CN214780444U - Double-layer concave guide wheel device - Google Patents

Abstract

The utility model discloses a concave guide pulley device of bilayer, the concave guide pulley device of bilayer include first guide pulley, link firmly in second guide pulley, first stay cord, second stay cord, connecting axle, rotatable coupling in of first guide pulley the locking piece, the cover of connecting axle are located first bearing, second bearing and the joint spare of connecting axle. The first guide wheel is sleeved and connected with the first bearing, and the first pull rope is wound on the first guide wheel. The second guide wheel is sleeved and connected with the second bearing, and the second pull rope is wound on the second guide wheel. The locking piece with the centre gripping space has between the joint spare, the joint spare is along with the rotation of connecting axle is adjusted the interval in centre gripping space. The first guide wheel and the second guide wheel rotate synchronously, so that the stretching amount and the pulling force of the first pull rope and the second pull rope are amplified or reduced in proportion, physical characteristics such as special movement and stress are realized, and the use convenience is improved.

Description

Double-layer concave guide wheel device

Technical Field

The utility model belongs to the technical field of the connection technique and specifically relates to a concave guide pulley device of double-deck is related to.

Background

The product is an important component in lean management, wherein the flexible semi-automatic system realizes one of accessories with special functions. Wherein, flexible semi-automatic system disposes elevating system, and elevating system is provided with rope and pulley, and the rope is around locating the pulley to drive the object and go up and down. However, the existing lifting mechanism is provided with a fixed pulley and/or a movable pulley, so that the requirement on installation space is high, the structure corresponding to the change of the conveying length of the rope is complex, and the physical characteristics such as special movement, stress and the like are difficult to realize, so that improvement is needed.

Disclosure of Invention

The utility model aims at providing a concave guide pulley device of double-deck.

The utility model discloses the first aspect of the technical scheme who adopts is: the utility model provides a concave guide pulley device of double-deck, include first guide pulley, link firmly in the second guide pulley of first guide pulley, first stay cord, second stay cord, connecting axle, rotatable coupling in the locking piece, the cover of connecting axle are located the first bearing, the second bearing and the joint spare of connecting axle, first guide pulley cover establish connect in first bearing, first stay cord convolute in first guide pulley, second guide pulley cover establish connect in the second bearing, the second stay cord convolute in the second guide pulley, the locking piece with the centre gripping space has between the joint spare, the joint spare along with the rotation of connecting axle is adjusted the interval in centre gripping space.

In one embodiment, the first guide wheel and the second guide wheel are detachably connected; or, the first guide wheel and the second guide wheel are integrally formed.

In one embodiment, the outer diameter of the first guide wheel is larger than the outer diameter of the second guide wheel.

In an embodiment, the locking member abuts against the first bearing or the second bearing.

In an embodiment, the locking member includes a clamping portion, a pushing portion intersecting with the clamping portion, and a through mounting hole, the minimum outer diameter of the pushing portion is smaller than the minimum outer diameter of the clamping portion, and the pushing portion abuts against the first bearing or the second bearing.

In one embodiment, the cross-sectional dimension of the pushing portion gradually decreases from one end to a direction away from the clamping portion.

In an embodiment, the connecting shaft further comprises a sleeve frame sleeved on the connecting shaft, and two ends of the sleeve frame are respectively abutted to the first bearing and the second bearing.

In one embodiment, the clamping member includes a sliding portion, a connecting portion partially protruding from the sliding portion, and a spiral portion penetrating through the connecting portion, the connecting shaft is spirally connected to the spiral portion, and the clamping space is formed between the sliding portion and the locking member.

In an embodiment, the peripheral wall of the sliding portion is provided with a chamfer, which is directed away from the connecting portion.

In an embodiment, the sliding rail further comprises a sliding rail, the sliding rail is provided with a sliding groove, and the clamping member is slidably connected to the sliding groove and clamps and locks a groove wall of the sliding groove with the locking member.

After the structure is adopted, compared with the prior art, the utility model the advantage that has is: the first guide wheel and the second guide wheel rotate synchronously, so that the stretching amount and the pulling force of the first pull rope and the second pull rope are amplified or reduced in proportion, physical characteristics such as special movement and stress are realized, and the use convenience is improved. The double-layer concave guide wheel device is clamped, locked and installed through the locking piece and the clamping piece, the installation mode and the installation position are flexible, and the required installation space is small.

Drawings

The invention will be further described with reference to the following figures and examples:

fig. 1 is a schematic perspective view of a double-layer concave guide wheel device with a first guide wheel close to a slide rail according to the present invention.

Fig. 2 is a schematic perspective view of a double-layer concave guide wheel device with a second guide wheel close to a slide rail according to the present invention.

Fig. 3 is an exploded schematic view of the double-layer concave guide wheel device of the present invention.

