CN217898708U

CN217898708U - Taper sleeve clamping belt pulley

Info

Publication number: CN217898708U
Application number: CN202222149653.9U
Authority: CN
Inventors: 刘海珍; 欧小庆; 杨耀; 卢聪
Original assignee: KUNSHAN JIANGJIN MACHINERY CO Ltd
Current assignee: KUNSHAN JIANGJIN MACHINERY CO Ltd
Priority date: 2022-08-16
Filing date: 2022-08-16
Publication date: 2022-11-25
Anticipated expiration: 2032-08-16

Abstract

The utility model belongs to the technical field of the belt pulley is made, specifically be a tight belt pulley of taper sleeve clamp, including the wheel body, the coaxial connect-through hole that is equipped with on the wheel body, connect-through hole's internal surface projection on the plane A at the axis place of wheel body is first waist trapezoidal, the coaxial axle erector that is equipped with in the connect-through hole, the projection of the outer periphery of axle erector on the plane B at the common place of axis of axle erector is waist trapezoidal such as the second, waist trapezoidal such as first waist trapezoidal and second is equal, the axle erector passes through propelling movement locking device and connect-through hole fixed connection, the propelling movement direction of propelling movement locking device is towards waist trapezoidal topside such as the second, how can dismantle fixed connection's problem between belt pulley and the transmission shaft has been solved.

Description

Taper sleeve clamping belt pulley

Technical Field

The utility model belongs to the technical field of the belt pulley is made, specifically a tight belt pulley of taper sleeve clamp.

Background

The belt pulley is a part for connecting the transmission shaft with the belt in a transmission connection mode, so that the belt pulley is relatively static with the transmission shaft in the rotating process, the transmission shaft or the belt pulley is convenient to replace under the condition of damage, the belt pulley is detachably connected with the transmission shaft, the belt pulley and the transmission shaft are not required to be replaced together under the condition of damage, and the cost can be saved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at prior art's shortcoming, the adoption sets up the mode that the connect the through-hole on axle erector and the wheel body adopted the toper to cup joint cooperation propelling movement locking device, has designed a detachable belt pulley, can make the cooperation between transmission shaft and the connect the through-hole more and more tight in the in-process that runs through the drive shaft in the connect the through-hole, has solved how can dismantle fixed connection's problem between belt pulley and the transmission shaft.

In order to realize the purpose, the following technical scheme is adopted:

the utility model provides a taper sleeve clamping belt pulley, includes the wheel body, the coaxial connecting hole that is equipped with on the wheel body, connecting hole's internal surface is in projection on the plane A at the axis place of wheel body is waist trapezoid first waiting, the coaxial axle erector that is equipped with in the connecting hole, the projection of the outer periphery of axle erector on the plane B at the axis place of axle installer is waist trapezoid second waiting, waist trapezoid first waiting and waist trapezoid second waiting are congruent, the axle erector pass through propelling movement locking device with connecting hole fixed connection, propelling movement locking device's propelling movement direction orientation waist trapezoid second waiting top edge.

Preferably, the shaft installer is an annular connecting wheel, the projection of the outer circumferential surface of the connecting wheel on the plane B where the central axis and the radius of the connecting wheel are located together is a second isosceles trapezoid, the first isosceles trapezoid, the second isosceles trapezoid and the like, the connecting wheel is provided with a notch, and the inner surface of the connecting wheel is provided with notches communicated with the two end surfaces of the connecting wheel.

Preferably, the pushing locking device comprises a bolt, a first connecting hole and a second connecting hole, the inner circumferential surface of the connecting through hole is provided with the first connecting hole with a part of a circle in cross section, the outer circumferential surface of the connecting wheel is provided with the second connecting hole with a part of a circle in cross section, the radii of the first connecting hole and the second connecting hole are equal, the axis of the first connecting hole is parallel to the axis of the wheel body, the axis of the second connecting hole is parallel to the axis of the connecting wheel, the inner surface of the first connecting hole is provided with a left thread, the inner surface of the second connecting hole is provided with a right thread which is symmetrical to the left thread, and the thread on the bolt is a left thread; when the installer is installed on the wheel body, the first connecting hole and the second connecting hole form a hole, and the semicircular opening directions of the first connecting hole and the second connecting hole respectively face to the bottom edges of the first isosceles trapezoid and the second isosceles trapezoid.

