CN208816649U - The power takeoff being easily installed - Google Patents

Abstract

A kind of power takeoff being easily installed, including main casing, shaft, mounting flange, sliding sleeve and fork component, mounting flange is connected to the first end of shaft, sliding sleeve is sheathed on the periphery of the second end of shaft, the inside of the main casing is additionally provided with roller bearing, the periphery at the middle part of the shaft is also radially projecting to be equipped with positioning convex ring, positioning convex ring is abutted from side with the inner sidewall of main casing or roller bearing, the fork component includes fork, fork axis and fork shell, the first end of fork is connect with sliding sleeve, second end is sheathed on the first end of fork axis, the outer perimeter wall of the end of second end of the sliding sleeve far from shaft is equipped with card slot, the first end of fork is located in card slot, sliding sleeve is equipped with groove close to the end of the second end of shaft, internal spline is equipped in groove, internal spline is equipped on the end face of the opening of groove Angle.So avoidable internal spline or external splines damage prevent shaft axial movement, are easily installed.

Description

The power takeoff being easily installed

Technical field

The utility model relates to power takeoff field, especially a kind of power takeoff being easily installed.

Background technique

The power of postposition power takeoff is obtained by internal spline from outer drive shaft, and outer drive shaft drives sliding sleeve rotation, sliding Set drives the rotation of power takeoff shaft, and shaft drives ring flange rotation output.The internal spline of existing postposition power takeoff and external drive When the external splines connection of moving axis, needing strictly to be aligned could be connected, and otherwise may cause internal spline or external splines damage, while Cause the installation effectiveness of power takeoff lower.In addition shaft is mounted in power takeoff shell may generate movement in the axial direction, right The installation and work of power takeoff interfere.

Utility model content

In view of this, the present invention provides a kind of avoidable internal spline or external splines damage, prevent shaft from axially moving The power takeoff move, being easily installed, to solve the above problems.

A kind of power takeoff being easily installed, including main casing, shaft, mounting flange, sliding sleeve and fork component, the main casing Through spindle through-hole is equipped on body, shaft is located in spindle through-hole, and mounting flange is connected to the first end of shaft, and sliding sleeve is sheathed on The periphery of the second end of shaft, the inside of the main casing and be located at spindle through-hole in the middle part of be additionally provided with roller bearing, institute The periphery for stating the middle part of shaft is also radially projecting equipped with positioning convex ring, inner sidewall of the positioning convex ring from side and main casing Or roller bearing abuts, the fork component includes fork, fork axis and fork shell, is offered in fork shell logical with main shaft The L shape accommodation groove of hole connection, L shape accommodation groove have opening far from one end of spindle through-hole, and fork and fork axle position are described in L and set In slot, the first end of fork is connect with sliding sleeve, and second end is sheathed on the first end of fork axis, and the second end of fork axis is located at opening The outer perimeter wall at place, the end of second end of the sliding sleeve far from shaft is equipped with card slot, and the first end of fork is located in card slot, Sliding sleeve is equipped with groove close to the end of the second end of shaft, is equipped with internal spline in groove, internal spline is at the end of the opening of groove Face is equipped with chamfering.

Further, the second end of the shaft has also been provided projectingly support shaft, and the outside of support shaft is rotatably connected to rolling Needle bearing, the diameter of support shaft are less than the diameter of shaft.

Further, the mounting flange is far from the first groove is additionally provided in the middle part of the end face of shaft, and shaft is close to Method for Installation Blue end face is equipped with thread groove, is equipped with connecting plate and screw in the first groove, and the first of the outside of connecting plate and mounting flange The inner sidewall of groove connects, and the middle part of connecting plate is equipped with through-hole, and screw passes through the through-hole of connecting plate and the thread groove with shaft It is threadedly coupled.

Further, the mounting flange is additionally provided with the housing extended towards main casing, housing close to the side of main casing End be flexibly connected with main casing or roller bearing, and between the end and main casing of housing be equipped with oil sealing unit.