Fig. 4 is a schematic structural view of the double-layer concave guide wheel device of the present invention.

Fig. 5 is a schematic structural view of the first guide wheel and the second guide wheel of the present invention formed integrally.

Fig. 6 is a schematic structural view of the clip of the present invention.

In the figure; a connecting shaft 10; a first bearing 11; a second bearing 12; a sleeve mount 13; a first guide wheel 20; a second guide wheel 30; a first pull cord 40; a second draw string 50; a locking member 60; a snap-in portion 61; a pushing part 62; mounting holes 63; a clip member 70; a slide portion 71; a connecting portion 72; the spiral portion 73; a chamfer 74; a slide rail 80; the slide groove 81.

Detailed Description

The following description is only a preferred embodiment of the present invention, and does not limit the scope of the present invention.

An embodiment, as shown in fig. 1 to 3, the utility model discloses a double-deck concave guide wheel device, double-deck concave guide wheel device include first guide wheel 20, link firmly in second guide wheel 30, first stay cord 40, second stay cord 50, connecting axle 10 of first guide wheel 20, rotatable coupling in the locking piece 60 of connecting axle 10, the cover is located the first bearing 11, the second bearing 12 and the joint 70 of connecting axle 10. The first guide pulley 20 is sleeved and connected to the first bearing 11, and the first pull rope 40 is wound around the first guide pulley 20. The second guide pulley 30 is sleeved and connected to the second bearing 12, and the second pull rope 50 is wound around the second guide pulley 30. The locking piece 60 and the clamping piece 70 have a clamping space therebetween, and the clamping piece 70 adjusts the distance of the clamping space along with the rotation of the connecting shaft 10.

The first guide pulley 20 and the second guide pulley 30 are coaxially disposed to achieve synchronous rotation with respect to the connecting shaft 10. The first guide wheel 20 and the second guide wheel 30 are connected to the connecting shaft 10, so that torque force received by the first guide wheel and the second guide wheel is transmitted to the connecting shaft 10, and convenience in installation is improved. The first pull rope 40 is wound around the first guide wheel 20, the second pull rope 50 is wound around the second guide wheel 30, accordingly, the first pull rope 40 and one of the first pull rope and the second pull rope are driven by external power and move telescopically, and the other one of the first pull rope and the second pull rope realizes synchronous telescopic movement. For example, the first pull rope 40 drives the first guide wheel 20 to rotate under the action of external force, and then the first guide wheel 20 drives the second guide wheel 30 to rotate, so that the second pull rope 50 correspondingly stretches, and the synchronous stretching operation of the first pull rope 40 and the second pull rope 50 is realized. Alternatively, if the first cord 40 and the second cord 50 are wound in the same direction, the first cord 40 is wound and contracted, and the second cord 50 is wound and contracted synchronously, or vice versa. Alternatively, if the first cord 40 and the second cord 50 are wound in opposite directions, the first cord 40 is wound and contracted, and the second cord 50 is extended, whereas if the first cord 40 is extended, the second cord 50 is wound and contracted. The first guide wheel 20 and the second guide wheel 30 rotate synchronously, so that the stretching amount and the pulling force of the first pull rope 40 and the second pull rope 50 are proportionally enlarged or reduced, physical characteristics such as special movement and stress are realized, and the use convenience is improved.

Locking piece 60 and joint piece 70 interval set up and connect respectively in connecting axle 10, wherein, connecting axle 10 rotates for locking piece 60, distance between with regulation locking piece 60 and joint piece 70, so that locking piece 60 and joint piece 70 can the centre gripping lock in on the equipment or the material frame of the required installation of double-deck concave guide wheel device, thereby realize the installation and the fixing of double-deck concave guide wheel device, first stay cord 40 and second stay cord 50 can be connected to the moving object of required connection respectively, in order to carry out corresponding removal. The double-layer concave guide wheel device is clamped, locked and installed through the locking piece 60 and the clamping piece 70, the installation mode and the installation position are flexible, and the needed installation space is small.

As shown in fig. 1, 2 and 5, the first guide wheel 20 and the second guide wheel 30 are detachably connected, the first guide wheel 20 and the second guide wheel 30 are separately processed, and the two are fixed into a whole by combining modes such as inserting fit, clamping positioning and fastener locking. In this embodiment, the first guide wheel 20 and the second guide wheel 30 are separately processed and combined and connected, so that free combination of different transmission ratios can be realized, and convenience in use can be improved. In another embodiment, the first guide wheel 20 and the second guide wheel 30 are integrally formed, so that the first guide wheel 20 and the second guide wheel 30 are integrally combined, the structural strength is high, the processing efficiency is high, and the matching performance is good. Optionally, each of the first guide wheel 20 and the second guide wheel 30 is provided with a rib to limit the moving range of the rope.