Preferably, the number of the first connecting holes is at least 2, the first connecting holes are distributed on the inner circumferential surface of the connecting through holes at equal intervals around the central axis of the connecting through holes, the number of the second connecting holes is at least 2, the second connecting holes are distributed on the outer circumferential surface of the connecting wheel at equal intervals around the central axis of the connecting wheel, and a gap is preset between each second connecting hole and the corresponding notch.

Preferably, the hole formed by combining the first connecting hole and the second connecting hole is a blind hole.

Preferably, the wheel further comprises a sleeve wheel, the connecting through hole is coaxially formed in the sleeve wheel, the wheel body is a circular ring, and the outer circumferential surface of the sleeve wheel is fixedly connected with the inner circumferential surface of the wheel body through a supporting rod.

Preferably, a belt groove is coaxially arranged on the outer circumferential surface of the wheel body.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up the mode that connect hole on axle erector and the wheel body adopted the toper to cup joint cooperation propelling movement locking device, designed a detachable belt pulley, can make the cooperation between transmission shaft and the connect hole more and more tight at the in-process that runs through the transmission shaft to connect hole in, solved how with the problem that can dismantle fixed connection between belt pulley and the transmission shaft.

2. The utility model discloses when using, in the connecting wheel was inserted to the transmission shaft coaxial, the breach of setting was in order to be can contract by the interior circumferential surface extruded in-process of connect the through-hole at the outer periphery of connecting wheel to make the periphery of the internal surface extrusion transmission shaft of connecting wheel.

3. The utility model discloses set up the hole that first connecting hole and second connecting hole combination formed into the blind hole, after setting up like this for at the downthehole back that the bolt precession first connecting hole and second connecting hole combination formed, just airtight the hole, this in the through-hole is the mode, and it is downthehole to set up like this and to avoid air or dust to enter into first connecting hole and second connecting hole combination formation, thereby corrodes the bolt.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a schematic view of the bolted connection between the wheel and the wheel body;

FIG. 4 is a projection of the fifth wheel on plane B;

fig. 5 is a projection of the connection via on the plane a.

Wherein, 1, the wheel body; 2. a connecting through hole; 3. a plane A; 4. a plane B; 5. a notch; 6. a notch; 7. a bolt; 8. a first connection hole; 9. a second connection hole; 10. a left thread; 11. a right thread; 12. a support bar; 13. sleeving a wheel; 14. a belt groove; 15. and (4) connecting the wheels.

Detailed Description

Referring to fig. 1-5, a taper sleeve clamping belt pulley comprises a pulley body 1, a connecting through hole 2 is coaxially arranged on the pulley body 1, the projection of the inner surface of the connecting through hole 2 on a plane A3 where a central axis of the pulley body 1 is located is a first isosceles trapezoid, a shaft installer is coaxially arranged in the connecting through hole 2, the projection of the outer circumferential surface of the shaft installer on a plane B4 where the central axis of the shaft installer is a second isosceles trapezoid, the first isosceles trapezoid and the second isosceles trapezoid are congruent, the shaft installer is fixedly connected with the connecting through hole 2 through a pushing locking device, and the pushing direction of the pushing locking device faces the top edge of the second isosceles trapezoid.

In this embodiment, when in use, the shaft mounting device is fixed on the transmission shaft (not shown in the figure), then the shaft mounting device is coaxially mounted in the connection through hole 2, since the projection of the outer circumferential surface of the shaft mounting device on the plane B4 where the central axis of the shaft mounting device is located is the second isosceles trapezoid (as shown in fig. 4), the projection of the inner surface of the connection through hole 2 on the plane A3 where the central axis of the wheel body 1 is located is the first isosceles trapezoid (as shown in fig. 5), and the first isosceles trapezoid and the second isosceles trapezoid are congruent, after this arrangement, in the process that the pushing locking device pushes and locks the shaft mounting device to the small end of the connection through hole 2, the fit between the outer surface of the shaft mounting device and the inner surface of the connection through hole 2 becomes tighter and tighter, so that the shaft mounting device is firmly mounted on the wheel body 1, in the process of dismounting, it is only necessary to push the shaft mounting device to the large end of the connection through hole 2, and then the shaft is taken out of the connection through hole 2, that the transmission shaft and the inner circumferential surface of the transmission shaft mounting device and the inner circumferential surface of the transmission shaft are firmly connected with the outer circumferential surface of the inner circumferential surface of the connection through hole 2, and the connection through hole 2, so that the connection mounting device is firmly fixed.