Further, sealing ring is additionally provided between the connecting plate and the inner sidewall of the first groove.

Further, the fork component further includes reset spring, protrudes outward to form bulge loop in the middle part of fork axis, is resetted Spring pocket is set to the middle part of fork axis, and the first end of reset spring is abutted with bulge loop far from the side of opening, second end and fork The inner sidewall of shell abuts.

Further, the fork axis is additionally provided with oil sealing unit between the position and fork shell of opening.

Compared with prior art, the power takeoff being easily installed of the utility model, including main casing, shaft, mounting flange, Sliding sleeve and fork component, through spindle through-hole is equipped on the main casing, shaft is located in spindle through-hole, and mounting flange is connected to The first end of shaft, sliding sleeve are sheathed on the periphery of the second end of shaft, the inside of the main casing and are located at spindle through-hole Middle part be additionally provided with roller bearing, the periphery at the middle part of the shaft is also radially projecting to be equipped with positioning convex ring, convex Ring is abutted from side with the inner sidewall of main casing or roller bearing, and the fork component includes fork, fork axis and fork shell, The L shape accommodation groove being connected to spindle through-hole is offered in fork shell, L shape accommodation groove has far from one end of spindle through-hole to be opened Mouthful, in L shape accommodation groove, the first end of fork is connect with sliding sleeve for fork and fork axle position, and second end is sheathed on the of fork axis One end, the second end of fork axis are located at opening, and the outer perimeter wall of the end of second end of the sliding sleeve far from shaft is equipped with The first end of card slot, fork is located in card slot, and sliding sleeve is equipped with groove close to the end of the second end of shaft, is equipped with interior flower in groove Key, internal spline are equipped with chamfering on the end face of the opening of groove.So avoidable internal spline or external splines damage prevent shaft It moves axially, be easily installed.

Detailed description of the invention

The embodiments of the present invention are described below in conjunction with attached drawing, in which:

Fig. 1 is the stereoscopic schematic diagram of the power takeoff provided by the utility model being easily installed.

Fig. 2 is the side sectional view of the power takeoff provided by the utility model being easily installed.

Specific embodiment

Specific embodiment of the utility model is further elaborated below based on attached drawing.It should be understood that The explanation of the utility model embodiment is not used to herein to limit the protection scope of the utility model.

Referring to FIG. 1, its be the power takeoff provided by the utility model being easily installed, including main casing 110, shaft 120, Mounting flange 121, sliding sleeve 140 and fork component 130.

Through spindle through-hole is equipped on main casing 110, shaft 120 is located in spindle through-hole, and mounting flange 121, which is connected to, to be turned The first end of axis 120, sliding sleeve 140 are sheathed on the periphery of the second end of shaft 120.The second end of shaft 120 also protrusion is set It is equipped with support shaft 122, the diameter of support shaft 122 is less than the diameter of shaft 120, and the outside of support shaft 122 is rotatably connected to needle roller Bearing 150.Sliding sleeve 140 can slide axially with respect to shaft 120, but can not rotate relative to shaft 120.

The inside of main casing 110 and it is located in the middle part of spindle through-hole and is additionally provided with roller bearing 123, in main casing 110 It is interior that shaft 120 is supported.

The periphery at the middle part of shaft 120 is also radially projecting to be equipped with positioning convex ring 124, and positioning convex ring 124 is from side It is abutted with the inner sidewall of main casing 110 or roller bearing 123.

Mounting flange 121 is far from the first groove 125 is additionally provided in the middle part of the end face of shaft 120, and shaft 120 is close to mounting flange 121 end face is equipped with thread groove, and connecting plate 126 and screw 127 are equipped in the first groove 125, and connecting plate 126 is circle, Periphery is connect with the inner sidewall of the first groove 125 of mounting flange 121, and middle part is equipped with through-hole, and screw 127 passes through connection The through-hole of plate 126 is simultaneously threadedly coupled with the thread groove of shaft 120, so that mounting flange 121 is fixed in shaft 120.