The first guide wheel 20 and the second guide wheel 30 rotate coaxially, wherein the ratio of the expansion amount of the first pull rope 40 and the second pull rope 50 can be adjusted by adjusting the ratio of the outer diameters of the first guide wheel 20 and the second guide wheel 30. For example, if the first guide pulley 20 and the second guide pulley 30 are provided with the same diameter, the first rope 40 and the second rope 50 extend and contract by the same amount. If the diameter of the first guide pulley 20 around which the first cord 40 is wound is twice the diameter of the second guide pulley 30 around which the second cord 50 is wound, the length of the first cord 40 is twice the length of the second cord 50. Accordingly, the moment arm of the first idler 20 is twice the moment arm of the second idler 30. In one embodiment, the outer diameter of the first guide wheel 20 is larger than that of the second guide wheel 30, so as to adjust different extension lengths and winding force arms of the rope in the double-layer concave guide wheel device. Optionally, the ratio of the outer diameter of the first guide wheel 20 to the outer diameter of the second guide wheel 30 is set to K. Wherein K is more than or equal to 1 and less than or equal to 10. For example, the ratio of the first flow guide to the second guide wheel 30 is 1, 2, 3, 5, 8, 10, etc. It should be noted that the outer diameters of the first guide pulley 20 and the second guide pulley 30 are the diameter of the outer peripheral wall of the winding rope.

The first bearing 11 correspondingly supports the first guide wheel 20, and the second bearing 12 correspondingly supports the second guide wheel 30, so as to improve the rotation flexibility of the first guide wheel 20 and the second guide wheel 30 relative to the connecting shaft 10. In one embodiment, the locking member 60 abuts against the first bearing 11, so that the first guide wheel 20 is close to the positions of the clamping member 70 and the locking member 60, that is, the first guide wheel 20 is close to the equipment or material frame to which the double-layer concave guide wheel device is connected. In another embodiment, the locking member 60 abuts against the second bearing 12, so that the second guide wheel 30 is close to the positions of the clamping member 70 and the locking member 60, that is, the second guide wheel 30 is close to the equipment or material frame to which the double-layer concave guide wheel device is connected. The connecting shaft 10 adjusts the connecting direction of the clamping member 70 and the locking member 60, so that the first guide wheel 20, the second guide wheel 30 and the corresponding first pull rope 40 and second pull rope 50 can be adjusted in space layout, and the flexibility of use is improved.

As shown in fig. 3 and 4, in an alternative embodiment, the double-layer idler pulley device further includes a slide rail 80, the slide rail 80 is provided with a slide groove 81, and the clamping member 70 is slidably connected to the slide groove 81 and clamps and locks a groove wall of the slide groove 81 with the locking member 60. The catching member 70 slides along the sliding groove 81, and the connecting shaft 10 is inserted into and connected to the catching member 70 along the notch of the sliding groove 81. The catching member 70 is defined in a groove wall of the sliding groove 81 to define a rotational degree of freedom. The clamping member 70 and the locking member 60 clamp the slide rail 80 together under the driving of the rotating force of the connecting shaft 10 to realize fixed connection and convenient connection. The clamping member 70 slides along the slide rail 80 to flexibly adjust the installation position, and the adjustment is convenient. Alternatively, the sliding groove 81 is configured as a "T" shaped groove, a dovetail groove, a "C" shaped groove, or the like having a stopper groove structure for preventing the engaging member 70 from being disengaged. Optionally, the skid rails 80 are mounted to the material frame or equipment to form a part or removable part of the material frame, improving flexibility of use.

In one embodiment, the locking member 70 includes a sliding portion 71, a connecting portion 72 partially protruding from the sliding portion 71, and a spiral portion 73 penetrating the connecting portion 72, the connecting shaft 10 is spirally connected to the spiral portion 73, and the sliding portion 71 and the locking member 60 form the clamping space therebetween. The sliding part 71 is used for connecting the equipment or the material frame so as to fix the relative position of the clamping member 70 and the material frame. Wherein, the clamping piece 70 is connected with the material frame in a sliding way; alternatively, the clip 70 is fixedly attached to the material frame. The connecting shaft 10 is rotatably connected to the clamping member 70, so that the locking member 60 and other accessories move towards the clamping member 70 under the driving of the connecting shaft 10 until the locking member 60 abuts against the material frame, thereby mounting the double-layer concave guide wheel device on the material frame. For example, the slide rail 80 is configured as a connecting rod of the material frame, the sliding portion 71 is slidably connected to the sliding groove 81, and the connecting portion 72 is extended out of an opening of the sliding groove 81 and is limited to a groove wall of the opening of the sliding groove 81.