As a preferable mode, the shaft mounting device is an annular connecting wheel 15, projections of the outer circumferential surface of the connecting wheel 15 on a plane B4 where a central axis and a radius of the connecting wheel 15 are located together are a second isosceles trapezoid, the first isosceles trapezoid, the second isosceles trapezoid and the like, a notch 5 is formed in the connecting wheel 15, and notches 6 communicating two end surfaces of the connecting wheel 15 are formed in the inner surface of the connecting wheel 15. In this embodiment, the driving shaft is coaxially inserted into the coupling wheel 15 in use, and the notch 5 is provided to be contracted during the process in which the outer circumferential surface of the coupling wheel 15 is pressed by the inner circumferential surface of the coupling through-hole 2, so that the inner surface of the coupling wheel 15 presses the circumferential surface of the driving shaft.

As a preferable mode, the push locking device includes a bolt 7, a first connecting hole 8 and a second connecting hole 9, the inner circumferential surface of the connecting through hole 2 is provided with the first connecting hole 8 with a partial circular cross section, the outer circumferential surface of the connecting wheel 15 is provided with the second connecting hole 9 with a partial circular cross section, the first connecting hole 8 and the second connecting hole 9 have the same radius, the axis of the first connecting hole 8 is parallel to the axis of the wheel body 1, the axis of the second connecting hole 9 is parallel to the axis of the connecting wheel 15, the inner surface of the first connecting hole 8 is provided with a left thread 10, the inner surface of the second connecting hole 9 is provided with a right thread 11 symmetrical to the left thread 10, and the thread on the bolt 7 is the left thread 10; when the mounter is mounted on the wheel body 1, the first connection hole 8 and the second connection hole 9 constitute a hole, and semicircular opening directions of the first connection hole 8 and the second connection hole 9 are respectively towards the bottom sides of the first isosceles trapezoid and the second isosceles trapezoid.

When the bolt 7 is arranged in the second connecting hole 9, the bolt 7 is firstly placed in the second connecting hole 9, the end part of the left thread 10 at the tip of the bolt 7 is positioned in the thread pitch of the right thread 11 of the second connecting hole 9, and then the bolt 7 and the connecting wheel 15 are inserted into the connecting through hole 2 together; then, the bolt 7 is screwed into the first connection hole 8, and the connecting wheel 15 can be brought into the connection through hole 2 in the process that the bolt 7 is screwed into the first connection hole 8, as shown in fig. 3, during the rotation process (the rotation direction is the direction a in fig. 3) of the top end of the left thread 10 at the tip of the bolt 7, the line contacts the point a of the right thread 11 in the second connection hole 9, and then the top end of the left thread 10 at the tip of the bolt 7 contacts the point B of the right thread 11 in the second connection hole 9, during this process, the left thread 10 in the first connection hole 8 has a movement tendency in the direction F3, while the movement direction of the bolt 7 is F1, the movement direction of the connecting wheel 15 is F2, and the directions of F1 and F2 are the same, so that the connecting wheel 15 is brought into the connection through hole 2 in the process that the bolt 7 is screwed into the first connection hole 8, so that the interaction force between the inner surface of the connection through hole 2 and the outer surface of the connecting wheel 15 is increased, and the transmission shaft and the pulley are firmer.

Preferably, the number of the first connection holes 8 is at least 2, and the first connection holes are equidistantly distributed around the central axis of the connection through hole 2 on the inner circumferential surface of the connection through hole 2, the number of the second connection holes 9 is at least 2, and the second connection holes are equidistantly distributed around the central axis of the connection wheel 15 on the outer circumferential surface of the connection wheel 15, and a gap is preset between the second connection holes 9 and the gap 5, so that the connection wheel 15 is uniformly stressed, and local deformation of the connection wheel is avoided. Preferably, 6 first connection holes 8 and 6 second connection holes 9 are provided.

Preferably, the hole formed by combining the first connection hole 8 and the second connection hole 9 is a blind hole, so that the hole is sealed after the bolt 7 is screwed into the hole formed by combining the first connection hole 8 and the second connection hole 9, and compared with the way of the through hole, the arrangement can prevent air or dust from entering the hole formed by combining the first connection hole 8 and the second connection hole 9, so as to corrode the bolt 7.