Mounting flange 121 is additionally provided with the housing 129 extended towards main casing 110, housing close to the side of main casing 110 129 end is flexibly connected with main casing 110 or roller bearing 123, and is equipped between the end of housing 129 and main casing 110 Oil sealing unit 160.Housing 129 is abutted from two sides with roller bearing 123 or main casing 110 respectively with positioning convex ring 124, is realized and is turned Positioning in 120 axial direction of axis, can prevent shaft 120 to be axially moveable.

Sealing ring 128, oil sealing unit 160, connecting plate are additionally provided between connecting plate 126 and the inner sidewall of the first groove 125 126 and sealing ring 128 be used to prevent outflow of lubrication oil in main casing 110.

Fork component 130 includes fork 131, fork axis 132, reset spring 133 and fork shell 134.Fork shell 134 The L shape accommodation groove being connected to spindle through-hole is inside offered, L shape accommodation groove has opening 135, fork far from one end of spindle through-hole 131 and fork axis 132 be located in L shape accommodation groove, the first end of fork 131 is connect with sliding sleeve 140, and second end is sheathed on fork axis The second end of 132 first end, fork axis 132 is located at opening 135.The second end of fork axis 132 is connect with outer inside casing.

The middle part of fork axis 132 protrudes outward to form bulge loop 137, and reset spring 133 is sheathed on the middle part of fork axis 132, The first end of reset spring 133 is abutted with bulge loop 137 far from the side of opening 135, the inner sidewall of second end and fork shell 134 It abuts.Reset spring 133 makes fork axis 132 maintain a predetermined position, in the position when, sliding sleeve 140 and outer drive shaft Engagement.Outer inside casing can drive fork axis 132 and fork 131 to be axially moveable, so that the axially opposed shaft of sliding sleeve 140 120, so that sliding sleeve 140 and outer drive shaft are detached from.

Fork axis 132 is additionally provided with oil sealing unit 136 between the position and fork shell 134 of opening 135, prevents fork Outflow of lubrication oil in shell 134.

The outer perimeter wall of the end of second end of the sliding sleeve 140 far from shaft 120 be equipped with card slot 141, the first of fork 131 End is located in card slot 141, and sliding sleeve 140 is equipped with groove close to the end of the second end of shaft 120, is equipped with internal spline 142 in groove, Internal spline 142 on the end face of the opening of groove be equipped with chamfering 143, chamfering 143 convenient for outer drive shaft external splines with it is interior The engagement of spline 142 cooperation, installation and connection etc., are correspondingly provided with chamfering, such external splines touches interior flower on the end face of external splines It when the chamfering 143 of key 142, can be slid into internal spline 142 along chamfering 143, so avoidable internal spline 142 or external splines damage Installation bad, convenient for external splines and internal spline 142, improves installation effectiveness.

In present embodiment, main casing 110 and fork shell 134 are all made of high-strength aluminum alloy die casting, strong using height Forging method manufacture fork 131, work 100 hours or more of sustainable 1000 torque (N.M).Shaft 120 uses carburizing steel 20CRMNTI, integrated carrying torque is up to 1500N.M.

