Pump Co Ltd
Current assignee: CNMC Shenyang Pump Co Ltd
Priority date: 2007-10-12
Filing date: 2007-10-12
Publication date: 2010-06-02
Anticipated expiration: 2027-10-12
Also published as: CN101408229A

Abstract

A connecting device between axes relates to the improvement of the connecting device between the axes. The invention provides the connecting device between the axes, which can cause the size of the axial direction to be smaller and prolong the service life of the axes. The connecting device comprises two symmetrical half hitch bars, which has the structure key points that the half hitch bars are provided with a gland bush which can be fixed at the end of the axes; the gland bush is externally provided with a shaft housing of an internal spline which is provided with an external tooth and can be meshed with a spline shaft; the external tooth of the shaft housing is meshed with the internal tooth of an outer ring; a block rubber is arranged between the internal tooth of the outer ring and the external tooth of the shaft housing; and a bolt is used for fixing the outer ring and the inner ring.

Description

Coupling arrangement between the axle

Technical field:

The present invention relates to the improvement of the coupling arrangement between the axle.

Background technique:

Existing rigid coupling, pin coupler etc., two axial ends all is with key axle and half-coupling to be linked together, by straight mouthful of cooperation location of the convex-concave centering of two half-couplings; Then at the wheel rim place with bolt again two half-couplings altogether, thereby reach the purpose that connects the running use of axle and axle; The problem that exists with key connecting of this rigidity is:

1, very high to the coaxality requirement of diaxon, when having displacement and deflection to exist between the diaxon, be easy to produce vibration and in body, cause additional load, working condition is worsened, reduce working life;

2, owing to be key connecting, load is limited, seldom uses when driving torque is big;

3, the axle, the wheel hub shaft with key way to low precisions such as processing, pack into the back bad connection; Splined end stress is concentrated bigger on the axle, is easy to cause vibration and damage;

4, after two half-couplings put together on together, axial dimension was bigger; To three turn bent axle, the axle with spool connect after, make the super wide increasing of casing.

Summary of the invention:

The present invention is exactly at the problems referred to above, provides a kind of axial dimension that makes less, and can improve working life the axle between coupling arrangement.

For achieving the above object, the present invention adopts following technological scheme, the present invention includes half hitch bar of two symmetries, its structure outline is to have the gland that can be fixed in axle head on half hitch bar, gland is outward the axle sleeve of the internal spline that has external tooth and can be meshed with splined shaft, the outer rim of gland extends outwardly beyond the outer rim of splined shaft, and matches with the inboard of axle sleeve, and the external tooth of described axle sleeve is meshed with the internal tooth of outer shroud; Be provided with block rubber between the internal tooth of outer shroud and the external tooth of axle sleeve; Use bolt between outer shroud and the outer shroud.

Beneficial effect of the present invention:

1, can reduce axial dimension:

Because the present invention is connected by the same respectively splined shaft of internal spline, external tooth, the outer shroud of axle sleeve, link to each other between the axle then; Be connected with common key and compare, its intensity is big; Under the situation of transmitting same moment, the axial dimension of axle sleeve of the present invention and the axial dimension of corresponding component can be less; Being particularly useful for the three less axles that turn, turn more between (many fulcrums) bent axle, high pulling torque minor axis of between centers turns round connecting of parts with other with axle or axle;

2, improve working life:

Because the present invention is provided with block rubber between the external tooth of the internal tooth of outer shroud and axle sleeve, eliminate and slowed down impact, the noise of forward and backward generation, and to the damage of the flank of tooth, thereby the working life of having improved coupling arrangement of the present invention.

Description of drawings:

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the structural representation that axle sleeve of the present invention combines with outer shroud;

Fig. 3 is the I portion enlarged view of Fig. 2;

Fig. 4 shows axial error schematic representation of the present invention;

Fig. 5 shows radial error schematic representation of the present invention;

Fig. 6 shows angular displacement error schematic representation of the present invention;

Fig. 7 is a notes glycerine structural representation of the present invention;

Fig. 8 is an oil sump immersion oil structural representation of the present invention.

Embodiment:

The present invention includes half hitch bar 11 of two symmetries, has the gland 5 that can be fixed in axle 16 ends on half hitch bar 11, the outer axle sleeve 4 of gland 5 for the internal spline 8 that has external tooth 3 and can be meshed with splined shaft 7, the outer rim of gland 5 extends outwardly beyond the outer rim of splined shaft 7, and match with the inboard of axle sleeve 4, the external tooth 3 of described axle sleeve 4 is meshed with the internal tooth 2 of outer shroud 9; Be provided with block rubber 17 between the internal tooth 2 of outer shroud 9 and the external tooth 3 of axle sleeve 4; Fixing between outer shroud 9 and the outer shroud 9 with bolt 1.