As a preferable mode, the wheel further comprises a sleeve wheel 13, the connecting through hole 2 is coaxially arranged on the sleeve wheel 13, the wheel body 1 is a circular ring, and the outer circumferential surface of the sleeve wheel 13 is fixedly connected with the inner circumferential surface of the wheel body 1 through a support rod 12. The weight of the belt pulley can be reduced and energy can be saved. Because the energy of the drive device driving the transmission shaft can be consumed less.

In a preferred mode, a belt groove 14 is coaxially arranged on the outer circumferential surface of the wheel body 1. The belt groove 14 is provided to prevent the belt from slipping and moving on the circumferential surface of the pulley body 1.

Claims

1. The utility model provides a taper sleeve presss from both sides tight belt pulley, its characterized in that includes wheel body (1), coaxial connecting through hole (2) that is equipped with on wheel body (1), the internal surface of connecting through hole (2) is in the projection on the plane A (3) at the axis place of wheel body (1) is first waist trapezoidal, coaxial being equipped with axle erector in connecting through hole (2), the projection of the outer periphery of axle erector on plane B (4) at the axis place of axle erector is waist trapezoidal such as the second, waist trapezoidal such as first waist trapezoidal and second waist trapezoidal congruent, the axle erector through propelling movement locking device with connecting through hole (2) fixed connection, propelling movement locking device's propelling movement direction orientation waist trapezoidal topside such as the second.

2. The taper sleeve clamping belt pulley according to claim 1, wherein the shaft mounting device is an annular connecting wheel (15), a projection of an outer circumferential surface of the connecting wheel (15) on a plane B (4) where a central axis and a radius of the connecting wheel (15) are located together is a second isosceles trapezoid, the first isosceles trapezoid, the second isosceles trapezoid and the like are provided, the connecting wheel (15) is provided with a notch (5), and a notch (6) communicating two end surfaces of the connecting wheel (15) is provided on an inner surface of the connecting wheel (15).

3. The taper sleeve clamping belt pulley according to claim 2, wherein the pushing locking device comprises a bolt (7), a first connecting hole (8) and a second connecting hole (9), the inner circumferential surface of the connecting through hole (2) is provided with the first connecting hole (8) with a part of a circle in cross section, the outer circumferential surface of the connecting wheel (15) is provided with the second connecting hole (9) with a part of a circle in cross section, the radii of the first connecting hole (8) and the second connecting hole (9) are equal, the axis of the first connecting hole (8) is parallel to the axis of the pulley body (1), the axis of the second connecting hole (9) is parallel to the axis of the connecting wheel (15), the inner surface of the first connecting hole (8) is provided with a left thread (10), the inner surface of the second connecting hole (9) is provided with a right thread (11) which is symmetrical to the left thread (10), and the thread on the bolt (7) is the left thread (10); when the installer is installed on the wheel body (1), the first connecting hole (8) and the second connecting hole (9) form a hole, and the semicircular opening directions of the first connecting hole (8) and the second connecting hole (9) respectively face to the bottom edges of the first isosceles trapezoid and the second isosceles trapezoid.

4. A taper sleeve clamping pulley according to claim 3, characterized in that said first connecting holes (8) are provided in at least 2 and are equally distributed around the central axis of said connecting through hole (2) on the inner circumferential surface of said connecting through hole (2), said second connecting holes (9) are also provided in at least 2 and are equally distributed around the central axis of said connecting wheel (15) on the outer circumferential surface of said connecting wheel (15), and a predetermined gap is provided between said second connecting holes (9) and said notch (5).

5. A taper sleeve clamping pulley according to claim 3, characterized in that the holes formed by the combination of the first connecting hole (8) and the second connecting hole (9) are blind holes.

6. The taper sleeve clamping pulley according to any one of claims 1 to 5, further comprising a sleeve wheel (13), wherein the connecting through hole (2) is coaxially arranged on the sleeve wheel (13), the pulley body (1) is a circular ring, and the outer circumferential surface of the sleeve wheel (13) is fixedly connected with the inner circumferential surface of the pulley body (1) through a support rod (12).

7. A taper sleeve clamping pulley according to claim 5, characterized in that a belt groove (14) is coaxially provided on the outer circumferential surface of the pulley body (1).