Compared with prior art, the power takeoff being easily installed of the utility model, including main casing, shaft, mounting flange, Sliding sleeve and fork component, through spindle through-hole is equipped on the main casing, shaft is located in spindle through-hole, and mounting flange is connected to The first end of shaft, sliding sleeve are sheathed on the periphery of the second end of shaft, the inside of the main casing and are located at spindle through-hole Middle part be additionally provided with roller bearing, the periphery at the middle part of the shaft is also radially projecting to be equipped with positioning convex ring, convex Ring is abutted from side with the inner sidewall of main casing or roller bearing, and the fork component includes fork, fork axis and fork shell, The L shape accommodation groove being connected to spindle through-hole is offered in fork shell, L shape accommodation groove has far from one end of spindle through-hole to be opened Mouthful, in L shape accommodation groove, the first end of fork is connect with sliding sleeve for fork and fork axle position, and second end is sheathed on the of fork axis One end, the second end of fork axis are located at opening, and the outer perimeter wall of the end of second end of the sliding sleeve far from shaft is equipped with The first end of card slot, fork is located in card slot, and sliding sleeve is equipped with groove close to the end of the second end of shaft, is equipped with interior flower in groove Key, internal spline are equipped with chamfering on the end face of the opening of groove.So avoidable internal spline or external splines damage prevent shaft It moves axially, be easily installed.

The above is only the preferred embodiments of the utility model, are not used to the limitation protection scope of the utility model, any Modification, equivalent replacement or improvement within the spirit of the present invention etc. are all covered in the scope of the claims of the utility model.

Claims (7)

1. a kind of power takeoff being easily installed, it is characterised in that: including main casing, shaft, mounting flange, sliding sleeve and fork group Part, through spindle through-hole is equipped on the main casing, shaft is located in spindle through-hole, and mounting flange is connected to the first of shaft End, sliding sleeve are sheathed on the periphery of the second end of shaft, the inside of the main casing and middle part for being located at spindle through-hole is also set Have a roller bearing, the periphery at the middle part of the shaft is also radially projecting to be equipped with positioning convex ring, positioning convex ring from side with The inner sidewall or roller bearing of main casing abut, and the fork component includes fork, fork axis and fork shell, in fork shell Offer the L shape accommodation groove being connected to spindle through-hole, L shape accommodation groove has an opening far from one end of spindle through-hole, fork and pulls out Fork shaft is located in L shape accommodation groove, and the first end of fork is connect with sliding sleeve, and second end is sheathed on the first end of fork axis, fork axis Second end be located at opening, the outer perimeter wall of the end of second end of the sliding sleeve far from shaft is equipped with card slot, fork First end is located in card slot, and sliding sleeve is equipped with groove close to the end of the second end of shaft, is equipped with internal spline in groove, internal spline exists The end face of the opening of groove is equipped with chamfering.

2. the power takeoff being easily installed as described in claim 1, it is characterised in that: the second end of the shaft is also provided projectingly There is support shaft, the outside of support shaft is rotatably connected to needle bearing, and the diameter of support shaft is less than the diameter of shaft.

3. the power takeoff being easily installed as described in claim 1, it is characterised in that: end face of the mounting flange far from shaft Middle part is additionally provided with the first groove, and shaft is equipped with thread groove close to the end face of mounting flange, be equipped in the first groove connecting plate and Screw, the inner sidewall connection of first groove in the outside and mounting flange of connecting plate, and the middle part of connecting plate is equipped with through-hole, screw Across connecting plate through-hole and be threadedly coupled with the thread groove of shaft.

4. the power takeoff being easily installed as claimed in claim 3, it is characterised in that: the mounting flange close to main casing one Side is additionally provided with the housing extended towards main casing, and the end of housing is flexibly connected with main casing or roller bearing, and the end of housing Oil sealing unit is equipped between end and main casing.

5. the power takeoff being easily installed as claimed in claim 3, it is characterised in that: the inside of the connecting plate and the first groove Sealing ring is additionally provided between wall.

6. the power takeoff being easily installed as described in claim 1, it is characterised in that: the fork component further includes resetting bullet Spring protrudes outward to form bulge loop in the middle part of fork axis, and reset spring is sheathed on the middle part of fork axis, the first end of reset spring with Bulge loop is abutted far from the side of opening, and second end is abutted with the inner sidewall of fork shell.

7. the power takeoff being easily installed as claimed in claim 6, it is characterised in that: the fork axis close to opening position with Oil sealing unit is additionally provided between fork shell.