The internal spline 8 of axle sleeve 4 adopts involute splines; Its advantage is:

1, the accuracy of manufacturing of involute splines is higher, good manufacturability, the contact rate height of tooth;

2, involute splines is with profile of tooth centering, is easy to centering, helps the even carrying of each tooth;

3, the installation that connects of involute inner spline 8 and splined shaft 7 has adopted detachable slight interference to cooperate, and it is contacted, and to reach no gap, does not have the purpose of the impact of rotating;

4, adopt knuckle-tooth root involute to connect, the root intensity height of tooth, stress is concentrated little, and driving torque is big.

The external tooth 3 of axle sleeve 4 is a crowned teeth; The internal tooth 2 of crowned teeth and outer shroud 9 is engaged with following advantage:

1, the internal tooth 2 of outer shroud 9 is little with the sideshake of the crowned teeth engagement of axle sleeve 4, thereby can satisfy the axial δ that regulates error that compensation casing axis hole (three fulcrums or many fulcrums) malalignment produces and crank shaft voluntarily and caused in installing and using, the error (seeing Fig. 4,5,6) that produces of b and angular displacement alpha radially;

2, the internal tooth 2 of outer shroud 9 is little with the sideshake of the crowned teeth engagement of axle sleeve 4, thus (forward and backward) produces when also having reduced running impact and noise;

3, coupling arrangement of the present invention has axial little gap, can regulate interaxis error voluntarily, more is applicable to the use between minor axis.

Can be provided with notes glycerine hole 13 by outer shroud 9, annotating 13 tops, glycerine hole is plug screw 12; Notes glycerine hole 13 communicates with external tooth 3 places of being meshed of axle sleeve 4 with the internal tooth 2 of outer shroud 9.Engagement place at the external tooth 3 of axle sleeve 4 and the internal tooth 2 of outer shroud 9 is outside equipped with baffle ring 15, prevents that booty from entering the flank of tooth; Baffle ring 15 is fixing with screw 14.When annotating glycerine, at first plug screw 12 is taken off, after annotating glycerine hole 13 injection glycerine, again plug screw 12 is tightened; Its glycerine springs up along backlash, reaches the effect of the lubricated flank of tooth.

Can be provided with horizontal oilhole 10 by axle sleeve 4; Laterally in the oil sump 18 of oilhole 10 between axle 16, because the rotation of coupling arrangement of the present invention, make flow of lubricant that horizontal oilhole 10 draws from oil sump 18 to the flank of tooth of the internal tooth 2 of the external tooth 3 of axle sleeve 4, outer shroud 9.

Below in conjunction with description of drawings once mounting process of the present invention:

At first, the axle 16 of pre-connection, the positions such as internal spline 8 of axle sleeve 4 are cleaned up, baffle ring 15 is put into axle 16 side outward; Internal spline 8 hole low-temperature heats with axle sleeve 4 make the base tangent length in internal spline 8 holes expand into desired location, ajust hot charging and put in place; After treating normal temperature, again the internal tooth 2 of outer shroud 9 by the sign contraposition install, with screw 14 fastening baffle ring 15, use simultaneously screw 6 with gland 5 fixed axle sleeves 4 on axle 16; Block rubber 17 is pressed into, this moment, half hitch bar 11 of axle 16 ends was all adorned again.By this same process, again other half hitch bar 11 of axle 16 end has all been adorned.With the bolt 1 in the articulation hole two and half hitch bars 11 are connected into one again, coupling arrangement of the present invention so just combination has been finished; If a plurality of axles 16 get final product by that analogy.

When coupling arrangement of the present invention turns round, be to drive axle sleeves 4 revolutions by a splined shaft 7, axle sleeve 4 drives outer shrouds 9 revolutions; Outer shroud 9 drives another outer shroud 9 revolutions by the bolt in the articulation hole 1, and outer shroud 9 drives axle sleeve 4 revolutions, and axle sleeve 4 drives another splined shaft 7 revolutions again.

Claims

The axle between coupling arrangement, half hitch bar (11) that comprises two symmetries, it is characterized in that having on half hitch bar (11) gland (5) that can be fixed in axle (16) end, the outer axle sleeve (4) of gland (5) for the internal spline (8) that has external tooth (3) and can same splined shaft (7) be meshed, the outer rim of gland (5) extends outwardly beyond the outer rim of splined shaft (7), and match with the inboard of axle sleeve (4), the internal tooth (2) of the same outer shroud of external tooth (3) (9) of described axle sleeve (4) is meshed; Be provided with block rubber (17) between the internal tooth (2) of outer shroud (9) and the external tooth (3) of axle sleeve (4); Fixing between outer shroud (9) and the outer shroud (9) with bolt (1).
2. the coupling arrangement between the axle according to claim 1 is characterized in that the internal spline (8) of axle sleeve (4) adopts involute splines.
3. the coupling arrangement between the axle according to claim 1 is characterized in that the external tooth (3) of axle sleeve (4) is crowned teeth.
4. the coupling arrangement between the axle according to claim 1 is characterized in that outer shroud (9) is provided with notes glycerine hole (13), and annotating top, glycerine hole (13) is plug screw (12).
5. the coupling arrangement between the axle according to claim 1 is characterized in that axle sleeve (4) is provided with horizontal oilhole (10).