In an embodiment, the peripheral wall of the sliding portion 71 is provided with a chamfer 74, the chamfer 74 facing away from the connecting portion 72. The sliding portion 71 is slidably connected to the sliding groove 81, wherein the shape of the sliding portion 71 is adapted to the shape of the sliding groove 81 to improve the sliding stability of the clip 70. Optionally, the sliding portion 71 is configured with a linear chamfer or an arc chamfer of 45 degrees, and the profile cross-sectional dimension of the sliding groove 81 is slightly larger than that of the sliding portion 71, so that the sliding direction of the sliding portion 71 can be limited, the sliding portion 71 can be limited to swing in the sliding groove 81, and the limiting effect is good.

As shown in fig. 3 and 6, the latch 70 and the locking member 60 are folded to be locked and clamped to be fixed to the equipment or material frame. The locking member 60 is sleeved on the connecting shaft 10, and one end of the locking member abuts against the first bearing 11 or the second bearing 12, and the other end of the locking member is opposite to the clamping member 70. In an embodiment, the locking member 60 includes a clamping portion 61, a pushing portion 62 intersecting with the clamping portion 61, and a through mounting hole 63, a minimum outer diameter of the pushing portion 62 is smaller than a minimum outer diameter of the clamping portion 61, and the pushing portion 62 abuts against the first bearing 11 or the second bearing 12. The outer diameter of the abutting portion 62 is smaller than or equal to the size of the bearing inner ring to avoid the rotation interference of the first bearing 11 or the second bearing 12. The clamping portion 61 and the pushing portion 62 are in a step structure to increase the pressing area of the clamping portion 61 and the clamping member 70, and to maintain the overall structural strength of the locking member 60.

In an embodiment, the cross-sectional dimension of the pushing portion 62 gradually decreases from one end to a direction away from the clamping portion 61, that is, the pushing portion 62 is in a frustum-shaped structure, so as to improve the overall strength of the clamping member 70 and limit the axial movement of the first bearing 11 and the second bearing 12.

In an embodiment, the double-layer concave guide wheel device further includes a sleeve frame 13 sleeved on the connecting shaft 10, and two ends of the sleeve frame 13 abut against the first bearing 11 and the second bearing 12 respectively. The sleeve holder 13 is located between the first bearing 11 and the second bearing 12 and defines the inner race pitch of the first bearing 11 and the inner race pitch of the second bearing 12, respectively, so as to stabilize the relative pitches of the first bearing 11 and the second bearing 12. And the first bearing 11 and the second bearing 12 cannot move under the action of axial force, so that the overall dimensional stability is good.

The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. Other structures and principles are the same as those of the prior art, and are not described in detail herein.

Claims (10)

1. The utility model provides a concave guide pulley device of double-deck, its characterized in that includes first guide pulley, link firmly in the second guide pulley of first guide pulley, first stay cord, second stay cord, connecting axle, rotatable coupling in the locking piece of connecting axle, cover are located the first bearing of connecting axle, second bearing and joint spare, first guide pulley cover establish connect in first bearing, first stay cord convolute in first guide pulley, second guide pulley cover establish connect in the second bearing, the second stay cord convolute in the second guide pulley, the locking piece with the centre gripping space has between the joint spare, the joint spare is along with the rotation of connecting axle is adjusted the interval in centre gripping space.

2. The double-layer concave guide wheel device according to claim 1, wherein the first guide wheel and the second guide wheel are detachably connected; or, the first guide wheel and the second guide wheel are integrally formed.

3. The double-layer concave guide wheel device according to claim 2, wherein the outer diameter of the first guide wheel is larger than the outer diameter of the second guide wheel.

4. The double-deck idler device of claim 1, wherein the locking member abuts the first bearing or the second bearing.

5. The double-layer concave guide wheel device according to claim 4, wherein the locking piece comprises a clamping portion, a pushing portion intersecting with the clamping portion, and a through mounting hole, the minimum outer diameter of the pushing portion is smaller than that of the clamping portion, and the pushing portion abuts against the first bearing or the second bearing.

6. The double-layer concave guide wheel device according to claim 5, wherein the cross-sectional dimension of the pushing portion gradually decreases from one end to a direction away from the clamping portion.

7. The double-layer concave guide wheel device according to claim 1, further comprising a sleeve frame sleeved on the connecting shaft, wherein two ends of the sleeve frame are respectively abutted against the first bearing and the second bearing.

8. The double-layer concave guide wheel device according to claim 1, wherein the clamping member comprises a sliding portion, a connecting portion partially protruding from the sliding portion, and a spiral portion penetrating through the connecting portion, the connecting shaft is spirally connected to the spiral portion, and the clamping space is formed between the sliding portion and the locking member.

9. The double-deck idler wheel assembly of claim 8 wherein the outer peripheral wall of the sliding portion is configured with a chamfer that faces away from the connecting portion.

10. The double-layer concave guide wheel device according to claim 1, further comprising a slide rail provided with a slide groove, wherein the clamping member is slidably connected to the slide groove and clamps and locks a groove wall of the slide groove with the locking member.

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